Suspicious Schtasks Schedule Types

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About the rule

Rule Type

Standard

Rule Description

Detects scheduled task creations or modification on a suspicious schedule type

Severity

Trouble

Rule Requirement

Criteria

Action1: actionname = "Process started" AND ((PROCESSNAME endswith "\schtasks.exe" OR ORIGINALFILENAME = "schtasks.exe") AND COMMANDLINE contains " ONLOGON , ONSTART , ONCE , ONIDLE ") AND COMMANDLINE notcontains "NT AUT, SYSTEM,HIGHEST" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME

Detection

Execution Mode

realtime

Log Sources

Windows

Author

Nasreddine Bencherchali (Nextron Systems)