SSLBL: Malicious SSL certificate detected (OffLoader C&C)
Sourcesslbl/ssl-fp-blacklist
CreatedFebruary 16, 2026
UpdatedFebruary 16, 2026
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (OffLoader C&C)"; tls_cert_fingerprint; content:"a7:c6:1d:ff:5b:d7:db:98:a5:b2:37:98:e0:1f:f0:2c:e0:3f:02:5c"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/a7c61dff5bd7db98a5b23798e01ff02ce03f025c/; sid:903208931; rev:1;)
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