Rule History

SID: 2033623 • Source: et/open

Versions (4)

Version DetailsCurrent

Rev: 2 • Jul 30, 2021, 12:00 PM

Message:

ET MALWARE Observed Malicious SSL Cert (FIN8 CnC)

Rule:

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Observed Malicious SSL Cert (FIN8 CnC)"; flow:from_server,established; tls.cert_subject; content:"CN=git-api.com"; nocase; fast_pattern; classtype:domain-c2; sid:2033623; rev:2; metadata:attack_target Client_and_Server, created_at 2021_07_30, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag SSL_Malicious_Cert, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_30;)

Created:

Jul 30, 2021, 12:00 PM

Updated:

Jul 30, 2021, 12:00 PM

DB Created:

Sep 21, 2024, 3:00 AM

DB Updated:

Sep 9, 2025, 9:34 PM

Filename:

rules/emerging-malware.rules