related
high
SharpHound Recon Sessions
Detects remote RPC calls useb by SharpHound to map remote connections and local group membership.
status test
author Sagie Dulce, Dekel Paz
id 6d580420-ff3f-4e0e-b6b0-41b90c787e28
license Sigma · DRL-1.1
view Sigma YAML
title: SharpHound Recon Sessions
id: 6d580420-ff3f-4e0e-b6b0-41b90c787e28
status: test
description: Detects remote RPC calls useb by SharpHound to map remote connections and local group membership.
references:
- https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-srvs/02b1f559-fda2-4ba3-94c2-806eb2777183
- https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/ddd4608fe8684fcf2fcf9b48c5f0b3c28097f8a3/documents/MS-SRVS.md
- https://github.com/zeronetworks/rpcfirewall
- https://zeronetworks.com/blog/stopping-lateral-movement-via-the-rpc-firewall/
author: Sagie Dulce, Dekel Paz
date: 2022-01-01
tags:
- attack.discovery
- attack.t1033
logsource:
product: rpc_firewall
category: application
definition: 'Requirements: install and apply the RPC Firewall to all processes with "audit:true action:block uuid:4b324fc8-1670-01d3-1278-5a47bf6ee188 opnum:12'
detection:
selection:
EventLog: RPCFW
EventID: 3
InterfaceUuid: 4b324fc8-1670-01d3-1278-5a47bf6ee188
OpNum: 12
condition: selection
falsepositives:
- Unknown
level: high
related
high
Possible DCSync Attack
Detects remote RPC calls to MS-DRSR from non DC hosts, which could indicate DCSync / DCShadow attacks.
status test
author Sagie Dulce, Dekel Paz
id 56fda488-113e-4ce9-8076-afc2457922c3
license Sigma · DRL-1.1
view Sigma YAML
title: Possible DCSync Attack
id: 56fda488-113e-4ce9-8076-afc2457922c3
status: test
description: Detects remote RPC calls to MS-DRSR from non DC hosts, which could indicate DCSync / DCShadow attacks.
references:
- https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-drsr/f977faaa-673e-4f66-b9bf-48c640241d47?redirectedfrom=MSDN
- https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/ddd4608fe8684fcf2fcf9b48c5f0b3c28097f8a3/documents/MS-DRSR.md
- https://github.com/zeronetworks/rpcfirewall
- https://zeronetworks.com/blog/stopping-lateral-movement-via-the-rpc-firewall/
author: Sagie Dulce, Dekel Paz
date: 2022-01-01
tags:
- attack.t1033
- attack.discovery
logsource:
product: rpc_firewall
category: application
definition: 'Requirements: install and apply the RPC Firewall to all processes, enable DRSR UUID (e3514235-4b06-11d1-ab04-00c04fc2dcd2) for "dangerous" opcodes (not 0,1 or 12) only from trusted IPs (DCs)'
detection:
selection:
EventLog: RPCFW
EventID: 3
InterfaceUuid: e3514235-4b06-11d1-ab04-00c04fc2dcd2
filter:
OpNum:
- 0
- 1
- 12
condition: selection and not filter
falsepositives:
- Unknown
level: high
related
high
Whoami.EXE Execution From Privileged Process
Detects the execution of "whoami.exe" by privileged accounts that are often abused by threat actors
status test
author Florian Roth (Nextron Systems), Teymur Kheirkhabarov
id 79ce34ca-af29-4d0e-b832-fc1b377020db
license Sigma · DRL-1.1
view Sigma YAML
title: Whoami.EXE Execution From Privileged Process
id: 79ce34ca-af29-4d0e-b832-fc1b377020db
related:
- id: 80167ada-7a12-41ed-b8e9-aa47195c66a1
type: obsolete
status: test
description: Detects the execution of "whoami.exe" by privileged accounts that are often abused by threat actors
references:
- https://speakerdeck.com/heirhabarov/hunting-for-privilege-escalation-in-windows-environment
- https://web.archive.org/web/20221019044836/https://nsudo.m2team.org/en-us/
author: Florian Roth (Nextron Systems), Teymur Kheirkhabarov
date: 2022-01-28
modified: 2023-12-04
tags:
- attack.privilege-escalation
- attack.discovery
- attack.t1033
logsource:
category: process_creation
product: windows
detection:
selection_img:
- OriginalFileName: 'whoami.exe'
- Image|endswith: '\whoami.exe'
selection_user:
User|contains:
- 'AUTHORI'
- 'AUTORI'
- 'TrustedInstaller'
condition: all of selection_*
falsepositives:
- Unknown
level: high
related
high
WhoAmI as Parameter
Detects a suspicious process command line that uses whoami as first parameter (as e.g. used by EfsPotato)
status test
author Florian Roth (Nextron Systems)
id e9142d84-fbe0-401d-ac50-3e519fb00c89
license Sigma · DRL-1.1
view Sigma YAML
title: WhoAmI as Parameter
id: e9142d84-fbe0-401d-ac50-3e519fb00c89
status: test
description: Detects a suspicious process command line that uses whoami as first parameter (as e.g. used by EfsPotato)
references:
- https://twitter.com/blackarrowsec/status/1463805700602224645?s=12
author: Florian Roth (Nextron Systems)
date: 2021-11-29
modified: 2022-12-25
tags:
- attack.discovery
- attack.t1033
- car.2016-03-001
logsource:
category: process_creation
product: windows
detection:
selection:
CommandLine|contains: '.exe whoami'
condition: selection
falsepositives:
- Unknown
level: high
related
high
Security Privileges Enumeration Via Whoami.EXE
Detects a whoami.exe executed with the /priv command line flag instructing the tool to show all current user privileges. This is often used after a privilege escalation attempt.
status test
author Florian Roth (Nextron Systems)
id 97a80ec7-0e2f-4d05-9ef4-65760e634f6b
license Sigma · DRL-1.1
view Sigma YAML
title: Security Privileges Enumeration Via Whoami.EXE
id: 97a80ec7-0e2f-4d05-9ef4-65760e634f6b
status: test
description: Detects a whoami.exe executed with the /priv command line flag instructing the tool to show all current user privileges. This is often used after a privilege escalation attempt.
references:
- https://learn.microsoft.com/en-us/windows-server/administration/windows-commands/whoami
author: Florian Roth (Nextron Systems)
date: 2021-05-05
modified: 2023-02-28
tags:
- attack.privilege-escalation
- attack.discovery
- attack.t1033
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\whoami.exe'
- OriginalFileName: 'whoami.exe'
selection_cli:
CommandLine|contains:
- ' /priv'
- ' -priv'
condition: all of selection_*
falsepositives:
- Unknown
level: high
related
high
HackTool - SharpLdapWhoami Execution
Detects SharpLdapWhoami, a whoami alternative that queries the LDAP service on a domain controller
status test
author Florian Roth (Nextron Systems)
id d9367cbb-c2e0-47ce-bdc0-128cb6da898d
license Sigma · DRL-1.1
view Sigma YAML
title: HackTool - SharpLdapWhoami Execution
id: d9367cbb-c2e0-47ce-bdc0-128cb6da898d
status: test
description: Detects SharpLdapWhoami, a whoami alternative that queries the LDAP service on a domain controller
references:
- https://github.com/bugch3ck/SharpLdapWhoami
author: Florian Roth (Nextron Systems)
date: 2022-08-29
modified: 2023-02-04
tags:
- attack.discovery
- attack.t1033
- car.2016-03-001
logsource:
category: process_creation
product: windows
detection:
selection_name:
Image|endswith: '\SharpLdapWhoami.exe'
selection_pe: # in case the file has been renamed after compilation
- OriginalFileName|contains: 'SharpLdapWhoami'
- Product: 'SharpLdapWhoami'
selection_flags1:
CommandLine|endswith:
- ' /method:ntlm'
- ' /method:kerb'
- ' /method:nego'
- ' /m:nego'
- ' /m:ntlm'
- ' /m:kerb'
condition: 1 of selection*
falsepositives:
- Programs that use the same command line flags
level: high
related
high
HackTool - SharpView Execution
Adversaries may look for details about the network configuration and settings of systems they access or through information discovery of remote systems
status test
author frack113
id b2317cfa-4a47-4ead-b3ff-297438c0bc2d
license Sigma · DRL-1.1
view Sigma YAML
title: HackTool - SharpView Execution
id: b2317cfa-4a47-4ead-b3ff-297438c0bc2d
related:
- id: dcd74b95-3f36-4ed9-9598-0490951643aa
type: similar
status: test
description: Adversaries may look for details about the network configuration and settings of systems they access or through information discovery of remote systems
references:
- https://github.com/tevora-threat/SharpView/
- https://github.com/PowerShellMafia/PowerSploit/blob/d943001a7defb5e0d1657085a77a0e78609be58f/Recon/PowerView.ps1
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1049/T1049.md#atomic-test-4---system-discovery-using-sharpview
author: frack113
date: 2021-12-10
modified: 2023-02-14
tags:
- attack.discovery
- attack.t1049
- attack.t1069.002
- attack.t1482
- attack.t1135
- attack.t1033
logsource:
category: process_creation
product: windows
detection:
selection:
- OriginalFileName: 'SharpView.exe'
- Image|endswith: '\SharpView.exe'
- CommandLine|contains:
# - 'Add-DomainGroupMember'
# - 'Add-DomainObjectAcl'
# - 'Add-ObjectAcl'
- 'Add-RemoteConnection'
- 'Convert-ADName'
- 'ConvertFrom-SID'
- 'ConvertFrom-UACValue'
- 'Convert-SidToName'
# - 'ConvertTo-SID'
- 'Export-PowerViewCSV'
# - 'Find-DomainLocalGroupMember'
- 'Find-DomainObjectPropertyOutlier'
- 'Find-DomainProcess'
- 'Find-DomainShare'
- 'Find-DomainUserEvent'
- 'Find-DomainUserLocation'
- 'Find-ForeignGroup'
- 'Find-ForeignUser'
- 'Find-GPOComputerAdmin'
- 'Find-GPOLocation'
- 'Find-Interesting' # 'Find-InterestingDomainAcl', 'Find-InterestingDomainShareFile', 'Find-InterestingFile'
- 'Find-LocalAdminAccess'
- 'Find-ManagedSecurityGroups'
# - 'Get-ADObject'
- 'Get-CachedRDPConnection'
- 'Get-DFSshare'
# - 'Get-DNSRecord'
# - 'Get-DNSZone'
# - 'Get-Domain'
- 'Get-DomainComputer'
- 'Get-DomainController'
- 'Get-DomainDFSShare'
- 'Get-DomainDNSRecord'
# - 'Get-DomainDNSZone'
- 'Get-DomainFileServer'
- 'Get-DomainForeign' # 'Get-DomainForeignGroupMember', 'Get-DomainForeignUser'
- 'Get-DomainGPO' # 'Get-DomainGPOComputerLocalGroupMapping', 'Get-DomainGPOLocalGroup', 'Get-DomainGPOUserLocalGroupMapping'
- 'Get-DomainGroup' # 'Get-DomainGroupMember'
- 'Get-DomainGUIDMap'
- 'Get-DomainManagedSecurityGroup'
- 'Get-DomainObject' # 'Get-DomainObjectAcl'
- 'Get-DomainOU'
- 'Get-DomainPolicy' # 'Get-DomainPolicyData'
- 'Get-DomainSID'
- 'Get-DomainSite'
- 'Get-DomainSPNTicket'
- 'Get-DomainSubnet'
- 'Get-DomainTrust' # 'Get-DomainTrustMapping'
# - 'Get-DomainUser'
- 'Get-DomainUserEvent'
# - 'Get-Forest'
- 'Get-ForestDomain'
- 'Get-ForestGlobalCatalog'
- 'Get-ForestTrust'
- 'Get-GptTmpl'
- 'Get-GroupsXML'
# - 'Get-GUIDMap'
# - 'Get-IniContent'
# - 'Get-IPAddress'
- 'Get-LastLoggedOn'
- 'Get-LoggedOnLocal'
- 'Get-NetComputer' # 'Get-NetComputerSiteName'
- 'Get-NetDomain' # 'Get-NetDomainController', 'Get-NetDomainTrust'
- 'Get-NetFileServer'
- 'Get-NetForest' # 'Get-NetForestCatalog', 'Get-NetForestDomain', 'Get-NetForestTrust'
- 'Get-NetGPO' # 'Get-NetGPOGroup'
# - 'Get-NetGroup'
- 'Get-NetGroupMember'
- 'Get-NetLocalGroup' # 'Get-NetLocalGroupMember'
- 'Get-NetLoggedon'
- 'Get-NetOU'
- 'Get-NetProcess'
- 'Get-NetRDPSession'
- 'Get-NetSession'
- 'Get-NetShare'
- 'Get-NetSite'
- 'Get-NetSubnet'
- 'Get-NetUser'
# - 'Get-ObjectAcl'
- 'Get-PathAcl'
- 'Get-PrincipalContext'
# - 'Get-Proxy'
- 'Get-RegistryMountedDrive'
- 'Get-RegLoggedOn'
# - 'Get-SiteName'
# - 'Get-UserEvent'
# - 'Get-WMIProcess'
- 'Get-WMIRegCachedRDPConnection'
- 'Get-WMIRegLastLoggedOn'
- 'Get-WMIRegMountedDrive'
- 'Get-WMIRegProxy'
- 'Invoke-ACLScanner'
- 'Invoke-CheckLocalAdminAccess'
- 'Invoke-Kerberoast'
- 'Invoke-MapDomainTrust'
- 'Invoke-RevertToSelf'
- 'Invoke-Sharefinder'
- 'Invoke-UserImpersonation'
# - 'New-DomainGroup'
# - 'New-DomainUser'
- 'Remove-DomainObjectAcl'
- 'Remove-RemoteConnection'
- 'Request-SPNTicket'
# - 'Resolve-IPAddress'
# - 'Set-ADObject'
- 'Set-DomainObject'
# - 'Set-DomainUserPassword'
- 'Test-AdminAccess'
condition: selection
falsepositives:
- Unknown
level: high
related
high
Windows Binaries Write Suspicious Extensions
Detects Windows executables that write files with suspicious extensions
status test
author Nasreddine Bencherchali (Nextron Systems)
id b8fd0e93-ff58-4cbd-8f48-1c114e342e62
license Sigma · DRL-1.1
view Sigma YAML
title: Windows Binaries Write Suspicious Extensions
id: b8fd0e93-ff58-4cbd-8f48-1c114e342e62
related:
- id: 1277f594-a7d1-4f28-a2d3-73af5cbeab43
type: derived
status: test
description: Detects Windows executables that write files with suspicious extensions
references:
- Internal Research
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-08-12
modified: 2025-10-07
tags:
- attack.stealth
- attack.t1036
logsource:
category: file_event
product: windows
detection:
selection_generic:
Image|endswith:
- '\csrss.exe'
- '\lsass.exe'
- '\RuntimeBroker.exe'
- '\sihost.exe'
- '\smss.exe'
- '\wininit.exe'
- '\winlogon.exe'
TargetFilename|endswith:
- '.bat'
- '.dll'
- '.exe'
- '.hta'
- '.iso'
- '.ps1'
- '.txt'
- '.vbe'
- '.vbs'
selection_special:
Image|endswith:
- '\dllhost.exe'
- '\rundll32.exe'
- '\svchost.exe'
TargetFilename|endswith:
- '.bat'
- '.hta'
- '.iso'
- '.ps1'
- '.vbe'
- '.vbs'
filter_main_AppLockerPolicyTest:
Image: 'C:\Windows\System32\dllhost.exe'
TargetFilename|contains|all:
- ':\Users\'
- '\AppData\Local\Temp\__PSScriptPolicyTest_'
TargetFilename|endswith: '.ps1'
filter_main_script_gpo_machine:
Image: 'C:\Windows\system32\svchost.exe'
TargetFilename|contains|all:
- 'C:\Windows\System32\GroupPolicy\DataStore\'
- '\sysvol\'
- '\Policies\'
- '\Machine\Scripts\Startup\'
TargetFilename|endswith:
- '.ps1'
- '.bat'
filter_main_clipchamp:
Image: 'C:\Windows\system32\svchost.exe'
TargetFilename|contains|all:
- 'C:\Program Files\WindowsApps\Clipchamp'
- '.ps1'
filter_main_powershell_preview:
Image:
- 'C:\Windows\system32\svchost.exe'
- 'C:\Windows\SysWOW64\svchost.exe'
TargetFilename|startswith:
- 'C:\Program Files\WindowsApps\Microsoft.PowerShellPreview'
- 'C:\Program Files (x86)\WindowsApps\Microsoft.PowerShellPreview'
TargetFilename|endswith: '.ps1'
condition: 1 of selection_* and not 1 of filter_main_*
falsepositives:
- Unknown
level: high
related
high
Renamed CreateDump Utility Execution
Detects uses of a renamed legitimate createdump.exe LOLOBIN utility to dump process memory
status test
author Florian Roth (Nextron Systems)
id 1a1ed54a-2ba4-4221-94d5-01dee560d71e
license Sigma · DRL-1.1
view Sigma YAML
title: Renamed CreateDump Utility Execution
id: 1a1ed54a-2ba4-4221-94d5-01dee560d71e
related:
- id: 515c8be5-e5df-4c5e-8f6d-a4a2f05e4b48
type: similar
status: test
description: Detects uses of a renamed legitimate createdump.exe LOLOBIN utility to dump process memory
references:
- https://www.crowdstrike.com/blog/overwatch-exposes-aquatic-panda-in-possession-of-log-4-shell-exploit-tools/
- https://twitter.com/bopin2020/status/1366400799199272960
author: Florian Roth (Nextron Systems)
date: 2022-09-20
modified: 2023-02-14
tags:
- attack.stealth
- attack.t1036
- attack.t1003.001
- attack.credential-access
logsource:
category: process_creation
product: windows
detection:
selection_pe:
OriginalFileName: 'FX_VER_INTERNALNAME_STR'
selection_cli:
- CommandLine|contains|all:
- ' -u ' # Short version of '--full'
- ' -f ' # Short version of '--name'
- '.dmp'
- CommandLine|contains|all:
- ' --full ' # Short version of '--full'
- ' --name ' # Short version of '--name'
- '.dmp'
filter:
Image|endswith: '\createdump.exe'
condition: 1 of selection_* and not filter
falsepositives:
- Command lines that use the same flags
level: high
related
high
Forfiles.EXE Child Process Masquerading
Detects the execution of "forfiles" from a non-default location, in order to potentially spawn a custom "cmd.exe" from the current working directory.
status test
author Nasreddine Bencherchali (Nextron Systems), Anish Bogati
id f53714ec-5077-420e-ad20-907ff9bb2958
license Sigma · DRL-1.1
view Sigma YAML
title: Forfiles.EXE Child Process Masquerading
id: f53714ec-5077-420e-ad20-907ff9bb2958
status: test
description: |
Detects the execution of "forfiles" from a non-default location, in order to potentially spawn a custom "cmd.exe" from the current working directory.
references:
- https://www.hexacorn.com/blog/2023/12/31/1-little-known-secret-of-forfiles-exe/
author: Nasreddine Bencherchali (Nextron Systems), Anish Bogati
date: 2024-01-05
tags:
- attack.stealth
- attack.t1036
logsource:
category: process_creation
product: windows
detection:
selection:
# Notes:
# - The parent must not have CLI options
# - The Child Image must be named "cmd" as its hardcoded in the "forfiles" binary
# - The Child CLI will always contains "/c echo" as its hardcoded in the original "forfiles" binary
ParentCommandLine|endswith:
- '.exe'
- '.exe"'
Image|endswith: '\cmd.exe'
CommandLine|startswith: '/c echo "'
filter_main_parent_not_sys:
ParentImage|contains:
- ':\Windows\System32\'
- ':\Windows\SysWOW64\'
ParentImage|endswith: '\forfiles.exe'
Image|contains:
- ':\Windows\System32\'
- ':\Windows\SysWOW64\'
Image|endswith: '\cmd.exe'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: high
related
high
CreateDump Process Dump
Detects uses of the createdump.exe LOLOBIN utility to dump process memory
status test
author Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
id 515c8be5-e5df-4c5e-8f6d-a4a2f05e4b48
license Sigma · DRL-1.1
view Sigma YAML
title: CreateDump Process Dump
id: 515c8be5-e5df-4c5e-8f6d-a4a2f05e4b48
related:
- id: 1a1ed54a-2ba4-4221-94d5-01dee560d71e
type: similar
status: test
description: Detects uses of the createdump.exe LOLOBIN utility to dump process memory
references:
- https://www.crowdstrike.com/blog/overwatch-exposes-aquatic-panda-in-possession-of-log-4-shell-exploit-tools/
- https://twitter.com/bopin2020/status/1366400799199272960
author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
date: 2022-01-04
modified: 2022-08-19
tags:
- attack.stealth
- attack.t1036
- attack.t1003.001
- attack.credential-access
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\createdump.exe'
- OriginalFileName: 'FX_VER_INTERNALNAME_STR'
selection_cli:
CommandLine|contains:
- ' -u ' # Short version of '--full'
- ' --full '
- ' -f ' # Short version of '--name'
- ' --name '
- '.dmp '
condition: all of selection_*
falsepositives:
- Command lines that use the same flags
level: high
related
high
Process Memory Dump Via Comsvcs.DLL
Detects a process memory dump via "comsvcs.dll" using rundll32, covering multiple different techniques (ordinal, minidump function, etc.)
status test
author Florian Roth (Nextron Systems), Modexp, Nasreddine Bencherchali (Nextron Systems), Swachchhanda Shrawan Poudel (Nextron Systems)
id 646ea171-dded-4578-8a4d-65e9822892e3
license Sigma · DRL-1.1
view Sigma YAML
title: Process Memory Dump Via Comsvcs.DLL
id: 646ea171-dded-4578-8a4d-65e9822892e3
related:
- id: 09e6d5c0-05b8-4ff8-9eeb-043046ec774c
type: obsolete
status: test
description: Detects a process memory dump via "comsvcs.dll" using rundll32, covering multiple different techniques (ordinal, minidump function, etc.)
references:
- https://twitter.com/shantanukhande/status/1229348874298388484
- https://twitter.com/pythonresponder/status/1385064506049630211?s=21
- https://twitter.com/Hexacorn/status/1224848930795552769
- https://modexp.wordpress.com/2019/08/30/minidumpwritedump-via-com-services-dll/
- https://twitter.com/SBousseaden/status/1167417096374050817
- https://twitter.com/Wietze/status/1542107456507203586
- https://github.com/Hackndo/lsassy/blob/14d8f8ae596ecf22b449bfe919829173b8a07635/lsassy/dumpmethod/comsvcs.py
- https://www.youtube.com/watch?v=52tAmVLg1KM&t=2070s
author: Florian Roth (Nextron Systems), Modexp, Nasreddine Bencherchali (Nextron Systems), Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2020-02-18
modified: 2025-02-23
tags:
- attack.credential-access
- attack.stealth
- attack.t1036
- attack.t1003.001
- car.2013-05-009
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\rundll32.exe'
- OriginalFileName: 'RUNDLL32.EXE'
- CommandLine|contains: 'rundll32'
selection_cli_1:
CommandLine|contains|all:
- 'comsvcs'
- 'full'
CommandLine|contains:
- '#-'
- '#+'
- '#24'
- '24 '
- 'MiniDump' # Matches MiniDump and MinidumpW
- '#65560' # ordinal is 16 bit ordinal, so if you make the number large enough (don't fit in 16 bit space), then it normally wraps around. for e.g ordinal 24 can be also represented by 65560 (65536+24)
selection_generic:
CommandLine|contains|all:
- '24'
- 'comsvcs'
- 'full'
CommandLine|contains:
- ' #'
- ',#'
- ', #'
- '"#'
condition: (selection_img and 1 of selection_cli_*) or selection_generic
falsepositives:
- Unlikely
level: high
related
high
Process Execution From A Potentially Suspicious Folder
Detects a potentially suspicious execution from an uncommon folder.
status test
author Florian Roth (Nextron Systems), Tim Shelton
id 3dfd06d2-eaf4-4532-9555-68aca59f57c4
license Sigma · DRL-1.1
view Sigma YAML
title: Process Execution From A Potentially Suspicious Folder
id: 3dfd06d2-eaf4-4532-9555-68aca59f57c4
status: test
description: Detects a potentially suspicious execution from an uncommon folder.
references:
- https://github.com/mbevilacqua/appcompatprocessor/blob/6c847937c5a836e2ce2fe2b915f213c345a3c389/AppCompatSearch.txt
- https://www.secureworks.com/research/bronze-butler-targets-japanese-businesses
- https://www.crowdstrike.com/resources/reports/2019-crowdstrike-global-threat-report/
- https://github.com/ThreatHuntingProject/ThreatHunting/blob/cb22598bb70651f88e0285abc8d835757d2cb596/hunts/suspicious_process_creation_via_windows_event_logs.md
author: Florian Roth (Nextron Systems), Tim Shelton
date: 2019-01-16
modified: 2024-07-12
tags:
- attack.stealth
- attack.t1036
logsource:
category: process_creation
product: windows
detection:
selection:
Image|contains:
- ':\Perflogs\'
- ':\Users\All Users\'
- ':\Users\Default\'
- ':\Users\NetworkService\'
- ':\Windows\addins\'
- ':\Windows\debug\'
- ':\Windows\Fonts\'
- ':\Windows\Help\'
- ':\Windows\IME\'
- ':\Windows\Media\'
- ':\Windows\repair\'
- ':\Windows\security\'
- ':\Windows\System32\Tasks\'
- ':\Windows\Tasks\'
- '$Recycle.bin'
- '\config\systemprofile\'
- '\Intel\Logs\'
- '\RSA\MachineKeys\'
filter_optional_ibm:
Image|startswith: 'C:\Users\Public\IBM\ClientSolutions\Start_Programs\'
filter_optional_citrix:
Image|startswith: 'C:\Windows\SysWOW64\config\systemprofile\Citrix\UpdaterBinaries\'
Image|endswith: '\CitrixReceiverUpdater.exe'
condition: selection and not 1 of filter_optional_*
falsepositives:
- Unknown
level: high
related
high
Taskmgr as LOCAL_SYSTEM
Detects the creation of taskmgr.exe process in context of LOCAL_SYSTEM
status test
author Florian Roth (Nextron Systems)
id 9fff585c-c33e-4a86-b3cd-39312079a65f
license Sigma · DRL-1.1
view Sigma YAML
title: Taskmgr as LOCAL_SYSTEM
id: 9fff585c-c33e-4a86-b3cd-39312079a65f
status: test
description: Detects the creation of taskmgr.exe process in context of LOCAL_SYSTEM
references:
- Internal Research
author: Florian Roth (Nextron Systems)
date: 2018-03-18
modified: 2022-05-27
tags:
- attack.stealth
- attack.t1036
logsource:
category: process_creation
product: windows
detection:
selection:
User|contains: # covers many language settings
- 'AUTHORI'
- 'AUTORI'
Image|endswith: '\taskmgr.exe'
condition: selection
falsepositives:
- Unknown
level: high
related
high
HackTool - XORDump Execution
Detects suspicious use of XORDump process memory dumping utility
status test
author Florian Roth (Nextron Systems)
id 66e563f9-1cbd-4a22-a957-d8b7c0f44372
license Sigma · DRL-1.1
view Sigma YAML
title: HackTool - XORDump Execution
id: 66e563f9-1cbd-4a22-a957-d8b7c0f44372
status: test
description: Detects suspicious use of XORDump process memory dumping utility
references:
- https://github.com/audibleblink/xordump
author: Florian Roth (Nextron Systems)
date: 2022-01-28
modified: 2023-02-08
tags:
- attack.stealth
- attack.t1036
- attack.t1003.001
- attack.credential-access
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith: '\xordump.exe'
- CommandLine|contains:
- ' -process lsass.exe '
- ' -m comsvcs '
- ' -m dbghelp '
- ' -m dbgcore '
condition: selection
falsepositives:
- Another tool that uses the command line switches of XORdump
level: high
related
high
Suspicious DumpMinitool Execution
Detects suspicious ways to use the "DumpMinitool.exe" binary
status test
author Florian Roth (Nextron Systems)
id eb1c4225-1c23-4241-8dd4-051389fde4ce
license Sigma · DRL-1.1
view Sigma YAML
title: Suspicious DumpMinitool Execution
id: eb1c4225-1c23-4241-8dd4-051389fde4ce
status: test
description: Detects suspicious ways to use the "DumpMinitool.exe" binary
references:
- https://twitter.com/mrd0x/status/1511415432888131586
- https://twitter.com/mrd0x/status/1511489821247684615
- https://lolbas-project.github.io/lolbas/OtherMSBinaries/DumpMinitool/
author: Florian Roth (Nextron Systems)
date: 2022-04-06
modified: 2023-04-12
tags:
- attack.credential-access
- attack.stealth
- attack.t1036
- attack.t1003.001
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith:
- '\DumpMinitool.exe'
- '\DumpMinitool.x86.exe'
- '\DumpMinitool.arm64.exe'
- OriginalFileName:
- 'DumpMinitool.exe'
- 'DumpMinitool.x86.exe'
- 'DumpMinitool.arm64.exe'
filter_folder:
Image|contains:
- '\Microsoft Visual Studio\'
- '\Extensions\' # https://github.com/microsoft/vstest/blob/b2e2126f1aa7e5753cafe9515563c99ade6a59ce/src/package/nuspec/Microsoft.TestPlatform.Portable.nuspec#L159
susp_flags:
CommandLine|contains: '.txt'
cmd_has_flags:
CommandLine|contains:
- ' Full'
- ' Mini'
- ' WithHeap'
filter_cmd_misses_flags:
CommandLine|contains: '--dumpType'
condition: selection and ( ( not filter_folder ) or susp_flags or ( cmd_has_flags and not filter_cmd_misses_flags ) )
falsepositives:
- Unknown
level: high
related
high
Potential SysInternals ProcDump Evasion
Detects uses of the SysInternals ProcDump utility in which ProcDump or its output get renamed, or a dump file is moved or copied to a different name
status test
author Florian Roth (Nextron Systems)
id 79b06761-465f-4f88-9ef2-150e24d3d737
license Sigma · DRL-1.1
view Sigma YAML
title: Potential SysInternals ProcDump Evasion
id: 79b06761-465f-4f88-9ef2-150e24d3d737
status: test
description: Detects uses of the SysInternals ProcDump utility in which ProcDump or its output get renamed, or a dump file is moved or copied to a different name
references:
- https://twitter.com/mrd0x/status/1480785527901204481
author: Florian Roth (Nextron Systems)
date: 2022-01-11
modified: 2023-05-09
tags:
- attack.stealth
- attack.t1036
- attack.t1003.001
- attack.credential-access
logsource:
category: process_creation
product: windows
detection:
selection_1:
CommandLine|contains:
- 'copy procdump'
- 'move procdump'
selection_2:
CommandLine|contains|all:
- 'copy '
- '.dmp '
CommandLine|contains:
- '2.dmp'
- 'lsass'
- 'out.dmp'
selection_3:
CommandLine|contains:
- 'copy lsass.exe_' # procdump default pattern e.g. lsass.exe_220111_085234.dmp
- 'move lsass.exe_' # procdump default pattern e.g. lsass.exe_220111_085234.dmp
condition: 1 of selection_*
falsepositives:
- False positives are expected in cases in which ProcDump just gets copied to a different directory without any renaming
level: high
related
high
System File Execution Location Anomaly
Detects the execution of a Windows system binary that is usually located in the system folder from an uncommon location.
status test
author Florian Roth (Nextron Systems), Patrick Bareiss, Anton Kutepov, oscd.community, Nasreddine Bencherchali (Nextron Systems)
id e4a6b256-3e47-40fc-89d2-7a477edd6915
license Sigma · DRL-1.1
view Sigma YAML
title: System File Execution Location Anomaly
id: e4a6b256-3e47-40fc-89d2-7a477edd6915
related:
- id: be58d2e2-06c8-4f58-b666-b99f6dc3b6cd # Dedicated SvcHost rule
type: derived
status: test
description: |
Detects the execution of a Windows system binary that is usually located in the system folder from an uncommon location.
references:
- https://twitter.com/GelosSnake/status/934900723426439170
- https://asec.ahnlab.com/en/39828/
- https://www.splunk.com/en_us/blog/security/inno-setup-malware-redline-stealer-campaign.html
author: Florian Roth (Nextron Systems), Patrick Bareiss, Anton Kutepov, oscd.community, Nasreddine Bencherchali (Nextron Systems)
date: 2017-11-27
modified: 2026-02-12
tags:
- attack.stealth
- attack.t1036
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith:
- '\atbroker.exe'
- '\audiodg.exe'
- '\bcdedit.exe'
- '\bitsadmin.exe'
- '\certreq.exe'
- '\certutil.exe'
- '\cmstp.exe'
- '\conhost.exe'
- '\consent.exe'
- '\cscript.exe'
- '\csrss.exe'
- '\dashost.exe'
- '\defrag.exe'
- '\dfrgui.exe' # Was seen used by Lazarus Group - https://asec.ahnlab.com/en/39828/
- '\dism.exe'
- '\dllhost.exe'
- '\dllhst3g.exe'
- '\dwm.exe'
- '\eventvwr.exe'
- '\fsquirt.exe' # was seen used by sidewinder APT - https://securelist.com/sidewinder-apt/114089/
- '\finger.exe'
- '\logonui.exe'
- '\LsaIso.exe'
- '\lsass.exe'
- '\lsm.exe'
- '\msiexec.exe'
- '\ntoskrnl.exe'
- '\powershell_ise.exe'
- '\powershell.exe'
- '\pwsh.exe'
- '\regsvr32.exe'
- '\rundll32.exe'
- '\runonce.exe'
- '\RuntimeBroker.exe'
- '\schtasks.exe'
- '\services.exe'
- '\sihost.exe'
- '\smartscreen.exe'
- '\smss.exe'
- '\spoolsv.exe'
- '\svchost.exe'
- '\taskhost.exe'
- '\taskhostw.exe'
- '\Taskmgr.exe'
- '\userinit.exe'
- '\werfault.exe'
- '\werfaultsecure.exe'
- '\wininit.exe'
- '\winlogon.exe'
- '\winver.exe'
- '\wlanext.exe'
- '\wscript.exe'
- '\wsl.exe'
- '\wsmprovhost.exe' # Was seen used by Lazarus Group - https://asec.ahnlab.com/en/39828/
filter_main_generic:
Image|startswith:
- 'C:\$WINDOWS.~BT\'
- 'C:\$WinREAgent\'
- 'C:\Windows\SoftwareDistribution\'
- 'C:\Windows\System32\'
- 'C:\Windows\SystemTemp\'
- 'C:\Windows\SysWOW64\'
- 'C:\Windows\uus\'
- 'C:\Windows\WinSxS\'
filter_optional_system32:
Image|contains: '\SystemRoot\System32\'
filter_main_powershell:
Image|contains:
- 'C:\Program Files\PowerShell\7\'
- 'C:\Program Files\PowerShell\7-preview\'
- 'C:\Program Files\WindowsApps\Microsoft.PowerShellPreview'
- '\AppData\Local\Microsoft\WindowsApps\Microsoft.PowerShellPreview' # pwsh installed from Microsoft Store
Image|endswith: '\pwsh.exe'
filter_main_wsl_programfiles:
Image|startswith:
- 'C:\Program Files\WindowsApps\MicrosoftCorporationII.WindowsSubsystemForLinux'
- 'C:\Program Files\WSL\'
Image|endswith: '\wsl.exe'
filter_main_wsl_appdata:
Image|startswith: C:\Users\'
Image|contains: '\AppData\Local\Microsoft\WindowsApps\'
Image|endswith: '\wsl.exe'
condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*
falsepositives:
- Unknown
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_susp_system_exe_anomaly/info.yml
related
high
Suspicious MSDT Parent Process
Detects msdt.exe executed by a suspicious parent as seen in CVE-2022-30190 / Follina exploitation
status test
author Nextron Systems
id 7a74da6b-ea76-47db-92cc-874ad90df734
license Sigma · DRL-1.1
view Sigma YAML
title: Suspicious MSDT Parent Process
id: 7a74da6b-ea76-47db-92cc-874ad90df734
status: test
description: Detects msdt.exe executed by a suspicious parent as seen in CVE-2022-30190 / Follina exploitation
references:
- https://twitter.com/nao_sec/status/1530196847679401984
- https://app.any.run/tasks/713f05d2-fe78-4b9d-a744-f7c133e3fafb/
author: Nextron Systems
date: 2022-06-01
modified: 2023-02-06
tags:
- attack.stealth
- attack.t1036
- attack.t1218
logsource:
category: process_creation
product: windows
detection:
selection_parent:
ParentImage|endswith:
- '\cmd.exe'
- '\cscript.exe'
- '\mshta.exe'
- '\powershell.exe'
- '\pwsh.exe'
- '\regsvr32.exe'
- '\rundll32.exe'
- '\schtasks.exe'
- '\wmic.exe'
- '\wscript.exe'
- '\wsl.exe'
# Note: office applications are covered by: 438025f9-5856-4663-83f7-52f878a70a50
selection_msdt:
- Image|endswith: '\msdt.exe'
- OriginalFileName: 'msdt.exe'
condition: all of selection_*
falsepositives:
- Unknown
level: high
related
high
Suspicious Windows Update Agent Empty Cmdline
Detects suspicious Windows Update Agent activity in which a wuauclt.exe process command line doesn't contain any command line flags
status test
author Florian Roth (Nextron Systems)
id 52d097e2-063e-4c9c-8fbb-855c8948d135
license Sigma · DRL-1.1
view Sigma YAML
title: Suspicious Windows Update Agent Empty Cmdline
id: 52d097e2-063e-4c9c-8fbb-855c8948d135
status: test
description: |
Detects suspicious Windows Update Agent activity in which a wuauclt.exe process command line doesn't contain any command line flags
references:
- https://redcanary.com/blog/blackbyte-ransomware/
author: Florian Roth (Nextron Systems)
date: 2022-02-26
modified: 2023-11-11
tags:
- attack.stealth
- attack.t1036
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\Wuauclt.exe'
- OriginalFileName: 'Wuauclt.exe'
selection_cli:
CommandLine|endswith:
- 'Wuauclt'
- 'Wuauclt.exe'
condition: all of selection*
falsepositives:
- Unknown
level: high
related
high
Suspicious Calculator Usage
Detects suspicious use of 'calc.exe' with command line parameters or in a suspicious directory, which is likely caused by some PoC or detection evasion.
status test
author Florian Roth (Nextron Systems)
id 737e618a-a410-49b5-bec3-9e55ff7fbc15
license Sigma · DRL-1.1
view Sigma YAML
title: Suspicious Calculator Usage
id: 737e618a-a410-49b5-bec3-9e55ff7fbc15
status: test
description: |
Detects suspicious use of 'calc.exe' with command line parameters or in a suspicious directory, which is likely caused by some PoC or detection evasion.
references:
- https://twitter.com/ItsReallyNick/status/1094080242686312448
author: Florian Roth (Nextron Systems)
date: 2019-02-09
modified: 2023-11-09
tags:
- attack.stealth
- attack.t1036
logsource:
category: process_creation
product: windows
detection:
selection_1:
CommandLine|contains: '\calc.exe '
selection_2:
Image|endswith: '\calc.exe'
filter_main_known_locations:
Image|contains:
- ':\Windows\System32\'
- ':\Windows\SysWOW64\'
- ':\Windows\WinSxS\'
condition: selection_1 or ( selection_2 and not filter_main_known_locations )
falsepositives:
- Unknown
level: high
related
high
Potential LSASS Process Dump Via Procdump
Detects potential credential harvesting attempts through LSASS memory dumps using ProcDump.
This rule identifies suspicious command-line patterns that combine memory dump flags (-ma, -mm, -mp) with LSASS-related process markers.
LSASS (Local Security Authority Subsystem Service) contains sensitive authentication data including plaintext passwords, NTLM hashes, and Kerberos tickets in memory.
Attackers commonly dump LSASS memory to extract credentials for lateral movement and privilege escalation.
status stable
author Florian Roth (Nextron Systems)
id 5afee48e-67dd-4e03-a783-f74259dcf998
license Sigma · DRL-1.1
view Sigma YAML
title: Potential LSASS Process Dump Via Procdump
id: 5afee48e-67dd-4e03-a783-f74259dcf998
status: stable
description: |
Detects potential credential harvesting attempts through LSASS memory dumps using ProcDump.
This rule identifies suspicious command-line patterns that combine memory dump flags (-ma, -mm, -mp) with LSASS-related process markers.
LSASS (Local Security Authority Subsystem Service) contains sensitive authentication data including plaintext passwords, NTLM hashes, and Kerberos tickets in memory.
Attackers commonly dump LSASS memory to extract credentials for lateral movement and privilege escalation.
references:
- https://learn.microsoft.com/en-us/sysinternals/downloads/procdump
- https://research.splunk.com/endpoint/3742ebfe-64c2-11eb-ae93-0242ac130002
- https://x.com/wietze/status/1958302556033065292?s=12
author: Florian Roth (Nextron Systems)
date: 2018-10-30
modified: 2025-10-19
tags:
- attack.stealth
- attack.t1036
- attack.credential-access
- attack.t1003.001
- car.2013-05-009
logsource:
category: process_creation
product: windows
detection:
selection_flags:
CommandLine|contains|windash:
- ' -ma '
- ' -mm ' # Mini dump
- ' -mp ' # Miniplus dump
selection_process:
CommandLine|contains:
- ' ls' # Short for lsass
- ' keyiso'
- ' samss'
condition: all of selection_*
falsepositives:
- Unlikely, because no one should dump an lsass process memory
- Another tool that uses command line flags similar to ProcDump
level: high
related
high
Suspicious Child Process Of Wermgr.EXE
Detects suspicious Windows Error Reporting manager (wermgr.exe) child process
status test
author Florian Roth (Nextron Systems)
id 396f6630-f3ac-44e3-bfc8-1b161bc00c4e
license Sigma · DRL-1.1
view Sigma YAML
title: Suspicious Child Process Of Wermgr.EXE
id: 396f6630-f3ac-44e3-bfc8-1b161bc00c4e
related:
- id: 5394fcc7-aeb2-43b5-9a09-cac9fc5edcd5
type: similar
status: test
description: Detects suspicious Windows Error Reporting manager (wermgr.exe) child process
references:
- https://www.trendmicro.com/en_us/research/22/j/black-basta-infiltrates-networks-via-qakbot-brute-ratel-and-coba.html
- https://www.echotrail.io/insights/search/wermgr.exe
- https://github.com/binderlabs/DirCreate2System
author: Florian Roth (Nextron Systems)
date: 2022-10-14
modified: 2024-08-29
tags:
- attack.privilege-escalation
- attack.stealth
- attack.t1055
- attack.t1036
logsource:
category: process_creation
product: windows
detection:
selection:
ParentImage|endswith: '\wermgr.exe'
Image|endswith:
- '\cmd.exe'
- '\cscript.exe'
- '\ipconfig.exe'
- '\mshta.exe'
- '\net.exe'
- '\net1.exe'
- '\netstat.exe'
- '\nslookup.exe'
- '\powershell_ise.exe'
- '\powershell.exe'
- '\pwsh.exe'
- '\regsvr32.exe'
- '\rundll32.exe'
- '\systeminfo.exe'
- '\whoami.exe'
- '\wscript.exe'
filter_main_rundll32:
Image|endswith: '\rundll32.exe'
CommandLine|contains|all:
- 'C:\Windows\system32\WerConCpl.dll'
- 'LaunchErcApp '
CommandLine|contains:
- '-queuereporting'
- '-responsepester'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: high
related
high
Renamed ZOHO Dctask64 Execution
Detects a renamed "dctask64.exe" execution, a signed binary by ZOHO Corporation part of ManageEngine Endpoint Central.
This binary can be abused for DLL injection, arbitrary command and process execution.
status test
author Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
id 340a090b-c4e9-412e-bb36-b4b16fe96f9b
license Sigma · DRL-1.1
view Sigma YAML
title: Renamed ZOHO Dctask64 Execution
id: 340a090b-c4e9-412e-bb36-b4b16fe96f9b
status: test
description: |
Detects a renamed "dctask64.exe" execution, a signed binary by ZOHO Corporation part of ManageEngine Endpoint Central.
This binary can be abused for DLL injection, arbitrary command and process execution.
references:
- https://twitter.com/gN3mes1s/status/1222088214581825540
- https://twitter.com/gN3mes1s/status/1222095963789111296
- https://twitter.com/gN3mes1s/status/1222095371175911424
author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
date: 2020-01-28
modified: 2025-01-22
tags:
- attack.privilege-escalation
- attack.stealth
- attack.t1036
- attack.t1055.001
- attack.t1202
- attack.t1218
logsource:
category: process_creation
product: windows
detection:
selection:
Hashes|contains:
- 'IMPHASH=6834B1B94E49701D77CCB3C0895E1AFD'
- 'IMPHASH=1BB6F93B129F398C7C4A76BB97450BBA'
- 'IMPHASH=FAA2AC19875FADE461C8D89DCF2710A3'
- 'IMPHASH=F1039CED4B91572AB7847D26032E6BBF'
filter_main_legit_name:
Image|endswith: '\dctask64.exe'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: high
related
high
Sdiagnhost Calling Suspicious Child Process
Detects sdiagnhost.exe calling a suspicious child process (e.g. used in exploits for Follina / CVE-2022-30190)
status test
author Nextron Systems, @Kostastsale
id f3d39c45-de1a-4486-a687-ab126124f744
license Sigma · DRL-1.1
view Sigma YAML
title: Sdiagnhost Calling Suspicious Child Process
id: f3d39c45-de1a-4486-a687-ab126124f744
status: test
description: Detects sdiagnhost.exe calling a suspicious child process (e.g. used in exploits for Follina / CVE-2022-30190)
references:
- https://twitter.com/nao_sec/status/1530196847679401984
- https://doublepulsar.com/follina-a-microsoft-office-code-execution-vulnerability-1a47fce5629e
- https://app.any.run/tasks/713f05d2-fe78-4b9d-a744-f7c133e3fafb/
- https://app.any.run/tasks/f420d295-0457-4e9b-9b9e-6732be227583/
- https://app.any.run/tasks/c4117d9a-f463-461a-b90f-4cd258746798/
author: Nextron Systems, @Kostastsale
date: 2022-06-01
modified: 2024-08-23
tags:
- attack.stealth
- attack.t1036
- attack.t1218
logsource:
category: process_creation
product: windows
detection:
selection:
ParentImage|endswith: '\sdiagnhost.exe'
Image|endswith:
# Add more suspicious LOLBins
- '\powershell.exe'
- '\pwsh.exe'
- '\cmd.exe'
- '\mshta.exe'
- '\cscript.exe'
- '\wscript.exe'
- '\taskkill.exe'
- '\regsvr32.exe'
- '\rundll32.exe'
# - '\csc.exe' # https://app.any.run/tasks/f420d295-0457-4e9b-9b9e-6732be227583/
- '\calc.exe' # https://app.any.run/tasks/f420d295-0457-4e9b-9b9e-6732be227583/
filter_main_cmd_bits:
Image|endswith: '\cmd.exe'
CommandLine|contains: 'bits'
filter_main_powershell_noprofile:
Image|endswith: '\powershell.exe'
CommandLine|endswith:
- '-noprofile -'
- '-noprofile'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: high
related
high
Suspicious Process Parents
Detects suspicious parent processes that should not have any children or should only have a single possible child program
status test
author Florian Roth (Nextron Systems)
id cbec226f-63d9-4eca-9f52-dfb6652f24df
license Sigma · DRL-1.1
view Sigma YAML
title: Suspicious Process Parents
id: cbec226f-63d9-4eca-9f52-dfb6652f24df
status: test
description: Detects suspicious parent processes that should not have any children or should only have a single possible child program
references:
- https://twitter.com/x86matthew/status/1505476263464607744?s=12
- https://svch0st.medium.com/stats-from-hunting-cobalt-strike-beacons-c17e56255f9b
author: Florian Roth (Nextron Systems)
date: 2022-03-21
modified: 2022-09-08
tags:
- attack.stealth
- attack.t1036
logsource:
category: process_creation
product: windows
detection:
selection:
ParentImage|endswith:
- '\minesweeper.exe'
- '\winver.exe'
- '\bitsadmin.exe'
selection_special:
ParentImage|endswith:
- '\csrss.exe'
- '\certutil.exe'
# - '\schtasks.exe'
- '\eventvwr.exe'
- '\calc.exe'
- '\notepad.exe'
filter_special:
Image|endswith:
- '\WerFault.exe'
- '\wermgr.exe'
- '\conhost.exe' # csrss.exe, certutil.exe
- '\mmc.exe' # eventvwr.exe
- '\win32calc.exe' # calc.exe
- '\notepad.exe'
filter_null:
Image: null
condition: selection or ( selection_special and not 1 of filter_* )
falsepositives:
- Unknown
level: high
related
high
Renamed Plink Execution
Detects the execution of a renamed version of the Plink binary
status test
author Nasreddine Bencherchali (Nextron Systems)
id 1c12727d-02bf-45ff-a9f3-d49806a3cf43
license Sigma · DRL-1.1
view Sigma YAML
title: Renamed Plink Execution
id: 1c12727d-02bf-45ff-a9f3-d49806a3cf43
status: test
description: Detects the execution of a renamed version of the Plink binary
references:
- https://thedfirreport.com/2022/06/06/will-the-real-msiexec-please-stand-up-exploit-leads-to-data-exfiltration/
- https://the.earth.li/~sgtatham/putty/0.58/htmldoc/Chapter7.html
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-06-06
modified: 2023-02-03
tags:
- attack.stealth
- attack.t1036
logsource:
category: process_creation
product: windows
detection:
selection:
- OriginalFileName: 'Plink'
- CommandLine|contains|all:
- ' -l forward'
- ' -P '
- ' -R '
filter:
Image|endswith: '\plink.exe'
condition: selection and not filter
falsepositives:
- Unknown
level: high
related
high
Suspicious Process Masquerading As SvcHost.EXE
Detects a suspicious process that is masquerading as the legitimate "svchost.exe" by naming its binary "svchost.exe" and executing from an uncommon location.
Adversaries often disguise their malicious binaries by naming them after legitimate system processes like "svchost.exe" to evade detection.
status test
author Swachchhanda Shrawan Poudel
id be58d2e2-06c8-4f58-b666-b99f6dc3b6cd
license Sigma · DRL-1.1
view Sigma YAML
title: Suspicious Process Masquerading As SvcHost.EXE
id: be58d2e2-06c8-4f58-b666-b99f6dc3b6cd
related:
- id: 01d2e2a1-5f09-44f7-9fc1-24faa7479b6d
type: similar
- id: e4a6b256-3e47-40fc-89d2-7a477edd6915
type: similar
status: test
description: |
Detects a suspicious process that is masquerading as the legitimate "svchost.exe" by naming its binary "svchost.exe" and executing from an uncommon location.
Adversaries often disguise their malicious binaries by naming them after legitimate system processes like "svchost.exe" to evade detection.
references:
- https://tria.ge/240731-jh4crsycnb/behavioral2
- https://redcanary.com/blog/threat-detection/process-masquerading/
author: Swachchhanda Shrawan Poudel
date: 2024-08-07
tags:
- attack.stealth
- attack.t1036.005
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith: '\svchost.exe'
filter_main_img_location:
Image:
- 'C:\Windows\System32\svchost.exe'
- 'C:\Windows\SysWOW64\svchost.exe'
filter_main_ofn:
OriginalFileName: 'svchost.exe'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unlikely
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_svchost_masqueraded_execution/info.yml
related
high
Uncommon Svchost Command Line Parameter
Detects instances of svchost.exe running with an unusual or uncommon command line parameter by excluding known legitimate or common patterns.
This could point at a file masquerading as svchost, a process injection, or hollowing of a legitimate svchost instance.
status experimental
author Liran Ravich
id f17211f1-1f24-4d0c-829f-31e28dc93cdd
license Sigma · DRL-1.1
view Sigma YAML
title: Uncommon Svchost Command Line Parameter
id: f17211f1-1f24-4d0c-829f-31e28dc93cdd
status: experimental
description: |
Detects instances of svchost.exe running with an unusual or uncommon command line parameter by excluding known legitimate or common patterns.
This could point at a file masquerading as svchost, a process injection, or hollowing of a legitimate svchost instance.
references:
- https://cardinalops.com/blog/the-art-of-anomaly-hunting-patterns-detection/
- https://www.security.com/threat-intelligence/blackbyte-exbyte-ransomware
- https://cloud.google.com/blog/topics/threat-intelligence/apt41-initiates-global-intrusion-campaign-using-multiple-exploits/
- https://media.kasperskycontenthub.com/wp-content/uploads/sites/43/2018/03/08064518/Carbanak_APT_eng.pdf
author: Liran Ravich
date: 2025-11-14
modified: 2026-03-23
tags:
- attack.privilege-escalation
- attack.stealth
- attack.t1036.005
- attack.t1055
- attack.t1055.012
logsource:
category: process_creation
product: windows
detection:
selection:
# Example of command to simulate: "C:\Windows\System32\svchost.exe" calc.exe
Image|endswith: '\svchost.exe'
filter_main_flags:
CommandLine|re: '-k\s\w{1,64}(?:\s?(?:-p|-s))?'
filter_main_empty:
CommandLine: ''
filter_main_null:
CommandLine: null
filter_optional_defender:
ParentImage|endswith: '\MsMpEng.exe'
CommandLine|contains: 'svchost.exe'
filter_optional_mrt:
ParentImage|endswith: '\MRT.exe'
CommandLine: 'svchost.exe'
condition: selection and not 1 of filter_main_* and not 1 of filter_optional_*
falsepositives:
- Unlikely
level: high
related
high
Potential MsiExec Masquerading
Detects the execution of msiexec.exe from an uncommon directory
status test
author Florian Roth (Nextron Systems)
id e22a6eb2-f8a5-44b5-8b44-a2dbd47b1144
license Sigma · DRL-1.1
view Sigma YAML
title: Potential MsiExec Masquerading
id: e22a6eb2-f8a5-44b5-8b44-a2dbd47b1144
status: test
description: Detects the execution of msiexec.exe from an uncommon directory
references:
- https://twitter.com/200_okay_/status/1194765831911215104
author: Florian Roth (Nextron Systems)
date: 2019-11-14
modified: 2023-02-21
tags:
- attack.stealth
- attack.t1036.005
logsource:
category: process_creation
product: windows
detection:
selection:
- Image|endswith: '\msiexec.exe'
- OriginalFileName: '\msiexec.exe'
filter:
Image|startswith:
- 'C:\Windows\System32\'
- 'C:\Windows\SysWOW64\'
- 'C:\Windows\WinSxS\'
condition: selection and not filter
falsepositives:
- Unknown
level: high
related
high
Scheduled Task Creation Masquerading as System Processes
Detects the creation of scheduled tasks that involve system processes, which may indicate malicious actors masquerading as or abusing these processes to execute payloads or maintain persistence.
status experimental
author Swachchhanda Shrawan Poudel (Nextron Systems)
id 9f8573c9-22b4-40e3-89c1-72bc2b8d49ab
license Sigma · DRL-1.1
view Sigma YAML
title: Scheduled Task Creation Masquerading as System Processes
id: 9f8573c9-22b4-40e3-89c1-72bc2b8d49ab
status: experimental
description: Detects the creation of scheduled tasks that involve system processes, which may indicate malicious actors masquerading as or abusing these processes to execute payloads or maintain persistence.
references:
- https://tria.ge/241015-l98snsyeje/behavioral2
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-02-05
tags:
- attack.privilege-escalation
- attack.execution
- attack.persistence
- attack.stealth
- attack.t1053.005
- attack.t1036.004
- attack.t1036.005
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\schtasks.exe'
- OriginalFileName: 'schtasks.exe'
selection_cli:
CommandLine|contains|windash: ' /create '
CommandLine|contains:
- ' audiodg'
- ' conhost'
- ' dwm.exe'
- ' explorer'
- ' lsass'
- ' lsm'
- ' mmc'
- ' msiexec'
- ' regsvr32'
- ' rundll32'
- ' services'
- ' spoolsv'
- ' svchost'
- ' taskeng'
- ' taskhost'
- ' wininit'
- ' winlogon'
condition: all of selection_*
falsepositives:
- Legitimate system administration tasks scheduling trusted system processes.
level: high
related
high
Flash Player Update from Suspicious Location
Detects a flashplayer update from an unofficial location
status test
author Florian Roth (Nextron Systems)
id 4922a5dd-6743-4fc2-8e81-144374280997
license Sigma · DRL-1.1
view Sigma YAML
title: Flash Player Update from Suspicious Location
id: 4922a5dd-6743-4fc2-8e81-144374280997
status: test
description: Detects a flashplayer update from an unofficial location
references:
- https://gist.github.com/roycewilliams/a723aaf8a6ac3ba4f817847610935cfb
author: Florian Roth (Nextron Systems)
date: 2017-10-25
modified: 2022-08-08
tags:
- attack.initial-access
- attack.stealth
- attack.t1189
- attack.execution
- attack.t1204.002
- attack.t1036.005
logsource:
category: proxy
detection:
selection:
- c-uri|contains: '/flash_install.php'
- c-uri|endswith: '/install_flash_player.exe'
filter:
cs-host|endswith: '.adobe.com'
condition: selection and not filter
falsepositives:
- Unknown flash download locations
level: high
related
high
OpenCanary - TFTP Request
Detects instances where a TFTP service on an OpenCanary node has had a request.
status test
author Security Onion Solutions
id b4e6b016-a2ac-4759-ad85-8000b300d61e
license Sigma · DRL-1.1
view Sigma YAML
title: OpenCanary - TFTP Request
id: b4e6b016-a2ac-4759-ad85-8000b300d61e
status: test
description: Detects instances where a TFTP service on an OpenCanary node has had a request.
references:
- https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
author: Security Onion Solutions
date: 2024-03-08
tags:
- attack.exfiltration
- attack.t1041
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 10001
condition: selection
falsepositives:
- Unlikely
level: high
related
high
OpenCanary - NMAP NULL Scan
Detects instances where an OpenCanary node has been targeted by a NMAP NULL Scan
status experimental
author Marco Pedrinazzi (@pedrinazziM)
id 68b8547b-107f-43f3-97fb-900a7d63c190
license Sigma · DRL-1.1
view Sigma YAML
title: OpenCanary - NMAP NULL Scan
id: 68b8547b-107f-43f3-97fb-900a7d63c190
status: experimental
description: Detects instances where an OpenCanary node has been targeted by a NMAP NULL Scan
references:
- https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
author: Marco Pedrinazzi (@pedrinazziM)
date: 2026-01-06
tags:
- attack.discovery
- attack.t1046
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 5003
condition: selection
falsepositives:
- Unlikely
level: high
related
high
OpenCanary - NMAP OS Scan
Detects instances where an OpenCanary node has been targeted by a NMAP OS Scan
status experimental
author Marco Pedrinazzi (@pedrinazziM)
id e8a677fd-248c-4eab-94df-de2f6f645884
license Sigma · DRL-1.1
view Sigma YAML
title: OpenCanary - NMAP OS Scan
id: e8a677fd-248c-4eab-94df-de2f6f645884
status: experimental
description: Detects instances where an OpenCanary node has been targeted by a NMAP OS Scan
references:
- https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
author: Marco Pedrinazzi (@pedrinazziM)
date: 2026-01-06
tags:
- attack.discovery
- attack.t1046
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 5002
condition: selection
falsepositives:
- Unlikely
level: high
related
high
OpenCanary - NMAP FIN Scan
Detects instances where an OpenCanary node has been targeted by a NMAP FIN Scan
status experimental
author Marco Pedrinazzi (@pedrinazziM)
id eae8c0c8-e5da-450a-9d7d-66aa56cd26b6
license Sigma · DRL-1.1
view Sigma YAML
title: OpenCanary - NMAP FIN Scan
id: eae8c0c8-e5da-450a-9d7d-66aa56cd26b6
status: experimental
description: Detects instances where an OpenCanary node has been targeted by a NMAP FIN Scan
references:
- https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
author: Marco Pedrinazzi (@pedrinazziM)
date: 2026-01-06
tags:
- attack.discovery
- attack.t1046
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 5005
condition: selection
falsepositives:
- Unlikely
level: high
related
high
OpenCanary - NMAP XMAS Scan
Detects instances where an OpenCanary node has been targeted by a NMAP XMAS Scan
status experimental
author Marco Pedrinazzi (@pedrinazziM)
id d7553d7b-f485-479c-b192-cdac6edd83a4
license Sigma · DRL-1.1
view Sigma YAML
title: OpenCanary - NMAP XMAS Scan
id: d7553d7b-f485-479c-b192-cdac6edd83a4
status: experimental
description: Detects instances where an OpenCanary node has been targeted by a NMAP XMAS Scan
references:
- https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
author: Marco Pedrinazzi (@pedrinazziM)
date: 2026-01-06
tags:
- attack.discovery
- attack.t1046
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 5004
condition: selection
falsepositives:
- Unlikely
level: high
related
high
OpenCanary - Host Port Scan (SYN Scan)
Detects instances where an OpenCanary node has been targeted by a SYN port scan.
status experimental
author Marco Pedrinazzi (@pedrinazziM)
id 974be8d2-283e-4033-ab08-7505b84204d0
license Sigma · DRL-1.1
view Sigma YAML
title: OpenCanary - Host Port Scan (SYN Scan)
id: 974be8d2-283e-4033-ab08-7505b84204d0
status: experimental
description: Detects instances where an OpenCanary node has been targeted by a SYN port scan.
references:
- https://opencanary.readthedocs.io/en/latest/starting/configuration.html#services-configuration
- https://github.com/thinkst/opencanary/blob/a0896adfcaf0328cfd5829fe10d2878c7445138e/opencanary/logger.py#L52
author: Marco Pedrinazzi (@pedrinazziM)
date: 2026-01-06
tags:
- attack.discovery
- attack.t1046
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 5001
condition: selection
falsepositives:
- Unlikely
level: high
related
high
HackTool - WinPwn Execution - ScriptBlock
Detects scriptblock text keywords indicative of potential usge of the tool WinPwn. A tool for Windows and Active Directory reconnaissance and exploitation.
status test
author Swachchhanda Shrawan Poudel
id 851fd622-b675-4d26-b803-14bc7baa517a
license Sigma · DRL-1.1
view Sigma YAML
title: HackTool - WinPwn Execution - ScriptBlock
id: 851fd622-b675-4d26-b803-14bc7baa517a
related:
- id: d557dc06-62e8-4468-a8e8-7984124908ce
type: similar
status: test
description: |
Detects scriptblock text keywords indicative of potential usge of the tool WinPwn. A tool for Windows and Active Directory reconnaissance and exploitation.
author: Swachchhanda Shrawan Poudel
date: 2023-12-04
references:
- https://github.com/S3cur3Th1sSh1t/WinPwn
- https://www.publicnow.com/view/EB87DB49C654D9B63995FAD4C9DE3D3CC4F6C3ED?1671634841
- https://reconshell.com/winpwn-tool-for-internal-windows-pentesting-and-ad-security/
- https://github.com/redcanaryco/atomic-red-team/blob/4d6c4e8e23d465af7a2388620cfe3f8c76e16cf0/atomics/T1082/T1082.md
- https://grep.app/search?q=winpwn&filter[repo][0]=redcanaryco/atomic-red-team
tags:
- attack.credential-access
- attack.discovery
- attack.execution
- attack.privilege-escalation
- attack.t1046
- attack.t1082
- attack.t1106
- attack.t1518
- attack.t1548.002
- attack.t1552.001
- attack.t1555
- attack.t1555.003
logsource:
category: ps_script
product: windows
definition: 'Requirements: Script Block Logging must be enabled'
detection:
selection:
ScriptBlockText|contains:
- 'Offline_Winpwn'
- 'WinPwn '
- 'WinPwn.exe'
- 'WinPwn.ps1'
condition: selection
falsepositives:
- As the script block is a blob of text. False positive may occur with scripts that contain the keyword as a reference or simply use it for detection.
level: high
related
high
HackTool - WinPwn Execution
Detects commandline keywords indicative of potential usge of the tool WinPwn. A tool for Windows and Active Directory reconnaissance and exploitation.
status test
author Swachchhanda Shrawan Poudel
id d557dc06-62e8-4468-a8e8-7984124908ce
license Sigma · DRL-1.1
view Sigma YAML
title: HackTool - WinPwn Execution
id: d557dc06-62e8-4468-a8e8-7984124908ce
related:
- id: 851fd622-b675-4d26-b803-14bc7baa517a
type: similar
status: test
description: |
Detects commandline keywords indicative of potential usge of the tool WinPwn. A tool for Windows and Active Directory reconnaissance and exploitation.
author: Swachchhanda Shrawan Poudel
date: 2023-12-04
references:
- https://github.com/S3cur3Th1sSh1t/WinPwn
- https://www.publicnow.com/view/EB87DB49C654D9B63995FAD4C9DE3D3CC4F6C3ED?1671634841
- https://reconshell.com/winpwn-tool-for-internal-windows-pentesting-and-ad-security/
- https://github.com/redcanaryco/atomic-red-team/blob/4d6c4e8e23d465af7a2388620cfe3f8c76e16cf0/atomics/T1082/T1082.md
- https://grep.app/search?q=winpwn&filter[repo][0]=redcanaryco/atomic-red-team
tags:
- attack.credential-access
- attack.discovery
- attack.execution
- attack.privilege-escalation
- attack.t1046
- attack.t1082
- attack.t1106
- attack.t1518
- attack.t1548.002
- attack.t1552.001
- attack.t1555
- attack.t1555.003
logsource:
category: process_creation
product: windows
detection:
selection:
CommandLine|contains:
- 'Offline_Winpwn'
- 'WinPwn '
- 'WinPwn.exe'
- 'WinPwn.ps1'
condition: selection
falsepositives:
- Unknown
level: high
related
high
HackTool - winPEAS Execution
WinPEAS is a script that search for possible paths to escalate privileges on Windows hosts. The checks are explained on book.hacktricks.xyz
status test
author Georg Lauenstein (sure[secure])
id 98b53e78-ebaf-46f8-be06-421aafd176d9
license Sigma · DRL-1.1
view Sigma YAML
title: HackTool - winPEAS Execution
id: 98b53e78-ebaf-46f8-be06-421aafd176d9
status: test
description: WinPEAS is a script that search for possible paths to escalate privileges on Windows hosts. The checks are explained on book.hacktricks.xyz
references:
- https://github.com/carlospolop/PEASS-ng
- https://book.hacktricks.xyz/windows-hardening/windows-local-privilege-escalation
author: Georg Lauenstein (sure[secure])
date: 2022-09-19
modified: 2023-03-23
tags:
- attack.privilege-escalation
- attack.discovery
- attack.t1082
- attack.t1087
- attack.t1046
logsource:
category: process_creation
product: windows
detection:
selection_img:
- OriginalFileName: 'winPEAS.exe'
- Image|endswith:
- '\winPEASany_ofs.exe'
- '\winPEASany.exe'
- '\winPEASx64_ofs.exe'
- '\winPEASx64.exe'
- '\winPEASx86_ofs.exe'
- '\winPEASx86.exe'
selection_cli_option:
CommandLine|contains:
- ' applicationsinfo' # Search installed applications information
- ' browserinfo' # Search browser information
- ' eventsinfo' # Display interesting events information
- ' fileanalysis' # Search specific files that can contains credentials and for regexes inside files
- ' filesinfo' # Search generic files that can contains credentials
- ' processinfo' # Search processes information
- ' servicesinfo' # Search services information
- ' windowscreds' # Search windows credentials
selection_cli_dl:
CommandLine|contains: 'https://github.com/carlospolop/PEASS-ng/releases/latest/download/'
selection_cli_specific:
- ParentCommandLine|endswith: ' -linpeas'
- CommandLine|endswith: ' -linpeas'
condition: 1 of selection_*
falsepositives:
- Unlikely
level: high
related
high
Powershell DNSExfiltration
DNSExfiltrator allows for transferring (exfiltrate) a file over a DNS request covert channel
status test
author frack113
id d59d7842-9a21-4bc6-ba98-64bfe0091355
license Sigma · DRL-1.1
view Sigma YAML
title: Powershell DNSExfiltration
id: d59d7842-9a21-4bc6-ba98-64bfe0091355
status: test
description: DNSExfiltrator allows for transferring (exfiltrate) a file over a DNS request covert channel
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1048/T1048.md#atomic-test-3---dnsexfiltration-doh
- https://github.com/Arno0x/DNSExfiltrator
author: frack113
date: 2022-01-07
tags:
- attack.exfiltration
- attack.t1048
logsource:
product: windows
category: ps_script
definition: 'Requirements: Script Block Logging must be enabled'
detection:
selection_cmdlet:
- ScriptBlockText|contains: 'Invoke-DNSExfiltrator'
- ScriptBlockText|contains|all:
- ' -i '
- ' -d '
- ' -p '
- ' -doh '
- ' -t '
condition: selection_cmdlet
falsepositives:
- Legitimate script
level: high
related
high
Suspicious Redirection to Local Admin Share
Detects a suspicious output redirection to the local admins share, this technique is often found in malicious scripts or hacktool stagers
status test
author Florian Roth (Nextron Systems)
id ab9e3b40-0c85-4ba1-aede-455d226fd124
license Sigma · DRL-1.1
view Sigma YAML
title: Suspicious Redirection to Local Admin Share
id: ab9e3b40-0c85-4ba1-aede-455d226fd124
status: test
description: Detects a suspicious output redirection to the local admins share, this technique is often found in malicious scripts or hacktool stagers
references:
- https://www.microsoft.com/security/blog/2022/01/15/destructive-malware-targeting-ukrainian-organizations/
- http://blog.talosintelligence.com/2022/09/lazarus-three-rats.html
author: Florian Roth (Nextron Systems)
date: 2022-01-16
modified: 2023-12-28
tags:
- attack.exfiltration
- attack.t1048
logsource:
category: process_creation
product: windows
detection:
selection_redirect:
CommandLine|contains: '>'
selection_share:
CommandLine|contains:
- '\\\\127.0.0.1\\admin$\\'
- '\\\\localhost\\admin$\\'
condition: all of selection_*
falsepositives:
- Unknown
level: high
related
high
PUA - Restic Backup Tool Execution
Detects the execution of the Restic backup tool, which can be used for data exfiltration.
Threat actors may leverage Restic to back up and exfiltrate sensitive data to remote storage locations, including cloud services.
If not legitimately used in the enterprise environment, its presence may indicate malicious activity.
status experimental
author Nounou Mbeiri, Swachchhanda Shrawan Poudel (Nextron Systems)
id 6ddff2e8-ea1a-45d0-8938-93dfc1d67ae7
license Sigma · DRL-1.1
view Sigma YAML
title: PUA - Restic Backup Tool Execution
id: 6ddff2e8-ea1a-45d0-8938-93dfc1d67ae7
status: experimental
description: |
Detects the execution of the Restic backup tool, which can be used for data exfiltration.
Threat actors may leverage Restic to back up and exfiltrate sensitive data to remote storage locations, including cloud services.
If not legitimately used in the enterprise environment, its presence may indicate malicious activity.
references:
- https://thedfirreport.com/2024/09/30/nitrogen-campaign-drops-sliver-and-ends-with-blackcat-ransomware/#exfiltration
- https://restic.net/
- https://restic.readthedocs.io/en/stable/030_preparing_a_new_repo.html
author: Nounou Mbeiri, Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-10-17
tags:
- attack.exfiltration
- attack.t1048
- attack.t1567.002
logsource:
product: windows
category: process_creation
detection:
selection_specific:
- CommandLine|contains|all:
- '--password-file'
- 'init'
- ' -r '
- CommandLine|contains|all:
- '--use-fs-snapshot'
- 'backup'
- ' -r '
selection_restic:
CommandLine|contains:
- 'sftp:'
- 'rest:http'
- 's3:s3.'
- 's3.http'
- 'azure:'
- ' gs:'
- 'rclone:'
- 'swift:'
- ' b2:'
CommandLine|contains|all:
- ' init '
- ' -r '
condition: 1 of selection_*
falsepositives:
- Legitimate use of Restic for backup purposes within the organization.
level: high
related
high
Remote Schedule Task Lateral Movement via ATSvc
Detects remote RPC calls to create or execute a scheduled task via ATSvc
status test
author Sagie Dulce, Dekel Paz
id 0fcd1c79-4eeb-4746-aba9-1b458f7a79cb
license Sigma · DRL-1.1
view Sigma YAML
title: Remote Schedule Task Lateral Movement via ATSvc
id: 0fcd1c79-4eeb-4746-aba9-1b458f7a79cb
status: test
description: Detects remote RPC calls to create or execute a scheduled task via ATSvc
references:
- https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-tsch/d1058a28-7e02-4948-8b8d-4a347fa64931
- https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/ddd4608fe8684fcf2fcf9b48c5f0b3c28097f8a3/documents/MS-TSCH.md
- https://github.com/zeronetworks/rpcfirewall
- https://zeronetworks.com/blog/stopping-lateral-movement-via-the-rpc-firewall/
author: Sagie Dulce, Dekel Paz
date: 2022-01-01
tags:
- attack.privilege-escalation
- attack.lateral-movement
- attack.execution
- attack.persistence
- attack.t1053
- attack.t1053.002
logsource:
product: rpc_firewall
category: application
definition: 'Requirements: install and apply the RPC Firewall to all processes with "audit:true action:block uuid:1ff70682-0a51-30e8-076d-740be8cee98b"'
detection:
selection:
EventLog: RPCFW
EventID: 3
InterfaceUuid: 1ff70682-0a51-30e8-076d-740be8cee98b
OpNum:
- 0
- 1
condition: selection
falsepositives:
- Unknown
level: high
related
high
Remote Schedule Task Lateral Movement via SASec
Detects remote RPC calls to create or execute a scheduled task via SASec
status test
author Sagie Dulce, Dekel Paz
id aff229ab-f8cd-447b-b215-084d11e79eb0
license Sigma · DRL-1.1
view Sigma YAML
title: Remote Schedule Task Lateral Movement via SASec
id: aff229ab-f8cd-447b-b215-084d11e79eb0
status: test
description: Detects remote RPC calls to create or execute a scheduled task via SASec
references:
- https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-tsch/d1058a28-7e02-4948-8b8d-4a347fa64931
- https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/ddd4608fe8684fcf2fcf9b48c5f0b3c28097f8a3/documents/MS-TSCH.md
- https://github.com/zeronetworks/rpcfirewall
- https://zeronetworks.com/blog/stopping-lateral-movement-via-the-rpc-firewall/
author: Sagie Dulce, Dekel Paz
date: 2022-01-01
tags:
- attack.privilege-escalation
- attack.lateral-movement
- attack.execution
- attack.persistence
- attack.t1053
- attack.t1053.002
logsource:
product: rpc_firewall
category: application
definition: 'Requirements: install and apply the RPC Firewall to all processes with "audit:true action:block uuid:378e52b0-c0a9-11cf-822d-00aa0051e40f"'
detection:
selection:
EventLog: RPCFW
EventID: 3
InterfaceUuid: 378e52b0-c0a9-11cf-822d-00aa0051e40f
OpNum:
- 0
- 1
condition: selection
falsepositives:
- Unknown
level: high
related
high
Remote Schedule Task Lateral Movement via ITaskSchedulerService
Detects remote RPC calls to create or execute a scheduled task
status test
author Sagie Dulce, Dekel Paz
id ace3ff54-e7fd-46bd-8ea0-74b49a0aca1d
license Sigma · DRL-1.1
view Sigma YAML
title: Remote Schedule Task Lateral Movement via ITaskSchedulerService
id: ace3ff54-e7fd-46bd-8ea0-74b49a0aca1d
status: test
description: Detects remote RPC calls to create or execute a scheduled task
references:
- https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-tsch/d1058a28-7e02-4948-8b8d-4a347fa64931
- https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/ddd4608fe8684fcf2fcf9b48c5f0b3c28097f8a3/documents/MS-TSCH.md
- https://github.com/zeronetworks/rpcfirewall
- https://zeronetworks.com/blog/stopping-lateral-movement-via-the-rpc-firewall/
author: Sagie Dulce, Dekel Paz
date: 2022-01-01
tags:
- attack.privilege-escalation
- attack.persistence
- attack.execution
- attack.lateral-movement
- attack.t1053
- attack.t1053.002
logsource:
product: rpc_firewall
category: application
definition: 'Requirements: install and apply the RPC Firewall to all processes with "audit:true action:block uuid:86d35949-83c9-4044-b424-db363231fd0c"'
detection:
selection:
EventLog: RPCFW
EventID: 3
InterfaceUuid: 86d35949-83c9-4044-b424-db363231fd0c
OpNum:
- 1
- 3
- 4
- 10
- 11
- 12
- 13
- 14
- 15
condition: selection
falsepositives:
- Unknown
level: high
related
high
Suspicious Scheduled Task Write to System32 Tasks
Detects the creation of tasks from processes executed from suspicious locations
status test
author Florian Roth (Nextron Systems)
id 80e1f67a-4596-4351-98f5-a9c3efabac95
license Sigma · DRL-1.1
view Sigma YAML
title: Suspicious Scheduled Task Write to System32 Tasks
id: 80e1f67a-4596-4351-98f5-a9c3efabac95
status: test
description: Detects the creation of tasks from processes executed from suspicious locations
references:
- Internal Research
author: Florian Roth (Nextron Systems)
date: 2021-11-16
modified: 2022-01-12
tags:
- attack.privilege-escalation
- attack.persistence
- attack.execution
- attack.t1053
logsource:
product: windows
category: file_event
detection:
selection:
TargetFilename|contains: '\Windows\System32\Tasks'
Image|contains:
- '\AppData\'
- 'C:\PerfLogs'
- '\Windows\System32\config\systemprofile'
condition: selection
falsepositives:
- Unknown
level: high
related
high
HackTool - CrackMapExec Execution
This rule detect common flag combinations used by CrackMapExec in order to detect its use even if the binary has been replaced.
status test
author Florian Roth (Nextron Systems)
id 42a993dd-bb3e-48c8-b372-4d6684c4106c
license Sigma · DRL-1.1
view Sigma YAML
title: HackTool - CrackMapExec Execution
id: 42a993dd-bb3e-48c8-b372-4d6684c4106c
status: test
description: This rule detect common flag combinations used by CrackMapExec in order to detect its use even if the binary has been replaced.
references:
- https://mpgn.gitbook.io/crackmapexec/smb-protocol/authentication/checking-credentials-local
- https://www.mandiant.com/resources/telegram-malware-iranian-espionage
- https://www.infosecmatter.com/crackmapexec-module-library/?cmem=mssql-mimikatz
- https://www.infosecmatter.com/crackmapexec-module-library/?cmem=smb-pe_inject
author: Florian Roth (Nextron Systems)
date: 2022-02-25
modified: 2023-03-08
tags:
- attack.execution
- attack.persistence
- attack.privilege-escalation
- attack.credential-access
- attack.discovery
- attack.t1047
- attack.t1053
- attack.t1059.003
- attack.t1059.001
- attack.t1110
- attack.t1201
logsource:
category: process_creation
product: windows
detection:
selection_binary:
Image|endswith: '\crackmapexec.exe'
selection_special:
CommandLine|contains: ' -M pe_inject '
selection_execute:
CommandLine|contains|all:
- ' --local-auth'
- ' -u '
- ' -x '
selection_hash:
CommandLine|contains|all:
- ' --local-auth'
- ' -u '
- ' -p '
- " -H 'NTHASH'"
selection_module_mssql:
CommandLine|contains|all:
- ' mssql '
- ' -u '
- ' -p '
- ' -M '
- ' -d '
selection_module_smb1:
CommandLine|contains|all:
- ' smb '
- ' -u '
- ' -H '
- ' -M '
- ' -o '
selection_module_smb2:
CommandLine|contains|all:
- ' smb '
- ' -u '
- ' -p '
- ' --local-auth'
part_localauth_1:
CommandLine|contains|all:
- ' --local-auth'
- ' -u '
- ' -p '
part_localauth_2:
CommandLine|contains|all:
- ' 10.'
- ' 192.168.'
- '/24 '
condition: 1 of selection_* or all of part_localauth*
falsepositives:
- Unknown
level: high
related
high
HackTool - SharPersist Execution
Detects the execution of the hacktool SharPersist - used to deploy various different kinds of persistence mechanisms
status test
author Florian Roth (Nextron Systems)
id 26488ad0-f9fd-4536-876f-52fea846a2e4
license Sigma · DRL-1.1
view Sigma YAML
title: HackTool - SharPersist Execution
id: 26488ad0-f9fd-4536-876f-52fea846a2e4
status: test
description: Detects the execution of the hacktool SharPersist - used to deploy various different kinds of persistence mechanisms
references:
- https://www.mandiant.com/resources/blog/sharpersist-windows-persistence-toolkit
- https://github.com/mandiant/SharPersist
author: Florian Roth (Nextron Systems)
date: 2022-09-15
modified: 2023-02-04
tags:
- attack.privilege-escalation
- attack.execution
- attack.persistence
- attack.t1053
logsource:
category: process_creation
product: windows
detection:
selection_img:
- Image|endswith: '\SharPersist.exe'
- Product: 'SharPersist'
selection_cli_1:
CommandLine|contains:
- ' -t schtask -c '
- ' -t startupfolder -c '
selection_cli_2:
CommandLine|contains|all:
- ' -t reg -c '
- ' -m add'
selection_cli_3:
CommandLine|contains|all:
- ' -t service -c '
- ' -m add'
selection_cli_4:
CommandLine|contains|all:
- ' -t schtask -c '
- ' -m add'
condition: 1 of selection_*
falsepositives:
- Unknown
level: high