以下代码实现获取某个进程所属的用户名，比如RavMonD.exe的进程PID是1300，那么修改这条语句就OK
GetProcessUser(1300,&bs);它的获取结果是：SYSTEM。
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#include <windows.h>
#include <iostream.h>
#include <COMDEF.H>
#include <stdio.h>
typedef struct _UNICODE_STRING {
USHORT Length;
USHORT MaximumLength;
PWSTR Buffer;
} UNICODE_STRING, *PUNICODE_STRING;
//SystemProcessInformation
typedef struct _SYSTEM_PROCESS_INFORMATION
{
DWORD dwNextEntryOffset;
DWORD dwNumberOfThreads;
LARGE_INTEGER qSpareLi1;
LARGE_INTEGER qSpareLi2;
LARGE_INTEGER qSpareLi3;
LARGE_INTEGER qCreateTime;
LARGE_INTEGER qUserTime;
LARGE_INTEGER qKernelTime;
UNICODE_STRING ImageName;
int nBasePriority;
DWORD dwProcessId;
DWORD dwInheritedFromUniqueProcessId;
DWORD dwHandleCount;
DWORD dwSessionId;
ULONG dwSpareUl3;
SIZE_T tPeakVirtualSize;
SIZE_T tVirtualSize;
DWORD dwPageFaultCount;
DWORD dwPeakWorkingSetSize;
DWORD dwWorkingSetSize;
SIZE_T tQuotaPeakPagedPoolUsage;
SIZE_T tQuotaPagedPoolUsage;
SIZE_T tQuotaPeakNonPagedPoolUsage;
SIZE_T tQuotaNonPagedPoolUsage;
SIZE_T tPagefileUsage;
SIZE_T tPeakPagefileUsage;
SIZE_T tPrivatePageCount;
LARGE_INTEGER qReadOperationCount;
LARGE_INTEGER qWriteOperationCount;
LARGE_INTEGER qOtherOperationCount;
LARGE_INTEGER qReadTransferCount;
LARGE_INTEGER qWriteTransferCount;
LARGE_INTEGER qOtherTransferCount;
}SYSTEM_PROCESS_INFORMATION;
/*----------------------------------------------------
函数说明： 动态加载动库文件
输入参数： pDllName 库文件名称，pProcName导出函数名字
输出参数： 无
返回值 ： 返回函数的的地址
----------------------------------------------------*/
VOID *GetDllProc(CHAR * pDllName, CHAR *pProcName)
{
HMODULE hMod;
hMod = LoadLibraryA(pDllName);
if(hMod == NULL)
return NULL;
return GetProcAddress(hMod, pProcName);
}
//宏定义函数的指针
typedef LONG (WINAPI *Fun_NtQuerySystemInformation) (int SystemInformationClass,
OUT PVOID SystemInformation,
IN ULONG SystemInformationLength,
OUT ULONG * pReturnLength OPTIONAL);
typedef BYTE (WINAPI *Fun_WinStationGetProcessSid)(HANDLE hServer,DWORD ProcessId ,
FILETIME ProcessStartTime, PBYTE pProcessUserSid , PDWORD dwSidSize);
typedef VOID (WINAPI *Fun_CachedGetUserFromSid)( PSID pSid , PWCHAR pUserName,PULONG cbUserName);
#define STATUS_INFO_LENGTH_MISMATCH ((LONG)0xC0000004L)
#define SystemProcessInformation 5
/*------------------------------------------------------------------
函数说明： 获取系统进程的信息
输入参数： SYSTEM_PROCESS_INFORMATION
输出参数： 无
--------------------------------------------------------------------*/
BOOL GetSysProcInfo(SYSTEM_PROCESS_INFORMATION ** ppSysProcInfo)
{
Fun_NtQuerySystemInformation _NtQuerySystemInformation;
_NtQuerySystemInformation = (Fun_NtQuerySystemInformation)::GetDllProc("NTDLL.DLL", "NtQuerySystemInformation");
if(_NtQuerySystemInformation == NULL)
return FALSE;
DWORD dwSize = 1024*1024;
VOID * pBuf = NULL;
LONG lRetVal;
for(;;)
{
if(pBuf)
free(pBuf);
pBuf = (VOID *)malloc(dwSize);
lRetVal = _NtQuerySystemInformation(SystemProcessInformation,
pBuf, dwSize, NULL);
if(STATUS_INFO_LENGTH_MISMATCH != lRetVal)
break;
dwSize *= 2;
}
if(lRetVal == 0)
{
*ppSysProcInfo = (SYSTEM_PROCESS_INFORMATION *)pBuf;
return TRUE;
}
free(pBuf);
return FALSE;
}
BOOL GetProcessUser(DWORD dwPid, _bstr_t *pbStrUser)
{ Fun_WinStationGetProcessSid _WinStationGetProcessSid;
Fun_CachedGetUserFromSid _CachedGetUserFromSid;
_WinStationGetProcessSid = (Fun_WinStationGetProcessSid)
GetDllProc("Winsta.dll", "WinStationGetProcessSid");
_CachedGetUserFromSid = (Fun_CachedGetUserFromSid)
GetDllProc("utildll.dll", "CachedGetUserFromSid");
if(_WinStationGetProcessSid == NULL || _CachedGetUserFromSid == NULL)
return FALSE;
BYTE cRetVal;
FILETIME ftStartTime;
DWORD dwSize;
BYTE * pSid;
BOOL bRetVal, bFind;
SYSTEM_PROCESS_INFORMATION * pProcInfo, * pCurProcInfo;
bRetVal = GetSysProcInfo(&pProcInfo);
if(bRetVal == FALSE || pProcInfo == NULL)
return FALSE;
bFind = FALSE;
pCurProcInfo = pProcInfo;
for(;;)
{
if(pCurProcInfo->dwProcessId == dwPid)
{
memcpy(&ftStartTime, &pCurProcInfo->qCreateTime, sizeof(ftStartTime));
bFind = TRUE;
break;
}
if(pCurProcInfo->dwNextEntryOffset == 0)
break;
pCurProcInfo = (SYSTEM_PROCESS_INFORMATION *)((BYTE *)pCurProcInfo +
pCurProcInfo->dwNextEntryOffset);
}
if(bFind == FALSE)
{
free(pProcInfo);
return FALSE;
}
cRetVal = _WinStationGetProcessSid(NULL, dwPid, ftStartTime, NULL, &dwSize);
if(cRetVal != 0)
return FALSE;
pSid = new BYTE[dwSize];
cRetVal = _WinStationGetProcessSid(NULL, dwPid, ftStartTime, pSid, &dwSize);
if(cRetVal == 0)
{
delete [] pSid;
return FALSE;
}
WCHAR szUserName[1024];
dwSize = 1024;
_CachedGetUserFromSid(pSid, szUserName, &dwSize);
delete [] pSid;
if(dwSize == 0)
return FALSE;
*pbStrUser = szUserName;
return TRUE;
}
int main()
{
char ch[256] = {0};
_bstr_t bs;
memcpy(&bs,ch,sizeof(bs));
GetProcessUser(1300,&bs); //第一个参数写的是你的进程ID
printf(bs);
printf("/n");
return 0;
}
