Compress-Archive Cmdlet Execution
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About the rule
Rule Type
Standard
Rule Description
Detects PowerShell scripts that make use of the "Compress-Archive" cmdlet in order to compress folders and files. An adversary might compress data (e.g., sensitive documents) that is collected prior to exfiltration in order to make it portable and minimize the amount of data sent over the network.
Severity
Attention
Rule Requirement
Criteria
Action1: actionname = "PowerShell Script Block Logged" AND SCRIPTEXECUTED contains "Compress-Archive" select Action1.HOSTNAME,Action1.MESSAGE,Action1.SCRIPTEXECUTED
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Timur Zinniatullin, oscd.community
