alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE [PTsecurity] Adwind SSL Certificate Observed"; flow:established,from_server; tls.cert_issuer; content:"hgfyuilijhk"; tls.cert_serial; content:"70:FE:E3:2F"; fast_pattern; reference:md5,f2bf38a25919e24f0c96d9ec30e4e8d4; classtype:trojan-activity; sid:2025209; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_01_18, deployment Perimeter, malware_family Adwind, malware_family Qarallex, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_24;)