Sigma rules for Storm-0558
500 rules · scoped to actor · back to Storm-0558
Direct rules mention this entity in their title or description. Related rules cover the techniques this entity is known to use.
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
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: 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: Potential RCE Exploitation Attempt In NodeJS
id: 97661d9d-2beb-4630-b423-68985291a8af
status: test
description: Detects process execution related errors in NodeJS. If the exceptions are caused due to user input then they may suggest an RCE vulnerability.
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: nodejs
definition: 'Requirements: application error logs must be collected (with LOG_LEVEL=ERROR and above)'
detection:
keywords:
- 'node:child_process'
condition: keywords
falsepositives:
- Puppeteer invocation exceptions often contain child_process related errors, that doesn't necessarily mean that the app is vulnerable.
level: high
title: Potential SpEL Injection In Spring Framework
id: e9edd087-89d8-48c9-b0b4-5b9bb10896b8
status: test
description: Detects potential SpEL Injection exploitation, which may lead to RCE.
references:
- https://owasp.org/www-community/vulnerabilities/Expression_Language_Injection
- 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: spring
definition: 'Requirements: application error logs must be collected (with LOG_LEVEL=ERROR and above)'
detection:
keywords:
- 'org.springframework.expression.ExpressionException'
condition: keywords
falsepositives:
- Application bugs
level: high
title: OMIGOD SCX RunAsProvider ExecuteShellCommand
id: 21541900-27a9-4454-9c4c-3f0a4240344a
status: test
description: |
Rule to detect the use of the SCX RunAsProvider Invoke_ExecuteShellCommand to execute any UNIX/Linux command using the /bin/sh shell.
SCXcore, started as the Microsoft Operations Manager UNIX/Linux Agent, is now used in a host of products including
Microsoft Operations Manager, Microsoft Azure, and Microsoft Operations Management Suite.
references:
- https://www.wiz.io/blog/omigod-critical-vulnerabilities-in-omi-azure
- https://github.com/Azure/Azure-Sentinel/pull/3059
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research), MSTIC
date: 2021-10-15
modified: 2022-10-05
tags:
- attack.privilege-escalation
- attack.initial-access
- attack.execution
- attack.t1068
- attack.t1190
- attack.t1203
logsource:
product: linux
category: process_creation
detection:
selection:
User: root
LogonId: 0
CurrentDirectory: '/var/opt/microsoft/scx/tmp'
CommandLine|contains: '/bin/sh'
condition: selection
falsepositives:
- Legitimate use of SCX RunAsProvider Invoke_ExecuteShellCommand.
level: high
title: OMIGOD SCX RunAsProvider ExecuteScript
id: 6eea1bf6-f8d2-488a-a742-e6ef6c1b67db
status: test
description: |
Rule to detect the use of the SCX RunAsProvider ExecuteScript to execute any UNIX/Linux script using the /bin/sh shell.
Script being executed gets created as a temp file in /tmp folder with a scx* prefix.
Then it is invoked from the following directory /etc/opt/microsoft/scx/conf/tmpdir/.
The file in that directory has the same prefix scx*. SCXcore, started as the Microsoft Operations Manager UNIX/Linux Agent, is now used in a host of products including
Microsoft Operations Manager, Microsoft Azure, and Microsoft Operations Management Suite.
references:
- https://www.wiz.io/blog/omigod-critical-vulnerabilities-in-omi-azure
- https://github.com/Azure/Azure-Sentinel/pull/3059
author: Roberto Rodriguez (Cyb3rWard0g), OTR (Open Threat Research), MSTIC
date: 2021-10-15
modified: 2022-10-05
tags:
- attack.privilege-escalation
- attack.initial-access
- attack.execution
- attack.t1068
- attack.t1190
- attack.t1203
logsource:
product: linux
category: process_creation
detection:
selection:
User: root
LogonId: 0
CurrentDirectory: '/var/opt/microsoft/scx/tmp'
CommandLine|contains: '/etc/opt/microsoft/scx/conf/tmpdir/scx'
condition: selection
falsepositives:
- Legitimate use of SCX RunAsProvider ExecuteScript.
level: high
title: Suspicious Named Error
id: c8e35e96-19ce-4f16-aeb6-fd5588dc5365
status: test
description: Detects suspicious DNS error messages that indicate a fatal or suspicious error that could be caused by exploiting attempts
references:
- https://github.com/ossec/ossec-hids/blob/1ecffb1b884607cb12e619f9ab3c04f530801083/etc/rules/named_rules.xml
author: Florian Roth (Nextron Systems)
date: 2018-02-20
modified: 2022-10-05
tags:
- attack.initial-access
- attack.t1190
logsource:
product: linux
service: syslog
detection:
keywords:
- ' dropping source port zero packet from '
- ' denied AXFR from '
- ' exiting (due to fatal error)'
condition: keywords
falsepositives:
- Unknown
level: high
title: DNS Query to External Service Interaction Domains
id: aff715fa-4dd5-497a-8db3-910bea555566
status: test
description: |
Detects suspicious DNS queries to external service interaction domains often used for out-of-band interactions after successful RCE
references:
- https://twitter.com/breakersall/status/1533493587828260866
- https://www.bitdefender.com/en-us/blog/businessinsights/bitdefender-advisory-critical-unauthenticated-rce-windows-server-update-services-cve-2025-59287
- https://github.com/SigmaHQ/sigma/pull/5724#issuecomment-3466382234
author: Florian Roth (Nextron Systems), Matt Kelly (list of domains)
date: 2022-06-07
modified: 2026-01-24
tags:
- attack.initial-access
- attack.t1190
- attack.reconnaissance
- attack.t1595.002
logsource:
category: dns
detection:
selection:
query|endswith:
- '.burpcollaborator.net' # Portswigger Burpsuite Collaborator
- '.canarytokens.com' # Thinkst Canary Canarytokens
- '.ceye.io'
- '.ddns.1443.eu.org' # dig.pm
- '.ddns.bypass.eu.org' # dig.pm
- '.ddns.xn--gg8h.eu.org' # dig.pm
- '.digimg.store' # dnslog.ink
- '.dns.su18.org' # javaweb.org
- '.dnshook.site' # webhook.site
- '.dnslog.cn'
- '.dnslog.ink' # dnslog.ink
- '.instances.httpworkbench.com' # httpworkbench.com
- '.interact.sh' # Project Discovery Interactsh
- '.log.dnslog.pp.ua' # dnslog.org
- '.log.dnslog.qzz.io' # dnslog.org
- '.log.dnslogs.dpdns.org' # dnslog.org
- '.log.javaweb.org' # javaweb.org
- '.log.nat.cloudns.ph' # dnslog.org
- '.oast.fun' # Project Discovery Interactsh
- '.oast.live' # Project Discovery Interactsh
- '.oast.me' # Project Discovery Interactsh
- '.oast.online' # Project Discovery Interactsh
- '.oast.pro' # Project Discovery Interactsh
- '.oast.site' # Project Discovery Interactsh
- '.oastify.com' # Portswigger Burpsuite Collaborator
- '.p8.lol' # javaweb.org
- '.requestbin.net'
filter_main_polling:
query|contains: 'polling.oastify.com'
condition: selection and not 1 of filter_main_*
falsepositives:
- Legitimate security scanning.
level: high
title: Suspicious MSExchangeMailboxReplication ASPX Write
id: 7280c9f3-a5af-45d0-916a-bc01cb4151c9
status: test
description: Detects suspicious activity in which the MSExchangeMailboxReplication process writes .asp and .apsx files to disk, which could be a sign of ProxyShell exploitation
references:
- https://redcanary.com/blog/blackbyte-ransomware/
author: Florian Roth (Nextron Systems)
date: 2022-02-25
tags:
- attack.initial-access
- attack.t1190
- attack.persistence
- attack.t1505.003
logsource:
product: windows
category: file_event
detection:
selection:
Image|endswith: '\MSExchangeMailboxReplication.exe'
TargetFilename|endswith:
- '.aspx'
- '.asp'
condition: selection
falsepositives:
- Unknown
level: high
title: Suspicious File Write to SharePoint Layouts Directory
id: 1f0489be-b496-4ddf-b3a9-5900f2044e9c
status: experimental
description: |
Detects suspicious file writes to SharePoint layouts directory which could indicate webshell activity or post-exploitation.
This behavior has been observed in the exploitation of SharePoint vulnerabilities such as CVE-2025-49704, CVE-2025-49706 or CVE-2025-53770.
references:
- https://unit42.paloaltonetworks.com/microsoft-sharepoint-cve-2025-49704-cve-2025-49706-cve-2025-53770/
- https://www.microsoft.com/en-us/security/blog/2025/07/22/disrupting-active-exploitation-of-on-premises-sharepoint-vulnerabilities/
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-07-24
tags:
- attack.initial-access
- attack.t1190
- attack.persistence
- attack.t1505.003
logsource:
product: windows
category: file_event
detection:
selection:
Image|endswith:
- '\cmd.exe'
- '\powershell_ise.exe'
- '\powershell.exe'
- '\pwsh.exe'
- '\w3wp.exe'
TargetFilename|startswith:
- 'C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\'
- 'C:\Program Files (x86)\Common Files\Microsoft Shared\Web Server Extensions\'
TargetFilename|contains:
- '\15\TEMPLATE\LAYOUTS\'
- '\16\TEMPLATE\LAYOUTS\'
TargetFilename|endswith:
- '.asax'
- '.ascx'
- '.ashx'
- '.asmx'
- '.asp'
- '.aspx'
- '.bat'
- '.cmd'
- '.cer'
- '.config'
- '.hta'
- '.js'
- '.jsp'
- '.jspx'
- '.php'
- '.ps1'
- '.vbs'
condition: selection
falsepositives:
- Unknown
level: high
title: Suspicious Child Process Of SQL Server
id: 869b9ca7-9ea2-4a5a-8325-e80e62f75445
related:
- id: 344482e4-a477-436c-aa70-7536d18a48c7
type: obsolete
status: test
description: Detects suspicious child processes of the SQLServer process. This could indicate potential RCE or SQL Injection.
references:
- Internal Research
author: FPT.EagleEye Team, wagga
date: 2020-12-11
modified: 2023-05-04
tags:
- attack.t1505.003
- attack.t1190
- attack.initial-access
- attack.persistence
- attack.privilege-escalation
logsource:
category: process_creation
product: windows
detection:
selection:
ParentImage|endswith: '\sqlservr.exe'
Image|endswith:
# You can add other uncommon or suspicious processes
- '\bash.exe'
- '\bitsadmin.exe'
- '\cmd.exe'
- '\netstat.exe'
- '\nltest.exe'
- '\ping.exe'
- '\powershell.exe'
- '\pwsh.exe'
- '\regsvr32.exe'
- '\rundll32.exe'
- '\sh.exe'
- '\systeminfo.exe'
- '\tasklist.exe'
- '\wsl.exe'
filter_optional_datev:
ParentImage|startswith: 'C:\Program Files\Microsoft SQL Server\'
ParentImage|endswith: 'DATEV_DBENGINE\MSSQL\Binn\sqlservr.exe'
Image: 'C:\Windows\System32\cmd.exe'
CommandLine|startswith: '"C:\Windows\system32\cmd.exe" '
condition: selection and not 1 of filter_optional_*
level: high
title: Suspicious Process By Web Server Process
id: 8202070f-edeb-4d31-a010-a26c72ac5600
status: test
description: |
Detects potentially suspicious processes being spawned by a web server process which could be the result of a successfully placed web shell or exploitation
references:
- https://media.defense.gov/2020/Jun/09/2002313081/-1/-1/0/CSI-DETECT-AND-PREVENT-WEB-SHELL-MALWARE-20200422.PDF
author: Thomas Patzke, Florian Roth (Nextron Systems), Zach Stanford @svch0st, Tim Shelton, Nasreddine Bencherchali (Nextron Systems)
date: 2019-01-16
modified: 2024-11-26
tags:
- attack.persistence
- attack.initial-access
- attack.t1505.003
- attack.t1190
logsource:
category: process_creation
product: windows
detection:
selection_webserver_image:
ParentImage|endswith:
- '\caddy.exe'
- '\httpd.exe'
- '\nginx.exe'
- '\php-cgi.exe'
- '\php.exe'
- '\tomcat.exe'
- '\UMWorkerProcess.exe' # https://www.fireeye.com/blog/threat-research/2021/03/detection-response-to-exploitation-of-microsoft-exchange-zero-day-vulnerabilities.html
- '\w3wp.exe'
- '\ws_TomcatService.exe'
selection_webserver_characteristics_tomcat1:
ParentImage|endswith:
- '\java.exe'
- '\javaw.exe'
ParentImage|contains:
- '-tomcat-'
- '\tomcat'
selection_webserver_characteristics_tomcat2:
ParentImage|endswith:
- '\java.exe'
- '\javaw.exe'
ParentCommandLine|contains:
- 'CATALINA_HOME'
- 'catalina.home'
- 'catalina.jar'
selection_anomaly_children:
Image|endswith:
- '\arp.exe'
- '\at.exe'
- '\bash.exe'
- '\bitsadmin.exe'
- '\certutil.exe'
- '\cmd.exe'
- '\cscript.exe'
- '\dsget.exe'
- '\hostname.exe'
- '\nbtstat.exe'
- '\net.exe'
- '\net1.exe'
- '\netdom.exe'
- '\netsh.exe'
- '\nltest.exe'
- '\ntdsutil.exe'
- '\powershell_ise.exe'
- '\powershell.exe'
- '\pwsh.exe'
- '\qprocess.exe'
- '\query.exe'
- '\qwinsta.exe'
- '\reg.exe'
- '\rundll32.exe'
- '\sc.exe'
- '\sh.exe'
- '\wmic.exe'
- '\wscript.exe'
- '\wusa.exe'
filter_main_fp_1:
ParentImage|endswith: '\java.exe'
CommandLine|endswith: 'Windows\system32\cmd.exe /c C:\ManageEngine\ADManager "Plus\ES\bin\elasticsearch.bat -Enode.name=RMP-NODE1 -pelasticsearch-pid.txt'
filter_main_fp_2:
ParentImage|endswith: '\java.exe'
CommandLine|contains|all:
- 'sc query'
- 'ADManager Plus'
condition: 1 of selection_webserver_* and selection_anomaly_children and not 1 of filter_main_*
falsepositives:
- Particular web applications may spawn a shell process legitimately
level: high
title: Suspicious Processes Spawned by WinRM
id: 5cc2cda8-f261-4d88-a2de-e9e193c86716
status: test
description: Detects suspicious processes including shells spawnd from WinRM host process
author: Andreas Hunkeler (@Karneades), Markus Neis
references:
- Internal Research
date: 2021-05-20
modified: 2022-07-14
tags:
- attack.t1190
- attack.initial-access
- attack.persistence
- attack.privilege-escalation
logsource:
category: process_creation
product: windows
detection:
selection:
ParentImage|endswith: '\wsmprovhost.exe'
Image|endswith:
- '\cmd.exe'
- '\sh.exe'
- '\bash.exe'
- '\powershell.exe'
- '\pwsh.exe'
- '\wsl.exe'
- '\schtasks.exe'
- '\certutil.exe'
- '\whoami.exe'
- '\bitsadmin.exe'
condition: selection
falsepositives:
- Legitimate WinRM usage
level: high
title: Terminal Service Process Spawn
id: 1012f107-b8f1-4271-af30-5aed2de89b39
status: test
description: Detects a process spawned by the terminal service server process (this could be an indicator for an exploitation of CVE-2019-0708)
references:
- https://securingtomorrow.mcafee.com/other-blogs/mcafee-labs/rdp-stands-for-really-do-patch-understanding-the-wormable-rdp-vulnerability-cve-2019-0708/
author: Florian Roth (Nextron Systems)
date: 2019-05-22
modified: 2023-01-25
tags:
- attack.initial-access
- attack.t1190
- attack.lateral-movement
- attack.t1210
- car.2013-07-002
logsource:
product: windows
category: process_creation
detection:
selection:
ParentCommandLine|contains|all:
- '\svchost.exe'
- 'termsvcs'
filter_img:
Image|endswith:
- '\rdpclip.exe'
- ':\Windows\System32\csrss.exe'
- ':\Windows\System32\wininit.exe'
- ':\Windows\System32\winlogon.exe'
filter_null:
Image: null
condition: selection and not 1 of filter_*
falsepositives:
- Unknown
level: high
title: Remote Access Tool - ScreenConnect Server Web Shell Execution
id: b19146a3-25d4-41b4-928b-1e2a92641b1b
status: test
description: Detects potential web shell execution from the ScreenConnect server process.
references:
- https://blackpointcyber.com/resources/blog/breaking-through-the-screen/
- https://www.connectwise.com/company/trust/security-bulletins/connectwise-screenconnect-23.9.8
author: Jason Rathbun (Blackpoint Cyber)
date: 2024-02-26
tags:
- attack.initial-access
- attack.t1190
logsource:
product: windows
category: process_creation
detection:
selection:
ParentImage|endswith: '\ScreenConnect.Service.exe'
Image|endswith:
- '\cmd.exe'
- '\csc.exe'
condition: selection
falsepositives:
- Unlikely
level: high
title: Hack Tool User Agent
id: c42a3073-30fb-48ae-8c99-c23ada84b103
status: test
description: Detects suspicious user agent strings user by hack tools in proxy logs
references:
- https://github.com/fastly/waf_testbed/blob/8bfc406551f3045e418cbaad7596cff8da331dfc/templates/default/scanners-user-agents.data.erb
- http://rules.emergingthreats.net/open/snort-2.9.0/rules/emerging-user_agents.rules
author: Florian Roth (Nextron Systems)
date: 2017-07-08
modified: 2022-07-07
tags:
- attack.initial-access
- attack.t1190
- attack.credential-access
- attack.t1110
logsource:
category: proxy
detection:
selection:
c-useragent|contains:
# Vulnerability scanner and brute force tools
- '(hydra)'
- ' arachni/'
- ' BFAC '
- ' brutus '
- ' cgichk '
- 'core-project/1.0'
- ' crimscanner/'
- 'datacha0s'
- 'dirbuster'
- 'domino hunter'
- 'dotdotpwn'
- 'FHScan Core'
- 'floodgate'
- 'get-minimal'
- 'gootkit auto-rooter scanner'
- 'grendel-scan'
- ' inspath '
- 'internet ninja'
- 'jaascois'
- ' zmeu '
- 'masscan'
- ' metis '
- 'morfeus fucking scanner'
- 'n-stealth'
- 'nsauditor'
- 'pmafind'
- 'security scan'
- 'springenwerk'
- 'teh forest lobster'
- 'toata dragostea'
- ' vega/'
- 'voideye'
- 'webshag'
- 'webvulnscan'
- ' whcc/'
# SQL Injection
- ' Havij'
- 'absinthe'
- 'bsqlbf'
- 'mysqloit'
- 'pangolin'
- 'sql power injector'
- 'sqlmap'
- 'sqlninja'
- 'uil2pn'
# Hack tool
- 'ruler' # https://www.crowdstrike.com/blog/using-outlook-forms-lateral-movement-persistence/
- 'Mozilla/5.0 (Windows; U; Windows NT 5.1; pt-PT; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729)' # SQLi Dumper
condition: selection
falsepositives:
- Unknown
level: high
title: Java Payload Strings
id: 583aa0a2-30b1-4d62-8bf3-ab73689efe6c
status: test
description: Detects possible Java payloads in web access logs
references:
- https://www.rapid7.com/blog/post/2022/06/02/active-exploitation-of-confluence-cve-2022-26134/
- https://www.rapid7.com/blog/post/2021/09/02/active-exploitation-of-confluence-server-cve-2021-26084/
- https://github.com/httpvoid/writeups/blob/62d3751945289d088ccfdf4d0ffbf61598a2cd7d/Confluence-RCE.md
- https://twitter.com/httpvoid0x2f/status/1532924261035384832
- https://medium.com/geekculture/text4shell-exploit-walkthrough-ebc02a01f035
author: frack113, Harjot Singh, "@cyb3rjy0t" (update)
date: 2022-06-04
modified: 2023-01-19
tags:
- cve.2022-26134
- cve.2021-26084
- attack.initial-access
- attack.t1190
logsource:
category: webserver
detection:
keywords:
- '%24%7B%28%23a%3D%40'
- '${(#a=@'
- '%24%7B%40java'
- '${@java'
- 'u0022java'
- '%2F%24%7B%23'
- '/${#'
- 'new+java.'
- 'getRuntime().exec('
- 'getRuntime%28%29.exec%28'
condition: keywords
falsepositives:
- Legitimate apps
level: high
title: SQL Injection Strings In URI
id: 5513deaf-f49a-46c2-a6c8-3f111b5cb453
status: test
description: Detects potential SQL injection attempts via GET requests in access logs.
references:
- https://www.acunetix.com/blog/articles/exploiting-sql-injection-example/
- https://www.acunetix.com/blog/articles/using-logs-to-investigate-a-web-application-attack/
- https://brightsec.com/blog/sql-injection-payloads/
- https://github.com/payloadbox/sql-injection-payload-list
- https://book.hacktricks.xyz/pentesting-web/sql-injection/mysql-injection
author: Saw Win Naung, Nasreddine Bencherchali (Nextron Systems), Thurein Oo (Yoma Bank)
date: 2020-02-22
modified: 2023-09-04
tags:
- attack.initial-access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-method: 'GET'
keywords:
- '@@version'
- '%271%27%3D%271'
- '=select '
- '=select('
- '=select%20'
- 'concat_ws('
- 'CONCAT(0x'
- 'from mysql.innodb_table_stats'
- 'from%20mysql.innodb_table_stats'
- 'group_concat('
- 'information_schema.tables'
- 'json_arrayagg('
- 'or 1=1#'
- 'or%201=1#'
- 'order by '
- 'order%20by%20'
- 'select * '
- 'select database()'
- 'select version()'
- 'select%20*%20'
- 'select%20database()'
- 'select%20version()'
- 'select%28sleep%2810%29'
- 'SELECTCHAR('
- 'table_schema'
- 'UNION ALL SELECT'
- 'UNION SELECT'
- 'UNION%20ALL%20SELECT'
- 'UNION%20SELECT'
- "'1'='1"
filter_main_status:
sc-status: 404
condition: selection and keywords and not 1 of filter_main_*
falsepositives:
- Java scripts and CSS Files
- User searches in search boxes of the respective website
- Internal vulnerability scanners can cause some serious FPs when used, if you experience a lot of FPs due to this think of adding more filters such as "User Agent" strings and more response codes
level: high
title: JNDIExploit Pattern
id: 412d55bc-7737-4d25-9542-5b396867ce55
status: test
description: Detects exploitation attempt using the JNDI-Exploit-Kit
references:
- https://github.com/pimps/JNDI-Exploit-Kit
- https://web.archive.org/web/20231015205935/https://githubmemory.com/repo/FunctFan/JNDIExploit
author: Florian Roth (Nextron Systems)
date: 2021-12-12
modified: 2022-12-25
tags:
- attack.initial-access
- attack.t1190
logsource:
category: webserver
detection:
keywords:
- '/Basic/Command/Base64/'
- '/Basic/ReverseShell/'
- '/Basic/TomcatMemshell'
- '/Basic/JettyMemshell'
- '/Basic/WeblogicMemshell'
- '/Basic/JBossMemshell'
- '/Basic/WebsphereMemshell'
- '/Basic/SpringMemshell'
- '/Deserialization/URLDNS/'
- '/Deserialization/CommonsCollections1/Dnslog/'
- '/Deserialization/CommonsCollections2/Command/Base64/'
- '/Deserialization/CommonsBeanutils1/ReverseShell/'
- '/Deserialization/Jre8u20/TomcatMemshell'
- '/TomcatBypass/Dnslog/'
- '/TomcatBypass/Command/'
- '/TomcatBypass/ReverseShell/'
- '/TomcatBypass/TomcatMemshell'
- '/TomcatBypass/SpringMemshell'
- '/GroovyBypass/Command/'
- '/WebsphereBypass/Upload/'
condition: keywords
falsepositives:
- Legitimate apps the use these paths
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: 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: 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: Script Interpreter Spawning Credential Scanner - Linux
id: f0025a69-e1b7-4dda-a53c-db21fa2d4071
related:
- id: 0f60b28c-64dd-4e2c-9a63-5334d3e3a6e6
type: similar
status: experimental
description: |
Detects a script interpreter process (like node.js or bun) spawning a known credential scanning tool (e.g., trufflehog, gitleaks).
This behavior is indicative of an attempt to find and steal secrets, as seen in the "Shai-Hulud: The Second Coming" campaign.
references:
- https://github.com/asyncapi/cli/blob/2efa4dff59bc3d3cecdf897ccf178f99b115d63d/bun_environment.js
- https://www.stepsecurity.io/blog/sha1-hulud-the-second-coming-zapier-ens-domains-and-other-prominent-npm-packages-compromised
- https://www.endorlabs.com/learn/shai-hulud-2-malware-campaign-targets-github-and-cloud-credentials-using-bun-runtime
- https://semgrep.dev/blog/2025/digging-for-secrets-sha1-hulud-the-second-coming-of-the-npm-worm/
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-11-25
tags:
- attack.credential-access
- attack.t1552
- attack.execution
- attack.collection
- attack.t1005
- attack.t1059.004
logsource:
category: process_creation
product: linux
detection:
selection_parent:
ParentImage|endswith:
# Add more script interpreters as needed
- '/node'
- '/bun'
selection_child:
- Image|endswith:
- '/trufflehog'
- '/gitleaks'
- CommandLine|contains:
- 'trufflehog'
- 'gitleaks'
condition: all of selection_*
falsepositives:
- Legitimate pre-commit hooks or CI/CD pipeline jobs that use a script to run a credential scanner as part of a security check.
level: high
title: Script Interpreter Spawning Credential Scanner - Windows
id: 0f60b28c-64dd-4e2c-9a63-5334d3e3a6e6
related:
- id: f0025a69-e1b7-4dda-a53c-db21fa2d4071
type: similar
status: experimental
description: |
Detects a script interpreter process (like node.js or bun) spawning a known credential scanning tool (e.g., trufflehog, gitleaks).
This behavior is indicative of an attempt to find and steal secrets, as seen in the "Shai-Hulud: The Second Coming" campaign.
references:
- https://github.com/asyncapi/cli/blob/2efa4dff59bc3d3cecdf897ccf178f99b115d63d/bun_environment.js
- https://www.stepsecurity.io/blog/sha1-hulud-the-second-coming-zapier-ens-domains-and-other-prominent-npm-packages-compromised
- https://www.endorlabs.com/learn/shai-hulud-2-malware-campaign-targets-github-and-cloud-credentials-using-bun-runtime
- https://semgrep.dev/blog/2025/digging-for-secrets-sha1-hulud-the-second-coming-of-the-npm-worm/
author: Swachchhanda Shrawan Poudel (Nextron Systems)
date: 2025-11-25
tags:
- attack.credential-access
- attack.t1552
- attack.collection
- attack.execution
- attack.t1005
- attack.t1059.007
logsource:
category: process_creation
product: windows
detection:
selection_parent:
ParentImage|endswith:
# Add more script interpreters as needed
- '\node.exe'
- '\bun.exe'
selection_child:
- Image|endswith:
- 'trufflehog.exe'
- 'gitleaks.exe'
- CommandLine|contains:
- 'trufflehog'
- 'gitleaks'
condition: all of selection_*
falsepositives:
- Legitimate pre-commit hooks or CI/CD pipeline jobs that use a script to run a credential scanner as part of a security check.
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_susp_script_interpretor_spawn_credential_scanner/info.yml
title: Credentials In Files
id: 53b1b378-9b06-4992-b972-dde6e423d2b4
status: test
description: Detecting attempts to extract passwords with grep and laZagne
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1552.001/T1552.001.md
author: 'Igor Fits, Mikhail Larin, oscd.community'
date: 2020-10-19
modified: 2021-11-27
tags:
- attack.credential-access
- attack.t1552.001
logsource:
product: macos
category: process_creation
detection:
selection1:
Image|endswith: '/grep'
CommandLine|contains: 'password'
selection2:
CommandLine|contains: 'laZagne'
condition: 1 of selection*
falsepositives:
- Unknown
level: high
title: Copy Passwd Or Shadow From TMP Path
id: fa4aaed5-4fe0-498d-bbc0-08e3346387ba
status: test
description: Detects when the file "passwd" or "shadow" is copied from tmp path
references:
- https://blogs.blackberry.com/
- https://twitter.com/Joseliyo_Jstnk/status/1620131033474822144
author: Joseliyo Sanchez, @Joseliyo_Jstnk
date: 2023-01-31
tags:
- attack.credential-access
- attack.t1552.001
logsource:
product: linux
category: process_creation
detection:
selection_img:
Image|endswith: '/cp'
selection_path:
CommandLine|contains: '/tmp/'
selection_file:
CommandLine|contains:
- 'passwd'
- 'shadow'
condition: all of selection_*
falsepositives:
- Unknown
level: high
title: Linux Recon Indicators
id: 0cf7a157-8879-41a2-8f55-388dd23746b7
status: test
description: Detects events with patterns found in commands used for reconnaissance on linux systems
references:
- https://github.com/sleventyeleven/linuxprivchecker/blob/0d701080bbf92efd464e97d71a70f97c6f2cd658/linuxprivchecker.py
author: Florian Roth (Nextron Systems)
date: 2022-06-20
tags:
- attack.reconnaissance
- attack.t1592.004
- attack.credential-access
- attack.t1552.001
logsource:
category: process_creation
product: linux
detection:
selection:
CommandLine|contains:
- ' -name .htpasswd'
- ' -perm -4000 '
condition: selection
falsepositives:
- Legitimate administration activities
level: high
title: Credentials In Files - Linux
id: df3fcaea-2715-4214-99c5-0056ea59eb35
status: test
description: 'Detecting attempts to extract passwords with grep'
references:
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1552.001/T1552.001.md
author: 'Igor Fits, oscd.community'
date: 2020-10-15
modified: 2023-04-30
tags:
- attack.credential-access
- attack.t1552.001
logsource:
product: linux
service: auditd
detection:
selection:
type: 'EXECVE'
keywords:
'|all':
- 'grep'
- 'password'
condition: selection and keywords
falsepositives:
- Unknown
level: high
title: HackTool - Typical HiveNightmare SAM File Export
id: 6ea858a8-ba71-4a12-b2cc-5d83312404c7
status: test
description: Detects files written by the different tools that exploit HiveNightmare
references:
- https://github.com/GossiTheDog/HiveNightmare
- https://github.com/FireFart/hivenightmare/
- https://github.com/WiredPulse/Invoke-HiveNightmare
- https://twitter.com/cube0x0/status/1418920190759378944
author: Florian Roth (Nextron Systems)
date: 2021-07-23
modified: 2024-06-27
tags:
- attack.credential-access
- attack.t1552.001
- cve.2021-36934
logsource:
product: windows
category: file_event
detection:
selection:
- TargetFilename|contains:
- '\hive_sam_' # Go version
- '\SAM-2021-' # C++ version
- '\SAM-2022-' # C++ version
- '\SAM-2023-' # C++ version
- '\SAM-haxx' # Early C++ versions
- '\Sam.save' # PowerShell version
- TargetFilename: 'C:\windows\temp\sam' # C# version of HiveNightmare
condition: selection
falsepositives:
- Files that accidentally contain these strings
level: high
title: Github High Risk Configuration Disabled
id: 8622c92d-c00e-463c-b09d-fd06166f6794
status: test
description: Detects when a user disables a critical security feature for an organization.
references:
- https://docs.github.com/en/organizations/managing-oauth-access-to-your-organizations-data/disabling-oauth-app-access-restrictions-for-your-organization
- https://docs.github.com/en/organizations/keeping-your-organization-secure/managing-security-settings-for-your-organization/reviewing-the-audit-log-for-your-organization#dependabot_alerts-category-actions
- https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/enabling-features-for-your-repository/managing-security-and-analysis-settings-for-your-repository
- https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/audit-log-events-for-your-enterprise
author: Muhammad Faisal (@faisalusuf)
date: 2023-01-29
modified: 2024-07-22
tags:
- attack.credential-access
- attack.persistence
- attack.defense-impairment
- attack.t1556
logsource:
product: github
service: audit
definition: 'Requirements: The audit log streaming feature must be enabled to be able to receive such logs. You can enable following the documentation here: https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/streaming-the-audit-log-for-your-enterprise#setting-up-audit-log-streaming'
detection:
selection:
action:
- 'business_advanced_security.disabled_for_new_repos'
- 'business_advanced_security.disabled_for_new_user_namespace_repos'
- 'business_advanced_security.disabled'
- 'business_advanced_security.user_namespace_repos_disabled'
- 'org.advanced_security_disabled_for_new_repos'
- 'org.advanced_security_disabled_on_all_repos'
- 'org.advanced_security_policy_selected_member_disabled'
- 'org.disable_oauth_app_restrictions'
- 'org.disable_two_factor_requirement'
- 'repo.advanced_security_disabled'
condition: selection
falsepositives:
- Approved administrator/owner activities.
level: high
title: AWS Identity Center Identity Provider Change
id: d3adb3ef-b7e7-4003-9092-1924c797db35
status: test
description: |
Detects a change in the AWS Identity Center (FKA AWS SSO) identity provider.
A change in identity provider allows an attacker to establish persistent access or escalate privileges via user impersonation.
references:
- https://docs.aws.amazon.com/singlesignon/latest/userguide/app-enablement.html
- https://docs.aws.amazon.com/singlesignon/latest/userguide/sso-info-in-cloudtrail.html
- https://docs.aws.amazon.com/service-authorization/latest/reference/list_awsiamidentitycentersuccessortoawssinglesign-on.html
author: Michael McIntyre @wtfender
date: 2023-09-27
tags:
- attack.persistence
- attack.credential-access
- attack.defense-impairment
- attack.t1556
logsource:
product: aws
service: cloudtrail
detection:
selection:
eventSource:
- 'sso-directory.amazonaws.com'
- 'sso.amazonaws.com'
eventName:
- 'AssociateDirectory'
- 'DisableExternalIdPConfigurationForDirectory'
- 'DisassociateDirectory'
- 'EnableExternalIdPConfigurationForDirectory'
condition: selection
falsepositives:
- Authorized changes to the AWS account's identity provider
level: high
title: Possible Shadow Credentials Added
id: f598ea0c-c25a-4f72-a219-50c44411c791
status: test
description: Detects possible addition of shadow credentials to an active directory object.
references:
- https://www.elastic.co/guide/en/security/8.4/potential-shadow-credentials-added-to-ad-object.html
- https://cyberstoph.org/posts/2022/03/detecting-shadow-credentials/
- https://twitter.com/SBousseaden/status/1581300963650187264?
author: Nasreddine Bencherchali (Nextron Systems), Elastic (idea)
date: 2022-10-17
tags:
- attack.persistence
- attack.credential-access
- attack.defense-impairment
- attack.t1556
logsource:
product: windows
service: security
definition: The "Audit Directory Service Changes" logging policy must be configured in order to receive events. Audit events are generated only for objects with configured system access control lists (SACLs). Audit events are generated only for objects with configured system access control lists (SACLs) and only when accessed in a manner that matches their SACL settings. This policy covers the following events ids - 5136, 5137, 5138, 5139, 5141. Note that the default policy does not cover User objects. For that a custom AuditRule need to be setup (See https://github.com/OTRF/Set-AuditRule)
detection:
selection:
EventID: 5136
AttributeLDAPDisplayName: 'msDS-KeyCredentialLink'
# If you experience a lot of FP you could uncomment the selection below
# There could be other cases for other tooling add them accordingly
# AttributeValue|contains: 'B:828'
# OperationType: '%%14674' # Value Added
# As stated in the FP sections it's better to filter out the expected accounts that perform this operation to tighten the logic
# Uncomment the filter below and add the account name (or any other specific field) accordingly
# Don't forget to add it to the condition section below
# filter:
# SubjectUserName: "%name%"
condition: selection
falsepositives:
- Modifications in the msDS-KeyCredentialLink attribute can be done legitimately by the Azure AD Connect synchronization account or the ADFS service account. These accounts can be added as Exceptions. (From elastic FP section)
level: high
title: Directory Service Restore Mode(DSRM) Registry Value Tampering
id: b61e87c0-50db-4b2e-8986-6a2be94b33b0
related:
- id: 53ad8e36-f573-46bf-97e4-15ba5bf4bb51
type: similar
status: test
description: |
Detects changes to "DsrmAdminLogonBehavior" registry value.
During a Domain Controller (DC) promotion, administrators create a Directory Services Restore Mode (DSRM) local administrator account with a password that rarely changes. The DSRM account is an “Administrator” account that logs in with the DSRM mode when the server is booting up to restore AD backups or recover the server from a failure.
Attackers could abuse DSRM account to maintain their persistence and access to the organization's Active Directory.
If the "DsrmAdminLogonBehavior" value is set to "0", the administrator account can only be used if the DC starts in DSRM.
If the "DsrmAdminLogonBehavior" value is set to "1", the administrator account can only be used if the local AD DS service is stopped.
If the "DsrmAdminLogonBehavior" value is set to "2", the administrator account can always be used.
references:
- https://adsecurity.org/?p=1785
- https://www.sentinelone.com/blog/detecting-dsrm-account-misconfigurations/
- https://book.hacktricks.xyz/windows-hardening/active-directory-methodology/dsrm-credentials
author: Nischal Khadgi
date: 2024-07-11
tags:
- attack.credential-access
- attack.persistence
- attack.defense-impairment
- attack.t1556
logsource:
category: registry_set
product: windows
detection:
selection:
TargetObject|endswith: '\Control\Lsa\DsrmAdminLogonBehavior'
filter_main_default_value:
Details: 'DWORD (0x00000000)' # Default value
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: high
title: Monero Crypto Coin Mining Pool Lookup
id: b593fd50-7335-4682-a36c-4edcb68e4641
status: stable
description: Detects suspicious DNS queries to Monero mining pools
references:
- https://www.nextron-systems.com/2021/10/24/monero-mining-pool-fqdns/
author: Florian Roth (Nextron Systems)
date: 2021-10-24
tags:
- attack.impact
- attack.t1496
- attack.exfiltration
- attack.t1567
logsource:
category: dns
detection:
selection:
query|contains:
- 'pool.minexmr.com'
- 'fr.minexmr.com'
- 'de.minexmr.com'
- 'sg.minexmr.com'
- 'ca.minexmr.com'
- 'us-west.minexmr.com'
- 'pool.supportxmr.com'
- 'mine.c3pool.com'
- 'xmr-eu1.nanopool.org'
- 'xmr-eu2.nanopool.org'
- 'xmr-us-east1.nanopool.org'
- 'xmr-us-west1.nanopool.org'
- 'xmr-asia1.nanopool.org'
- 'xmr-jp1.nanopool.org'
- 'xmr-au1.nanopool.org'
- 'xmr.2miners.com'
- 'xmr.hashcity.org'
- 'xmr.f2pool.com'
- 'xmrpool.eu'
- 'pool.hashvault.pro'
condition: selection
falsepositives:
- Legitimate crypto coin mining
level: high
title: Suspicious Dropbox API Usage
id: 25eabf56-22f0-4915-a1ed-056b8dae0a68
status: test
description: Detects an executable that isn't dropbox but communicates with the Dropbox API
references:
- https://app.any.run/tasks/7e906adc-9d11-447f-8641-5f40375ecebb
- https://www.zscaler.com/blogs/security-research/new-espionage-attack-molerats-apt-targeting-users-middle-east
author: Florian Roth (Nextron Systems)
date: 2022-04-20
tags:
- attack.command-and-control
- attack.exfiltration
- attack.t1105
- attack.t1567.002
logsource:
category: network_connection
product: windows
detection:
selection:
Initiated: 'true'
DestinationHostname|endswith:
- 'api.dropboxapi.com'
- 'content.dropboxapi.com'
filter_main_legit_dropbox:
# Note: It's better to add a specific path to the exact location(s) where dropbox is installed
Image|contains: '\Dropbox'
condition: selection and not 1 of filter_main_*
falsepositives:
- Legitimate use of the API with a tool that the author wasn't aware of
level: high
title: DNS Query for Anonfiles.com Domain - Sysmon
id: 065cceea-77ec-4030-9052-fc0affea7110
related:
- id: 29f171d7-aa47-42c7-9c7b-3c87938164d9
type: similar
status: test
description: Detects DNS queries for "anonfiles.com", which is an anonymous file upload platform often used for malicious purposes
references:
- https://www.trendmicro.com/vinfo/us/security/news/ransomware-spotlight/ransomware-spotlight-blackbyte
author: pH-T (Nextron Systems)
date: 2022-07-15
modified: 2023-01-16
tags:
- attack.exfiltration
- attack.t1567.002
logsource:
product: windows
category: dns_query
detection:
selection:
QueryName|contains: '.anonfiles.com'
condition: selection
falsepositives:
- Rare legitimate access to anonfiles.com
level: high
title: PUA - Rclone Execution
id: e37db05d-d1f9-49c8-b464-cee1a4b11638
related:
- id: a0d63692-a531-4912-ad39-4393325b2a9c
type: obsolete
- id: cb7286ba-f207-44ab-b9e6-760d82b84253
type: obsolete
status: test
description: Detects execution of RClone utility for exfiltration as used by various ransomwares strains like REvil, Conti, FiveHands, etc
references:
- https://research.nccgroup.com/2021/05/27/detecting-rclone-an-effective-tool-for-exfiltration/
- https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware
- https://us-cert.cisa.gov/ncas/analysis-reports/ar21-126a
- https://labs.sentinelone.com/egregor-raas-continues-the-chaos-with-cobalt-strike-and-rclone
- https://www.splunk.com/en_us/blog/security/darkside-ransomware-splunk-threat-update-and-detections.html
author: Bhabesh Raj, Sittikorn S, Aaron Greetham (@beardofbinary) - NCC Group
date: 2021-05-10
modified: 2023-03-05
tags:
- attack.exfiltration
- attack.t1567.002
logsource:
product: windows
category: process_creation
detection:
selection_specific_options:
CommandLine|contains|all:
- '--config '
- '--no-check-certificate '
- ' copy '
selection_rclone_img:
- Image|endswith: '\rclone.exe'
- Description: 'Rsync for cloud storage'
selection_rclone_cli:
CommandLine|contains:
- 'pass'
- 'user'
- 'copy'
- 'sync'
- 'config'
- 'lsd'
- 'remote'
- 'ls'
- 'mega'
- 'pcloud'
- 'ftp'
- 'ignore-existing'
- 'auto-confirm'
- 'transfers'
- 'multi-thread-streams'
- 'no-check-certificate '
condition: selection_specific_options or all of selection_rclone_*
falsepositives:
- Unknown
level: high
title: DNS Query for Anonfiles.com Domain - DNS Client
id: 29f171d7-aa47-42c7-9c7b-3c87938164d9
related:
- id: 065cceea-77ec-4030-9052-fc0affea7110
type: similar
status: test
description: Detects DNS queries for anonfiles.com, which is an anonymous file upload platform often used for malicious purposes
references:
- https://www.trendmicro.com/vinfo/us/security/news/ransomware-spotlight/ransomware-spotlight-blackbyte
author: Nasreddine Bencherchali (Nextron Systems)
date: 2023-01-16
tags:
- attack.exfiltration
- attack.t1567.002
logsource:
product: windows
service: dns-client
definition: 'Requirements: Microsoft-Windows-DNS Client Events/Operational Event Log must be enabled/collected in order to receive the events.'
detection:
selection:
EventID: 3008
QueryName|contains: '.anonfiles.com'
condition: selection
falsepositives:
- Rare legitimate access to anonfiles.com
level: high
title: Linux HackTool Execution
id: a015e032-146d-4717-8944-7a1884122111
status: test
description: Detects known hacktool execution based on image name.
references:
- https://github.com/Gui774ume/ebpfkit
- https://github.com/pathtofile/bad-bpf
- https://github.com/carlospolop/PEASS-ng
- https://github.com/t3l3machus/hoaxshell
- https://github.com/t3l3machus/Villain
- https://github.com/HavocFramework/Havoc
- https://github.com/1N3/Sn1per
- https://github.com/Ne0nd0g/merlin
- https://github.com/Pennyw0rth/NetExec/
author: Nasreddine Bencherchali (Nextron Systems), Georg Lauenstein (sure[secure])
date: 2023-01-03
modified: 2024-09-19
tags:
- attack.execution
- attack.resource-development
- attack.t1587
logsource:
product: linux
category: process_creation
detection:
selection_c2_frameworks:
Image|endswith:
- '/crackmapexec'
- '/havoc'
- '/merlin-agent'
- '/merlinServer-Linux-x64'
- '/msfconsole'
- '/msfvenom'
- '/ps-empire server'
- '/ps-empire'
- '/sliver-client'
- '/sliver-server'
- '/Villain.py'
selection_c2_framework_cobaltstrike:
Image|contains:
- '/cobaltstrike'
- '/teamserver'
selection_scanners:
Image|endswith:
- '/autorecon'
- '/httpx'
- '/legion'
- '/naabu'
- '/netdiscover'
- '/nuclei'
- '/recon-ng'
selection_scanners_sniper:
Image|contains: '/sniper'
selection_web_enum:
Image|endswith:
- '/dirb'
- '/dirbuster'
- '/eyewitness'
- '/feroxbuster'
- '/ffuf'
- '/gobuster'
- '/wfuzz'
- '/whatweb'
selection_web_vuln:
Image|endswith:
- '/joomscan'
- '/nikto'
- '/wpscan'
selection_exploit_tools:
Image|endswith:
- '/aircrack-ng'
- '/bloodhound-python'
- '/bpfdos'
- '/ebpfki'
- '/evil-winrm'
- '/hashcat'
- '/hoaxshell.py'
- '/hydra'
- '/john'
- '/ncrack'
# default binary: https://github.com/Pennyw0rth/NetExec/releases/download/v1.0.0/nxc-ubuntu-latest
- '/nxc-ubuntu-latest'
- '/pidhide'
- '/pspy32'
- '/pspy32s'
- '/pspy64'
- '/pspy64s'
- '/setoolkit'
- '/sqlmap'
- '/writeblocker'
selection_linpeas:
# covers: all linux versions listed here: https://github.com/carlospolop/PEASS-ng/releases
Image|contains: '/linpeas'
condition: 1 of selection_*
falsepositives:
- Unlikely
level: high
title: Uncommon File Created In Office Startup Folder
id: a10a2c40-2c4d-49f8-b557-1a946bc55d9d
status: test
description: Detects the creation of a file with an uncommon extension in an Office application startup folder
references:
- https://app.any.run/tasks/d6fe6624-6ef8-485d-aa75-3d1bdda2a08c/
- http://addbalance.com/word/startup.htm
- https://answers.microsoft.com/en-us/msoffice/forum/all/document-in-word-startup-folder-doesnt-open-when/44ab0932-2917-4150-8cdc-2f2cf39e86f3
- https://en.wikipedia.org/wiki/List_of_Microsoft_Office_filename_extensions
author: frack113, Nasreddine Bencherchali (Nextron Systems)
date: 2022-06-05
modified: 2023-12-13
tags:
- attack.resource-development
- attack.t1587.001
logsource:
product: windows
category: file_event
detection:
selection_word_paths:
- TargetFilename|contains: '\Microsoft\Word\STARTUP'
- TargetFilename|contains|all:
- '\Office'
- '\Program Files'
- '\STARTUP'
filter_exclude_word_ext:
TargetFilename|endswith:
- '.docb' # Word binary document introduced in Microsoft Office 2007
- '.docm' # Word macro-enabled document; same as docx, but may contain macros and scripts
- '.docx' # Word document
- '.dotm' # Word macro-enabled template; same as dotx, but may contain macros and scripts
- '.mdb' # MS Access DB
- '.mdw' # MS Access DB
- '.pdf' # PDF documents
- '.wll' # Word add-in
- '.wwl' # Word add-in
selection_excel_paths:
- TargetFilename|contains: '\Microsoft\Excel\XLSTART'
- TargetFilename|contains|all:
- '\Office'
- '\Program Files'
- '\XLSTART'
filter_exclude_excel_ext:
TargetFilename|endswith:
- '.xll'
- '.xls'
- '.xlsm'
- '.xlsx'
- '.xlt'
- '.xltm'
- '.xlw'
filter_main_office_click_to_run:
Image|contains: ':\Program Files\Common Files\Microsoft Shared\ClickToRun\'
Image|endswith: '\OfficeClickToRun.exe'
filter_main_office_apps:
Image|contains:
- ':\Program Files\Microsoft Office\'
- ':\Program Files (x86)\Microsoft Office\'
Image|endswith:
- '\winword.exe'
- '\excel.exe'
condition: ((selection_word_paths and not filter_exclude_word_ext) or (selection_excel_paths and not filter_exclude_excel_ext)) and not 1 of filter_main_*
falsepositives:
- False positive might stem from rare extensions used by other Office utilities.
level: high
title: Potential PsExec Remote Execution
id: ea011323-7045-460b-b2d7-0f7442ea6b38
status: test
description: Detects potential psexec command that initiate execution on a remote systems via common commandline flags used by the utility
references:
- https://learn.microsoft.com/en-us/sysinternals/downloads/psexec
- https://www.poweradmin.com/paexec/
- https://www.fireeye.com/blog/threat-research/2020/10/kegtap-and-singlemalt-with-a-ransomware-chaser.html
author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
date: 2023-02-28
modified: 2025-09-01
tags:
- attack.resource-development
- attack.t1587.001
logsource:
category: process_creation
product: windows
detection:
selection:
# Accepting EULA in commandline - often used in automated attacks
CommandLine|contains|all:
- 'accepteula'
- ' -u '
- ' -p '
- ' \\\\'
filter_main_localhost:
CommandLine|contains:
- '\\\\localhost'
- '\\\\127.'
condition: selection and not 1 of filter_main_*
falsepositives:
- Unknown
level: high
title: PsExec/PAExec Escalation to LOCAL SYSTEM
id: 8834e2f7-6b4b-4f09-8906-d2276470ee23
related:
- id: 207b0396-3689-42d9-8399-4222658efc99 # Generic rule based on similar cli flags
type: similar
status: test
description: Detects suspicious commandline flags used by PsExec and PAExec to escalate a command line to LOCAL_SYSTEM rights
references:
- https://learn.microsoft.com/en-us/sysinternals/downloads/psexec
- https://www.poweradmin.com/paexec/
- https://www.fireeye.com/blog/threat-research/2020/10/kegtap-and-singlemalt-with-a-ransomware-chaser.html
author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)
date: 2021-11-23
modified: 2024-03-05
tags:
- attack.resource-development
- attack.t1587.001
logsource:
category: process_creation
product: windows
detection:
selection_sys: # Escalation to LOCAL_SYSTEM
CommandLine|contains|windash:
# Note that you don't need to add the ".exe" part when using psexec/paexec
# The "-" can also be replaced with "/"
# The order of args isn't important
# "cmd" can be replaced by "powershell", "pwsh" or any other console like software
- ' -s cmd'
- ' -s -i cmd'
- ' -i -s cmd'
# Pwsh (For PowerShell 7)
- ' -s pwsh'
- ' -s -i pwsh'
- ' -i -s pwsh'
# PowerShell (For PowerShell 5)
- ' -s powershell'
- ' -s -i powershell'
- ' -i -s powershell'
selection_other:
CommandLine|contains:
- 'psexec'
- 'paexec'
- 'accepteula'
condition: all of selection_*
falsepositives:
- Admins that use PsExec or PAExec to escalate to the SYSTEM account for maintenance purposes (rare)
- Users that debug Microsoft Intune issues using the commands mentioned in the official documentation; see https://learn.microsoft.com/en-us/mem/intune/apps/intune-management-extension
level: high