Suspicious Cobalt Strike DNS Beaconing - Sysmon
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About the rule
Rule Type
Standard
Rule Description
Detects a program that invoked suspicious DNS queries known from Cobalt Strike beacons
Severity
Critical
Rule Requirement
Criteria
Action1: actionname = "sa_dns_query" AND QUERY startswith "aaa.stage.,post.1" OR QUERY contains ".stage.123456." select Action1.HOSTNAME,Action1.MESSAGE,Action1.PROCESSNAME,Action1.QUERY,Action1.STATUSCODE,Action1.RESULT
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Florian Roth (Nextron Systems)


