PUA - NirCmd Execution
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About the rule
Rule Type
Standard
Rule Description
Detects the use of NirCmd tool for command execution, which could be the result of legitimate administrative activity
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND ((PROCESSNAME endswith "\NirCmd.exe" OR ORIGINALFILENAME = "NirCmd.exe") OR COMMANDLINE contains " execmd ,.exe script ,.exe shexec , runinteractive ") OR (COMMANDLINE contains " exec , exec2 " AND COMMANDLINE contains " show , hide ") 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), Nasreddine Bencherchali (Nextron Systems)
