ET HUNTING Possible WikiLoader Activity (GET)

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET HUNTING Possible WikiLoader Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?id="; fast_pattern;
    pcre:"/^[0-9]{1,2}$/R";
    http.header_names;
    content:"|0d 0a|Accept|0d 0a|Cookie|0d 0a|"; startswith;
    content:!"Referer";
    http.user_agent;
    content:"Intel Mac OS X";
    reference:url,www.proofpoint.com/us/blog/threat-insight/out-sandbox-wikiloader-digs-sophisticated-evasion;
    reference:url,app.any.run/tasks/f98aa2c5-deae-408a-8e86-530e7961dfb6/;
    reference:md5,f69b31ef39887d6e04d4e972d69bd450;
    classtype:trojan-activity;
    sid:2046971; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_07_31, deployment Perimeter, deployment SSLDecrypt, performance_impact Significant, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_07_31;
    target:src_ip;
)