Rule History

SID: 903206286 • Source: abuse.ch/sslbl-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:"4c:a6:12:7c:32:d2:b8:68:44:ab:14:da:bf:28:cc:28:3e:e6:cb:87"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/4ca6127c32d2b86844ab14dabf28cc283ee6cb87/; sid:903206286; 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