title: Bitsadmin to Uncommon IP Server Address
id: 8ccd35a2-1c7c-468b-b568-ac6cdf80eec3
status: test
description: Detects Bitsadmin connections to IP addresses instead of FQDN names
references:
    - https://isc.sans.edu/diary/Microsoft+BITS+Used+to+Download+Payloads/21027
author: Florian Roth (Nextron Systems)
date: 2022-06-10
modified: 2022-08-24
tags:
    - attack.command-and-control
    - attack.execution
    - attack.stealth
    - attack.t1071.001
    - attack.persistence
    - attack.t1197
    - attack.s0190
logsource:
    category: proxy
detection:
    selection:
        c-useragent|startswith: 'Microsoft BITS/'
        cs-host|endswith:
            - '1'
            - '2'
            - '3'
            - '4'
            - '5'
            - '6'
            - '7'
            - '8'
            - '9'
    condition: selection
falsepositives:
    - Unknown
level: high

title: Suspicious User Agent
id: 7195a772-4b3f-43a4-a210-6a003d65caa1
status: test
description: Detects suspicious malformed user agent strings in proxy logs
references:
    - https://github.com/fastly/waf_testbed/blob/8bfc406551f3045e418cbaad7596cff8da331dfc/templates/default/scanners-user-agents.data.erb
author: Florian Roth (Nextron Systems)
date: 2017-07-08
modified: 2022-10-31
tags:
    - attack.command-and-control
    - attack.t1071.001
logsource:
    category: proxy
detection:
    selection1:
        c-useragent|startswith:
            - 'user-agent'  # User-Agent: User-Agent:
            - 'Mozilla/3.0 '
            - 'Mozilla/2.0 '
            - 'Mozilla/1.0 '
            - 'Mozilla '  # missing slash
            - ' Mozilla/'  # leading space
            - 'Mozila/'  # single 'l'
            - 'Mozilla/4.0 (compatible; MSIE 6.0; MS Web Services Client Protocol'  # https://twitter.com/NtSetDefault/status/1303643299509567488
    selection2:
        c-useragent|contains:
            - ' (compatible;MSIE '  # typical typo - missing space
            - '.0;Windows NT '  # typical typo - missing space
            - 'loader'  # https://twitter.com/securityonion/status/1522614635152744453?s=20&t=gHyPTSq5A27EqKwrCd9ohg
    selection3:
        c-useragent:
            - '_'
            - 'CertUtil URL Agent'  # https://twitter.com/stvemillertime/status/985150675527974912
            - 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0)'  # CobaltStrike Beacon https://unit42.paloaltonetworks.com/tracking-oceanlotus-new-downloader-kerrdown/
            - 'Mozilla/5.0 (Windows NT 6.3; WOW64; rv:28.0) Gecko/20100101 Firefox/28.0'  # used by APT28 malware https://threatvector.cylance.com/en_us/home/inside-the-apt28-dll-backdoor-blitz.html
            - 'HTTPS'  # https://twitter.com/stvemillertime/status/1204437531632250880
            - 'Erbium-UA-4ce7c27cb4be9d32e333bf032c88235a'  # https://www.cyfirma.com/outofband/erbium-stealer-malware-report
            - 'x'  # Use by Racoon Stealer but could be something else
            - 'xxx'  # Use by Racoon Stealer but could be something else
    falsepositives:
        - c-useragent: 'Mozilla/3.0 * Acrobat *'  # Acrobat with linked content
        - cs-host|endswith: # Adobe product traffic, example: Mozilla/3.0 (compatible; Adobe Synchronizer 10.12.20000)
              - '.acrobat.com'
              - '.adobe.com'
              - '.adobe.io'
    condition: 1 of selection* and not falsepositives
falsepositives:
    - Unknown
level: high

title: HackTool - CobaltStrike Malleable Profile Patterns - Proxy
id: f3f21ce1-cdef-4bfc-8328-ed2e826f5fac
related:
    - id: 953b895e-5cc9-454b-b183-7f3db555452e
      type: obsolete
    - id: 41b42a36-f62c-4c34-bd40-8cb804a34ad8
      type: obsolete
    - id: 37325383-740a-403d-b1a2-b2b4ab7992e7
      type: obsolete
    - id: c9b33401-cc6a-4cf6-83bb-57ddcb2407fc
      type: obsolete
status: test
description: Detects cobalt strike malleable profiles patterns (URI, User-Agents, Methods).
references:
    - https://github.com/rsmudge/Malleable-C2-Profiles/blob/26323784672913923d20c5a638c6ca79459e8529/normal/amazon.profile
    - https://www.hybrid-analysis.com/sample/ee5eca8648e45e2fea9dac0d920ef1a1792d8690c41ee7f20343de1927cc88b9?environmentId=100
    - https://github.com/rsmudge/Malleable-C2-Profiles/blob/26323784672913923d20c5a638c6ca79459e8529/normal/ocsp.profile
    - https://github.com/yeyintminthuhtut/Malleable-C2-Profiles-Collection/
    - https://github.com/rsmudge/Malleable-C2-Profiles/blob/26323784672913923d20c5a638c6ca79459e8529/normal/onedrive_getonly.profile
author: Markus Neis, Florian Roth (Nextron Systems)
date: 2024-02-15
tags:
    - attack.command-and-control
    - attack.t1071.001
logsource:
    category: proxy
detection:
    selection_amazon_1:
        c-useragent: 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko'
        cs-method: 'GET'
        c-uri: '/s/ref=nb_sb_noss_1/167-3294888-0262949/field-keywords=books'
        cs-host: 'www.amazon.com'
        cs-cookie|endswith: '=csm-hit=s-24KU11BB82RZSYGJ3BDK|1419899012996'
    selection_amazon_2:
        c-useragent: 'Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko'
        cs-method: 'POST'
        c-uri: '/N4215/adj/amzn.us.sr.aps'
        cs-host: 'www.amazon.com'
    selection_generic_1:
        c-useragent:
            - 'Mozilla/4.0 (compatible; MSIE 6.0;Windows NT 5.1)'
            - 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E )'
            - 'Mozilla/5.0 (Windows; U; MSIE 7.0; Windows NT 5.2) Java/1.5.0_08'
    selection_generic_2:
        c-useragent|endswith: '; MANM; MANM)'
    selection_oscp:
        c-uri|contains: '/oscp/'
        cs-host: 'ocsp.verisign.com'
    selection_onedrive:
        cs-method: 'GET'
        c-uri|endswith: '\?manifest=wac'
        cs-host: 'onedrive.live.com'
    filter_main_onedrive:
        c-uri|startswith: 'http'
        c-uri|contains: '://onedrive.live.com/'
    condition: 1 of selection_* and not 1 of filter_main_*
falsepositives:
    - Unknown
level: high

title: Potential GobRAT File Discovery Via Grep
id: e34cfa0c-0a50-4210-9cb3-5632d08eb041
status: test
description: Detects the use of grep to discover specific files created by the GobRAT malware
references:
    - https://blogs.jpcert.or.jp/en/2023/05/gobrat.html
    - https://www.virustotal.com/gui/file/60bcd645450e4c846238cf0e7226dc40c84c96eba99f6b2cffcd0ab4a391c8b3/detection
    - https://www.virustotal.com/gui/file/3e44c807a25a56f4068b5b8186eee5002eed6f26d665a8b791c472ad154585d1/detection
author: Joseliyo Sanchez, @Joseliyo_Jstnk
date: 2023-06-02
tags:
    - attack.discovery
    - attack.t1082
logsource:
    category: process_creation
    product: linux
detection:
    selection:
        Image|endswith: '/grep'
        CommandLine|contains:
            - 'apached'
            - 'frpc'
            - 'sshd.sh'
            - 'zone.arm'
    condition: selection
falsepositives:
    - Unknown
level: high

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

title: Suspicious Kernel Dump Using Dtrace
id: 7124aebe-4cd7-4ccb-8df0-6d6b93c96795
status: test
description: Detects suspicious way to dump the kernel on Windows systems using dtrace.exe, which is available on Windows systems since Windows 10 19H1
references:
    - https://twitter.com/0gtweet/status/1474899714290208777?s=12
    - https://learn.microsoft.com/en-us/windows-hardware/drivers/devtest/dtrace
author: Florian Roth (Nextron Systems)
date: 2021-12-28
tags:
    - attack.discovery
    - attack.t1082
logsource:
    product: windows
    category: process_creation
detection:
    selection_plain:
        Image|endswith: '\dtrace.exe'
        CommandLine|contains: 'lkd(0)'
    selection_obfuscated:
        CommandLine|contains|all:
            - 'syscall:::return'
            - 'lkd('
    condition: 1 of selection*
falsepositives:
    - Unknown
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_dtrace_kernel_dump/info.yml

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

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

title: Network Reconnaissance Activity
id: e6313acd-208c-44fc-a0ff-db85d572e90e
status: test
description: Detects a set of suspicious network related commands often used in recon stages
references:
    - https://thedfirreport.com/2022/02/07/qbot-likes-to-move-it-move-it/
author: Florian Roth (Nextron Systems)
date: 2022-02-07
tags:
    - attack.discovery
    - attack.t1087
    - attack.t1082
    - car.2016-03-001
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains|all:
            - 'nslookup'
            - '_ldap._tcp.dc._msdcs.'
    condition: selection
falsepositives:
    - False positives depend on scripts and administrative tools used in the monitored environment
level: high

title: Shell Execution GCC  - Linux
id: 9b5de532-a757-4d70-946c-1f3e44f48b4d
status: test
description: |
    Detects the use of the "gcc" utility to execute a shell. Such behavior may be associated with privilege escalation, unauthorized command execution, or to break out from restricted environments.
references:
    - https://gtfobins.github.io/gtfobins/gcc/#shell
    - https://gtfobins.github.io/gtfobins/c89/#shell
    - https://gtfobins.github.io/gtfobins/c99/#shell
    - https://www.elastic.co/guide/en/security/current/linux-restricted-shell-breakout-via-linux-binary-s.html
author: Li Ling, Andy Parkidomo, Robert Rakowski, Blake Hartstein (Bloomberg L.P.)
date: 2024-09-02
tags:
    - attack.discovery
    - attack.t1083
logsource:
    category: process_creation
    product: linux
detection:
    selection_img:
        Image|endswith:
            - '/c89'
            - '/c99'
            - '/gcc'
        CommandLine|contains: '-wrapper'
    selection_cli:
        CommandLine|contains:
            - '/bin/bash,-s'
            - '/bin/dash,-s'
            - '/bin/fish,-s'
            - '/bin/sh,-s'
            - '/bin/zsh,-s'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high

title: Shell Execution via Find - Linux
id: 6adfbf8f-52be-4444-9bac-81b539624146
status: test
description: |
    Detects the use of the find command to execute a shell. Such behavior may be associated with privilege escalation, unauthorized command execution, or exploitation attempt.
references:
    - https://gtfobins.github.io/gtfobins/find/#shell
    - https://www.elastic.co/guide/en/security/current/linux-restricted-shell-breakout-via-linux-binary-s.html
author: Li Ling, Andy Parkidomo, Robert Rakowski, Blake Hartstein (Bloomberg L.P.)
date: 2024-09-02
tags:
    - attack.discovery
    - attack.t1083
logsource:
    category: process_creation
    product: linux
detection:
    selection_img:
        Image|endswith: '/find'
        CommandLine|contains|all:
            - ' . '
            - '-exec'
    selection_cli:
        CommandLine|contains:
            - '/bin/bash'
            - '/bin/dash'
            - '/bin/fish'
            - '/bin/sh'
            - '/bin/zsh'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high

title: Shell Execution via Flock - Linux
id: 4b09c71e-4269-4111-9cdd-107d8867f0cc
status: test
description: |
    Detects the use of the "flock" command to execute a shell. Such behavior may be associated with privilege escalation, unauthorized command execution, or to break out from restricted environments.
references:
    - https://gtfobins.github.io/gtfobins/flock/#shell
    - https://www.elastic.co/guide/en/security/current/linux-restricted-shell-breakout-via-linux-binary-s.html
author: Li Ling, Andy Parkidomo, Robert Rakowski, Blake Hartstein (Bloomberg L.P.)
date: 2024-09-02
tags:
    - attack.discovery
    - attack.t1083
logsource:
    category: process_creation
    product: linux
detection:
    selection_img:
        Image|endswith: '/flock'
        CommandLine|contains: ' -u '
    selection_cli:
        CommandLine|contains:
            - '/bin/bash'
            - '/bin/dash'
            - '/bin/fish'
            - '/bin/sh'
            - '/bin/zsh'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high

title: Shell Execution via Nice - Linux
id: 093d68c7-762a-42f4-9f46-95e79142571a
status: test
description: |
    Detects the use of the "nice" utility to execute a shell. Such behavior may be associated with privilege escalation, unauthorized command execution, or to break out from restricted environments.
references:
    - https://gtfobins.github.io/gtfobins/nice/#shell
    - https://www.elastic.co/guide/en/security/current/linux-restricted-shell-breakout-via-linux-binary-s.html
author: Li Ling, Andy Parkidomo, Robert Rakowski, Blake Hartstein (Bloomberg L.P.)
date: 2024-09-02
tags:
    - attack.discovery
    - attack.t1083
logsource:
    category: process_creation
    product: linux
detection:
    selection:
        Image|endswith: '/nice'
        CommandLine|endswith:
            - '/bin/bash'
            - '/bin/dash'
            - '/bin/fish'
            - '/bin/sh'
            - '/bin/zsh'
    condition: selection
falsepositives:
    - Unknown
level: high

title: Vim GTFOBin Abuse - Linux
id: 7ab8f73a-fcff-428b-84aa-6a5ff7877dea
status: test
description: |
    Detects the use of "vim" and it's siblings commands to execute a shell or proxy commands.
    Such behavior may be associated with privilege escalation, unauthorized command execution, or to break out from restricted environments.
references:
    - https://gtfobins.github.io/gtfobins/vim/
    - https://gtfobins.github.io/gtfobins/rvim/
    - https://gtfobins.github.io/gtfobins/vimdiff/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-12-28
modified: 2024-09-02
tags:
    - attack.discovery
    - attack.t1083
logsource:
    category: process_creation
    product: linux
detection:
    selection_img:
        Image|endswith:
            - '/rvim'
            - '/vim'
            - '/vimdiff'
        CommandLine|contains:
            - ' --cmd'
            - ' -c '
    selection_cli:
        CommandLine|contains:
            - ':!/'
            - ':lua '
            - ':py '
            - '/bin/bash'
            - '/bin/dash'
            - '/bin/fish'
            - '/bin/sh'
            - '/bin/zsh'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high

title: PUA - Seatbelt Execution
id: 38646daa-e78f-4ace-9de0-55547b2d30da
status: test
description: Detects the execution of the PUA/Recon tool Seatbelt via PE information of command line parameters
references:
    - https://github.com/GhostPack/Seatbelt
    - https://www.bluetangle.dev/2022/08/fastening-seatbelt-on-threat-hunting.html
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-10-18
modified: 2023-02-04
tags:
    - attack.discovery
    - attack.t1526
    - attack.t1087
    - attack.t1083
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\Seatbelt.exe'
        - OriginalFileName: 'Seatbelt.exe'
        - Description: 'Seatbelt'
        - CommandLine|contains:
              # This just a list of the commands that will produce the least amount of FP in "theory"
              # Comment out/in as needed in your environment
              # To get the full list of commands see reference section
              - ' DpapiMasterKeys'
              - ' InterestingProcesses'
              - ' InterestingFiles'
              - ' CertificateThumbprints'
              - ' ChromiumBookmarks'
              - ' ChromiumHistory'
              - ' ChromiumPresence'
              - ' CloudCredentials'
              - ' CredEnum'
              - ' CredGuard'
              - ' FirefoxHistory'
              - ' ProcessCreationEvents'
              # - ' RDPSessions'
              # - ' PowerShellHistory'
    selection_group_list:
        CommandLine|contains:
            - ' -group=misc'
            - ' -group=remote'
            - ' -group=chromium'
            - ' -group=slack'
            - ' -group=system'
            - ' -group=user'
            - ' -group=all'
    selection_group_output:
        CommandLine|contains: ' -outputfile='
    condition: selection_img or all of selection_group_*
falsepositives:
    - Unlikely
level: high

title: SharpHound Recon Account Discovery
id: 65f77b1e-8e79-45bf-bb67-5988a8ce45a5
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-wkst/55118c55-2122-4ef9-8664-0c1ff9e168f3
    - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/ddd4608fe8684fcf2fcf9b48c5f0b3c28097f8a3/documents/MS-WKST.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.t1087
    - attack.discovery
logsource:
    product: rpc_firewall
    category: application
    definition: 'Requirements: install and apply the RPC Firewall to all processes with "audit:true action:block uuid:6bffd098-a112-3610-9833-46c3f87e345a opnum:2'
detection:
    selection:
        EventLog: RPCFW
        EventID: 3
        InterfaceUuid: 6bffd098-a112-3610-9833-46c3f87e345a
        OpNum: 2
    condition: selection
falsepositives:
    - Unknown
level: high

title: HackTool - SOAPHound Execution
id: e92a4287-e072-4a40-9739-370c106bb750
status: test
description: |
    Detects the execution of SOAPHound, a .NET tool for collecting Active Directory data, using specific command-line arguments that may indicate an attempt to extract sensitive AD information.
references:
    - https://github.com/FalconForceTeam/SOAPHound
    - https://medium.com/falconforce/soaphound-tool-to-collect-active-directory-data-via-adws-165aca78288c
author: '@kostastsale'
date: 2024-01-26
tags:
    - attack.discovery
    - attack.t1087
logsource:
    product: windows
    category: process_creation
detection:
    selection_1:
        CommandLine|contains:
            - ' --buildcache '
            - ' --bhdump '
            - ' --certdump '
            - ' --dnsdump '
    selection_2:
        CommandLine|contains:
            - ' -c '
            - ' --cachefilename '
            - ' -o '
            - ' --outputdirectory'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high

title: OpenCanary - HTTPPROXY Login Attempt
id: 5498fc09-adc6-4804-b9d9-5cca1f0b8760
status: test
description: |
    Detects instances where an HTTPPROXY service on an OpenCanary node has had an attempt to proxy another page.
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.initial-access
    - attack.command-and-control
    - attack.t1090
logsource:
    category: application
    product: opencanary
detection:
    selection:
        logtype: 7001
    condition: selection
falsepositives:
    - Unlikely
level: high

title: Malicious IP Address Sign-In Failure Rate
id: a3f55ebd-0c01-4ed6-adc0-8fb76d8cd3cd
status: test
description: Indicates sign-in from a malicious IP address based on high failure rates.
references:
    - https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#malicious-ip-address
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-07
tags:
    - attack.t1090
    - attack.command-and-control
logsource:
    product: azure
    service: riskdetection
detection:
    selection:
        riskEventType: 'maliciousIPAddress'
    condition: selection
falsepositives:
    - We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
level: high

title: Malicious IP Address Sign-In Suspicious
id: 36440e1c-5c22-467a-889b-593e66498472
status: test
description: Indicates sign-in from a malicious IP address known to be malicious at time of sign-in.
references:
    - https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#malicious-ip-address
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-07
tags:
    - attack.t1090
    - attack.command-and-control
logsource:
    product: azure
    service: riskdetection
detection:
    selection:
        riskEventType: 'suspiciousIPAddress'
    condition: selection
falsepositives:
    - We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
level: high

title: Sign-In From Malware Infected IP
id: 821b4dc3-1295-41e7-b157-39ab212dd6bd
status: test
description: Indicates sign-ins from IP addresses infected with malware that is known to actively communicate with a bot server.
references:
    - https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#malware-linked-ip-address-deprecated
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-03
tags:
    - attack.t1090
    - attack.command-and-control
logsource:
    product: azure
    service: riskdetection
detection:
    selection:
        riskEventType: 'malwareInfectedIPAddress'
    condition: selection
falsepositives:
    - Using an IP address that is shared by many users
level: high

title: Communication To LocaltoNet Tunneling Service Initiated - Linux
id: c4568f5d-131f-4e78-83d4-45b2da0ec4f1
status: test
description: |
    Detects an executable initiating a network connection to "LocaltoNet" tunneling sub-domains.
    LocaltoNet is a reverse proxy that enables localhost services to be exposed to the Internet.
    Attackers have been seen to use this service for command-and-control activities to bypass MFA and perimeter controls.
references:
    - https://localtonet.com/documents/supported-tunnels
    - https://cloud.google.com/blog/topics/threat-intelligence/unc3944-targets-saas-applications
author: Andreas Braathen (mnemonic.io)
date: 2024-06-17
tags:
    - attack.command-and-control
    - attack.t1572
    - attack.t1090
    - attack.t1102
logsource:
    category: network_connection
    product: linux
detection:
    selection:
        DestinationHostname|endswith:
            - '.localto.net'
            - '.localtonet.com'
        Initiated: 'true'
    condition: selection
falsepositives:
    - Legitimate use of the LocaltoNet service.
level: high

title: Communication To Ngrok Tunneling Service - Linux
id: 19bf6fdb-7721-4f3d-867f-53467f6a5db6
status: test
description: Detects an executable accessing an ngrok tunneling endpoint, which could be a sign of forbidden exfiltration of data exfiltration by malicious actors
references:
    - https://twitter.com/hakluke/status/1587733971814977537/photo/1
    - https://ngrok.com/docs/secure-tunnels/tunnels/ssh-reverse-tunnel-agent
author: Florian Roth (Nextron Systems)
date: 2022-11-03
tags:
    - attack.exfiltration
    - attack.command-and-control
    - attack.t1567
    - attack.t1568.002
    - attack.t1572
    - attack.t1090
    - attack.t1102
    - attack.s0508
logsource:
    product: linux
    category: network_connection
detection:
    selection:
        DestinationHostname|contains:
            - 'tunnel.us.ngrok.com'
            - 'tunnel.eu.ngrok.com'
            - 'tunnel.ap.ngrok.com'
            - 'tunnel.au.ngrok.com'
            - 'tunnel.sa.ngrok.com'
            - 'tunnel.jp.ngrok.com'
            - 'tunnel.in.ngrok.com'
    condition: selection
falsepositives:
    - Legitimate use of ngrok
level: high

title: Communication To LocaltoNet Tunneling Service Initiated
id: 3ab65069-d82a-4d44-a759-466661a082d1
status: test
description: |
    Detects an executable initiating a network connection to "LocaltoNet" tunneling sub-domains.
    LocaltoNet is a reverse proxy that enables localhost services to be exposed to the Internet.
    Attackers have been seen to use this service for command-and-control activities to bypass MFA and perimeter controls.
references:
    - https://localtonet.com/documents/supported-tunnels
    - https://cloud.google.com/blog/topics/threat-intelligence/unc3944-targets-saas-applications
author: Andreas Braathen (mnemonic.io)
date: 2024-06-17
tags:
    - attack.command-and-control
    - attack.t1572
    - attack.t1090
    - attack.t1102
logsource:
    category: network_connection
    product: windows
detection:
    selection:
        DestinationHostname|endswith:
            - '.localto.net'
            - '.localtonet.com'
        Initiated: 'true'
    condition: selection
falsepositives:
    - Legitimate use of the LocaltoNet service.
level: high

title: Communication To Ngrok Tunneling Service Initiated
id: 1d08ac94-400d-4469-a82f-daee9a908849
related:
    - id: 18249279-932f-45e2-b37a-8925f2597670
      type: similar
status: test
description: |
    Detects an executable initiating a network connection to "ngrok" tunneling domains.
    Attackers were seen using this "ngrok" in order to store their second stage payloads and malware.
    While communication with such domains can be legitimate, often times is a sign of either data exfiltration by malicious actors or additional download.
references:
    - https://twitter.com/hakluke/status/1587733971814977537/photo/1
    - https://ngrok.com/docs/secure-tunnels/tunnels/ssh-reverse-tunnel-agent
author: Florian Roth (Nextron Systems)
date: 2022-11-03
modified: 2024-02-02
tags:
    - attack.exfiltration
    - attack.command-and-control
    - attack.t1567
    - attack.t1568.002
    - attack.t1572
    - attack.t1090
    - attack.t1102
    - attack.s0508
logsource:
    category: network_connection
    product: windows
detection:
    selection:
        DestinationHostname|contains:
            - 'tunnel.us.ngrok.com'
            - 'tunnel.eu.ngrok.com'
            - 'tunnel.ap.ngrok.com'
            - 'tunnel.au.ngrok.com'
            - 'tunnel.sa.ngrok.com'
            - 'tunnel.jp.ngrok.com'
            - 'tunnel.in.ngrok.com'
    condition: selection
falsepositives:
    - Legitimate use of the ngrok service.
level: high

title: RDP Port Forwarding Rule Added Via Netsh.EXE
id: 782d6f3e-4c5d-4b8c-92a3-1d05fed72e63
status: test
description: Detects the execution of netsh to configure a port forwarding of port 3389 (RDP) rule
references:
    - https://www.fireeye.com/blog/threat-research/2019/01/bypassing-network-restrictions-through-rdp-tunneling.html
author: Florian Roth (Nextron Systems), oscd.community
date: 2019-01-29
modified: 2023-02-13
tags:
    - attack.lateral-movement
    - attack.command-and-control
    - attack.t1090
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\netsh.exe'
        - OriginalFileName: 'netsh.exe'
    selection_cli:
        CommandLine|contains|all:
            - ' i'
            - ' p'
            - '=3389'
            - ' c'
    condition: all of selection_*
falsepositives:
    - Legitimate administration activity
level: high

title: PUA - NPS Tunneling Tool Execution
id: 68d37776-61db-42f5-bf54-27e87072d17e
status: test
description: Detects the use of NPS, a port forwarding and intranet penetration proxy server
references:
    - https://github.com/ehang-io/nps
author: Florian Roth (Nextron Systems)
date: 2022-10-08
modified: 2024-11-23
tags:
    - attack.command-and-control
    - attack.t1090
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        Image|endswith: '\npc.exe'
    selection_cli_1:
        CommandLine|contains|all:
            - ' -server='
            - ' -vkey='
            - ' -password='
    selection_cli_2:
        CommandLine|contains: ' -config=npc'
    selection_hashes:
        # v0.26.10
        Hashes|contains:
            - "MD5=AE8ACF66BFE3A44148964048B826D005"
            - "SHA1=CEA49E9B9B67F3A13AD0BE1C2655293EA3C18181"
            - "SHA256=5A456283392FFCEEEACA3D3426C306EB470304637520D72FED1CC1FEBBBD6856"
    condition: 1 of selection_*
falsepositives:
    - Legitimate use
level: high

title: HackTool - Htran/NATBypass Execution
id: f5e3b62f-e577-4e59-931e-0a15b2b94e1e
status: test
description: Detects executable names or flags used by Htran or Htran-like tools (e.g. NATBypass)
references:
    - https://github.com/HiwinCN/HTran
    - https://github.com/cw1997/NATBypass
author: Florian Roth (Nextron Systems)
date: 2022-12-27
modified: 2023-02-04
tags:
    - attack.command-and-control
    - attack.t1090
    - attack.s0040
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        Image|endswith:
            - '\htran.exe'
            - '\lcx.exe'
    selection_cli:
        CommandLine|contains:
            - '.exe -tran '
            - '.exe -slave '
    condition: 1 of selection_*
falsepositives:
    - Unknown
level: high

title: PUA - Fast Reverse Proxy (FRP) Execution
id: 32410e29-5f94-4568-b6a3-d91a8adad863
status: test
description: Detects the use of Fast Reverse Proxy. frp is a fast reverse proxy to help you expose a local server behind a NAT or firewall to the Internet.
references:
    - https://asec.ahnlab.com/en/38156/
    - https://github.com/fatedier/frp
author: frack113, Florian Roth
date: 2022-09-02
modified: 2024-11-23
tags:
    - attack.command-and-control
    - attack.t1090
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        Image|endswith:
            - '\frpc.exe'
            - '\frps.exe'
    selection_cli:
        CommandLine|contains: '\frpc.ini'
    selection_hashes:
        # v0.44.0
        Hashes|contains:
            - "MD5=7D9C233B8C9E3F0EA290D2B84593C842"
            - "SHA1=06DDC9280E1F1810677935A2477012960905942F"
            - "SHA256=57B0936B8D336D8E981C169466A15A5FD21A7D5A2C7DAF62D5E142EE860E387C"
    condition: 1 of selection_*
falsepositives:
    - Legitimate use
level: high

title: PUA- IOX Tunneling Tool Execution
id: d7654f02-e04b-4934-9838-65c46f187ebc
status: test
description: Detects the use of IOX - a tool for port forwarding and intranet proxy purposes
references:
    - https://github.com/EddieIvan01/iox
author: Florian Roth (Nextron Systems)
date: 2022-10-08
modified: 2024-11-23
tags:
    - attack.command-and-control
    - attack.t1090
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        Image|endswith: '\iox.exe'
    selection_commandline:
        CommandLine|contains:
            - '.exe fwd -l '
            - '.exe fwd -r '
            - '.exe proxy -l '
            - '.exe proxy -r '
    selection_hashes:
        # v0.4
        Hashes|contains:
            - "MD5=9DB2D314DD3F704A02051EF5EA210993"
            - "SHA1=039130337E28A6623ECF9A0A3DA7D92C5964D8DD"
            - "SHA256=C6CF82919B809967D9D90EA73772A8AA1C1EB3BC59252D977500F64F1A0D6731"
    condition: 1 of selection*
falsepositives:
    - Legitimate use
level: high

title: Ngrok Usage with Remote Desktop Service
id: 64d51a51-32a6-49f0-9f3d-17e34d640272
status: test
description: Detects cases in which ngrok, a reverse proxy tool, forwards events to the local RDP port, which could be a sign of malicious behaviour
references:
    - https://twitter.com/tekdefense/status/1519711183162556416?s=12&t=OTsHCBkQOTNs1k3USz65Zg
    - https://ngrok.com/
author: Florian Roth (Nextron Systems)
date: 2022-04-29
tags:
    - attack.command-and-control
    - attack.t1090
logsource:
    product: windows
    service: terminalservices-localsessionmanager
detection:
    selection:
        EventID: 21
        Address|contains: '16777216'
    condition: selection
falsepositives:
    - Unknown
level: high

title: HackTool - SharpChisel Execution
id: cf93e05e-d798-4d9e-b522-b0248dc61eaf
related:
    - id: 8b0e12da-d3c3-49db-bb4f-256703f380e5
      type: similar
status: test
description: Detects usage of the Sharp Chisel via the commandline arguments
references:
    - https://github.com/shantanu561993/SharpChisel
    - https://www.sentinelone.com/labs/wading-through-muddy-waters-recent-activity-of-an-iranian-state-sponsored-threat-actor/
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-09-05
modified: 2023-02-13
tags:
    - attack.command-and-control
    - attack.t1090.001
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        - Image|endswith: '\SharpChisel.exe'
        - Product: 'SharpChisel'
    # See rule 8b0e12da-d3c3-49db-bb4f-256703f380e5 for Chisel.exe coverage
    condition: selection
falsepositives:
    - Unlikely
level: high

title: Renamed Cloudflared.EXE Execution
id: e0c69ebd-b54f-4aed-8ae3-e3467843f3f0
status: test
description: Detects the execution of a renamed "cloudflared" binary.
references:
    - https://github.com/cloudflare/cloudflared/releases
    - https://developers.cloudflare.com/cloudflare-one/connections/connect-networks/do-more-with-tunnels/trycloudflare/
    - https://github.com/cloudflare/cloudflared
    - https://www.intrinsec.com/akira_ransomware/
    - https://www.guidepointsecurity.com/blog/tunnel-vision-cloudflared-abused-in-the-wild/
tags:
    - attack.command-and-control
    - attack.t1090.001
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-12-20
logsource:
    category: process_creation
    product: windows
detection:
    selection_cleanup:
        CommandLine|contains|all:
            - ' tunnel '
            - 'cleanup '
        CommandLine|contains:
            - '-config '
            - '-connector-id '
    selection_tunnel:
        CommandLine|contains|all:
            - ' tunnel '
            - ' run '
        CommandLine|contains:
            - '-config '
            - '-credentials-contents '
            - '-credentials-file '
            - '-token '
    selection_accountless:
        CommandLine|contains|all:
            - '-url'
            - 'tunnel'
    selection_hashes:
        Hashes|contains:
            - 'SHA256=2fb6c04c4f95fb8d158af94c137f90ac820716deaf88d8ebec956254e046cb29'
            - 'SHA256=b3d21940a10fdef5e415ad70331ce257c24fe3bcf7722262302e0421791f87e8'
            - 'SHA256=1fbd8362b2d2d2e6a5750ae3db69cd1815e6c1d31da48a98b796450971a8e039'
            - 'SHA256=0409c9b12f9d0eda86e461ed9bdabeefb00172b26322079681a0bdf48e68dc28'
            - 'SHA256=7cfb411d04bac42ef93d1f0c93c0a481e38c6f4612b97ae89d4702595988edc7'
            - 'SHA256=5b3c2d846ab162dc6bc595cce3a49de5731afde5d6060be7066d21b013a28373'
            - 'SHA256=ce95df7f69664c3df19b76028e115931919a71517b776da7b42d353e2ff4a670'
            - 'SHA256=1293525a19cfe3bc8296b62fbfe19f083632ed644a1c18c10b045a1d3030d81a'
            - 'SHA256=af2b9161cfcb654b16408cd6b098afe9d1fb61a037d18d7090a119d4c0c8e0f0'
            - 'SHA256=39ddceb56a15798826a5fc4892fa2b474c444bb4d7a8bf2fa95e41cab10fa7a1'
            - 'SHA256=ccd11f2328023a0e7929e845d5b6e7bc783fb4650d65faef3ae090239d4bbce2'
            - 'SHA256=b6e5c5d2567ae8c69cc012ebcae30e6c9b5359d64a58d17ba75ec89f8bce71ac'
            - 'SHA256=f813484ea441404f18caad96f28138e8aaf0cb256163c09c2ab8a3acab87f69f'
            - 'SHA256=fc4a0802ab9c7409b892ca00636bec61e2acfc911bccfdeb9978b8ab5a2f828d'
            - 'SHA256=083150724b49604c8765c1ba19541fa260b133be0acb0647fcd936d81f054499'
            - 'SHA256=44303d6572956f28a0f2e4b188934fb9874f2584f5c81fa431a463cfbf28083b'
            - 'SHA256=5d38c46032a58e28ae5f7d174d8761ec3d64d186677f3ec53af5f51afb9bfd2f'
            - 'SHA256=e1e70fa42059911bc6685fafef957f9a73fc66f214d0704a9b932683a5204032'
            - 'SHA256=c01356092a365b84f84f0e66870bd1a05ba3feb53cafd973fa5fea2534bee234'
            - 'SHA256=b3f9c06151e30ee43d39e788a79cd918a314f24e04fe87f3de8272a2057b624f'
            - 'SHA256=cd81b2792f0739f473c31c9cb7cf2313154bfa28b839975802b90e8790bb5058'
            - 'SHA256=9ec7e6c8e1bfd883663d8d9d62c9e4f9ae373b731407181e32491b27a7218a2c'
            - 'SHA256=c2cfd23fdc6c0e1b1ffa0e545cbe556f18d11b362b4a89ba0713f6ab01c4827f'
            - 'SHA256=53f8adbd76c0eb16f5e43cadde422474d8a06f9c8f959389c1930042ad8beaa5'
            - 'SHA256=648c8d2f8001c113d2986dd00b7bbd181593d462bef73522cee212c4f71f95b3'
            - 'SHA256=ae047e2095e46c3f9c518b2be67ec753f4f0aad23b261a361fcb6144dcdb63b4'
            - 'SHA256=3153d2baa462978dd22ab33d1c2274ecc88c200225d6a3327f98d5b752d08f5c'
            - 'SHA256=f49cde976e628012c9db73e1c8d76081944ecf2297cdafeb78bb13290da274c4'
            - 'SHA256=d2513e58bb03ccc83affde685c6ef987924c37ce6707d8e9857e2524b0d7e90f'
            - 'SHA256=bb67c7623ba92fe64ffd9816b8d5b3b1ea3013960a30bd4cf6e295b3eb5b1bad'
            - 'SHA256=b34b3c3a91e3165d1481f0b3ec23eab93a1cfba94345a6cbfe5b18ddbd48eac7'
            - 'SHA256=f7848034e010d55f15e474ca998f96391e320ff29b00cfcc4c5e536529703e75'
            - 'SHA256=b6fc9493778cbe3bfc062d73f5cc604bc0ff058bc5e5dc6aac87f3a4008b54b6'
            - 'SHA256=f5c5e962577e2293c4ad10603816dce7cc273585969615fbf4e4bfa9eaff1688'
            - 'SHA256=d14c52d9220b606f428a8fe9f7c108b0d6f14cf71e7384749e98e6a95962e68f'
            - 'SHA256=d3a0e1a79158f3985cd49607ebe0cdfcc49cb9af96b8f43aefd0cdfe2f22e663'
            - 'SHA256=2fbbfc8299537ff80cadf9d0e27c223fe0ccb9052bf9d8763ad717bbfa521c77'
            - 'SHA256=19074674c6fbdaa573b3081745e5e26144fdf7a086d14e0e220d1814f1f13078'
    filter_main_known_names:
        Image|endswith:
            - '\cloudflared.exe'
            - '\cloudflared-windows-386.exe'
            - '\cloudflared-windows-amd64.exe'
    condition: 1 of selection_* and not 1 of filter_main_*
falsepositives:
    - Unknown
level: high

title: PUA - Chisel Tunneling Tool Execution
id: 8b0e12da-d3c3-49db-bb4f-256703f380e5
related:
    - id: cf93e05e-d798-4d9e-b522-b0248dc61eaf
      type: similar
status: test
description: Detects usage of the Chisel tunneling tool via the commandline arguments
references:
    - https://github.com/jpillora/chisel/
    - https://arcticwolf.com/resources/blog/lorenz-ransomware-chiseling-in/
    - https://blog.sekoia.io/lucky-mouse-incident-response-to-detection-engineering/
author: Florian Roth (Nextron Systems)
date: 2022-09-13
modified: 2023-02-13
tags:
    - attack.command-and-control
    - attack.t1090.001
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        Image|endswith: '\chisel.exe'
    selection_param1:
        CommandLine|contains:
            - 'exe client '
            - 'exe server '
    selection_param2:
        CommandLine|contains:
            - '-socks5'
            - '-reverse'
            - ' r:'
            - ':127.0.0.1:'
            - '-tls-skip-verify '
            - ':socks'
    condition: selection_img or all of selection_param*
falsepositives:
    - Some false positives may occur with other tools with similar commandlines
level: high

title: RDP over Reverse SSH Tunnel WFP
id: 5bed80b6-b3e8-428e-a3ae-d3c757589e41
status: test
description: Detects svchost hosting RDP termsvcs communicating with the loopback address
references:
    - https://twitter.com/SBousseaden/status/1096148422984384514
    - https://github.com/sbousseaden/EVTX-ATTACK-SAMPLES/blob/44fbe85f72ee91582876b49678f9a26292a155fb/Command%20and%20Control/DE_RDP_Tunnel_5156.evtx
author: Samir Bousseaden
date: 2019-02-16
modified: 2022-09-02
tags:
    - attack.command-and-control
    - attack.lateral-movement
    - attack.t1090.001
    - attack.t1090.002
    - attack.t1021.001
    - car.2013-07-002
logsource:
    product: windows
    service: security
detection:
    selection:
        EventID: 5156
    sourceRDP:
        SourcePort: 3389
        DestAddress:
            - '127.*'
            - '::1'
    destinationRDP:
        DestPort: 3389
        SourceAddress:
            - '127.*'
            - '::1'
    filter_app_container:
        FilterOrigin: 'AppContainer Loopback'
    filter_thor:  # checking BlueKeep vulnerability
        Application|endswith:
            - '\thor.exe'
            - '\thor64.exe'
    condition: selection and ( sourceRDP or destinationRDP ) and not 1 of filter*
falsepositives:
    - Programs that connect locally to the RDP port
level: high

title: HackTool - RedMimicry Winnti Playbook Execution
id: 95022b85-ff2a-49fa-939a-d7b8f56eeb9b
status: test
description: Detects actions caused by the RedMimicry Winnti playbook a automated breach emulations utility
references:
    - https://redmimicry.com/posts/redmimicry-winnti/
author: Alexander Rausch
date: 2020-06-24
modified: 2023-03-01
tags:
    - attack.execution
    - attack.stealth
    - attack.t1106
    - attack.t1059.003
    - attack.t1218.011
logsource:
    product: windows
    category: process_creation
detection:
    selection:
        Image|endswith:
            - '\rundll32.exe'
            - '\cmd.exe'
        CommandLine|contains:
            - 'gthread-3.6.dll'
            - '\Windows\Temp\tmp.bat'
            - 'sigcmm-2.4.dll'
    condition: selection
falsepositives:
    - Unknown
level: high

title: Potential WinAPI Calls Via CommandLine
id: ba3f5c1b-6272-4119-9dbd-0bc8d21c2702
related:
    - id: 03d83090-8cba-44a0-b02f-0b756a050306
      type: derived
status: test
description: Detects the use of WinAPI Functions via the commandline. As seen used by threat actors via the tool winapiexec
references:
    - https://twitter.com/m417z/status/1566674631788007425
author: Nasreddine Bencherchali (Nextron Systems)
date: 2022-09-06
modified: 2025-03-06
tags:
    - attack.execution
    - attack.t1106
logsource:
    category: process_creation
    product: windows
detection:
    selection:
        CommandLine|contains:
            - 'AddSecurityPackage'
            - 'AdjustTokenPrivileges'
            - 'Advapi32'
            - 'CloseHandle'
            - 'CreateProcessWithToken'
            - 'CreatePseudoConsole'
            - 'CreateRemoteThread'
            - 'CreateThread'
            - 'CreateUserThread'
            - 'DangerousGetHandle'
            - 'DuplicateTokenEx'
            - 'EnumerateSecurityPackages'
            - 'FreeHGlobal'
            - 'FreeLibrary'
            - 'GetDelegateForFunctionPointer'
            - 'GetLogonSessionData'
            - 'GetModuleHandle'
            - 'GetProcAddress'
            - 'GetProcessHandle'
            - 'GetTokenInformation'
            - 'ImpersonateLoggedOnUser'
            - 'kernel32'
            - 'LoadLibrary'
            - 'memcpy'
            - 'MiniDumpWriteDump'
            # - 'msvcrt'
            - 'ntdll'
            - 'OpenDesktop'
            - 'OpenProcess'
            - 'OpenProcessToken'
            - 'OpenThreadToken'
            - 'OpenWindowStation'
            - 'PtrToString'
            - 'QueueUserApc'
            - 'ReadProcessMemory'
            - 'RevertToSelf'
            - 'RtlCreateUserThread'
            - 'secur32'
            - 'SetThreadToken'
            # - 'user32'
            - 'VirtualAlloc'
            - 'VirtualFree'
            - 'VirtualProtect'
            - 'WaitForSingleObject'
            - 'WriteInt32'
            - 'WriteProcessMemory'
            - 'ZeroFreeGlobalAllocUnicode'
    filter_optional_mpcmdrun:
        Image|endswith: '\MpCmdRun.exe'
        CommandLine|contains: 'GetLoadLibraryWAddress32'
    filter_optional_compatTelRunner:
        ParentImage|endswith: '\CompatTelRunner.exe'
        CommandLine|contains:
            - 'FreeHGlobal'
            - 'PtrToString'
            - 'kernel32'
            - 'CloseHandle'
    condition: selection and not 1 of filter_optional_*
falsepositives:
    - Some legitimate action or applications may use these functions. Investigate further to determine the legitimacy of the activity.
level: high

title: Suspicious Mshta.EXE Execution Patterns
id: e32f92d1-523e-49c3-9374-bdb13b46a3ba
status: test
description: Detects suspicious mshta process execution patterns
references:
    - https://en.wikipedia.org/wiki/HTML_Application
    - https://www.echotrail.io/insights/search/mshta.exe
    - https://app.any.run/tasks/34221348-072d-4b70-93f3-aa71f6ebecad/
author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
date: 2021-07-17
modified: 2023-02-21
tags:
    - attack.execution
    - attack.t1106
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\mshta.exe'
        - OriginalFileName: 'MSHTA.EXE'
    selection_susp:
        # Suspicious parents
        ParentImage|endswith:
            - '\cmd.exe'
            - '\cscript.exe'
            - '\powershell.exe'
            - '\pwsh.exe'
            - '\regsvr32.exe'
            - '\rundll32.exe'
            - '\wscript.exe'
        # Suspicious folders
        CommandLine|contains:
            - '\AppData\Local\'
            - 'C:\ProgramData\'
            - 'C:\Users\Public\'
            - 'C:\Windows\Temp\'
    filter_img:
        # Filter legit Locations
        - Image|startswith:
              - 'C:\Windows\System32\'
              - 'C:\Windows\SysWOW64\'
        # Suspicious extensions
        - CommandLine|contains:
              - '.htm'
              - '.hta'
        # Filter simple execution
        - CommandLine|endswith:
              - 'mshta.exe'
              - 'mshta'
    condition: all of selection_* or (selection_img and not filter_img)
falsepositives:
    - Unknown
level: high

title: HackTool - CobaltStrike BOF Injection Pattern
id: 09706624-b7f6-455d-9d02-adee024cee1d
status: test
description: Detects a typical pattern of a CobaltStrike BOF which inject into other processes
references:
    - https://github.com/boku7/injectAmsiBypass
    - https://github.com/boku7/spawn
author: Christian Burkard (Nextron Systems)
date: 2021-08-04
modified: 2023-11-28
tags:
    - attack.execution
    - attack.defense-impairment
    - attack.t1106
    - attack.t1685
logsource:
    category: process_access
    product: windows
detection:
    selection:
        CallTrace|re: '^C:\\Windows\\SYSTEM32\\ntdll\.dll\+[a-z0-9]{4,6}\|C:\\Windows\\System32\\KERNELBASE\.dll\+[a-z0-9]{4,6}\|UNKNOWN\([A-Z0-9]{16}\)$'
        GrantedAccess:
            - '0x1028'
            - '0x1fffff'
    condition: selection
falsepositives:
    - Unknown
level: high

title: HackTool - HandleKatz Duplicating LSASS Handle
id: b1bd3a59-c1fd-4860-9f40-4dd161a7d1f5
status: test
description: Detects HandleKatz opening LSASS to duplicate its handle to later dump the memory without opening any new handles
references:
    - https://github.com/codewhitesec/HandleKatz
author: Bhabesh Raj (rule), @thefLinkk
date: 2022-06-27
modified: 2023-11-28
tags:
    - attack.execution
    - attack.t1106
    - attack.t1003.001
    - attack.credential-access
logsource:
    category: process_access
    product: windows
detection:
    selection:
        TargetImage|endswith: '\lsass.exe' # Theoretically, can be any benign process holding handle to LSASS
        GrantedAccess: '0x1440' # Only PROCESS_DUP_HANDLE, PROCESS_QUERY_LIMITED_INFORMATION, PROCESS_QUERY_INFORMATION
        # Example: C:\Windows\SYSTEM32\ntdll.dll+9d234\|UNKNOWN(00000000001C119B)
        CallTrace|startswith: 'C:\Windows\System32\ntdll.dll+'
        CallTrace|contains: '|UNKNOWN('
        CallTrace|endswith: ')'
    condition: selection
falsepositives:
    - Unknown
level: high

title: OpenCanary - SIP Request
id: e30de276-68ec-435c-ab99-ef3befec6c61
status: test
description: Detects instances where an SIP service on an OpenCanary node has had a SIP 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.collection
    - attack.t1123
logsource:
    category: application
    product: opencanary
detection:
    selection:
        logtype: 15001
    condition: selection
falsepositives:
    - Unlikely
level: high

title: Suspicious Camera and Microphone Access
id: 62120148-6b7a-42be-8b91-271c04e281a3
status: test
description: Detects Processes accessing the camera and microphone from suspicious folder
references:
    - https://medium.com/@7a616368/can-you-track-processes-accessing-the-camera-and-microphone-7e6885b37072
author: Den Iuzvyk
date: 2020-06-07
modified: 2022-10-09
tags:
    - attack.collection
    - attack.t1125
    - attack.t1123
logsource:
    category: registry_event
    product: windows
detection:
    selection_1:
        TargetObject|contains|all:
            - '\Software\Microsoft\Windows\CurrentVersion\CapabilityAccessManager\ConsentStore\'
            - '\NonPackaged'
    selection_2:
        TargetObject|contains:
            - microphone
            - webcam
    selection_3:
        TargetObject|contains:
            - ':#Windows#Temp#'
            - ':#$Recycle.bin#'
            - ':#Temp#'
            - ':#Users#Public#'
            - ':#Users#Default#'
            - ':#Users#Desktop#'
    condition: all of selection_*
falsepositives:
    - Unlikely, there could be conferencing software running from a Temp folder accessing the devices
level: high

title: Potential Base64 Decoded From Images
id: 09a910bf-f71f-4737-9c40-88880ba5913d
status: test
description: |
    Detects the use of tail to extract bytes at an offset from an image and then decode the base64 value to create a new file with the decoded content. The detected execution is a bash one-liner.
references:
    - https://www.virustotal.com/gui/file/16bafdf741e7a13137c489f3c8db1334f171c7cb13b62617d691b0a64783cc48/behavior
    - https://www.virustotal.com/gui/file/483fafc64a2b84197e1ef6a3f51e443f84dc5742602e08b9e8ec6ad690b34ed0/behavior
author: Joseliyo Sanchez, @Joseliyo_Jstnk
date: 2023-12-20
tags:
    - attack.stealth
    - attack.t1140
logsource:
    product: macos
    category: process_creation
detection:
    # Example:  /bin/bash sh -c tail -c +21453 '/Volumes/Installer/Installer.app/Contents/Resources/workout-logo.jpeg' | base64 --decode > /tmp/54A0A2CD-FAD1-4D4D-AAF5-5266F6344ABE.zip
    # VT Query: 'behavior_processes:"tail" (behavior_processes:"jpeg" or behavior_processes:"jpg" or behavior_processes:"png" or behavior_processes:"gif") behavior_processes:"base64" behavior_processes:"--decode >" and tag:dmg'
    selection_image:
        Image|endswith: '/bash'
    selection_view:
        CommandLine|contains|all:
            - 'tail'
            - '-c'
    selection_b64:
        CommandLine|contains|all:
            - 'base64'
            - '-d' # Also covers "--decode"
            - '>'
    selection_files:
        CommandLine|contains:
            - '.avif'
            - '.gif'
            - '.jfif'
            - '.jpeg'
            - '.jpg'
            - '.pjp'
            - '.pjpeg'
            - '.png'
            - '.svg'
            - '.webp'
    condition: all of selection_*
falsepositives:
    - Unknown
level: high

title: Suspicious Inbox Manipulation Rules
id: ceb55fd0-726e-4656-bf4e-b585b7f7d572
status: test
description: Detects suspicious rules that delete or move messages or folders are set on a user's inbox.
references:
    - https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#suspicious-inbox-manipulation-rules
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-03
tags:
    - attack.stealth
    - attack.t1140
logsource:
    product: azure
    service: riskdetection
detection:
    selection:
        riskEventType: 'mcasSuspiciousInboxManipulationRules'
    condition: selection
falsepositives:
    - Actual mailbox rules that are moving items based on their workflow.
level: high

title: OpenCanary - HTTP GET Request
id: af6c3078-84cd-4c68-8842-08b76bd81b13
status: test
description: Detects instances where an HTTP service on an OpenCanary node has received a GET 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.initial-access
    - attack.t1190
logsource:
    category: application
    product: opencanary
detection:
    selection:
        logtype: 3000
    condition: selection
falsepositives:
    - Unlikely
level: high

title: OpenCanary - FTP Login Attempt
id: 6991bc2b-ae2e-447f-bc55-3a1ba04c14e5
status: test
description: Detects instances where an FTP service on an OpenCanary node has had a login attempt.
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.initial-access
    - attack.exfiltration
    - attack.lateral-movement
    - attack.t1190
    - attack.t1021
logsource:
    category: application
    product: opencanary
detection:
    selection:
        logtype: 2000
    condition: selection
falsepositives:
    - Unlikely
level: high

title: OpenCanary - HTTP POST Login Attempt
id: af1ac430-df6b-4b38-b976-0b52f07a0252
status: test
description: |
    Detects instances where an HTTP service on an OpenCanary node has had login attempt via Form POST.
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.initial-access
    - attack.t1190
logsource:
    category: application
    product: opencanary
detection:
    selection:
        logtype: 3001
    condition: selection
falsepositives:
    - Unlikely
level: high

title: Potential XXE Exploitation Attempt In JVM Based Application
id: c4e06896-e27c-4583-95ac-91ce2279345d
status: test
description: Detects XML parsing issues, if the application expects to work with XML make sure that the parser is initialized safely.
references:
    - https://rules.sonarsource.com/java/RSPEC-2755
    - https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing
    - https://www.wix.engineering/post/threat-and-vulnerability-hunting-with-application-server-error-logs
author: Moti Harmats
date: 2023-02-11
tags:
    - attack.initial-access
    - attack.t1190
logsource:
    category: application
    product: jvm
    definition: 'Requirements: application error logs must be collected (with LOG_LEVEL=ERROR and above)'
detection:
    keywords:
        - 'SAXParseException'
        - 'DOMException'
    condition: keywords
falsepositives:
    - If the application expects to work with XML there may be parsing issues that don't necessarily mean XXE.
level: high

title: Potential Local File Read Vulnerability In JVM Based Application
id: e032f5bc-4563-4096-ae3b-064bab588685
status: test
description: |
    Detects potential local file read vulnerability in JVM based apps.
    If the exceptions are caused due to user input and contain path traversal payloads then it's a red flag.
references:
    - https://www.wix.engineering/post/threat-and-vulnerability-hunting-with-application-server-error-logs
author: Moti Harmats
date: 2023-02-11
tags:
    - attack.initial-access
    - attack.t1190
logsource:
    category: application
    product: jvm
    definition: 'Requirements: application error logs must be collected (with LOG_LEVEL=ERROR and above)'
detection:
    keywords_local_file_read:
        '|all':
            - 'FileNotFoundException'
            - '/../../..'
    condition: keywords_local_file_read
falsepositives:
    - Application bugs
level: high

title: Potential JNDI Injection Exploitation In JVM Based Application
id: bb0e9cec-d4da-46f5-997f-22efc59f3dca
status: test
description: Detects potential JNDI Injection exploitation. Often coupled with Log4Shell exploitation.
references:
    - https://www.wix.engineering/post/threat-and-vulnerability-hunting-with-application-server-error-logs
    - https://secariolabs.com/research/analysing-and-reproducing-poc-for-log4j-2-15-0
author: Moti Harmats
date: 2023-02-11
tags:
    - attack.initial-access
    - attack.t1190
logsource:
    category: application
    product: jvm
    definition: 'Requirements: application error logs must be collected (with LOG_LEVEL=ERROR and above)'
detection:
    keywords:
        - 'com.sun.jndi.ldap.'
        - 'org.apache.logging.log4j.core.net.JndiManager'
    condition: keywords
falsepositives:
    - Application bugs
level: high