Rule History

SID: 2037958 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 1 • Aug 8, 2022, 12:00 PM

Message:

ET JA3 Hash - DeimosC2 Agent Activity (set)

Rule:

alert tls $HOME_NET any -> $EXTERNAL_NET any (msg:"ET JA3 Hash - DeimosC2 Agent Activity (set)"; flowbits:set,ET.deimosc2.ja3; flowbits:noalert; ja3.hash; content:"e564ee1b7bcae4467d8c759df910ed9c"; reference:url,github.com/DeimosC2/DeimosC2; classtype:bad-unknown; sid:2037958; rev:1; metadata:attack_target Client_Endpoint, created_at 2022_08_08, deployment Perimeter, confidence Low, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_08;)

Created:

Aug 8, 2022, 12:00 PM

Updated:

Aug 8, 2022, 12:00 PM

DB Created:

Aug 8, 2022, 10:00 PM

DB Updated:

Sep 1, 2025, 8:35 PM

Filename:

rules/emerging-ja3.rules