gxs edi

is filled, the cmp [Addr] And 0xff will be used to determine whether to check the encryption option for processing. There is Magic JUMP, but the Shell API address has been redirected, and the Patch code needs to be restored.>The code is not optimized, and there is no time to optimize it. There are too many records to analyze the main program.The Patch code is as follows:Code:00B60000 60 pushad00B60001 9C pushfd00B60002 BE 00104000 mov esi, 0x401000 Code segment Addr00B60007 BF 00404000 mov

at the various flags. Let's take a look at the key points in rtlfreeheap. Key Aspect 1001b: 77fcc829 8a4605 mov Al, [ESI + 05] // ESI points to the start address of the buf2 8-byte management structure, namely, the Al flag001b: 77fcc82c a801 test Al, 01 // whether the flag value contains heap_entry_busy001b: 77fcc82e 0f84a40e0000 JZ 77fcd6d8 // skip if not included. Skip here001b: 77fcc834 f6c207 test DL, 07001b: 77fcc837 0f859b0e0000 jnz 77fcd6d8001b: 77fcc83d 807e0440 CMP byte PTR [ESI + 04],

returned.XOR eax, eaxMoV ESI, LPXMoV ECx, n@@:MoV edX, [ESI + eax * 4]Test edX, EDXJnz exitINC eaxCMP eax, ECxJl @ BMoV eax, 1RETExit:XOR eax, eaxRET_ Iszero endp;-----------------------------------------------------------_ Add proc N: DWORD, LPX: DWORD, lpy: DWORD; X + = yMoV EDI, LPXMoV ESI, lpyXOR ECx, ECx; carryMoV eax, nDec eax; n-1 subscript@@:MoV edX, [ESI + eax * 4]Add edX, ECxAdd edX, [EDI + eax *

Lucifer.; #########################################################################. 386. Model flat, stdcall; -bit memory model option Casemap:none; Case sensitive include \masm32\include\kernel32.inc; ------------------------------------ ; Please read the final usage of the text; ------------------------------------ARGCL PROTO:D Word,:D Word. Code; ######################################################################## #ArgCl proc Argnum:dword, ItemBuffer:D Word local cmdline:D word local c

+ 00000128] In this case, EAX = NextThread (ETHREAD structure) 0008: 80467E17 sub esp, 0C0008: 80467E1A MOV [ESP + 08], ESI0008: 80467E1E MOV [ESP + 04], EDI0008: 80467E22 MOV [ESP], EBP0008: 80467E25 mov esi, EAX0008: 80467E27 mov edi, [EBX + 00000124] Note: CurrentThread (ETHREAD structure)0008: 80467E2D mov dword ptr [EBX + 00000128], 000000000008: 80467E37 MOV [EBX + 00000124], ESI0008: 80467E3D mov ecx, EDI0008: 80467E3F CALL 8042F944 Note: KiRe

Author: bzhkl Time: 2008-12-11,12: 01 Chain: http://bbs.pediy.com/showthread.php? T = 78464 Previously, I tried to detect a hidden process and then solved it with the method of brute force enumeration. But the hook swapcontext didn't see complete code. So I collected some useful modules on the Internet and integrated them to implement support. xp3, xp2 should be supported even if it is not tested. Complete project code Difficulty: there are still some details about obtaining the swapcontext ad

Pus H 283e917ad 83c208 Add edx,883e917b0 9d popfd83e917b1 804c240102 or byte ptr [esp+1 ],283e917b6 6a1b push 1bh83e917b8 ff350403dfff push DWORD ptr ds:[0ffdf0304h]83e917be 6a00 Push 083e917c0 ebp83e917c1 ebx83e917c2 push esi83e91 7C3 edi83e917c4 push 648b1d1c000000 mov ebx,dword ptr fs:[1ch]//Important Get KPCR yourself 83E917CB 6a 3b Push 3BH83E917CD 8bb324010000 mov esi,dword ptr [ebx+124h]//Important Get current execution thread ethread83e917d3 ff33 push DWORD ptr [EBX]83E917D

0013b8820013b882 "uuu" Rasmans + 0xcc3c:7e51cc3c 59 pop ecx012cd128 7e51cc3c 02f1be72 0013b88a0013b88a "ppp" You can use OD to look at the relevant code near the return address above. 7E51CB81/$ mov edi, edi7E51CB83 |. push ebp7E51CB84 |. mov ebp, esp7E51CB86 |. push ebx7E51CB87 |. push esi7E51CB88 |. mov esi, dword ptr [ebp + 8]7E51CB8B |. xor ebx, ebx7E51CB8D |. push edi7E51CB8E |. mov dword ptr [ebp + 8], ebx7E51CB91 |. jmp 7E51CC927E51CB96 |>/

createfilemapping or eax, eax je error_filemap mov hmap, eax push 0 push 0 push 0 push 6 push eax call mapviewoffile; file ing to memory or eax, eax je Error_map mov pfile, eax mov EDI, eax mov ESI, offset gdtflag mov ECx, dwfilesize:; search for the descriptor Inc EDI push ESI push EDI push ECx mov ECx in ntldr, 10 h repz cmpsb pop ECx pop

locations are typically on the stack, but may also be in registers; this is specified by calling conventions. Program Execution jumps to the address of the called function. Inside the function, registers ESI, EDI, EBX, and EBP are saved on the stack. The part of code that performs these operations is calledFunction PROLOGAnd usually is generated by the compiler. The function-specific code is executed, and the return value is placed into the eax re

or server of the recipient, and stores it in the corresponding mailbox; the recipient can open his or her own mailbox through the network workstation at any time, Review the messages that you receive. Advanced e-mail systems can provide "text box", "voice mail," Graphic image box "and other types of electronic postage functions, supporting data, text, voice, graphics, images and other multimedia messages, and can be a variety of programs, data files as attachments to e-mail messages sent. Ther

"Copyright Notice: respect for the original, reproduced please retain the source: blog.csdn.net/shallnet, the article only for learning Exchange, do not use for commercial purposes"in high-level languages, we often manipulate strings, such as string copies, comparisons, lookups, and so on. There are also commands for implementing these operations in assembly language. This section describes the string transfer related Operations command in assembly language. The Movs instruction can transfer a s

This article describes the C language embedded API memory search engine method, shared for everyone to reference. The implementation methods are as follows: Copy Code code as follows: ApisearchEngine.cpp:Defines the entry point for the console application. // #include "stdafx.h" #include DWORD __stdcall Getstrlengtha (char* szName) { _asm { Push EDI Push EBX mov eax, szName mov edi