在Delphi中利用CreateRemoteThread远程注入例子 | ||
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花了一个下午翻了MSDN,写了这个例子,为了安全,我用Delphi建了个什么也没有作的程序prjzzhost.exe,将它用作被注入的宿主进程. 写了一个TestDll.Dll,里面只有一个Log函数,用来在文件Test.Txt中输出信息.最重要的一个程序project1.exe是用来注入的. 测试环境: windows server 2003 + delphi 7.0 程序很简单,高手就不用看了.废话不说了,看代码吧! 测试用的TestDll.Dll源代码(它将被注入到prjzzhost.exe中去): ![]() library TestDll; uses SysUtils, System, windows, Classes; procedure Log( s : PChar);stdcall; var F : TextFile; begin assignfile(f,'Test.txt'); if fileexists('Test.txt') then append(f) else rewrite(f); writeln(f,s); closefile(f); end; procedure DllEntryPoint(dwReason:DWord); begin case dwReason of DLL_PROCESS_ATTACH: Log('dll process Attach'); DLL_PROCESS_DETACH: Log('dll process Detach'); DLL_THREAD_ATTACH: Log('dll thread Attach'); DLL_THREAD_DETACH: Log('dll thread Detach'); end; end; exports Log; begin DllProc := @DllEntryPoint; DllEntryPoint(DLL_PROCESS_ATTACH); end. 被注入的宿主进程prjzzhost.exe(它什么也没有作,好无辜哦:),这里就不给出代码了,因为太简单了,哈哈. 最后,最重要的来了: project1.exe的源代码: ![]() unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls,tlhelp32; type TLog = procedure(s : PChar);stdcall; TServiceMain = procedure(argc : Integer; VAR argv : pchar);stdcall; EDLLLoadError = class(Exception); TForm1 = class(TForm) Button3: TButton; procedure Button3Click(Sender: TObject); private { Private declarations } public { Public declarations } end; var Form1: TForm1; implementation {$R *.dfm} { 列举进程 } procedure GetMyProcessID(const AFilename: string; const PathMatch: Boolean; var ProcessID: DWORD); var lppe: TProcessEntry32; SsHandle: Thandle; FoundAProc, FoundOK: boolean; begin ProcessID :=0; { 创建系统快照 } SsHandle := CreateToolHelp32SnapShot(TH32CS_SnapProcess, 0); { 取得快照中的第一个进程 } { 一定要设置结构的大小,否则将返回False } lppe.dwSize := sizeof(TProcessEntry32); FoundAProc := Process32First(Sshandle, lppe); while FoundAProc do begin { 进行匹配 } if PathMatch then FoundOK := AnsiStricomp(lppe.szExefile, PChar(AFilename)) = 0 else FoundOK := AnsiStricomp(PChar(ExtractFilename(lppe.szExefile)), PChar(ExtractFilename(AFilename))) = 0; if FoundOK then begin ProcessID := lppe.th32ProcessID; break; end; { 未找到,继续下一个进程 } FoundAProc := Process32Next(SsHandle, lppe); end; CloseHandle(SsHandle); end; { 设置权限 } function EnabledDebugPrivilege(const Enabled : Boolean) : Boolean; var hTk : THandle; { 打开令牌句柄 } rtnTemp : Dword; { 调整权限时返回的值 } TokenPri : TOKEN_PRIVILEGES; const SE_DEBUG = 'SeDebugPrivilege'; { 查询值 } begin Result := False; { 获取进程令牌句柄,设置权限 } if (OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES,hTk)) then begin TokenPri.PrivilegeCount := 1; { 获取Luid值 } LookupPrivilegeValue(nil,SE_DEBUG,TokenPri.Privileges[0].Luid); if Enabled then TokenPri.Privileges[0].Attributes := SE_PRIVILEGE_ENABLED else TokenPri.Privileges[0].Attributes := 0; rtnTemp := 0; { 设置新的权限 } AdjustTokenPrivileges(hTk,False,TokenPri,sizeof(TokenPri),nil,rtnTemp); Result := GetLastError = ERROR_SUCCESS; CloseHandle(hTk); end; end; { 调试函数 } procedure OutPutText(var CH:PChar); var FileHandle: TextFile; Begin AssignFile(FileHandle,'zztest.txt'); Append(FileHandle); Writeln(FileHandle,CH); Flush(FileHandle); CloseFile(FileHandle); END; { 注入远程进程 } function InjectTo(const Host, Guest: string; const PID: DWORD = 0): DWORD; var { 被注入的进程句柄,进程ID} hRemoteProcess: THandle; dwRemoteProcessId: DWORD; { 写入远程进程的内容大小 } memSize: DWORD; { 写入到远程进程后的地址 } pszLibFileRemote: Pointer; iReturnCode: Boolean; TempVar: DWORD; { 指向函数LoadLibraryW的地址 } pfnStartAddr: TFNThreadStartRoutine; { dll全路径,需要写到远程进程的内存中去 } pszLibAFilename: PwideChar; begin Result := 0; { 设置权限 } EnabledDebugPrivilege(True); { 为注入的dll文件路径分配内存大小,由于为WideChar,故要乘2 } Getmem(pszLibAFilename, Length(Guest) * 2 + 1); StringToWideChar(Guest, pszLibAFilename, Length(Guest) * 2 + 1); { 获取进程ID } if PID > 0 then dwRemoteProcessID := PID else GetMyProcessID(Host, False, dwRemoteProcessID); { 取得远程进程句柄,具有写入权限} hRemoteProcess := OpenProcess(PROCESS_CREATE_THREAD + {允许远程创建线程} PROCESS_VM_OPERATION + {允许远程VM操作} PROCESS_VM_WRITE, {允许远程VM写} FALSE, dwRemoteProcessId); { 用函数VirtualAllocex在远程进程分配空间,并用WriteProcessMemory中写入dll路径 } memSize := (1 + lstrlenW(pszLibAFilename)) * sizeof(WCHAR); pszLibFileRemote := PWIDESTRING(VirtualAllocEx(hRemoteProcess, nil, memSize, MEM_COMMIT, PAGE_READWRITE)); TempVar := 0; iReturnCode := WriteProcessMemory(hRemoteProcess, pszLibFileRemote, pszLibAFilename, memSize, TempVar); if iReturnCode then begin pfnStartAddr := GetProcAddress(GetModuleHandle('Kernel32'), 'LoadLibraryW'); TempVar := 0; { 在远程进程中启动dll } Result := CreateRemoteThread(hRemoteProcess, nil, 0, pfnStartAddr, pszLibFileRemote, 0, TempVar); end; { 释放内存空间 } Freemem(pszLibAFilename); end; { 测试 } procedure TForm1.Button3Click(Sender: TObject); begin InjectTo('prjzzhost.exe', extractfilepath(paramstr(0))+'TestDll.dll'); end; end. 代码中并没有考虑dll被载入后的善后处理,请不要使用系统进程进行测试,以免发生意外. |
在Delphi中利用CreateRemoteThread远程注入例子
最新推荐文章于 2018-09-11 15:35:52 发布