Rule History

SID: 2100623 • Source: et/open

Versions (3)

Version DetailsCurrent

Rev: 7 • Sep 23, 2010, 12:00 PM

Message:

GPL SCAN NULL

Rule:

alert tcp $EXTERNAL_NET any -> $HOME_NET any (msg:"GPL SCAN NULL"; flow:stateless; ack:0; flags:0; seq:0; reference:arachnids,4; classtype:attempted-recon; sid:2100623; rev:7; metadata:created_at 2010_09_23, 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:

Oct 8, 2025, 9:38 PM

Filename:

rules/emerging-scan.rules