Rule History

SID: 903206975 • 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:"18:5a:6e:6a:e4:f9:1d:57:90:e6:28:9a:26:fb:c7:bd:42:e9:71:b2"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/185a6e6ae4f91d5790e6289a26fbc7bd42e971b2/; sid:903206975; 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