Rule History

SID: 903203720 • 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:"d5:c7:e0:50:11:a9:f2:ff:fb:21:4d:0a:d2:21:b4:5d:9b:e2:e2:14"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/d5c7e05011a9f2fffb214d0ad221b45d9be2e214/; sid:903203720; 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