Rule History

SID: 903204184 • Source: sslbl/ssl-fp-blacklist

Versions (3)

Version DetailsCurrent

Rev: 1 • Jun 25, 2025, 11:40 AM

Message:

SSLBL: Malicious SSL certificate detected (CobaltStrike C&C)

Rule:

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (CobaltStrike C&C)"; tls_cert_fingerprint; content:"5b:cf:eb:c8:5e:95:1c:56:84:fa:b6:00:4d:a8:e4:52:83:ee:2c:2f"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/5bcfebc85e951c5684fab6004da8e45283ee2c2f/; sid:903204184; rev:1;)

Created:

Jun 25, 2025, 11:40 AM

Updated:

Jun 25, 2025, 11:40 AM

DB Created:

Jul 17, 2025, 2:34 PM

DB Updated:

Jul 17, 2025, 2:34 PM

Filename:

sslblacklist_tls_cert.rules