Powershell DNSExfiltration
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About the rule
Rule Type
Standard
Rule Description
DNSExfiltrator allows for transferring (exfiltrate) a file over a DNS request covert channel
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "PowerShell Script Block Logged" AND SCRIPTEXECUTED contains "Invoke-DNSExfiltrator" OR (SCRIPTEXECUTED contains " -i " AND SCRIPTEXECUTED contains " -d " AND SCRIPTEXECUTED contains " -p " AND SCRIPTEXECUTED contains " -doh " AND SCRIPTEXECUTED contains " -t ")
select Action1.HOSTNAME,Action1.MESSAGE,Action1.SCRIPTEXECUTED,Action1.DOMAIN,Action1.PATH,Action1.USERNAME
Detection
Execution Mode
realtime
Log Sources
Windows
Author
frack113
