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

SID: 903208927Rev: 10 views
Sourceabuse.ch/sslbl-blacklist
CreatedFebruary 16, 2026
UpdatedFebruary 16, 2026
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (QuasarRAT C&C)"; tls_cert_fingerprint; content:"40:91:cd:f2:35:52:20:76:66:8c:6f:69:84:79:d4:af:4e:5d:2b:f8"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/4091cdf235522076668c6f698479d4af4e5d2bf8/; sid:903208927; rev:1;)

References

urlsslbl.abuse.ch/ssl-certificates/sha1/4091cdf235522076668c6f698479d4af4e5d2bf8/

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