ET MALWARE Known Malicious Doc Downloading Payload Dec 06 2016

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Known Malicious Doc Downloading Payload Dec 06 2016";
    flow:to_server,established;
    urilen:<12;
    http.method;
    content:"GET";
    http.uri;
    pcre:"/^\/(?=[a-z]{0,9}?\d)(?=\d{0,9}?[a-z])[a-z0-9]{4,10}$/";
    http.user_agent;
    content:"Firefox"; fast_pattern;
    http.accept;
    content:"*/*"; depth:3; endswith;
    http.header_names;
    content:"|0d 0a|Accept|0d 0a|Accept-Language|0d 0a|User-Agent|0d 0a|Accept-Encoding|0d 0a|Host|0d 0a|"; depth:62;
    content:!"Cookie|0d 0a|";
    content:!"Referer|0d 0a|";
    classtype:trojan-activity;
    sid:2023583; rev:6;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_12_06, deployment Perimeter, malware_family Downloader, malware_family Locky_JS, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_11_05;
)