|
进程 | Windows | 1470 次查看 |
|---|---|---|
|
||
在WIN 9X下一些黑客工具利用了未公开的API函数实现了隐藏自身,不在任务列表中出现的功能,要把它们找出来,同样也需要用到未公开的TOOLHELP32系列函数。因操作系统的不同NT下遍历进程则用PSAPI函数来实现,下面给出完整实列。 Process.h //---------------------------- #ifndef Unit1H #define Unit1H //---------------------------- #include #include #include #include #define TH32CS_SNAPPROCESS 0x00000002 //快照进程 #define PROCESS_HANDLE_NAME 255 //--------------------------------------------------------------------------- typedef struct tagPROCESSENTRY32 //自定义TOOLHELP32结构 { DWORD dwSize; DWORD cntUsage; DWORD th32ProcessID; //进程ID DWORD th32DefaultHeapID; DWORD th32ModuleID; DWORD cntThreads; DWORD th32ParentProcessID; LONG pcPriClassBase; DWORD dwFlags; TCHAR szExeFile[MAX_PATH]; //进程文件名 } PROCESSENTRY32; typedef PROCESSENTRY32 * LPPROCESSENTRY32; //以下定义要从KERENL32.DLL中取出的TOOLHELP32函数的函数指针 HANDLE (WINAPI *CreateToolhelp32Snapshot)(DWORD dwFlags,DWORD th32PD); BOOL (WINAPI *Process32First)(HANDLE hSnapshot,LPPROCESSENTRY32 pe); BOOL (WINAPI *Process32Next)(HANDLE hSnapshot,LPPROCESSENTRY32 pe); //以下定义要从PSAPI.DLL中取出函数的函数指针 BOOL (WINAPI *EnumProcesses)(DWORD* lpidProcess,DWORD cb,DWORD *cbNeeded); DWORD (WINAPI *GetModuleFileNameExA)(HANDLE hProcess,HMODULE hModule,LPTSTR lpstrFileName,DWORD nSize); class TForm1 : public TForm { __published: // IDE-managed Components TButton *FindAllProcessFileName; TListBox *ListBox1; void __fastcall FindAllProcessFileNameClick(TObject *Sender); void __fastcall FormResize(TObject *Sender); void __fastcall Button1Click(TObject *Sender); void __fastcall ListBox1Click(TObject *Sender); private: // User declarations public: // User declarations __fastcall TForm1(TComponent* Owner); }; //--------------------------------------------------------------------------- extern PACKAGE TForm1 *Form1; //--------------------------------------------------------------------------- #endif Process.cpp //--------------------------------------------------------------------------- #include #pragma hdrstop #include "Unit1.h" //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma resource "*.dfm" TForm1 *Form1; //定义变量 HANDLE process[255]; PROCESSENTRY32 p32; DWORD process_ids[255]; DWORD num_processes; TCHAR file_name[MAX_PATH]; TCHAR class_name[MAX_PATH]; unsigned i; //--------------------------------------------------------------------------- //初始化TOOLHELP32 BOOL InitToolHelp32() { //动态调用 HINSTANCE DLLinst=LoadLibrary("KERNEL32.DLL"); if(DLLinst) { //取各函数在KERNEL32中的地址 CreateToolhelp32Snapshot=(HANDLE(WINAPI *)(DWORD dwFlags,DWORD th32PD)) GetProcAddress(DLLinst,"CreateToolhelp32Snapshot"); Process32First=(BOOL(WINAPI *)(HANDLE hSnapshot,LPPROCESSENTRY32 pe)) GetProcAddress(DLLinst,"Process32First"); Process32Next=(BOOL(WINAPI *)(HANDLE hSnapshot,LPPROCESSENTRY32 pe)) GetProcAddress(DLLinst,"Process32Next"); if((!(UINT)CreateToolhelp32Snapshot)||(!(UINT)Process32First)||(!(UINT)Process32Next)) return FALSE; else return TRUE; } return FALSE; } //初始化PSAPI BOOL InitPSAPI() { HINSTANCE PSAPI=LoadLibrary("PSAPI.DLL"); if(NULL==PSAPI) return FALSE; EnumProcesses=(BOOL(WINAPI *)(DWORD* lpidProcess,DWORD cb,DWORD *cbNeeded)) GetProcAddress(PSAPI,"EnumProcesses"); GetModuleFileNameExA=(DWORD(WINAPI *)(HANDLE hProcess,HMODULE hModule,LPTSTR lpstrFileName,DWORD nSize)) GetProcAddress(PSAPI,"GetModuleFileNameExA"); if(NULL == EnumProcesses||NULL == GetModuleFileName) return FALSE; else return TRUE; } __fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner) { } //--------------------------------------------------------------------------- void __fastcall TForm1::FindAllProcessFileNameClick(TObject *Sender) { OSVERSIONINFO osinfo; osinfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); //取当前操作系统类型 if(GetVersionEx(&osinfo)) { switch(osinfo.dwPlatformId) { //当前操作系统是WIN9X case VER_PLATFORM_WIN32_WINDOWS: if(InitToolHelp32()) { ListBox1->Clear(); p32.dwSize=sizeof(PROCESSENTRY32); //初始化TOOLHELP32快照 HANDLE pName=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,NULL); //开始查找 BOOL Next=Process32First(pName,&p32); i=0; //遍历进程 while(Next) { //显示进程 ListBox1->Items->Add(p32.szExeFile); //根据进程ID获取句并 process[i]=OpenProcess(PROCESS_TERMINATE,0,p32.th32ProcessID); //继续查找 Next=Process32Next(pName,&p32); i++; } CloseHandle(pName); } break; //当前操作系统是NT case VER_PLATFORM_WIN32_NT: if(InitPSAPI()) { ListBox1->Clear(); //获取当前进程个数 EnumProcesses(process_ids,sizeof(process_ids),&num_processes); //遍历进程 for(i=0; i { //根据进程ID获取句并 process[i]=OpenProcess(PROCESS_QUERY_INFORMATION|PROCESS_VM_READ ,0,process_ids[i]); //通过句并获取进程文件名 if(GetModuleFileNameExA(process[i],NULL,file_name,sizeof(file_name))) ListBox1->Items->Add(file_name); } } break; } } } //--------------------------------------------------------------------------- void __fastcall TForm1::ListBox1Click(TObject *Sender) { int iCount; iCount=ListBox1->ItemIndex; ListBox1->Hint=ListBox1->Items->Strings[iCount]; } //--------------------------------------------------------------------------- else ShowMessage("初始化TOOLHELP32失败"); } |
||