ET MALWARE W32/SecVerif.Downloader Initial Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE W32/SecVerif.Downloader Initial Checkin";
    flow:established,to_server;
    http.uri;
    content:"/atp.txt"; fast_pattern;
    http.header;
    content:"Accept-Language|3A| de-at";
    http.user_agent;
    content:"Mozilla/4.0 (compatible|3B| Win32|3B| WinHttp.WinHttpRequest.5)";
    reference:url,anubis.iseclab.org/?action=result&task_id=19f379c075627c7b44d0a0db154394f63;
    classtype:command-and-control;
    sid:2016329; rev:5;
    metadata:created_at 2013_02_01, signature_severity Major, updated_at 2020_04_23;
)