alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Spy.Banker.ACUT CnC Checkin"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; http.user_agent; bsize:38; content:"Mozilla/3.0 (compatible|3b 20|Indy Library)"; fast_pattern; http.request_body; content:"plugin="; startswith; content:"&windows="; content:"&user="; content:"&av="; content:"&bs="; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; reference:md5,219cf8b022d3933ba46f482478450f49; classtype:command-and-control; sid:2024099; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_03_22, deployment Perimeter, malware_family Banload, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2024_05_04;)