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原理是以獨(dú)占的方式打開(kāi)文件，再把文件句柄復(fù)制到另一個(gè)程序中去，達(dá)到本程序退出后目標(biāo)文件仍被打開(kāi)的目的 這是delphi代碼： program createfile; uses Windows, SysUtils; //提權(quán)函數(shù) procedure SetPrivilege; var TPPrev, TP: TTokenPrivileges; TokenHandle: THandle; dwRetLen: DWORD; lpLuid: TLargeInteger; begin OpenProcessToken(GetCurrentProcess, TOKEN_ALL_ACCESS, TokenHandle); if (LookupPrivilegeValue(nil, ’SeDebugPrivilege’, lpLuid)) then begin TP.PrivilegeCount := 1; TP.Privileges[0].Attributes := SE_PRIVILEGE_ENABLED; TP.Privileges[0].Luid := lpLuid; AdjustTokenPrivileges(TokenHandle, False, TP, SizeOf(TPPrev), TPPrev, dwRetLen); end; CloseHandle(TokenHandle); end; procedure OccupyFile(lpFileName: string); var hProcess, hFile, hTargetHandle: thandle; begin //打開(kāi)一個(gè)pid為４的進(jìn)程，只要是存在的進(jìn)程，都可以 hProcess := OpenProcess(PROCESS_DUP_HANDLE, FALSE, 4); if (hProcess = 0) then exit; //以獨(dú)占模式打開(kāi)目標(biāo)文件 hFile := CreateFileA(PChar(lpFileName), GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); if (hFile = INVALID_HANDLE_VALUE) then begin CloseHandle(hProcess); exit; end; //把文件句柄復(fù)制到pid=4的進(jìn)程中去，這樣，只要pid=4的進(jìn)程不退出，誰(shuí)也動(dòng)不了目標(biāo)文件 DuplicateHandle(GetCurrentProcess(), hFile, hProcess, @hTargetHandle, 0, FALSE, DUPLICATE_SAME_ACCESS or DUPLICATE_CLOSE_SOURCE); CloseHandle(hProcess); end; begin SetPrivilege; OccupyFile(’D:\Program Files\工具軟件\任務(wù)管理.exe’);//這是要保護(hù)的程序名 end. 以下是vc6.0代碼 //VC-ConsoleWithApi #include //提權(quán)函數(shù) void RaiseToDebugP() { HANDLE hToken; HANDLE hProcess = GetCurrentProcess(); if ( OpenProcessToken(hProcess, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken) ) { TOKEN_PRIVILEGES tkp; if ( LookupPrivilegeValue(NULL, SE_DEBUG_NAME, &tkp.Privileges[0].Luid) ) { tkp.PrivilegeCount = 1; tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; BOOL bREt = AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, NULL, 0) ; } CloseHandle(hToken); } } BOOL OccupyFile( LPCTSTR lpFileName ) { BOOL bRet; //提升自身權(quán)限 RaiseToDebugP(); //打開(kāi)一個(gè)pid為４的進(jìn)程，只要是存在的進(jìn)程，都可以 HANDLE hProcess = OpenProcess( PROCESS_DUP_HANDLE, FALSE, 4); // 4為system進(jìn)程號(hào) if ( hProcess == NULL ) { return FALSE; } HANDLE hFile; HANDLE hTargetHandle; //以獨(dú)占模式打開(kāi)目標(biāo)文件 hFile = CreateFile( lpFileName, GENERIC_READ, 0, NULL, OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL, NULL); if ( hFile == INVALID_HANDLE_VALUE ) { CloseHandle( hProcess ); return FALSE; } //把文件句柄復(fù)制到pid=4的進(jìn)程中去，這樣，只要pid=4的進(jìn)程不退出，誰(shuí)也動(dòng)不了目標(biāo)文件 bRet = DuplicateHandle( GetCurrentProcess(), hFile, hProcess, &hTargetHandle, 0, FALSE, DUPLICATE_SAME_ACCESS|DUPLICATE_CLOSE_SOURCE); CloseHandle( hProcess ); return bRet; } //入口函數(shù) int main() { OccupyFile("D:\\Program Files\\工具軟件\\任務(wù)管理.exe"); return 0; } |
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