ET MALWARE Sn0wsLogger CnC Exfil M1

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Sn0wsLogger CnC Exfil M1";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:!".";
    http.user_agent;
    content:"RestSharp/"; startswith;
    http.request_body;
    content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|token|22 0d 0a 0d 0a|token_"; fast_pattern;
    content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|name|22 0d 0a|";
    content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|text|22 0d 0a|";
    content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|file|22 0d 0a|";
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    reference:md5,644038dbb036d00f45969afb7992e762;
    classtype:trojan-activity;
    sid:2031582; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_01_28, deployment Perimeter, malware_family Sn0wsLogger, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_12;
)