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sigmaDRL-1.1from SigmaHQ/sigma

HackTool - NetExec File Indicators

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.

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ATT&CK techniques
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