Root Certificate Installed - PowerShell
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About the rule
Rule Type
Standard
Rule Description
Adversaries may install a root certificate on a compromised system to avoid warnings when connecting to adversary controlled web servers.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "PowerShell Script Block Logged" AND (SCRIPTEXECUTED contains "Move-Item" AND SCRIPTEXECUTED contains "Cert:\LocalMachine\Root") OR (SCRIPTEXECUTED contains "Import-Certificate" AND SCRIPTEXECUTED contains "Cert:\LocalMachine\Root") select Action1.HOSTNAME,Action1.MESSAGE,Action1.SCRIPTEXECUTED
Detection
Execution Mode
realtime
Log Sources
Windows
Author
oscd.community, @redcanary, Zach Stanford @svch0st


