Rule History

SID: 903204390 • Source: sslbl/ssl-fp-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:"1c:64:1e:4a:64:a8:27:88:d5:c3:09:bb:06:0b:6c:9b:1c:d1:ad:5e"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/1c641e4a64a82788d5c309bb060b6c9b1cd1ad5e/; sid:903204390; 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