SSLBL: Malicious SSL certificate detected (AsyncRAT C&C)
Sourcesslbl/ssl-fp-blacklist
CreatedMarch 23, 2026
UpdatedMarch 23, 2026
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (AsyncRAT C&C)"; tls_cert_fingerprint; content:"51:f2:05:40:cd:77:ca:a3:67:02:bb:35:9c:8c:06:94:9a:ec:ea:02"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/51f20540cd77caa36702bb359c8c06949aecea02/; sid:903209313; rev:1;)
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