SSLBL: Malicious SSL certificate detected (Socks5Systemz C&C)

SID: 903208768Rev: 10 views
Sourcesslbl/ssl-fp-blacklist
CreatedJanuary 21, 2026
UpdatedJanuary 21, 2026
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (Socks5Systemz C&C)"; tls_cert_fingerprint; content:"51:da:91:07:81:54:68:1d:b9:aa:c3:77:57:07:cc:7a:56:0a:cb:fd"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/51da91078154681db9aac3775707cc7a560acbfd/; sid:903208768; rev:1;)

References

urlsslbl.abuse.ch/ssl-certificates/sha1/51da91078154681db9aac3775707cc7a560acbfd/

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