Sigma rules for CVE-2021-44228
200 rules · scoped to cve · back to CVE-2021-44228
Direct rules mention this entity in their title or description. Related rules cover the techniques this entity is known to use.
title: WCE wceaux.dll Access
id: 1de68c67-af5c-4097-9c85-fe5578e09e67
status: test
description: Detects wceaux.dll access while WCE pass-the-hash remote command execution on source host
references:
- https://www.jpcert.or.jp/english/pub/sr/ir_research.html
- https://jpcertcc.github.io/ToolAnalysisResultSheet
author: Thomas Patzke
date: 2017-06-14
modified: 2025-01-30
tags:
- attack.credential-access
- attack.t1003
- attack.s0005
logsource:
product: windows
service: security
detection:
selection:
EventID:
- 4656
- 4663
ObjectName|endswith: '\wceaux.dll'
condition: selection
falsepositives:
- Unknown
level: critical
title: Moriya Rootkit - System
id: 25b9c01c-350d-4b95-bed1-836d04a4f324
status: test
description: Detects the use of Moriya rootkit as described in the securelist's Operation TunnelSnake report
references:
- https://securelist.com/operation-tunnelsnake-and-moriya-rootkit/101831
author: Bhabesh Raj
date: 2021-05-06
modified: 2022-11-29
tags:
- attack.persistence
- attack.privilege-escalation
- attack.t1543.003
logsource:
product: windows
service: system
detection:
selection:
Provider_Name: 'Service Control Manager'
EventID: 7045
ServiceName: ZzNetSvc
condition: selection
falsepositives:
- Unknown
level: critical
title: CobaltStrike Service Installations - System
id: 5a105d34-05fc-401e-8553-272b45c1522d
status: test
description: Detects known malicious service installs that appear in cases in which a Cobalt Strike beacon elevates privileges or lateral movement
references:
- https://www.sans.org/webcasts/119395
- https://www.crowdstrike.com/blog/getting-the-bacon-from-cobalt-strike-beacon/
- https://thedfirreport.com/2021/08/29/cobalt-strike-a-defenders-guide/
author: Florian Roth (Nextron Systems), Wojciech Lesicki
date: 2021-05-26
modified: 2022-11-27
tags:
- attack.persistence
- attack.execution
- attack.privilege-escalation
- attack.lateral-movement
- attack.t1021.002
- attack.t1543.003
- attack.t1569.002
logsource:
product: windows
service: system
detection:
selection_id:
Provider_Name: 'Service Control Manager'
EventID: 7045
selection1:
ImagePath|contains|all:
- 'ADMIN$'
- '.exe'
selection2:
ImagePath|contains|all:
- '%COMSPEC%'
- 'start'
- 'powershell'
selection3:
ImagePath|contains: 'powershell -nop -w hidden -encodedcommand'
selection4:
ImagePath|base64offset|contains: "IEX (New-Object Net.Webclient).DownloadString('http://127.0.0.1:"
condition: selection_id and (selection1 or selection2 or selection3 or selection4)
falsepositives:
- Unknown
level: critical
title: Zerologon Exploitation Using Well-known Tools
id: 18f37338-b9bd-4117-a039-280c81f7a596
status: stable
description: This rule is designed to detect attempts to exploit Zerologon (CVE-2020-1472) vulnerability using mimikatz zerologon module or other exploits from machine with "kali" hostname.
references:
- https://www.secura.com/blog/zero-logon
- https://bi-zone.medium.com/hunting-for-zerologon-f65c61586382
author: 'Demyan Sokolin @_drd0c, Teymur Kheirkhabarov @HeirhabarovT, oscd.community'
date: 2020-10-13
modified: 2021-05-30
tags:
- attack.t1210
- attack.lateral-movement
logsource:
service: system
product: windows
detection:
selection:
EventID:
- 5805
- 5723
keywords:
- kali
- mimikatz
condition: selection and keywords
level: critical
title: Sticky Key Like Backdoor Usage - Registry
id: baca5663-583c-45f9-b5dc-ea96a22ce542
status: test
description: Detects the usage and installation of a backdoor that uses an option to register a malicious debugger for built-in tools that are accessible in the login screen
references:
- https://blogs.technet.microsoft.com/jonathantrull/2016/10/03/detecting-sticky-key-backdoors/
- https://bazaar.abuse.ch/sample/6f3aa9362d72e806490a8abce245331030d1ab5ac77e400dd475748236a6cc81/
author: Florian Roth (Nextron Systems), @twjackomo, Jonhnathan Ribeiro, oscd.community
date: 2018-03-15
modified: 2022-11-26
tags:
- attack.privilege-escalation
- attack.persistence
- attack.t1546.008
- car.2014-11-003
- car.2014-11-008
logsource:
category: registry_event
product: windows
detection:
selection_registry:
TargetObject|endswith:
- '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\sethc.exe\Debugger'
- '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\utilman.exe\Debugger'
- '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\osk.exe\Debugger'
- '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Magnify.exe\Debugger'
- '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Narrator.exe\Debugger'
- '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DisplaySwitch.exe\Debugger'
- '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\atbroker.exe\Debugger'
- '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\HelpPane.exe\Debugger'
condition: selection_registry
falsepositives:
- Unlikely
level: critical
title: Registry Entries For Azorult Malware
id: f7f9ab88-7557-4a69-b30e-0a8f91b3a0e7
status: test
description: Detects the presence of a registry key created during Azorult execution
references:
- https://www.trendmicro.com/vinfo/us/threat-encyclopedia/malware/trojan.win32.azoruit.a
author: Trent Liffick
date: 2020-05-08
modified: 2021-11-27
tags:
- attack.persistence
- attack.execution
- attack.defense-impairment
- attack.t1112
logsource:
product: windows
category: registry_event
detection:
selection:
EventID:
- 12
- 13
TargetObject|contains: 'SYSTEM\'
TargetObject|endswith: '\services\localNETService'
condition: selection
falsepositives:
- Unknown
level: critical
title: Windows Credential Editor Registry
id: a6b33c02-8305-488f-8585-03cb2a7763f2
status: test
description: Detects the use of Windows Credential Editor (WCE)
references:
- https://www.ampliasecurity.com/research/windows-credentials-editor/
author: Florian Roth (Nextron Systems)
date: 2019-12-31
modified: 2021-11-27
tags:
- attack.credential-access
- attack.t1003.001
- attack.s0005
logsource:
category: registry_event
product: windows
detection:
selection:
TargetObject|contains: Services\WCESERVICE\Start
condition: selection
falsepositives:
- Unknown
level: critical
title: Potential Credential Dumping Via LSASS SilentProcessExit Technique
id: 55e29995-75e7-451a-bef0-6225e2f13597
related:
- id: 36803969-5421-41ec-b92f-8500f79c23b0
type: similar
status: test
description: Detects changes to the Registry in which a monitor program gets registered to dump the memory of the lsass.exe process
references:
- https://www.deepinstinct.com/2021/02/16/lsass-memory-dumps-are-stealthier-than-ever-before-part-2/
- https://oddvar.moe/2018/04/10/persistence-using-globalflags-in-image-file-execution-options-hidden-from-autoruns-exe/
author: Florian Roth (Nextron Systems)
date: 2021-02-26
modified: 2022-12-19
tags:
- attack.credential-access
- attack.t1003.001
logsource:
category: registry_event
product: windows
detection:
selection:
TargetObject|contains: 'Microsoft\Windows NT\CurrentVersion\SilentProcessExit\lsass.exe'
condition: selection
falsepositives:
- Unlikely
level: critical
title: HackTool - BabyShark Agent Default URL Pattern
id: 304810ed-8853-437f-9e36-c4975c3dfd7e
status: test
description: Detects Baby Shark C2 Framework default communication patterns
references:
- https://nasbench.medium.com/understanding-detecting-c2-frameworks-babyshark-641be4595845
author: Florian Roth (Nextron Systems)
date: 2021-06-09
modified: 2024-02-15
tags:
- attack.command-and-control
- attack.t1071.001
logsource:
category: proxy
detection:
selection:
c-uri|contains: 'momyshark\?key='
condition: selection
falsepositives:
- Unlikely
level: critical
title: PwnDrp Access
id: 2b1ee7e4-89b6-4739-b7bb-b811b6607e5e
status: test
description: Detects downloads from PwnDrp web servers developed for red team testing and most likely also used for criminal activity
references:
- https://breakdev.org/pwndrop/
author: Florian Roth (Nextron Systems)
date: 2020-04-15
modified: 2021-11-27
tags:
- attack.command-and-control
- attack.t1071.001
- attack.t1102.001
- attack.t1102.003
logsource:
category: proxy
detection:
selection:
c-uri|contains: '/pwndrop/'
condition: selection
falsepositives:
- Unknown
level: critical
title: Okta New Admin Console Behaviours
id: a0b38b70-3cb5-484b-a4eb-c4d8e7bcc0a9
status: test
description: Detects when Okta identifies new activity in the Admin Console.
references:
- https://developer.okta.com/docs/reference/api/system-log/
- https://sec.okta.com/articles/2023/08/cross-tenant-impersonation-prevention-and-detection
author: kelnage
date: 2023-09-07
modified: 2026-04-27
tags:
- attack.privilege-escalation
- attack.persistence
- attack.initial-access
- attack.stealth
- attack.t1078.004
logsource:
product: okta
service: okta
detection:
selection_event:
eventType: 'policy.evaluate_sign_on'
target.displayName: 'Okta Admin Console'
selection_positive:
- debugContext.debugData.behaviors|contains: 'POSITIVE'
- debugContext.debugData.logOnlySecurityData|contains: 'POSITIVE'
condition: all of selection_*
falsepositives:
- When an admin begins using the Admin Console and one of Okta's heuristics incorrectly identifies the behavior as being unusual.
level: high
title: Okta Suspicious Activity Reported by End-user
id: 07e97cc6-aed1-43ae-9081-b3470d2367f1
status: test
description: Detects when an Okta end-user reports activity by their account as being potentially suspicious.
references:
- https://developer.okta.com/docs/reference/api/system-log/
- https://github.com/okta/workflows-templates/blob/1164f0eb71ce47c9ddc7d850e9ab87b5a2b42333/workflows/suspicious_activity_reported/readme.md
author: kelnage
date: 2023-09-07
modified: 2026-04-27
tags:
- attack.resource-development
- attack.t1586.003
logsource:
product: okta
service: okta
detection:
selection:
eventType: 'user.account.report_suspicious_activity_by_enduser'
condition: selection
falsepositives:
- If an end-user incorrectly identifies normal activity as suspicious.
level: high
title: Potential Okta Password in AlternateID Field
id: 91b76b84-8589-47aa-9605-c837583b82a9
status: test
description: |
Detects when a user has potentially entered their password into the
username field, which will cause the password to be retained in log files.
references:
- https://developer.okta.com/docs/reference/api/system-log/
- https://www.mitiga.io/blog/how-okta-passwords-can-be-compromised-uncovering-a-risk-to-user-data
- https://help.okta.com/en-us/Content/Topics/users-groups-profiles/usgp-create-character-restriction.htm
author: kelnage
date: 2023-04-03
modified: 2026-04-27
tags:
- attack.credential-access
- attack.t1552
logsource:
product: okta
service: okta
detection:
selection:
legacyEventType: 'core.user_auth.login_failed'
filter_main:
# Okta service account names start with 0oa
# Email addresses are the default format for Okta usernames, so attempt
# to exclude alternateIds that look like valid emails
# If your Okta configuration uses different character restrictions, you
# will need to update this regular expression to reflect that or disable the rule for your environment
# Possible false negatives are failed login attempts with a password that looks like a valid email address
actor.alternateId|re: '(^0oa.*|[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,10})'
condition: selection and not filter_main
falsepositives:
- Unlikely
level: high
title: Okta FastPass Phishing Detection
id: ee39a9f7-5a79-4b0a-9815-d36b3cf28d3e
status: test
description: Detects when Okta FastPass prevents a known phishing site.
references:
- https://sec.okta.com/fastpassphishingdetection
- https://developer.okta.com/docs/reference/api/system-log/
- https://developer.okta.com/docs/reference/api/event-types/
author: Austin Songer @austinsonger
date: 2023-05-07
modified: 2026-04-27
tags:
- attack.initial-access
- attack.t1566
logsource:
product: okta
service: okta
detection:
selection:
outcome.reason: 'FastPass declined phishing attempt'
outcome.result: FAILURE
eventType: user.authentication.auth_via_mfa
condition: selection
falsepositives:
- Unlikely
level: high
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
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
title: OpenCanary - MSSQL Login Attempt Via Windows Authentication
id: 6e78f90f-0043-4a01-ac41-f97681613a66
status: test
description: |
Detects instances where an MSSQL service on an OpenCanary node has had a login attempt using Windows Authentication.
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.credential-access
- attack.collection
- attack.t1003
- attack.t1213
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 9002
condition: selection
falsepositives:
- Unlikely
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 - 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
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: 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 - SSH Login Attempt
id: ff7139bc-fdb1-4437-92f2-6afefe8884cb
status: test
description: Detects instances where an SSH 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.privilege-escalation
- attack.initial-access
- attack.lateral-movement
- attack.persistence
- attack.stealth
- attack.t1133
- attack.t1021
- attack.t1078
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 4002
condition: selection
falsepositives:
- Unlikely
level: high
title: OpenCanary - RDP New Connection Attempt
id: 598290cf-5932-45cd-9123-be1e05ab4f2e
status: experimental
description: Detects instances where an RDP service on an OpenCanary node has had a connection 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: Marco Pedrinazzi (@pedrinazziM)
date: 2026-01-06
tags:
- attack.initial-access
- attack.lateral-movement
- attack.persistence
- attack.t1133
- attack.t1021.001
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 14001
condition: selection
falsepositives:
- Unlikely
level: high
title: OpenCanary - MySQL Login Attempt
id: e7d79a1b-25ed-4956-bd56-bd344fa8fd06
status: test
description: Detects instances where a MySQL 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.credential-access
- attack.collection
- attack.t1003
- attack.t1213
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 8001
condition: selection
falsepositives:
- Unlikely
level: high
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
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
title: OpenCanary - MSSQL Login Attempt Via SQLAuth
id: 3ec9a16d-0b4f-4967-9542-ebf38ceac7dd
status: test
description: |
Detects instances where an MSSQL service on an OpenCanary node has had a login attempt using SQLAuth.
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.credential-access
- attack.collection
- attack.t1003
- attack.t1213
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 9001
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: OpenCanary - REDIS Action Command Attempt
id: 547dfc53-ebf6-4afe-8d2e-793d9574975d
status: test
description: Detects instances where a REDIS service on an OpenCanary node has had an action command attempted.
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.credential-access
- attack.collection
- attack.t1003
- attack.t1213
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 17001
condition: selection
falsepositives:
- Unlikely
level: high
title: OpenCanary - VNC Connection Attempt
id: 9db5446c-b44a-4291-8b89-fcab5609c3b3
status: test
description: Detects instances where a VNC service on an OpenCanary node has had a connection 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.lateral-movement
- attack.t1021
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 12001
condition: selection
falsepositives:
- Unlikely
level: high
title: OpenCanary - Telnet Login Attempt
id: 512cff7a-683a-43ad-afe0-dd398e872f36
status: test
description: Detects instances where a Telnet 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.privilege-escalation
- attack.persistence
- attack.initial-access
- attack.command-and-control
- attack.stealth
- attack.t1133
- attack.t1078
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 6001
condition: selection
falsepositives:
- Unlikely
level: high
title: OpenCanary - SMB File Open Request
id: 22777c9e-873a-4b49-855f-6072ab861a52
status: test
description: Detects instances where an SMB service on an OpenCanary node has had a file open 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.lateral-movement
- attack.collection
- attack.t1021
- attack.t1005
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 5000
condition: selection
falsepositives:
- Unlikely
level: high
title: OpenCanary - GIT Clone Request
id: 4fe17521-aef3-4e6a-9d6b-4a7c8de155a8
status: test
description: Detects instances where a GIT service on an OpenCanary node has had Git Clone 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.t1213
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 16001
condition: selection
falsepositives:
- Unlikely
level: high
title: OpenCanary - SSH New Connection Attempt
id: cd55f721-5623-4663-bd9b-5229cab5237d
status: test
description: Detects instances where an SSH service on an OpenCanary node has had a connection 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.privilege-escalation
- attack.initial-access
- attack.lateral-movement
- attack.persistence
- attack.stealth
- attack.t1133
- attack.t1021
- attack.t1078
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 4000
condition: selection
falsepositives:
- Unlikely
level: high
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
title: OpenCanary - SNMP OID Request
id: e9856028-fd4e-46e6-b3d1-10f7ceb95078
status: test
description: Detects instances where an SNMP service on an OpenCanary node has had an OID 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.discovery
- attack.lateral-movement
- attack.t1016
- attack.t1021
logsource:
category: application
product: opencanary
detection:
selection:
logtype: 13001
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
title: Potential OGNL Injection Exploitation In JVM Based Application
id: 4d0af518-828e-4a04-a751-a7d03f3046ad
status: test
description: |
Detects potential OGNL Injection exploitation, which may lead to RCE.
OGNL is an expression language that is supported in many JVM based systems.
OGNL Injection is the reason for some high profile RCE's such as Apache Struts (CVE-2017-5638) and Confluence (CVE-2022-26134)
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
- cve.2017-5638
- cve.2022-26134
logsource:
category: application
product: jvm
definition: 'Requirements: application error logs must be collected (with LOG_LEVEL=ERROR and above)'
detection:
keywords:
- 'org.apache.commons.ognl.OgnlException'
- 'ExpressionSyntaxException'
condition: keywords
falsepositives:
- Application bugs
level: high
title: Process Execution Error In JVM Based Application
id: d65f37da-a26a-48f8-8159-3dde96680ad2
status: test
description: Detects process execution related exceptions in JVM based apps, often relates to RCE
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:
- 'Cannot run program'
- 'java.lang.ProcessImpl'
- 'java.lang.ProcessBuilder'
condition: keywords
falsepositives:
- Application bugs
level: high
title: Suspicious SQL Error Messages
id: 8a670c6d-7189-4b1c-8017-a417ca84a086
status: test
description: Detects SQL error messages that indicate probing for an injection attack
references:
- http://www.sqlinjection.net/errors
author: Bjoern Kimminich
date: 2017-11-27
modified: 2023-02-12
tags:
- attack.initial-access
- attack.t1190
logsource:
category: application
product: sql
definition: 'Requirements: application error logs must be collected (with LOG_LEVEL ERROR and above)'
detection:
keywords:
# Oracle
- quoted string not properly terminated
# MySQL
- You have an error in your SQL syntax
# SQL Server
- Unclosed quotation mark
# SQLite
- 'near "*": syntax error'
- SELECTs to the left and right of UNION do not have the same number of result columns
condition: keywords
falsepositives:
- A syntax error in MySQL also occurs in non-dynamic (safe) queries if there is an empty in() clause, that may often be the case.
level: high
title: Bitbucket Full Data Export Triggered
id: 195e1b9d-bfc2-4ffa-ab4e-35aef69815f8
status: test
description: Detects when full data export is attempted.
references:
- https://confluence.atlassian.com/bitbucketserver/audit-log-events-776640423.html
- https://confluence.atlassian.com/adminjiraserver0811/importing-and-exporting-data-1019391889.html
author: Muhammad Faisal (@faisalusuf)
date: 2024-02-25
tags:
- attack.collection
- attack.t1213.003
logsource:
product: bitbucket
service: audit
definition: 'Requirements: "Advance" log level is required to receive these audit events.'
detection:
selection:
auditType.category: 'Data pipeline'
auditType.action: 'Full data export triggered'
condition: selection
falsepositives:
- Legitimate user activity.
level: high
title: Potential Server Side Template Injection In Velocity
id: 16c86189-b556-4ee8-b4c7-7e350a195a4f
status: test
description: Detects exceptions in velocity template renderer, this most likely happens due to dynamic rendering of user input and may lead to RCE.
references:
- https://antgarsil.github.io/posts/velocity/
- 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: velocity
definition: 'Requirements: application error logs must be collected (with LOG_LEVEL=ERROR and above)'
detection:
keywords:
- 'ParseErrorException'
- 'VelocityException'
- 'TemplateInitException'
condition: keywords
falsepositives:
- Application bugs
- Missing .vm files
level: high
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
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
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
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
title: Remote Server Service Abuse for Lateral Movement
id: 10018e73-06ec-46ec-8107-9172f1e04ff2
status: test
description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR
references:
- https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-srvs/accf23b0-0f57-441c-9185-43041f1b0ee9
- https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/ddd4608fe8684fcf2fcf9b48c5f0b3c28097f8a3/documents/MS-SCMR.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.lateral-movement
- attack.execution
- attack.t1569.002
logsource:
product: rpc_firewall
category: application
definition: 'Requirements: install and apply the RPC Firewall to all processes with "audit:true action:block uuid:367abb81-9844-35f1-ad32-98f038001003'
detection:
selection:
EventLog: RPCFW
EventID: 3
InterfaceUuid: 367abb81-9844-35f1-ad32-98f038001003
condition: selection
falsepositives:
- Administrative tasks on remote services
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