Rule History

SID: 903204111 • 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:"bc:b6:5e:65:8a:6d:21:d8:2a:7d:1e:b1:d4:e4:e7:26:86:a7:02:8a"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/bcb65e658a6d21d82a7d1eb1d4e4e72686a7028a/; sid:903204111; 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