TCP Null Flag Attack
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About the rule
Rule Type
Standard
Rule Description
This rule detects TCP packets with no flags set. Such behavior is often linked to reconnaissance or IDS evasion techniques.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "DETECTION_ACTION_NETWORK_TCP_NULL_FLAG_ATTACK" select Action1.HOSTNAME,Action1.IDS_NAME,Action1.ACTION,Action1.MSG_ID,Action1.EVENTID,Action1.TYPE,Action1.SUBTYPE,Action1.DEVICETYPE,Action1.USERNAME,Action1.SOURCE_IP,Action1.TYPESOURCE,Action1.TYPEFACILITY,Action1.THREAT_ID,Action1.IDS_STATUS,Action1.MESSAGE
Detection
Execution Mode
realtime
Log Sources
Network
