Rule History

SID: 2100467 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 5 • Sep 23, 2010, 12:00 PM

Message:

GPL SCAN Nemesis v1.1 Echo

Rule:

alert icmp $EXTERNAL_NET any -> $HOME_NET any (msg:"GPL SCAN Nemesis v1.1 Echo"; dsize:20; icmp_id:0; icmp_seq:0; itype:8; content:"|00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00|"; reference:arachnids,449; classtype:attempted-recon; sid:2100467; rev:5; metadata:created_at 2010_09_23, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)

Created:

Sep 23, 2010, 12:00 PM

Updated:

Jul 26, 2019, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Dec 15, 2025, 10:34 PM

Filename:

rules/emerging-scan.rules