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📄 四种枚举进程的方法.html

📁 这篇文章介绍了4种枚举进程的方法,*_*
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    <td style="font-size: 12pt; color: rgb(255, 102, 0);" align="center" height="32">枚举本地-远程NT系统进程</td>
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<font id="font_word" style="font-size: 14px; font-family: 宋体,Verdana,Arial,Helvetica,sans-serif;">作者:eyas <br><br>以下所说的都不是新技术,也不是新方法,偶只是收集,总结。好久以前写的,一直没好意思贴出来。让各位见笑了。<br>-------------------------------------------------------------------------------------------------------<br>  <br><br>首先说明本文并没有什么新的技术,只是做一些归纳总结吧。在这过程中参考了部分书籍和网上的一些资料,加上自己的一些理解,列举枚举本地/远程NT系统进程的的几种方法,希望对大家有些帮助。<br><br><br> &nbsp;
&nbsp;Windows2000中有个工具taskmgr.exe就可以比较详细的查看当前系统进程信息,但是那是Windows
GUI程序,有时候是不是觉得命令行下的东西更方便呢?其实已经有不少命令行下的枚举系统进程的工具了,M$的Resource
Kit中好象也有,但去了解他们是怎么实现的,自己动手做出来,是不是更有意思呢:)<br><br><br> &nbsp;&nbsp;进程通常被定义为一个正在运行的程序的实例,它由两部分组成:<br><br><br> &nbsp;&nbsp;&lt;1&gt;操作系统用来管理进程的内核对象。内核对象也是系统用来存放关于进程的统计信息的地方。<br><br><br> &nbsp;&nbsp;&lt;2&gt;地址空间。它包含所有可执行模块或DLL模块的代码和数据。它还包含动态内存分配的空间,如线程的堆栈和堆分配空间。<br><br><br> &nbsp;&nbsp;枚举系统进程的实现方法大概有四种,其中有一种可以用来枚举远程NT系统的进程,前提是有远程系统的管理员权限。<br><br><br>&lt;&lt;第一部分:调用PSAPI函数枚举系统进程&gt;&gt;<br><br><br> 
 M$的Windows NT开发小组开发了自己Process
Status函数,包含在PSAPI.DLL文件中,这些函数只能在高于NT4.0以后的版本中使用。PSAPI一共有14个函数[实际
PSAPI.DLL输出函数有19个,但其中有5个函数有两个版本,分别是ANSI和Unicode版本],通过调用这些函数,我们可以很方便的取得系统
进程的所有信息,例如进程名、进程ID、父进程ID、进程优先级、映射到进程空间的模块列表等等。为了方便起见,以下的例子程序只获取进程的名字和ID。<br><br><br>  简单的程序如下:<br><br><br>/*************************************************************************<br><br><br>Module:ps.c<br><br><br>说明:调用PSAPI函数枚举系统进程名和ID,Only for NT/2000<br><br><br>*************************************************************************/<br><br><br>#include &lt;windows.h&gt;<br><br><br>#include &lt;stdio.h&gt;<br><br><br>#include "psapi.h"<br><br><br>#pragma comment(lib,"psapi.lib")<br><br><br> <br><br><br>void PrintProcessNameAndID( DWORD processID )<br><br><br>{<br><br><br>  char szProcessName[MAX_PATH] = "unknown";<br><br><br>  //取得进程的句柄<br><br><br>  HANDLE hProcess = OpenProcess( PROCESS_QUERY_INFORMATION |<br><br><br>                  PROCESS_VM_READ,<br><br><br>         &nbsp;&nbsp;        FALSE, processID );<br><br><br>  //取得进程名称<br><br><br>  if ( hProcess )<br><br><br>  {<br><br><br>    HMODULE hMod;<br><br><br>    DWORD cbNeeded;<br><br><br>    if ( EnumProcessModules( hProcess, &amp;hMod, sizeof(hMod), &amp;cbNeeded) )<br><br><br>     &nbsp;&nbsp;GetModuleBaseName( hProcess, hMod, szProcessName, sizeof(szProcessName) );<br><br><br>  }<br><br><br>  //回显进程名称和ID<br><br><br>  printf( "\n%-20s%-20d", szProcessName, processID );<br><br><br>  CloseHandle( hProcess );<br><br><br>}<br><br><br> <br><br><br>void main( )<br><br><br>{<br><br><br>  DWORD aProcesses[1024], cbNeeded, cProcesses;<br><br><br>  unsigned int i;<br><br><br>  //枚举系统进程ID列表<br><br><br>  if ( !EnumProcesses( aProcesses, sizeof(aProcesses), &amp;cbNeeded ) )<br><br><br>    return;<br><br><br>  // Calculate how many process identifiers were returned.<br><br><br>  //计算进程数量<br><br><br>  cProcesses = cbNeeded / sizeof(DWORD);<br><br><br>  // 输出每个进程的名称和ID<br><br><br>  for ( i = 0; i &lt; cProcesses; i++ )<br><br><br>   &nbsp;&nbsp;PrintProcessNameAndID( aProcesses[i] );<br><br><br>  return;<br><br><br>}<br><br><br>基
于PSAPI,shotgun写了个比较完整的命令行下内存进程/模块查看器,可以显示内存中所有的进程及进程调用的所有模块文件(DLL),可以用来协
助程序、DLL的调试,也可以用来查找DLL木马和后门。有兴趣的读者可以从http:
//www.patching.net/shotgun/ps.zip下载,压缩包包含C++源代码。<br><br><br> <br><br><br>&lt;&lt;第二部分:调用ToolHelp API枚举本地系统进程&gt;&gt;<br><br><br> &nbsp;
&nbsp;在第一部分提到的PSAPI函数只能枚举NT系统的进程,在Windows9x环境下我们可以通过调用ToolHelp
API函数来达到枚举系统进程的目的。M$的Windows NT开发小组因为不喜欢ToolHelp函数,所以没有将这些函数添加给Windows
NT,所以他们开发了自己的Process
Status函数,就是第一部分提到的PSAPI了。但是后来M$已经将ToolHelp函数添加给了Windows
2000。ToolHelp共有12个函数,通过调用这些函数可以方面的取得本地系统进程的详细信息,以下这个简单的例子只调用了三个函数,获取我们所需
要系统进程名字和进程ID。程序如下:<br><br><br>/**********************************************************************<br><br><br>Module:ps.c<br><br><br>说明:调用ToolHelp函数枚举本地系统进程名和ID,Only for 9x/2000<br><br><br>**********************************************************************/<br><br><br>#include &lt;windows.h&gt;<br><br><br>#include &lt;tlhelp32.h&gt;<br><br><br>#include &lt;stdio.h&gt;<br><br><br>int main()<br><br><br>{<br><br><br> &nbsp;&nbsp;HANDLE     hProcessSnap = NULL;<br><br><br>  PROCESSENTRY32 pe32   = {0};<br><br><br>  hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);<br><br><br>  if (hProcessSnap == (HANDLE)-1)<br><br><br>  {<br><br><br>   &nbsp;&nbsp;printf("\nCreateToolhelp32Snapshot() failed:%d",GetLastError());<br><br><br>    return 1;<br><br><br>  }<br><br><br>  pe32.dwSize = sizeof(PROCESSENTRY32);<br><br><br> &nbsp;&nbsp;printf("\nProcessName     ProcessID");<br><br><br>  if (Process32First(hProcessSnap, &amp;pe32))<br><br><br>  {<br><br><br>    do<br><br><br>    {<br><br><br>     &nbsp;&nbsp;printf("\n%-20s%d",pe32.szExeFile,pe32.th32ProcessID);<br><br><br>    }<br><br><br>    while (Process32Next(hProcessSnap, &amp;pe32));<br><br><br>  }<br><br><br>  else<br><br><br>  {<br><br><br>   &nbsp;&nbsp;printf("\nProcess32Firstt() failed:%d",GetLastError());<br><br><br>  }<br><br><br>  CloseHandle (hProcessSnap);<br><br><br>  return 0;<br><br><br>}<br><br><br> <br><br><br>&lt;&lt;第三部分:调用NTDLL.DLL中未公开API枚举本地系统进程&gt;&gt;<br><br><br>   第一部分和第二部分说的是调用MS公开的API来枚举系统进程,在NTDLL.DLL中其实有一个未公开API,也可以用来枚举系统进程。此方法是从别处看来的,我可没这本事自己发现哦,出处记不清楚了,好像是pwdump2 中的源代码中的一部分吧。<br><br><br>    OK!那个未公开API就是NtQuerySystemInformation,使用方法如下,以下代码是从pwdump2中修改了一点点而来的:<br><br><br>////////////////////////////////////////////////////////////////////////////////////////////////<br><br><br>#include &lt;windows.h&gt;<br><br><br>#include &lt;stdio.h&gt;<br><br><br>#include &lt;stdlib.h&gt;<br><br><br> <br><br><br>typedef unsigned long NTSTATUS;<br><br><br> <br><br><br>typedef unsigned short USHORT;<br><br><br>typedef unsigned long ULONG;<br><br><br>typedef unsigned long DWORD;<br><br><br>typedef long LONG;<br><br><br> <br><br><br>typedef __int64 LONGLONG;<br><br><br> <br><br><br>typedef struct {<br><br><br>  USHORT Length;<br><br><br>  USHORT MaxLen;<br><br><br>  USHORT *Buffer;<br><br><br>} UNICODE_STRING;<br><br><br> <br><br><br>struct process_info {<br><br><br>  ULONG NextEntryDelta;<br><br><br>  ULONG ThreadCount;<br><br><br>  ULONG Reserved1[6];<br><br><br>  LARGE_INTEGER CreateTime;<br><br><br>  LARGE_INTEGER UserTime;<br><br><br>  LARGE_INTEGER KernelTime;<br><br><br>  UNICODE_STRING ProcessName;<br><br><br>  ULONG BasePriority;<br><br><br>  ULONG ProcessId;<br><br><br>};<br><br><br> <br><br><br>typedef NTSTATUS (__stdcall *NtQuerySystemInformation1)(<br><br><br>    IN ULONG SysInfoClass,<br><br><br>       &nbsp;&nbsp;IN OUT PVOID SystemInformation,<br><br><br>       &nbsp;&nbsp;IN ULONG SystemInformationLength,<br><br><br>       &nbsp;&nbsp;OUT PULONG RetLen<br><br><br>       &nbsp;&nbsp;);<br><br><br>int main()<br><br><br>{<br><br><br>  HINSTANCE hNtDll;<br><br><br>  NtQuerySystemInformation1 NtQuerySystemInformation;<br><br><br>  NTSTATUS rc;<br><br><br>  ULONG ulNeed = 0;<br><br><br>  void *buf = NULL;<br><br><br>  size_t len = 0;<br><br><br>  struct process_info *p ;<br><br><br>  int done;<br><br><br> <br><br><br>  hNtDll = LoadLibrary ("NTDLL");<br><br><br>  if (!hNtDll)<br><br><br>    return 0;<br><br><br>  NtQuerySystemInformation = (NtQuerySystemInformation1)GetProcAddress (hNtDll,<br><br><br>                           "NtQuerySystemInformation");<br><br><br>    if (!NtQuerySystemInformation)<br><br><br>     &nbsp;&nbsp;return 0;<br><br><br> <br><br><br>  do {<br><br><br>    len += 0x1000;<br><br><br>    buf = realloc (buf, len);<br><br><br>    if (!buf)<br><br><br>  &nbsp;&nbsp;   return 0;<br><br><br>    rc = NtQuerySystemInformation (5, buf, len, &amp;ulNeed);<br><br><br>  } while (rc == 0xc0000004); // STATUS_INFO_LEN_MISMATCH<br><br><br> <br><br><br>  if (rc &lt;0) {<br><br><br>    free (buf);<br><br><br>    return 0;<br><br><br>  }<br><br><br> <br><br><br> &nbsp;&nbsp;printf("\nProcessName     ProcessID");<br><br><br> <br><br><br>  p = (struct process_info *)buf;<br><br><br>  done = 0;<br><br><br> <br><br><br>  while (!done) {<br><br><br>    if ((p-&gt;ProcessName.Buffer != 0))<br><br><br>    {<br><br><br>     &nbsp;&nbsp;printf("\n%-20S%d",p-&gt;ProcessName.Buffer,p-&gt;ProcessId);<br><br><br>    }<br><br><br>    done = p-&gt;NextEntryDelta == 0;<br><br><br>    p = (struct process_info *)(((char *)p) + p-&gt;NextEntryDelta);<br><br><br>  }<br><br><br>  free (buf);<br><br><br>  FreeLibrary (hNtDll);<br><br><br>  return 0;<br><br><br>}<br><br><br> <br><br><br>&lt;&lt;第四部分:从PDH中取得本地/远程系统进程信息&gt;&gt;<br><br><br> &nbsp;&nbsp;前面说的三种方法都只能枚举本地的系统进程,如何枚举远程系统的进程呢?目前我只知道从PDH中取得进程信息。<br><br><br> &nbsp;
&nbsp;OK!我先简单的说说PDH是什么东西,hoho~难的偶也不会。PDH是英文Performance Data
Helper的缩写,Windows NT一直在更新这个称为Performance
Data的数据库,这个数据库包含了大量的信息,例如CPU使用率,内存使用率,系统进程信息等等一大堆有用的信息,可以通过注册表函数来访问。注意哦,
Windows
9x中并没有配置这个数据库。但是,这个数据库中的信息布局很复杂,很多人并不愿意使用它,包括我。而且刚开始的时候,它也没有自己特定的函数,只能通过
现有的注册表函数来操作。后来,为了使该数据库的使用变得容易,MS开发了一组Performance Data
Helper函数,包含在PDH.DLL文件中。<br><br><br>    Windows 2000默认是允许远程注册表操作的,所以我们就可以通过连接远程系统的注册表,从它的PDH中取得我们所需要的系统进程信息了,当然这需要远程系统的Admin权限。<br><br><br>    OK!我们下面所举的例子是直接利用注册表函数来从本地/远程系统的PDH数据库中取得我们所需要的数据的,我们并没有利用PDH API。<br><br><br>    程序代码如下:<br><br><br>/**************************************************************************<br><br><br>Module:ps.c<br><br><br>Author:mikeblas@nwlink.com<br><br><br>Modify:ey4s&lt;ey4s@21cn.com&gt;<br><br><br>Http://www.ey4s.org<br><br><br>Date:2001/6/23<br><br><br>**************************************************************************/<br><br><br>#include &lt;stdio.h&gt;<br><br><br>#include &lt;windows.h&gt;<br><br><br>#include &lt;Winnetwk.h&gt;<br><br><br> <br><br><br>#define INITIAL_SIZE   &nbsp;&nbsp;51200<br><br><br>#define EXTEND_SIZE&nbsp;&nbsp;    12800<br><br><br>#define REGKEY_PERF     "software\\microsoft\\windows nt\\currentversion\\perflib"<br><br><br>#define REGSUBKEY_COUNTERS "Counters"<br><br><br>#define PROCESS_COUNTER   "process"<br><br><br>#define PROCESSID_COUNTER  "id process"<br><br><br>#define UNKNOWN_TASK   &nbsp;&nbsp;"unknown"<br><br><br>#define MaxProcessNum      52//最大进程数量<br><br><br> <br><br><br>#pragma comment(lib,"mpr.lib")<br><br><br> <br><br><br>typedef struct ProcessInfo<br><br><br>{<br><br><br>    char ProcessName[128];<br><br><br>    DWORD dwProcessID;<br><br><br>}pi;<br><br><br> <br><br><br>void banner();<br><br><br>int ConnIPC(char *,char *,char *);<br><br><br>DWORD GetProcessInfo(pi *,char *,char *,char *);<br><br><br> <br><br><br>int main(int argc,char **argv)<br><br><br>{<br><br><br>    int i,iRet;<br><br><br>    pi TaskList[MaxProcessNum];<br><br><br>    banner();<br><br><br>    if(argc==1)<br><br><br>    {<br><br><br>       iRet=GetProcessInfo(TaskList,NULL,NULL,NULL);<br><br><br>       printf("\nProcess Info for [LOCAL]:");<br><br><br>    }<br><br><br>    else if(argc==4)<br><br><br>    {<br><br><br>       iRet=GetProcessInfo(TaskList,argv[1],argv[2],argv[3]);<br><br><br>       printf("\nProcess Info for [%s]:",argv[1]);<br><br><br>    }<br><br><br>    else<br><br><br>    {<br><br><br>       printf("\nUsage:%s &lt;ip&gt; &lt;UserName&gt; &lt;Pass&gt;",argv[0]);<br><br><br>      &nbsp;&nbsp;return 1;<br><br><br>    }<br><br><br>    if(iRet&gt;0)   <br><br><br>       for(i=0,printf("\nProcessName     ProcessID");<br><br><br>      &nbsp;&nbsp;    i&lt;iRet;<br><br><br>      &nbsp;&nbsp;    printf("\n%-20s %d",TaskList[i].ProcessName,TaskList[i].dwProcessID),i++);  <br><br><br>    return 0;<br><br><br>}<br><br><br>DWORD GetProcessInfo(pi *ProList,char *ip,char *user,char *pass)<br><br><br>{<br><br><br>  DWORD rc,dwType,dwSize,i,dwProcessIdTitle,dwProcessIdCounter,dwRet=-1;<br><br><br> &nbsp;&nbsp;HKEY             hKeyNames;<br><br><br> &nbsp;&nbsp;LPSTR      &nbsp;&nbsp;     buf = NULL,p,p2;<br><br><br> &nbsp;&nbsp;CHAR             szSubKey[1024],szProcessName[MAX_PATH];<br><br><br> &nbsp;&nbsp;PPERF_DATA_BLOCK       pPerf;<br><br><br> &nbsp;&nbsp;PPERF_OBJECT_TYPE     &nbsp;&nbsp;pObj;<br><br><br>  PPERF_INSTANCE_DEFINITION &nbsp;&nbsp;pInst;<br><br><br> &nbsp;&nbsp;PPERF_COUNTER_BLOCK    &nbsp;&nbsp;pCounter;<br><br><br> &nbsp;&nbsp;PPERF_COUNTER_DEFINITION   pCounterDef;<br><br><br>    HKEY     &nbsp;&nbsp;ghPerfKey =NULL, // get perf data from this key<br><br><br>        &nbsp;&nbsp;ghMachineKey = NULL; // get title index from this key<br><br><br>    BOOL bRemote=FALSE;<br><br><br>  //<br><br><br>  // Look for the list of counters.&nbsp;&nbsp;Always use the neutral<br><br><br>  // English version, regardless of the local language. We<br><br><br>  // are looking for some particular keys, and we are always<br><br><br>  // going to do our looking in English.&nbsp;&nbsp;We are not going<br><br><br>  // to show the user the counter names, so there is no need<br><br><br>  // to go find the corresponding name in the local language.<br><br><br>  //<br><br><br>    __try<br><br><br>    {<br><br><br>       if((ip)&amp;&amp;(user)&amp;&amp;(pass))<br><br><br>      &nbsp;&nbsp;{<br><br><br>      &nbsp;&nbsp;    if(ConnIPC(ip,user,pass)!=0)<br><br><br>           {<br><br><br>              printf("\nConnect to %s failed.",ip);<br><br><br>              __leave;<br><br><br>           }<br><br><br>      &nbsp;&nbsp;    else<br><br><br>              bRemote=TRUE;<br><br><br>      &nbsp;&nbsp;}<br><br><br>      &nbsp;&nbsp;//连接本地or远程注册表<br><br><br>       if(RegConnectRegistry(ip,HKEY_PERFORMANCE_DATA,<br><br><br>      &nbsp;&nbsp;    &amp;ghPerfKey)!=ERROR_SUCCESS)<br><br><br>      &nbsp;&nbsp;{<br><br><br>      &nbsp;&nbsp;    printf("\nRegConnectRegistry() 1 failed:%d",GetLastError());<br><br><br>      &nbsp;&nbsp;    __leave;<br><br><br>      &nbsp;&nbsp;}<br><br><br>       if(RegConnectRegistry(ip,HKEY_LOCAL_MACHINE,<br><br><br>      &nbsp;&nbsp;    &amp;ghMachineKey)!=ERROR_SUCCESS)<br><br><br>      &nbsp;&nbsp;{<br><br><br>      &nbsp;&nbsp;    printf("\nRegConnectRegistry() 2 failed:%d",GetLastError());<br><br><br>      &nbsp;&nbsp;    __leave;<br><br><br>      &nbsp;&nbsp;}<br><br><br> <br><br><br>       sprintf( szSubKey, "%s\\%03x", REGKEY_PERF,MAKELANGID( LANG_ENGLISH, SUBLANG_NEUTRAL));<br><br><br>       if(RegOpenKeyEx(ghMachineKey,szSubKey,0,KEY_READ,&amp;hKeyNames)!=ERROR_SUCCESS)<br><br><br>      &nbsp;&nbsp;    __leave;<br><br><br>      &nbsp;&nbsp;// 从counter names取得需要的缓冲区大小<br><br><br>       if(RegQueryValueEx(hKeyNames,REGSUBKEY_COUNTERS,NULL,&amp;dwType,NULL,&amp;dwSize)!= ERROR_SUCCESS)<br><br><br>      &nbsp;&nbsp;    __leave;<br><br><br>      &nbsp;&nbsp;//分配内存<br><br><br>      &nbsp;&nbsp;buf = (LPSTR) malloc( dwSize );<br><br><br>      &nbsp;&nbsp;if (buf == NULL)<br><br><br>      &nbsp;&nbsp;    __leave;<br><br><br>       memset( buf, 0, dwSize );<br><br><br> <br><br><br>      &nbsp;&nbsp;// read the counter names from the registry<br><br><br>       if(RegQueryValueEx(ghPerfKey,REGSUBKEY_COUNTERS,NULL,&amp;dwType,(LPBYTE) buf,&amp;dwSize)!= ERROR_SUCCESS)<br><br><br>      &nbsp;&nbsp;    __leave;<br><br><br>      &nbsp;&nbsp;//<br><br><br>      &nbsp;&nbsp;// now loop thru the counter names looking for the following counters:<br><br><br>      &nbsp;&nbsp;//<br><br><br>      &nbsp;&nbsp;//   1.&nbsp;&nbsp;"Process"     process name<br><br><br>      &nbsp;&nbsp;//   2. "ID Process"    process id<br><br><br>      &nbsp;&nbsp;//<br><br><br>      &nbsp;&nbsp;// the buffer contains multiple null terminated strings and then<br><br><br>      &nbsp;&nbsp;// finally null terminated at the end. the strings are in pairs of<br><br><br>      &nbsp;&nbsp;// counter number and counter name.<br><br><br>      &nbsp;&nbsp;//<br><br><br>      &nbsp;&nbsp;p = buf;<br><br><br>      &nbsp;&nbsp;while (*p)<br><br><br>      &nbsp;&nbsp;{<br><br><br>           if (p&gt;buf)<br><br><br>             for( p2=p-2; isdigit(*p2); p2--) ;<br><br><br>           if (stricmp(p, PROCESS_COUNTER) == 0)<br><br><br>           {<br><br><br>              // look backwards for the counter number<br><br><br>             for( p2=p-2; isdigit(*p2); p2--) ;<br><br><br>              strcpy( szSubKey, p2+1 );<br><br><br>           }<br><br><br>      &nbsp;&nbsp;    else if (stricmp(p, PROCESSID_COUNTER) == 0)<br><br><br>           {<br><br><br>              // look backwards for the counter number<br><br><br>             for( p2=p-2; isdigit(*p2); p2--) ;<br><br><br>              dwProcessIdTitle = atol( p2+1 );<br><br><br>           }<br><br><br>           // next string<br><br><br>           p += (strlen(p) + 1);<br><br><br>      &nbsp;&nbsp;}<br><br><br>      &nbsp;&nbsp;// free the counter names buffer<br><br><br>       free( buf );<br><br><br>      &nbsp;&nbsp;// allocate the initial buffer for the performance data<br><br><br>       dwSize = INITIAL_SIZE;<br><br><br>      &nbsp;&nbsp;buf = (LPSTR) malloc( dwSize );<br><br><br> <br><br><br>      &nbsp;&nbsp;while (TRUE)<br><br><br>      &nbsp;&nbsp;{<br><br><br>           if (buf == NULL)<br><br><br>              __leave;<br><br><br>      &nbsp;&nbsp;    memset( buf, 0, dwSize );<br><br><br>      &nbsp;&nbsp;    rc=RegQueryValueEx(ghPerfKey,szSubKey,NULL,&amp;dwType,(LPBYTE) buf,&amp;dwSize);<br><br><br>      &nbsp;&nbsp;    pPerf = (PPERF_DATA_BLOCK) buf;<br><br><br>           // check for success and valid perf data block signature<br><br><br>           if ((rc == ERROR_SUCCESS) &amp;&amp;<br><br><br>                &nbsp;&nbsp;(dwSize &gt; 0) &amp;&amp;<br><br><br>                 (pPerf)-&gt;Signature[0] == (WCHAR)'P' &amp;&amp;<br><br><br>                 (pPerf)-&gt;Signature[1] == (WCHAR)'E' &amp;&amp;<br><br><br>                 (pPerf)-&gt;Signature[2] == (WCHAR)'R' &amp;&amp;<br><br><br>                 (pPerf)-&gt;Signature[3] == (WCHAR)'F' )<br><br><br>              break;<br><br><br>           // if buffer is not big enough, reallocate and try again<br><br><br>           if (rc == ERROR_MORE_DATA)<br><br><br>           {<br><br><br>              dwSize += EXTEND_SIZE;<br><br><br>              buf = (LPSTR) realloc( buf, dwSize );<br><br><br>           }<br><br><br>      &nbsp;&nbsp;    else __leave;<br><br><br>      &nbsp;&nbsp;}<br><br><br>      &nbsp;&nbsp;// set the perf_object_type pointer<br><br><br>      &nbsp;&nbsp;pObj = (PPERF_OBJECT_TYPE) ((DWORD)pPerf + pPerf-&gt;HeaderLength);<br><br><br>      &nbsp;&nbsp;//loop thru the performance counter definition records looking<br><br><br>      &nbsp;&nbsp;//for the process id counter and then save its offset<br><br><br>       pCounterDef = (PPERF_COUNTER_DEFINITION) ((DWORD)pObj + pObj-&gt;HeaderLength);<br><br><br>      &nbsp;&nbsp;for (i=0; i&lt;(DWORD)pObj-&gt;NumCounters; i++)<br><br><br>      &nbsp;&nbsp;{<br><br><br>           if (pCounterDef-&gt;CounterNameTitleIndex == dwProcessIdTitle)<br><br><br>           {<br><br><br>              dwProcessIdCounter = pCounterDef-&gt;CounterOffset;<br><br><br>              break;<br><br><br>           }<br><br><br>      &nbsp;&nbsp;    pCounterDef++;<br><br><br>      &nbsp;&nbsp;}<br><br><br> <br><br><br>      &nbsp;&nbsp;pInst = (PPERF_INSTANCE_DEFINITION) ((DWORD)pObj + pObj-&gt;DefinitionLength);<br><br><br>      &nbsp;&nbsp;// loop thru the performance instance data extracting each process name<br><br><br>      &nbsp;&nbsp;// and process id<br><br><br>      &nbsp;&nbsp;for (i=0; i &lt; (DWORD)pObj-&gt;NumInstances-1 &amp;&amp; i&lt;MaxProcessNum; i++)<br><br><br>      &nbsp;&nbsp;{<br><br><br>           // pointer to the process name<br><br><br>           p = (LPSTR) ((DWORD)pInst + pInst-&gt;NameOffset);<br><br><br>           // convert it to ascii<br><br><br>           rc = WideCharToMultiByte( CP_ACP,0,(LPCWSTR)p,-1,szProcessName,sizeof(szProcessName),NULL,NULL);<br><br><br>           // if we cant convert the string then use a default value<br><br><br>           if (!rc) strcpy( ProList[i].ProcessName, UNKNOWN_TASK );<br><br><br>      &nbsp;&nbsp;    else strncpy(ProList[i].ProcessName, szProcessName,sizeof(ProList[i].ProcessName)-1);<br><br><br>           // get the process id<br><br><br>      &nbsp;&nbsp;    pCounter = (PPERF_COUNTER_BLOCK) ((DWORD)pInst + pInst-&gt;ByteLength);<br><br><br>      &nbsp;&nbsp;    ProList[i].dwProcessID = *((LPDWORD) ((DWORD)pCounter + dwProcessIdCounter));<br><br><br>           // next process<br><br><br>      &nbsp;&nbsp;    pInst = (PPERF_INSTANCE_DEFINITION) ((DWORD)pCounter + pCounter-&gt;ByteLength);<br><br><br>      &nbsp;&nbsp;}<br><br><br>       dwRet=i;<br><br><br>    }//end of try<br><br><br>    __finally<br><br><br>    {<br><br><br>      &nbsp;&nbsp;if (buf) free( buf );<br><br><br>       RegCloseKey( hKeyNames );<br><br><br>       RegCloseKey( HKEY_PERFORMANCE_DATA );<br><br><br>       if(bRemote)<br><br><br>      &nbsp;&nbsp;{<br><br><br>      &nbsp;&nbsp;    char tmp[52],tmp2[96];<br><br><br>      &nbsp;&nbsp;    strncpy(tmp,ip,sizeof(tmp)-1);<br><br><br>      &nbsp;&nbsp;    wsprintf(tmp2,"\\\\%s\\ipc$",tmp);<br><br><br>      &nbsp;&nbsp;    WNetCancelConnection2(tmp2,CONNECT_UPDATE_PROFILE,TRUE);<br><br><br>      &nbsp;&nbsp;}<br><br><br>    }<br><br><br>    return dwRet;<br><br><br>}<br><br><br>///////////////////////////////////////////////////////////////////////////////////////<br><br><br>int ConnIPC(char *RemoteName,char *User,char *Pass)<br><br><br>{<br><br><br>    NETRESOURCE nr;<br><br><br>    char RN[50]="\\\\";<br><br><br> <br><br><br>    strncat(RN,RemoteName,sizeof(RN)-11);<br><br><br>    strcat(RN,"\\ipc$");<br><br><br> <br><br><br>    nr.dwType=RESOURCETYPE_ANY;<br><br><br>    nr.lpLocalName=NULL;<br><br><br>    nr.lpRemoteName=RN;<br><br><br>    nr.lpProvider=NULL;<br><br><br> <br><br><br>    if(WNetAddConnection2(&amp;nr,Pass,User,FALSE)==NO_ERROR)<br><br><br>      &nbsp;&nbsp;return 0;<br><br><br>    else<br><br><br>      &nbsp;&nbsp;return 1;<br><br><br>}<br><br><br>///////////////////////////////////////////////////////////////////////////////////////<br><br><br>void banner()<br><br><br>{<br><br><br>    printf("\nPsList ==&gt;Local and Remote process list"<br><br><br>      &nbsp;&nbsp;    "\nPower by ey4s&lt;ey4s@21cn.com&gt;"<br><br><br>      &nbsp;&nbsp;    "\nhttp://www.ey4s.org"<br><br><br>      &nbsp;&nbsp;    "\n2001/6/22\n");<br><br><br>}<br><br><br>/////////////////////////////////////////////////////////////////////////////////////<br><br><br>   程序在Windows2000、VC++6.0环境下编译,运行良好。注意哦,远程机器要允许IPC连接和远程操作注册表才可以哦,并且需要Admin权限,编译好的程序在我的主页http://www.ey4s.org有下载。</font><p></p><font id="font_word" style="font-size: 14px; font-family: 宋体,Verdana,Arial,Helvetica,sans-serif;">          
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