Rule History

SID: 2000537 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 8 • Jul 30, 2010, 12:00 PM

Message:

ET SCAN NMAP -sS window 2048

Rule:

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"ET SCAN NMAP -sS window 2048"; fragbits:!D; dsize:0; flags:S,12; ack:0; window:2048; threshold: type both, track by_dst, count 1, seconds 60; classtype:attempted-recon; sid:2000537; rev:8; 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