alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Observed Malicious SSL/TLS Certificate (QakBot)"; flow:established,to_client; tls.cert_subject; content:"C=PT, OU=Egnvvheisi Knty Jvtshyi, CN=ragouxvase.biz"; bsize:51; fast_pattern; reference:url,twitter.com/Unit42_Intel/status/1585046057339207680; classtype:domain-c2; sid:2039578; rev:2; metadata:attack_target Client_Endpoint, created_at 2022_10_26, deployment Perimeter, deprecation_reason Age, malware_family Qbot, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_10_08, reviewed_at 2024_10_08;)