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

SID: 903209805Rev: 1EnabledDerived3 views
Filesslblacklist_tls_cert.rules
CreatedJune 4, 2026
UpdatedJune 4, 2026
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"SSLBL: Malicious SSL certificate detected (QuasarRAT C&C)"; tls_cert_fingerprint; content:"5b:27:05:1d:67:aa:2c:ce:93:14:59:60:03:b6:87:09:a1:3f:c0:03"; reference:url, sslbl.abuse.ch/ssl-certificates/sha1/5b27051d67aa2cce9314596003b68709a13fc003/; sid:903209805; rev:1;)

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