Gzip Archive Decode Via PowerShell
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About the rule
Rule Type
Standard
Rule Description
Detects attempts of decoding encoded Gzip archives via PowerShell.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Process started" AND COMMANDLINE contains "GZipStream" AND COMMANDLINE contains "::Decompress" select Action1.HOSTNAME,Action1.MESSAGE,Action1.COMMANDLINE,Action1.FILE_NAME,Action1.PROCESSNAME,Action1.USERNAME,Action1.PARENTPROCESSNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Hieu Tran
