Execution of Powershell Script in Public Folder

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About the rule

Rule Type

Standard

Rule Description

This rule detects execution of PowerShell scripts located in the "C:\\Users\\Public" folder

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND PROCESSNAME endswith "\powershell.exe,\pwsh.exe" AND COMMANDLINE contains "-f C:\Users\Public,-f "C:\Users\Public,-f %Public%,-fi C:\Users\Public,-fi "C:\Users\Public,-fi %Public%,-fil C:\Users\Public,-fil "C:\Users\Public,-fil %Public%,-file C:\Users\Public,-file "C:\Users\Public,-file %Public%" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Max Altgelt (Nextron Systems)