SSLBL: Malicious SSL certificate detected (OffLoader C&C)
Sourcesslbl/ssl-fp-blacklist
CreatedFebruary 9, 2026
UpdatedFebruary 9, 2026
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (OffLoader C&C)"; tls_cert_fingerprint; content:"57:37:bb:f3:75:55:5b:8e:6a:b9:75:32:7d:e4:8d:00:c0:84:a8:d8"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/5737bbf375555b8e6ab975327de48d00c084a8d8/; sid:903208863; rev:1;)
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