Rule History

SID: 903204116 • 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:"9b:73:cd:49:f8:4f:44:ef:b0:1c:c5:b0:f4:5d:63:6c:02:9b:36:e3"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/9b73cd49f84f44efb01cc5b0f45d636c029b36e3/; sid:903204116; 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