alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32.ClipBanker.uhn Exfil"; flow:established,to_server; http.request_line; content:"POST|20|/upfile|20|"; startswith; http.user_agent; content:"HttpSendRequest"; http.request_body; content:"|2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d|1234567890123"; startswith; fast_pattern; content:"Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|"; distance:0; content:"|2e|"; distance:0; content:"|2e|jpg|22 0d 0a|"; distance:14; within:7; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; reference:md5,ded2b49dbb947c0fc031919158447d46; classtype:trojan-activity; sid:2037954; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_08_04, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_04, reviewed_at 2025_01_06;)