ET MALWARE Nemucod JS Downloader June 12 2017

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Nemucod JS Downloader June 12 2017";
    flow:established,to_server;
    http.uri;
    pcre:"/\/[A-Za-z0-9]{5,7}\?+[A-Za-z0-9]{6,12}=[A-Za-z0-9]{6,12}$/";
    http.header;
    content:"Accept|3a 20 2a 2f 2a 0d 0a|Accept-Language|3a|"; depth:29;
    http.user_agent;
    content:"Firefox/51.0"; fast_pattern;
    http.header_names;
    content:!"Referer|0d 0a|";
    content:!"Cookie|0d 0a|";
    classtype:trojan-activity;
    sid:2024380; rev:6;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_06_13, deployment Perimeter, malware_family Nemucod, performance_impact Low, confidence Medium, signature_severity Major, tag WS_JS_Downloader, updated_at 2024_05_29;
)