Rule History

SID: 903206388 • 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:"b5:c4:bf:14:1a:b3:e5:c0:e5:84:a8:df:49:0f:9a:db:0b:4b:06:d4"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/b5c4bf141ab3e5c0e584a8df490f9adb0b4b06d4/; sid:903206388; 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