Rule History

SID: 903203572 • Source: sslbl/ssl-fp-blacklist

Versions (3)

Version DetailsCurrent

Rev: 1 • Jun 25, 2025, 11:40 AM

Message:

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

Rule:

alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (Ostap C&C)"; tls_cert_fingerprint; content:"22:81:2a:d3:87:63:2e:1b:4d:1c:cf:5e:91:16:86:fd:c5:aa:26:5f"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/22812ad387632e1b4d1ccf5e911686fdc5aa265f/; sid:903203572; 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