alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Meterpreter or Other Reverse Shell SSL Cert"; flow:established,to_client; tls.cert_serial; content:"08:BB:00:EE"; bsize:11; fast_pattern; tls.cert_subject; bsize:25; content:"C|3d 2c 20|ST|3d 2c 20|L|3d 2c 20|O|3d 2c 20|OU|3d 2c 20|CN|3d|"; reference:md5,c3f76f444edf0b90b887d7979342e9f0; classtype:trojan-activity; sid:2035651; rev:3; metadata:attack_target Client_Endpoint, created_at 2015_09_22, deployment Perimeter, confidence High, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2024_04_25;)