alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE IcedID/Emotet Certificate Observed M1"; flow:established,to_client; tls.cert_subject; content:"C=US, ST=Texas, L=Phenix, O=Yahos, OU=IT, CN=foror2"; reference:md5,8430d8cf1b1edd6c49092a7dd6412a8a; classtype:trojan-activity; sid:2035051; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_03_28, deployment Perimeter, malware_family Emotet, malware_family IcedID, confidence High, signature_severity Major, tag Emotet, tag IcedID, updated_at 2020_08_25;)