alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Sharik/Smoke Fake 404 Response with Payload Location"; flow:established,from_server; http.stat_code; content:"404"; file.data; content:"|00 00|Location|3a 20|"; depth:12; fast_pattern; reference:md5,6ccf5004f5bd1ffd26a428961a4baf6e; classtype:trojan-activity; sid:2026556; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_10_25, deployment Perimeter, malware_family Sharik, malware_family SmokeLoader, performance_impact Low, confidence High, signature_severity Major, tag Fake_404, updated_at 2020_08_27;)