杀掉本地进程其实很简单，取得进程ID后，调用OpenProcess函数打开进程句柄，然后调用TerminateProcess函数就可以杀掉进程了。有些情况下并不能直接打开进程句柄，例如WINLOGON等系统进程，因为权限不够。这个时候我们就得先提升自己的进程的权限了。提升权限过程也不复杂，先调用GetCurrentProcess函数取得当前进程的句柄，然后调用OpenProcessToken打开当前进程的访问令牌，接着调用LookupPrivilegeValue函数取得你想提升的权限的值，最后调用AdjustTokenPrivileges函数给当前进程的访问令牌增加权限就可以了。一般有了SeDebugPrivilege特权后，就可以杀掉除Idle外的所有进程了。
OK!那如何杀掉远程进程呢？说起来有点复杂，但其实也不难。
<1>与远程系统建立IPC连接
<2>在远程系统的系统目录admin$\system32中写入一个文件killsrv.exe
<3>调用函数OpenSCManager打开远程系统的Service Control Manager[SCM]
<4>调用函数CreateService在远程系统创建一个服务，服务指向的程序是在<2>中写入的程序killsrv.exe
<5>调用函数StartService启动刚才创建的服务，把想杀掉的进程的ID作为参数传递给它
<6>服务启动后，killsrv.exe运行，杀掉进程
<7>清场
嗯！这样看来，我们需要两个程序了。Killsrv.exe的源代码如下：
/***********************************************************************
Module:Killsrv.c
Date:2001/4/27
Author:ey4s<[email protected]>
Http://www.ey4s.org
***********************************************************************/
#include <stdio.h>
#include <windows.h>
#include "function.c"
#define ServiceName "PSKILL"
SERVICE_STATUS_HANDLE ssh;
SERVICE_STATUS ss;
/////////////////////////////////////////////////////////////////////////
void ServiceStopped(void)
{
ss.dwServiceType=SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS;
ss.dwCurrentState=SERVICE_STOPPED;
ss.dwControlsAccepted=SERVICE_ACCEPT_STOP;
ss.dwWin32ExitCode=NO_ERROR;
ss.dwCheckPoint=0;
ss.dwWaitHint=0;
SetServiceStatus(ssh,&ss);
return;
}
/////////////////////////////////////////////////////////////////////////
void ServicePaused(void)
{
ss.dwServiceType=SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS;
ss.dwCurrentState=SERVICE_PAUSED;
ss.dwControlsAccepted=SERVICE_ACCEPT_STOP;
ss.dwWin32ExitCode=NO_ERROR;
ss.dwCheckPoint=0;
ss.dwWaitHint=0;
SetServiceStatus(ssh,&ss);
return;
}
void ServiceRunning(void)
{
ss.dwServiceType=SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS;
ss.dwCurrentState=SERVICE_RUNNING;
ss.dwControlsAccepted=SERVICE_ACCEPT_STOP;
ss.dwWin32ExitCode=NO_ERROR;
ss.dwCheckPoint=0;
ss.dwWaitHint=0;
SetServiceStatus(ssh,&ss);
return;
}
/////////////////////////////////////////////////////////////////////////
void WINAPI servier_ctrl(DWORD Opcode)//服务控制程序
{
switch(Opcode)
{
case SERVICE_CONTROL_STOP://停止Service
ServiceStopped();
break;
case SERVICE_CONTROL_INTERROGATE:
SetServiceStatus(ssh,&ss);
break;
}
return;
}
//////////////////////////////////////////////////////////////////////////////
//杀进程成功设置服务状态为SERVICE_STOPPED
//失败设置服务状态为SERVICE_PAUSED
//
void WINAPI ServiceMain(DWORD dwArgc,LPTSTR *lpszArgv)
{
ssh=RegisterServiceCtrlHandler(ServiceName,servier_ctrl);
if(!ssh)
{
ServicePaused();
return;
}
ServiceRunning();
Sleep(100);
//注意，argv[0]为此程序名，argv[1]为pskill,参数需要递增1
//argv[2]=target,argv[3]=user,argv[4]=pwd,argv[5]=pid
if(KillPS(atoi(lpszArgv[5])))
ServiceStopped();
else
ServicePaused();
return;
}
/////////////////////////////////////////////////////////////////////////////
void main(DWORD dwArgc,LPTSTR *lpszArgv)
{
SERVICE_TABLE_ENTRY ste[2];
ste[0].lpServiceName=ServiceName;
ste[0].lpServiceProc=ServiceMain;
ste[1].lpServiceName=NULL;
ste[1].lpServiceProc=NULL;
StartServiceCtrlDispatcher(ste);
return;
}
/////////////////////////////////////////////////////////////////////////////
function.c中有两个函数，一个是提升权限的，一个是提供进程ID,杀进程的。代码如
下：
/***********************************************************************
Module:function.c
Date:2001/4/28
Author:ey4s<[email protected]>
Http://www.ey4s.org
***********************************************************************/
#include <windows.h>
////////////////////////////////////////////////////////////////////////////
BOOL SetPrivilege(HANDLE hToken,LPCTSTR lpszPrivilege,BOOL bEnablePrivilege)
{
TOKEN_PRIVILEGES tp;
LUID luid;
if(!LookupPrivilegeValue(NULL,lpszPrivilege,&luid))
{
printf("\nLookupPrivilegeValue error:%d", GetLastError() );
return FALSE;
}
tp.PrivilegeCount = 1;
tp.Privileges[0].Luid = luid;
if (bEnablePrivilege)
tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
else
tp.Privileges[0].Attributes = 0;
// Enable the privilege or disable all privileges.
AdjustTokenPrivileges(
hToken,
FALSE,
&tp,
sizeof(TOKEN_PRIVILEGES),
(PTOKEN_PRIVILEGES) NULL,
(PDWORD) NULL);
// Call GetLastError to determine whether the function succeeded.
if (GetLastError() != ERROR_SUCCESS)
{
printf("AdjustTokenPrivileges failed: %u\n", GetLastError() );
return FALSE;
}
return TRUE;
}
////////////////////////////////////////////////////////////////////////////
BOOL KillPS(DWORD id)
{
HANDLE hProcess=NULL,hProcessToken=NULL;
BOOL IsKilled=FALSE,bRet=FALSE;
__try
{
if(!OpenProcessToken(GetCurrentProcess(),TOKEN_ALL_ACCESS,&hProcessToken))
{
printf("\nOpen Current Process Token failed:%d",GetLastError());
__leave;
}
//printf("\nOpen Current Process Token ok!");
if(!SetPrivilege(hProcessToken,SE_DEBUG_NAME,TRUE))
{
__leave;
}
printf("\nSetPrivilege ok!");
if((hProcess=OpenProcess(PROCESS_ALL_ACCESS,FALSE,id))==NULL)
{
printf("\nOpen Process %d failed:%d",id,GetLastError());
__leave;
}
//printf("\nOpen Process %d ok!",id);
if(!TerminateProcess(hProcess,1))
{
printf("\nTerminateProcess failed:%d",GetLastError());
__leave;
}
IsKilled=TRUE;
}
__finally
{
if(hProcessToken!=NULL) CloseHandle(hProcessToken);
if(hProcess!=NULL) CloseHandle(hProcess);
}
return(IsKilled);
}
//////////////////////////////////////////////////////////////////////////////////////////////
OK!服务端的程序已经好了。接下来还需要一个客户端。如果通过在客户端运行的时候，把killsrv.exe COPY到远程系统上，那么就需要提供两个exe文件给用户，这样显得不是很专业，呵呵。不如我们就把killsrv.exe的二进制码作为buff保存在客户端吧，这样在运行的时候，我们直接把buff中的内容写过去，这样提供给用户一个exe文件就可以了。Pskill.c的源代码如下：
/*********************************************************************************************
ModulesKill.c
Create:2001/4/28
Modify:2001/6/23
Author:ey4s<[email protected]>
Http://www.ey4s.org
PsKill ==>Local and Remote process killer for windows 2k
**************************************************************************/
#include "ps.h"
#define EXE "killsrv.exe"
#define ServiceName "PSKILL"
#pragma comment(lib,"mpr.lib")
//////////////////////////////////////////////////////////////////////////
//定义全局变量
SERVICE_STATUS ssStatus;
SC_HANDLE hSCManager=NULL,hSCService=NULL;
BOOL bKilled=FALSE;
char szTarget[52]={0};
//////////////////////////////////////////////////////////////////////////
BOOL ConnIPC(char *,char *,char *);//建立IPC连接函数
BOOL InstallService(DWORD,LPTSTR *);//安装服务函数
BOOL WaitServiceStop();//等待服务停止函数
BOOL RemoveService();//删除服务函数
/////////////////////////////////////////////////////////////////////////
int main(DWORD dwArgc,LPTSTR *lpszArgv)
{
BOOL bRet=FALSE,bFile=FALSE;
char tmp[52]={0},RemoteFilePath[128]={0},
szUser[52]={0},szPass[52]={0};
HANDLE hFile=NULL;
DWORD i=0,dwIndex=0,dwWrite,dwSize=sizeof(exebuff);
//杀本地进程
if(dwArgc==2)
{
if(KillPS(atoi(lpszArgv[1])))
printf("\nLoacl Process %s have beed killed!",lpszArgv[1]);
else
printf("\nLoacl Process %s can't be killed!ErrorCode:%d",
lpszArgv[1],GetLastError());
return 0;
}
//用户输入错误
else if(dwArgc!=5)
{
printf("\nPSKILL ==>Local and Remote Process Killer"
"\nPower by ey4s<[email protected]>"
"\nhttp://www.ey4s.org 2001/6/23"
"\n\nUsage:%s <PID> <==Killed Local Process"
"\n %s <IP> <User> <PWD> <PID> <==Killed Remote Process\n",
lpszArgv[0],lpszArgv[0]);
return 1;
}
//杀远程机器进程
strncpy(szTarget,lpszArgv[1],sizeof(szTarget)-1);
strncpy(szUser,lpszArgv[2],sizeof(szUser)-1);
strncpy(szPass,lpszArgv[3],sizeof(szPass)-1);
//将在目标机器上创建的exe文件的路径
sprintf(RemoteFilePath,"\\\\%s\\admin$\\system32\\%s",szTarget,EXE);
__try
{
//与目标建立IPC连接
if(!ConnIPC(szTarget,szUser,szPass))
{
printf("\nConnect to %s failed:%d",szTarget,GetLastError());
return 1;
}
printf("\nConnect to %s success!",szTarget);
//在目标机器上创建exe文件
hFile=CreateFile(RemoteFilePath,GENERIC_ALL,FILE_SHARE_READ|FILE_SHARE_WRIT
E,
NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL);
if(hFile==INVALID_HANDLE_VALUE)
{
printf("\nCreate file %s failed:%d",RemoteFilePath,GetLastError());
__leave;
}
//写文件内容
while(dwSize>dwIndex)
{
if(!WriteFile(hFile,&exebuff[dwIndex],dwSize-dwIndex,&dwWrite,NULL))
{
printf("\nWrite file %s
failed:%d",RemoteFilePath,GetLastError());
__leave;
}
dwIndex+=dwWrite;
}
//关闭文件句柄
CloseHandle(hFile);
bFile=TRUE;
//安装服务
if(InstallService(dwArgc,lpszArgv))
{
//等待服务结束
if(WaitServiceStop())
{
//printf("\nService was stoped!");
}
else
{
//printf("\nService can't be stoped.Try to delete it.");
}
Sleep(500);
//删除服务
RemoveService();
}
}
__finally
{
//删除留下的文件
if(bFile) DeleteFile(RemoteFilePath);
//如果文件句柄没有关闭,关闭之~
if(hFile!=NULL) CloseHandle(hFile);
//Close Service handle
if(hSCService!=NULL) CloseServiceHandle(hSCService);
//Close the Service Control Manager handle
if(hSCManager!=NULL) CloseServiceHandle(hSCManager);
//断开ipc连接
wsprintf(tmp,"\\\\%s\\ipc$",szTarget);
WNetCancelConnection2(tmp,CONNECT_UPDATE_PROFILE,TRUE);
if(bKilled)
printf("\nProcess %s on %s have been
killed!\n",lpszArgv[4],lpszArgv[1]);
else
printf("\nProcess %s on %s can't be
killed!\n",lpszArgv[4],lpszArgv[1]);
}
return 0;
}
//////////////////////////////////////////////////////////////////////////
BOOL ConnIPC(char *RemoteName,char *User,char *Pass)
{
NETRESOURCE nr;
char RN[50]="\\\\";
strcat(RN,RemoteName);
strcat(RN,"\\ipc$");
nr.dwType=RESOURCETYPE_ANY;
nr.lpLocalName=NULL;
nr.lpRemoteName=RN;
nr.lpProvider=NULL;
if(WNetAddConnection2(&nr,Pass,User,FALSE)==NO_ERROR)
return TRUE;
else
return FALSE;
}
/////////////////////////////////////////////////////////////////////////
BOOL InstallService(DWORD dwArgc,LPTSTR *lpszArgv)
{
BOOL bRet=FALSE;
__try
{
//Open Service Control Manager on Local or Remote machine
hSCManager=OpenSCManager(szTarget,NULL,SC_MANAGER_ALL_ACCESS);
if(hSCManager==NULL)
{
printf("\nOpen Service Control Manage failed:%d",GetLastError());
__leave;
}
//printf("\nOpen Service Control Manage ok!");
//Create Service
hSCService=CreateService(hSCManager,// handle to SCM database
ServiceName,// name of service to start
ServiceName,// display name
SERVICE_ALL_ACCESS,// type of access to service
SERVICE_WIN32_OWN_PROCESS,// type of service
SERVICE_AUTO_START,// when to start service
SERVICE_ERROR_IGNORE,// severity of service
failure
EXE,// name of binary file
NULL,// name of load ordering group
NULL,// tag identifier
NULL,// array of dependency names
NULL,// account name
NULL);// account password
//create service failed
if(hSCService==NULL)
{
//如果服务已经存在，那么则打开
if(GetLastError()==ERROR_SERVICE_EXISTS)
{
//printf("\nService %s Already exists",ServiceName);
//open service
hSCService = OpenService(hSCManager, ServiceName,
SERVICE_ALL_ACCESS);
if(hSCService==NULL)
{
printf("\nOpen Service failed:%d",GetLastError());
__leave;
}
//printf("\nOpen Service %s ok!",ServiceName);
}
else
{
printf("\nCreateService failed:%d",GetLastError());
__leave;
}
}
//create service ok
else
{
//printf("\nCreate Service %s ok!",ServiceName);
}
// 起动服务
if ( StartService(hSCService,dwArgc,lpszArgv))
{
//printf("\nStarting %s.", ServiceName);
Sleep(20);//时间最好不要超过100ms
while( QueryServiceStatus(hSCService, &ssStatus ) )
{
if ( ssStatus.dwCurrentState == SERVICE_START_PENDING)
{
printf(".");
Sleep(20);
}
else
break;
}
if ( ssStatus.dwCurrentState != SERVICE_RUNNING )
printf("\n%s failed to run:%d",ServiceName,GetLastError());
}
else if(GetLastError()==ERROR_SERVICE_ALREADY_RUNNING)
{
//printf("\nService %s already running.",ServiceName);
}
else
{
printf("\nStart Service %s failed:%d",ServiceName,GetLastError());
__leave;
}
bRet=TRUE;
}//enf of try
__finally
{
return bRet;
}
return bRet;
}
/////////////////////////////////////////////////////////////////////////
BOOL WaitServiceStop(void)
{
BOOL bRet=FALSE;
//printf("\nWait Service stoped");
while(1)
{
Sleep(100);
if(!QueryServiceStatus(hSCService, &ssStatus))
{
printf("\nQueryServiceStatus failed:%d",GetLastError());
break;
}
if(ssStatus.dwCurrentState==SERVICE_STOPPED)
{
bKilled=TRUE;
bRet=TRUE;
break;
}
if(ssStatus.dwCurrentState==SERVICE_PAUSED)
{
//停止服务
bRet=ControlService(hSCService,SERVICE_CONTROL_STOP,NULL);
break;
}
else
{
//printf(".");
continue;
}
}
return bRet;
}
/////////////////////////////////////////////////////////////////////////
BOOL RemoveService(void)
{
//Delete Service
if(!DeleteService(hSCService))
{
printf("\nDeleteService failed:%d",GetLastError());
return FALSE;
}
//printf("\nDelete Service ok!");
return TRUE;
}
/////////////////////////////////////////////////////////////////////////
其中ps.h头文件的内容如下：
/////////////////////////////////////////////////////////////////////////
#include <stdio.h>
#include <windows.h>
#include "function.c"
unsigned char exebuff[]="这里存放的是killsrv.exe的二进制码";
/////////////////////////////////////////////////////////////////////////////////////////////
以上程序在Windows2000、VC++6.0环境下编译，测试还行。编译好的pskill.exe在我的主页http://www.ey4s.org有下载。其实我们变通一下，改变一下killsrv.exe的内容，例如启动一个cmd.exe什么的，呵呵，这样有了admin权限，并且可以建立IPC连接的时候，不就可以在远程运行命令了吗。象www.sysinternals.com出的psexec.exe和小榕的ntcmd.exe原理都和这差不多的。也许有人会问了，怎么得到程序的二进制码啊？呵呵，随便用一个二进制编辑器，例如UltraEdit等。但是好像不能把二进制码保存为文本，类似这样"\xAB\x77\xCD"，所以我们就不能直接用了。懒的去找这样的工具了，自己写个简单的吧，代码如下[我够意思吧~_*]：
/*******************************************************************************************
Module:exe2hex.c
Author:ey4s<[email protected]>
Http://www.ey4s.org
Date:2001/6/23
****************************************************************************/
#include <stdio.h>
#include <windows.h>
int main(int argc,char **argv)
{
HANDLE hFile;
DWORD dwSize,dwRead,dwIndex=0,i;
unsigned char *lpBuff=NULL;
__try
{
if(argc!=2)
{
printf("\nUsage: %s <File>",argv[0]);
__leave;
}
hFile=CreateFile(argv[1],GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FI
LE_ATTRIBUTE_NORMAL,NULL);
if(hFile==INVALID_HANDLE_VALUE)
{
printf("\nOpen file %s failed:%d",argv[1],GetLastError());
__leave;
}
dwSize=GetFileSize(hFile,NULL);
if(dwSize==INVALID_FILE_SIZE)
{
printf("\nGet file size failed:%d",GetLastError());
__leave;
}
lpBuff=(unsigned char *)malloc(dwSize);
if(!lpBuff)
{
printf("\nmalloc failed:%d",GetLastError());
__leave;
}
while(dwSize>dwIndex)
{
if(!ReadFile(hFile,&lpBuff[dwIndex],dwSize-dwIndex,&dwRead,NULL))
{
printf("\nRead file failed:%d",GetLastError());
__leave;
}
dwIndex+=dwRead;
}
for(i=0;i<dwSize;i++)
{
if((i%16)==0)
printf("\"\n\"");
printf("\\x%.2X",lpBuff[i]);
}
}//end of try
__finally
{
if(lpBuff) free(lpBuff);
CloseHandle(hFile);
}
return 0;
}
这样运行：exe2hex killsrv.exe，就把killsrv.exe的二进制码打印到屏幕上了，你可以把它重定向到一个txt文件中去，如exe2hex killsrv.exe >killsrv.txt，然后copy到ps.h中去就OK了
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