Rule History

SID: 903203579 • 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:"41:c8:2d:5d:c9:bd:75:f6:7b:77:6b:b0:d3:41:f5:76:a0:df:ae:30"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/41c82d5dc9bd75f67b776bb0d341f576a0dfae30/; sid:903203579; 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