alert http $EXTERNAL_NET 8080 -> $HOME_NET any (msg:"ET MALWARE W32.Geodo/Emotet Checkin Fake 404 Response"; flow:established,to_client; flowbits:isset,ETPRO.Emotet; http.stat_code; content:"404"; file.data; content:!"<html"; pcre:"/^[\x20-\x7e\r\n]{0,13}[^\x20-\x7e\r\n]/si"; reference:md5,dacdcd451204265ad6f44ef99db1f371; classtype:command-and-control; sid:2035062; rev:5; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_12_01, deployment Perimeter, malware_family Geodo, malware_family Emotet, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_03_08;)