Probable TCP Null Scan Detected
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About the rule
Rule Type
Standard
Rule Description
Detects null scan packets with no TCP flags set, commonly used in stealth reconnaissance.
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "DETECTION_ACTION_SONICWALL_TCP_NULL_SCAN_DETECTED" select Action1.HOSTNAME,Action1.IDS_NAME,Action1.IDS_STATUS,Action1.EVENTID,Action1.SOURCE_IP,Action1.DEST_IP,Action1.DESCRIPTION,Action1.MESSAGE
Detection
Execution Mode
realtime
Log Sources
SonicWall
