alert tls $EXTERNAL_NET 1024: -> $HOME_NET any (msg:"ET MALWARE [PTsecurity] Fake SSL Certificate Observed (Yahoo)"; tls.cert_subject; content:"C=US"; content:"ST=Arizona"; content:"L=Phoenix"; content:"O=Yahoo Widget, Inc."; content:"OU=Yahoo Widget Bureau"; content:"CN=Yahoo Widget, Inc."; tls.cert_issuer; content:"C=US"; content:"ST=Arizona"; content:"L=Phoenix"; content:"O=Yahoo Widget, Inc."; content:"OU=Yahoo Widget Bureau"; content:"CN=Yahoo Widget, Inc."; fast_pattern; reference:md5,ce413a29e6cde5701a26e7e4e02ecc66; classtype:trojan-activity; sid:2025412; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_03_12, deployment Perimeter, malware_family QRat, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_11_19;)