Renamed AutoIt Execution

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About the rule

Rule Type

Standard

Rule Description

Detects the execution of a renamed AutoIt2.exe or AutoIt3.exe. AutoIt is a scripting language and automation tool for Windows systems. While primarily used for legitimate automation tasks, it can be misused in cyber attacks. Attackers can leverage AutoIt to create and distribute malware, including keyloggers, spyware, and botnets. A renamed AutoIt executable is particularly suspicious.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND (COMMANDLINE contains " /AutoIt3ExecuteScript, /ErrorStdOut" OR HASHES contains "IMPHASH=FDC554B3A8683918D731685855683DDF,IMPHASH=CD30A61B60B3D60CECDB034C8C83C290,IMPHASH=F8A00C72F2D667D2EDBB234D0C0AE000" OR ORIGINALFILENAME = "AutoIt3.exe,AutoIt2.exe,AutoIt.exe") AND PROCESSNAME notendswith "\AutoIt.exe,\AutoIt2.exe,\AutoIt3_x64.exe,\AutoIt3.exe" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Florian Roth (Nextron Systems)