Rule History

SID: 903201926 • Source: abuse.ch/sslbl-blacklist

Versions (3)

Version DetailsCurrent

Rev: 1 • Jun 25, 2025, 11:40 AM

Message:

SSLBL: Malicious SSL certificate detected (Quakbot C&C)

Rule:

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (Quakbot C&C)"; tls_cert_fingerprint; content:"b4:a8:b5:5e:d5:00:a0:8f:3c:83:c2:f4:70:8a:ea:66:a5:d5:21:dc"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/b4a8b55ed500a08f3c83c2f4708aea66a5d521dc/; sid:903201926; 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