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

SID: 903209007Rev: 10 views
Sourcesslbl/ssl-fp-blacklist
CreatedFebruary 23, 2026
UpdatedFebruary 23, 2026
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (ConnectWise C&C)"; tls_cert_fingerprint; content:"fd:87:cd:59:29:c5:44:5b:fc:74:7c:d9:09:46:9f:6d:e2:20:05:a3"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/fd87cd5929c5445bfc747cd909469f6de22005a3/; sid:903209007; rev:1;)

References

urlsslbl.abuse.ch/ssl-certificates/sha1/fd87cd5929c5445bfc747cd909469f6de22005a3/

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