ET MALWARE Win32/Redyms.A Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Redyms.A Checkin";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.uri;
    content:".php"; offset:6; depth:7;
    http.header;
    content:".net|0d 0a|Content-Length|3a 20|128|0d 0a|"; fast_pattern;
    http.start;
    pcre:"/^POST \/(?P<filep>[a-z]{5,8})\.php HTTP.+?\r\nHost\x3a\x20(?P=filep)[a-z]+?\.net\r\n/s";
    http.header_names;
    content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a|Content-Length|0d 0a|Cache-Control|0d 0a 0d 0a|"; depth:53; endswith;
    classtype:command-and-control;
    sid:2016759; rev:4;
    metadata:created_at 2013_04_16, malware_family Win32_Redyms_A, signature_severity Major, updated_at 2020_11_05;
)