一、 實現(xiàn)原理:
首先通過CreateToolhelp32Snapshot函數(shù)創(chuàng)建一個進程的快照,然后通過調(diào)用Process32First使用快照返回的句柄對進程進行遍歷,相關(guān)的信息存放在PROCESSENTRY32結(jié)構(gòu)類型的實例中,通過調(diào)用內(nèi)部的一個函數(shù)GetProcessModule,獲取對應(yīng)的進程的模塊名稱,然后通過對進程地址空間信息的讀取,從而獲取相應(yīng)的線程的ID等的信息。
二、主要實現(xiàn)代碼:
獲取進程地址空間內(nèi)的相關(guān)信息:
hProcess = OpenProcess (PROCESS_ALL_ACCESS, FALSE, pe32.th32ProcessID);
pfGetProcessMemoryInfo(hProcess,pmc,sizeof(pmc));
獲取進程的模塊信息:
BOOL CEmuteFileDlg::GetProcessModule(DWORD dwPID, DWORD dwModuleID, LPMODULEENTRY32 lpMe32, DWORD cbMe32) { BOOL bRet = FALSE; BOOL bFound = FALSE; HANDLE hModuleSnap = NULL; MODULEENTRY32 me32 = {0};
// Take a snapshot of all modules in the specified process.
hModuleSnap = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, dwPID);
if (hModuleSnap == INVALID_HANDLE_VALUE) return (FALSE);
// Fill the size of the structure before using it.
me32.dwSize = sizeof(MODULEENTRY32);
// Walk the module list of the process, and find the module of // interest. Then copy the information to the buffer pointed // to by lpMe32 so that it can be returned to the caller.
if (Module32First(hModuleSnap, &me32)) { do { if (me32.th32ModuleID == dwModuleID) { CopyMemory (lpMe32, &me32, cbMe32); bFound = TRUE; } } while (!bFound && Module32Next(hModuleSnap, &me32));
bRet = bFound; // if this sets bRet to FALSE, dwModuleID // no longer exists in specified process } else bRet = FALSE; // could not walk module list
// Do not forget to clean up the snapshot object.
CloseHandle (hModuleSnap);
return (bRet); }
三、提高權(quán)限:
BOOL EnableDebugPrivilege()
{ HANDLE hToken; BOOL fOk=FALSE; if(OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES,&hToken)) { TOKEN_PRIVILEGES tp; tp.PrivilegeCount=1; if(!LookupPrivilegeValue(NULL,SE_DEBUG_NAME,&tp.Privileges[0].Luid)) printf("Can’t lookup privilege value.\n"); tp.Privileges[0].Attributes=SE_PRIVILEGE_ENABLED; if(!AdjustTokenPrivileges(hToken,FALSE,&tp,sizeof(tp),NULL,NULL)) printf("Can’t adjust privilege value.\n"); fOk=(GetLastError()==ERROR_SUCCESS); CloseHandle(hToken); } return fOk; }
四、后記:
我感覺信息獲取的不夠完整,比如說,我很想知道怎么才能獲取進程的線程的模塊名稱,不知道那位大俠不吝賜教!
monkeycd@163.com
thanx!
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