Potential CommandLine Path Traversal Via Cmd.EXE

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About the rule

Rule Type

Standard

Rule Description

Detects potential path traversal attempt via cmd.exe. Could indicate possible command/argument confusion/hijacking

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND ((PARENTPROCESSNAME endswith "\cmd.exe" OR PROCESSNAME endswith "\cmd.exe" OR ORIGINALFILENAME = "cmd.exe") AND (PARENTPROCESSCOMMANDLINE contains "/c,/k,/r" OR COMMANDLINE contains "/c,/k,/r") AND (PARENTPROCESSCOMMANDLINE = "/../../" OR COMMANDLINE contains "/../../")) AND COMMANDLINE notcontains "\Tasktop\keycloak\bin\/../../jre\bin\java" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

xknow @xknow_infosec, Tim Shelton