DarkGate - Autoit3.EXE Execution Parameters

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About the rule

Rule Type

Standard

Rule Description

Detects execution of the legitimate Autoit3 utility from a suspicious parent process. AutoIt3.exe is used within the DarkGate infection chain to execute shellcode that performs process injection and connects to the DarkGate command-and-control server.

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND ((PROCESSNAME endswith "\Autoit3.exe" OR ORIGINALFILENAME = "AutoIt3.exe") AND PARENTPROCESSNAME endswith "\cmd.exe,\KeyScramblerLogon.exe,\msiexec.exe") AND PROCESSNAME notendswith ":\Program Files (x86)\AutoIt3\AutoIt3.exe,:\Program Files\AutoIt3\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

Micah Babinski