edi 845

Reading Tips: 《Delphi Image ProcessingThe series focuses on efficiency. The general code is Pascal, and the core code is BaSm. The C ++ image processing series focuses on code clarity and readability, all using C ++ code. Make sure that the two items are consistent and can be compared with each other. The code in this article must include the imagedata. Pas unit in "Delphi Image Processing-data type and public process. Set the Key Color of the image to make the color of an image or within a ce

Label: Ar SP Div BS as Har relation ca nbspThree registers are involved: ECx, Al, EDI, and ZF bit and DF bit of the Mark register.Repne first checks whether ECx is 0, and if it is not 0, the loop is performed.Scasb is equivalent to SCAs byte ptr ds: [EDI] That is, sub Al, byte ptr ds: [EDI]. in addition, if the flag register df = 0, after scasb is executed,

methods) : 71a21af5 8bec mov EBP, esp // machine code to be hooked (2nd methods) : 71a21af7 83ec10 sub ESP, 00000010 : 71a21afa 56 push ESI : 71a21afb 57 push EDI : 71a21afc 33ff xor edi, EDI : 71a21afe 813d1c20a371931ca271 cmp dword ptr [71a3201c], 71a21c93 // machine code to be hooked (4th methods) : 71a21b08 0f84853d0000 je 71a25893 : 71a21b0e 8d45f8 Lea eax,

I hope you can come up with some ideas ~ Check whether there is any shell... Microsoft Visual C ++ 6.0, indicating no shell ~ Let's enter an account and password for trial run ~ The error message "incorrect registration name or registration code!" is displayed !" Okay. Let's load it with OD ~~ Search for asii, find the error message, and double-click it to go to the code ~ 00401d00/0f85 df1_00 jnz ultradic.00401de500401d06. | 68 01100000 push 100100401d0b. | 68 f4704300 push ultradic.004370f4; A

, because the parameter needs to be seen before createfont is called, to determine which call corresponds to the song name, use "BC" to clear the breakpoint and set the breakpoint in the last return statement of the kernel, then press "F5" until Winamp starts running and closes it."Load" again, press "F5", this time it stops on the Return Statement in the kernel, and then press "F10" to return to the code area where Winamp is located, and look up, you can see the following code:

"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"the CMPS directive is used to compare string values, and the CMPS directive has three formats: CMPSB, CMPSW, CMPSL. The implied source operand and target operand locations are stored in the ESI and EDI registers, and each time the cmps instruction is executed, the ESI and

). So the different compilers of different platforms have to be treated differently. The above is the last insufficient supplement. Here's a look at the array: test.c Example: Copy Code code as follows: void Hello1 () { int a[3]={1,2,3}; int b=a[1]; } void Hello2 () { int a[3]={1,2,3}; int b=* (a+1); } void Hello3 () { int a[3]={1,2,3}; int B=1[a]; Is that right? } If you look carefully, the difference between the three functions is that of the

Recently there was a place where the probabilities were used in the project, and the probability of calculating the probabilities would naturally use division. My side of the probability of the algorithm is this, from 0 to 10000 to get a random number, the random value divided by 10000 is the probability, but the careless attention to detail, the result is directly in addition to the following: = New Random (); int= rdo. Next (0,10000); float=/10000; If Int

this function: Exported FN (): Send-ord: 0013 HAssembly Code of address machine code: 71a21af4 55 push EBP // machine code to be hooked (1st methods): 71a21af5 8bec mov EBP, esp // machine code to be hooked (2nd methods): 71a21af7 83ec10 sub ESP, 00000010: 71a21afa 56 push ESI: 71a21afb 57 push EDI: 71a21afc 33ff xor edi, EDI: 71a21afe 813d1c20a371931ca271 cmp d

Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Public Static Vector3 Foo (vector3 V, Float Radius){Matrix;Matrix. createtranslation ( Ref V, Out A ); Matrix B=Matrix. createtranslation (v ); Matrix. Multiply (RefA,RefB,OutA ); Vector3 F1=B. forward; Vector3 F2;F2.x=B. m31;F2.y=B. M32;F2.z=B. M33; Vector3 F3;Vector3.add (RefF1,RefF2,OutF3 );Vector3.transform (RefF3,RefA,OutF1 );ReturnF1;} Test 2 is the focus of this Article. To facilitate the discussion, we div

";VaR objtmp = Document. getelementbyid ("TOP ");VaR bodyhtml = objtmp. innerhtml;VaR strfns = "/R/N "; // Analyze respond text !;VaR strrestext = XMLHTTP. responsetext;For (VAR I = 0; I Tooltip Callwindowproc is set as a macro, divided into callwindowproca and callwindowprocw.In both functions a and W, callwindowprocaorw (...) is called. The prototype is lresult winapi callwindowprocaorw (wndproc PFN, hwnd, uint message, wparam, lparam, bool Bansi). function a sets Bansi to 1, the W function s

parameter is the pointer to the string for the BMP file to open,Where my string is at address 0x00197fe8, and staying at 0x00197fe8 each timeAt the moment which is why I cocould debug this. Below is the disassembly with some of my own comments noting the importantParts: _ Loadbmp @ 20:77d55e95 mov EDI, EDI77d55e97 push EBP77d55e98 mov EBP, ESP77d55e9a sub ESP, 24 h77D55E9D mov ecx, dword ptr [ebp + 0Ch]; Copies address of filenameInto ecx77D55EA0 pus

;} Printf ("Symantec Local Privilege Escalation Vulnerability Exploit (POC) \ n ");Printf ("tested on: \ n \ twindows 2003 SP1 (ntkrnl.pa.exe version) \ n ");Printf ("\ tcoded by shadow3 \ n "); Status = ntallocatevirtualmemory (handle)-1, Shellcodememory,0, Memorysize,Mem_reserve | mem_commit | mem_top_down,Page_execute_readwrite );If (status! = STATUS_SUCCESS ){ Printf ("ntallocatevirtualmemory failed, status: % 08x \ n", status );Return 0;} Memset (shellcodememory, 0x90, memorysize ); _ ASM {

Game: tianlong BabuVersion: 0.13.0402System: Windows XPTool: ce5.2 + od1.10Objective: To search for the character base address Step 1: search for the person Hp with Ce, get a bunch of addresses, continue searching after blood loss, get the unique address 0abdc360 (HP address) Step 2: Switch the map and find that the value in the address is no longer HP, it is a dynamic address. Repeat the first step to search for a new HP address (the address is omitted) Step 3: Do not switch the map at this tim

?) Send network data should be read breakpoint Ah ... The purpose here is to find the origin of this memory, not the same as not to locate the sending network data, positioning to write data can still ah ...! !)"11:25" above found non-base address, OD in memory Access breakpoint (ZC:-.-)"12:26" "Repne scas" command (ZC: Default is EAX, ECX)"16:00" the command od press F7, will be executed once in a loop"17:11" At this time the EDI value is 0x065ef2ab,

. The source program entry is _start. As follows:Cpuid2.s # Cpuid2.s file.section. DataOutput: . Asciz "CPUID is '%s ' \ n". Section. BSS . Lcomm Buffer, 12. Section. Text.globl _start_start: NOP movl $,%eax cpuid movl $buffer,%edi movl%ebx, (%edi) MOVL%edx, 4 (%edi) movl%ecx, 8 (%edi) pus

be viewed through the linux system, but the stack frame Implementation of centos7 seems to be somewhat different, and the same code cannot run on centos7. The following is a Disassembly 1 int main() 2 { 3 00A118E0 push ebp 4 00A118E1 mov ebp,esp 5 00A118E3 sub esp,0D8h 6 00A118E9 push ebx 7 00A118EA push esi 8 00A118EB push edi 9 00A118EC lea

! NtWriteVirtualMemory 01. GIF (48.97 KB) The three functions show YES, indicating that the Address is written down by the HOOK. We can use WINDBG to check the Address. Switch to the WINDBG menu and choose "open"> "kernel mode"> "local". Then, confirm whether to save or choose "yes ". Menu-View-command browser we break into command uf 0xaa096314 (my Address here may be different from yours to see clearly !!) 02. GIF (116.31 KB) Aa096314 PUSH EBPAa096315 mov ebp, ESPAa096317 add esp,-28Aa09631a

Ebx,esi,edi separately to in the stack, after Le Ah, Mov,mov three, the initial space of the main function is populated with 13h (bits 19) cc To get a better idea of the stack creation and destruction, let's illustrate it graphically when it's Ebx,esi,edi. After the three registers are pressed into the stack, after the 13h size space is initialized to CC, the ESP pointer moves up to the

the operating system for the people Basic execution Environment Address space: Protected mode 4G, Real mode 1M Basic registers: 8 Universal Registers: EAX,EBX,ECX,EDX,EBP (base address pointer), ESP (stack pointer), ESI (Source index), EDI (destination index). The first four groups can be addressed to 8-bit (Eax,ax,ah,al), and the last four groups can address only 16-bit (ESI,SI) 6 segment registers: CS (Code), SS (Stack), DS (Data), es,fs,gs eflags