ET MALWARE Win32.ClipBanker.uhn Exfil

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;
)