SigmaHQ Detections
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Detects persistence via Visual Studio Tools for Office (VSTO) add-ins in Office applications.
Detects execution of MemProcFS a memory forensics tool with the '-device' parameter.
MemProcFS mounts physical memory as a virtual file system, allowing direct access to process memory and system structures.
Threat actors were seen abusing this utility to mount memory dumps and then extract sensitive information from processes like LSASS or extract registry hives to obtain credentials, LSA secrets, SAM data, and cached domain credentials.
MemProcFS usage that is not part of authorized forensic analysis should be treated as suspicious and warrants further investigation.
MemProcFS mounts physical memory as a virtual file system, allowing direct access to process memory and system structures.
Threat actors were seen abusing this utility to mount memory dumps and then extract sensitive information from processes like LSASS or extract registry hives to obtain credentials, LSA secrets, SAM data, and cached domain credentials.
MemProcFS usage that is not part of authorized forensic analysis should be treated as suspicious and warrants further investigation.
Detects when a new admin role assignment is created. Which could be a sign of privilege escalation or persistence
Detects when a API token is created
Detects when an application Sign-on Policy is modified or deleted.
Detects when an Network Zone is Deactivated or Deleted.
Detects when a user has potentially entered their password into the
username field, which will cause the password to be retained in log files.
username field, which will cause the password to be retained in log files.
Detects new user account creation
Detects when an security threat is detected in Okta.
Detects file creation events indicating NetExec (nxc.exe) execution on the local machine.
NetExec is a PyInstaller-bundled binary that extracts its embedded data files to a "_MEI<random>" directory
under the Temp folder upon execution. Files dropped under the "\nxc\" sub-directory of that
extraction path are unique to NetExec and serve as reliable on-disk indicators of execution.
NetExec (formerly CrackMapExec) is a widely used post-exploitation and lateral movement tool used for
Active Directory enumeration, credential harvesting, and remote code execution.
NetExec is a PyInstaller-bundled binary that extracts its embedded data files to a "_MEI<random>" directory
under the Temp folder upon execution. Files dropped under the "\nxc\" sub-directory of that
extraction path are unique to NetExec and serve as reliable on-disk indicators of execution.
NetExec (formerly CrackMapExec) is a widely used post-exploitation and lateral movement tool used for
Active Directory enumeration, credential harvesting, and remote code execution.
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