Process Terminated Via Taskkill
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About the rule
Rule Type
Standard
Rule Description
Detects execution of "taskkill.exe" in order to stop a service or a process. Look for suspicious parents executing this command in order to hunt for potential malicious activity. Attackers might leverage this in order to conduct data destruction or data encrypted for impact on the data stores of services like Exchange and SQL Server.
Severity
Attention
Rule Requirement
Criteria
Action1: actionname = "Process started" AND ((PROCESSNAME endswith "\taskkill.exe" OR ORIGINALFILENAME = "taskkill.exe") AND (COMMANDLINE contains " -f , /f , –f , —f , ―f " OR COMMANDLINE endswith " -f, /f, –f, —f, ―f") AND (COMMANDLINE contains " -im , /im , –im , —im , ―im " OR COMMANDLINE contains " -pid , /pid , –pid , —pid , ―pid ")) AND (PARENTPROCESSNAME notcontains "\AppData\Local\Temp\,:\Windows\Temp" OR PARENTPROCESSNAME notendswith ".tmp") select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
frack113, MalGamy (Nextron Systems), Nasreddine Bencherchali
