內容摘要:: dnf漫游槍手加點地下城與勇士sf,
地下城與勇士sf,[原創][一]過掉DNF游戲保護,僅供學習研究.不得用于非法途徑., 【原創】【一】過掉DNF游戲保護，僅供學習研究。不得用于非法途徑。由于我的C用的比較少，所以大部分都用的匯編，部分地方用匯編寫不是很方便，所以我用的C，,[原創][一]過掉DNF游戲保護,僅供學習研究.不得用于非法途徑.地下城與勇士sf 。
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【原創】【一】過掉DNF游戲保護，僅供學習研究。不得用于非法途徑。由于我的C用的比較少，所以大部分都用的匯編，部分地方用匯編寫不是很方便，所以我用的C，由于只是學習，所以內核地址我沒有計算都是硬編碼的。過DNF主要分為三步，也許我的思路不太正確，反正可以OD調試，下斷。 程序沒怎么修邊幅，因為只是測試，所以一般都沒有寫更改內核后的恢復，不過不妨礙使用。 第一步，這也是最起碼的，你必須要能夠打開游戲進程和線程，能夠開打進程和線程后不被檢測到 第二步，能夠讀寫進村內存 第三步，能夠用OD附加游戲進程 第四步，能夠下硬件斷點而不被檢測 跳過NtReadVirtualMemory，NtWriteVirtualMemory函數頭的鉤子 代碼: #include<ntddk.h> typedef struct _SERVICE_DESCRIPTOR_TABLE { PVOID ServiceTableBase; PULONG ServiceCounterTableBase; ULONG NumberOfService; ULONG ParamTableBase; }SERVICE_DESCRIPTOR_TABLE,*PSERVICE_DESCRIPTOR_TAB LE; //由于KeServiceDescriptorTable只有一項,這里就簡單點了 extern PSERVICE_DESCRIPTOR_TABLE KeServiceDescriptorTable;//KeServiceDescriptorTabl e為導出函數 ///////////////////////////////////// VOID Hook(); VOID Unhook(); VOID OnUnload(IN PDRIVER_OBJECT DriverObject); ////////////////////////////////////// ULONG JmpAddress;//跳轉到NtOpenProcess里的地址 ULONG JmpAddress1;//跳轉到NtOpenProcess里的地址 ULONG OldServiceAddress;//原來NtOpenProcess的服務地下城的勇士任務地址 ULONG OldServiceAddress1;//原來NtOpenProcess的服務地址 ////////////////////////////////////// __declspec(naked) NTSTATUS __stdcall MyNtReadVirtualMemory(HANDLE ProcessHandle, PVOID BaseAddress, PVOID Buffer, ULONG NumberOfBytesToRead, PULONG NumberOfBytesReaded) { //跳過去 __asm { push 0x1c push 804eb560h //共十個字節 jmp [JmpAddress] } } __declspec(naked) NTSTATUS __stdcall MyNtWriteVirtualMemory(HANDLE ProcessHandle, PVOID BaseAddress, PVOID Buffer, ULONG NumberOfBytesToWrite, PULONG NumberOfBytesReaded) { //跳過去 __asm { push 0x1c push 804eb560h //共十個字節 jmp [JmpAddress1] } } ////////////////////////////////////////////////// / NTSTATUS DriverEntry(IN PDRIVER_OBJECT DriverObject,PUNICODE_STRING RegistryPath) { DriverObject->DriverUnload = OnUnload; DbgPrint("Unhooker load"); Hook(); return STATUS_SUCCESS; } ////////////////////////////////////////////////// /// VOID OnUnload(IN PDRIVER_OBJECT DriverObject) { DbgPrint("Unhooker unload!"); Unhook(); } ////////////////////////////////////////////////// /// VOID Hook() { ULONG Address, Address1; Address = (ULONG)KeServiceDescriptorTable->ServiceTableBase 0xBA * 4;//0x7A為NtOpenProcess服務ID Address1 = (ULONG)KeServiceDescriptorTable->ServiceTableBase 0x115 * 4;//0x7A為NtOpenProcess服務ID DbgPrint("Address:0xX",Address); OldServiceAddress = *(ULONG*)Address;//保存原來NtOpenProcess的地址 OldServiceAddress1 = *(ULONG*)Address1;//保存原來NtOpenProcess的地址 DbgPrint("OldServiceAddress:0xX",OldServiceAddr ess); DbgPrint("OldServiceAddress1:0xX",OldServiceAdd ress1); DbgPrint("MyNtOpenProcess:0xX",MyNtReadVirtualM emory); DbgPrint("MyNtOpenProcess:0xX",MyNtWriteVirtual Memory); JmpAddress = (ULONG)0x805b528a 7; //跳轉到NtOpenProcess函數頭＋10的地方，這樣在其前面寫的JMP都失效了 JmpAddress1 = (ULONG)0x805b5394 7; DbgPrint("JmpAddress:0xX",JmpAddress); DbgPrint("JmpAddress1:0xX",JmpAddress1); __asm { //去掉內存保護 cli mov eax,cr0 and eax,not 10000h mov cr0,eax } *((ULONG*)Address) = (ULONG)MyNtReadVirtualMemory;//HOOK SSDT *((ULONG*)Address1) = (ULONG)MyNtWriteVirtualMemory; __asm { //恢復內存保護 mov eax,cr0 or eax,10000h mov cr0,eax sti } } ////////////////////////////////////////////////// //// VOID Unhook() { ULONG Address, Address1; Address = (ULONG)KeServiceDescriptorTable->ServiceTableBase 0xBA * 4;//查找SSDT Address1 = (ULONG)KeServiceDescriptorTable->ServiceTableBase 0x115 * 4; __asm{ cli mov eax,cr0 and eax,not 10000h mov cr0,eax } *((ULONG*)Address) = (ULONG)OldServiceAddress;//還原SSDT *((ULONG*)Address1) = (ULONG)OldServiceAddress1;//還原SSDT __asm{ mov eax,cr0 or eax,10000h mov cr0,eax sti } DbgPrint("Unhook"); } 由于它不斷對DebugPort清零，所以要修改調試相關函數，使得所有的訪問DebugPort的地方全部訪問EPROCESS中的ExitTime字節，這樣它怎么清零都無效了，也檢測不到 代碼: .386 .model flat, stdcall option casemap:none include dnf_hook.inc .const Dspdo_1 equ 803db6h Dmpp_1 equ 802d5eh Dmpp_2 equ 802dh Dct_1 equ 8045d3h Dqm_1 equ 803089h Kde_1 equ 804ff5fdh Dfe_1 equ 804340h Pcp_1 equ 805d1a0dh Mcp_1 equ 805b0c06h Mcp_2 equ 805b0d7fh Dmvos_1 equ 80497fh Dumvos_1 equ 804a45h Pet_1 equ 805d32f8h Det_1 equ 80486ch Dep_1 equ 8048e6h .code ;還原自己的Hook DriverUnload proc pDriverObject:PDRIVER_OBJECT ret DriverUnload endp ModifyFuncAboutDbg proc addrOdFunc, cmd_1, cmd_2 pushad mov ebx, addrOdFunc mov eax, cmd_1 mov DWORD ptr [ebx], eax mov eax, cmd_2 mov DWORD ptr [ebx 4], eax popad ret ModifyFuncAboutDbg endp DriverEntry proc pDriverObject:PDRIVER_OBJECT, pusRegistryPath:PUNICODE_STRING cli mov eax, cr0 and eax, not 10000h mov cr0, eax invoke ModifyFuncAboutDbg, Dspdo_1, 90784789h, 0fde89090h invoke ModifyFuncAboutDbg, Dmpp_1, 90787e39h, 950f9090h invoke ModifyFuncAboutDbg, Dct_1, 90785e39h, 840f9090h invoke ModifyFuncAboutDbg, Dqm_1, 9078408bh, 45899090h invoke ModifyFuncAboutDbg, Kde_1, 90787839h, 13749090h invoke ModifyFuncAboutDbg, Dfe_1, 9078418bh, 0d2329090h invoke ModifyFuncAboutDbg, Pcp_1, 90784389h, 45f69090h invoke ModifyFuncAboutDbg, Mcp_1, 90785e39h, 950f9090h invoke ModifyFuncAboutDbg, Mcp_2, 90784a89h, 5e399090h invoke ModifyFuncAboutDbg, Dmvos_1, 9078498bh, 0cb3b9090h invoke ModifyFuncAboutDbg, Dumvos_1, 00787983h, 74909090h invoke ModifyFuncAboutDbg, Pet_1, 00787f83h, 74909090h invoke ModifyFuncAboutDbg, Det_1, 9078498bh, 0c9859090h invoke ModifyFuncAboutDbg, Dep_1, 9078498bh, 0c9859090h ;invoke ModifyFuncAboutDbg, Dmpp_2, 8bc0950fh, 8b90c032h mov eax, pDriverObject assume eax : ptr DRIVER_OBJECT mov [eax].DriverUnload, offset DriverUnload assume eax : nothing mov eax, cr0 or eax, 10000h mov cr0, eax sti mov eax, STATUS_SUCCESS ret DriverEntry endp end DriverEntry dnf動漫16