alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Unknown Trojan Dropped by Angler Aug 29 2014"; flow:established,to_client; tls.cert_serial; content:"00:C4:A8:4B:DA:47:94:14:C1"; fast_pattern; tls.cert_subject; content:"OU=office"; classtype:trojan-activity; sid:2019086; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2014_08_29, deployment Perimeter, malware_family Angler, confidence Medium, signature_severity Critical, tag Angler, tag Exploit_Kit, updated_at 2024_04_23;)