ET MALWARE Red Wolf/RedCurl Payload Retrieval Attempt M4

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Red Wolf/RedCurl Payload Retrieval Attempt M4";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/dn01"; fast_pattern;
    http.user_agent;
    content:"Mozilla/5.0"; startswith;
    content:"WindowsPowerShell/"; distance:0;
    http.connection;
    content:"Keep-Alive";
    reference:md5,6ece95df231083c37ecf9a39c324e2bb;
    reference:url,bi.zone/eng/expertise/blog/red-wolf-vnov-shpionit-za-kommercheskimi-organizatsiyami/;
    reference:url,www.facct.ru/blog/redcurl-2023/;
    classtype:trojan-activity;
    sid:2047958; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2023_09_07, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Red_Wolf, tag RedCurl, updated_at 2023_09_08, reviewed_at 2023_09_07;
    target:src_ip;
)