alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE [PTsecurity] Ursnif Encoded Payload Inbound"; flow:established,to_client; http.stat_code; content:"200"; file_data; content:"|3d fa 61 3c 79 ee de ea 18 90 08 95 55 44 8d 41|"; depth:16; fast_pattern; reference:url,github.com/ptresearch/AttackDetection; classtype:trojan-activity; sid:2024837; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_10_12, deployment Perimeter, malware_family ursnif, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_04_15;)