Rule History

SID: 2000536 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 7 • Jul 30, 2010, 12:00 PM

Message:

ET SCAN NMAP -sO

Rule:

alert ip $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sO"; dsize:0; ip_proto:21; threshold:type both, track by_dst, count 1, seconds 60; classtype:attempted-recon; sid:2000536; rev:7; metadata:created_at 2010_07_30, confidence Low, signature_severity Informational, updated_at 2019_07_26;)

Created:

Jul 30, 2010, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

May 30, 2025, 12:04 AM

Filename:

rules/emerging-scan.rules