Office Macro File Creation From Suspicious Process

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About the rule

Rule Type

Standard

Rule Description

Detects the creation of a office macro file from a a suspicious process

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "File Created or Modified" AND (PROCESSNAME endswith "\cscript.exe,\mshta.exe,\regsvr32.exe,\rundll32.exe,\wscript.exe" OR PARENTPROCESSNAME endswith "\cscript.exe,\mshta.exe,\regsvr32.exe,\rundll32.exe,\wscript.exe") AND (FILENAME endswith ".docm,.dotm,.xlsm,.xltm,.potm,.pptm" OR OBJECTNAME endswith ".docm,.dotm,.xlsm,.xltm,.potm,.pptm") select Action1.HOSTNAME,Action1.MESSAGE,Action1.USERNAME,Action1.DOMAIN,Action1.OBJECTNAME,Action1.FILENAME,Action1.PROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

frack113, Nasreddine Bencherchali (Nextron Systems)