ET MALWARE Executable Download Purporting to be JavaScript likely 2nd stage Infection

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Executable Download Purporting to be JavaScript likely 2nd stage Infection";
    flow:established,from_server;
    http.stat_code;
    content:"200";
    http.content_type;
    content:"application/x-javascript"; nocase; startswith;
    file.data;
    content:"MZ"; within:2;
    byte_jump:4,58,relative,little;
    content:"PE|00 00|"; distance:-64; within:4; fast_pattern;
    classtype:trojan-activity;
    sid:2013352; rev:5;
    metadata:created_at 2011_08_04, signature_severity Major, updated_at 2020_07_27;
)