SSLBL: Malicious SSL certificate detected (Vidar C&C)
Sourcesslbl/ssl-fp-blacklist
CreatedMarch 30, 2026
UpdatedMarch 30, 2026
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (Vidar C&C)"; tls_cert_fingerprint; content:"55:64:b8:5f:b6:41:db:b2:9c:8d:4c:26:5b:4e:41:b3:47:6a:85:1d"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/5564b85fb641dbb29c8d4c265b4e41b3476a851d/; sid:903209392; rev:1;)
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