Scheduled Task Creation From Potential Suspicious Parent Location
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About the rule
Rule Type
Standard
Rule Description
Detects the execution of "schtasks.exe" from a parent that is located in a potentially suspicious location. Multiple malware strains were seen exhibiting a similar behavior in order to achieve persistence.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND (PARENTPROCESSNAME contains ":\Temp\,\AppData\Local\,\AppData\Roaming\,\Temporary Internet,\Users\Public\,\Windows\Temp" AND PROCESSNAME endswith "\schtasks.exe" AND COMMANDLINE contains "/Create ") AND COMMANDLINE notcontains "update_task.xml,unattended.ini" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Florian Roth (Nextron Systems)
