By Bruce Dang, Alexandre Gazet, Elias Bachaalany
Examining how hacks are performed, on the way to cease them within the future
Reverse engineering is the method of examining or software program and figuring out it, with no need entry to the resource code or layout records. Hackers may be able to opposite engineer structures and make the most what they locate with frightening effects. Now the great men can use an analogous instruments to thwart those threats. useful opposite Engineering is going below the hood of opposite engineering for safeguard analysts, safeguard engineers, and procedure programmers, to allow them to the way to use those related procedures to prevent hackers of their tracks.
The publication covers x86, x64, and ARM (the first booklet to hide all three); home windows kernel-mode code rootkits and drivers; digital computing device security suggestions; and lots more and plenty extra. better of all, it deals a scientific method of the fabric, with lots of hands-on routines and real-world examples.
Offers a scientific method of figuring out opposite engineering, with hands-on workouts and real-world examples
Covers x86, x64, and complex RISC laptop (ARM) architectures in addition to deobfuscation and digital computing device safeguard options
Provides distinct insurance of home windows kernel-mode code (rootkits/drivers), a subject hardly coated in other places, and explains tips to study drivers step-by-step
Demystifies themes that experience a steep studying curve
Includes an advantage bankruptcy on opposite engineering tools
Practical opposite Engineering: utilizing x86, x64, ARM, home windows Kernel, and Reversing instruments offers an important, up to date suggestions for a extensive diversity of IT professionals.
Read Online or Download Practical Reverse Engineering: x86, x64, ARM, Windows Kernel, Reversing Tools, and Obfuscation PDF
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Additional info for Practical Reverse Engineering: x86, x64, ARM, Windows Kernel, Reversing Tools, and Obfuscation
Explain your reasons. Can you do a better job? 3. In some of the assembly listings, the function name has a @ prefix followed by a number. Explain when and why this decoration exists. 4. Implement the following functions in x86 assembly: strlen, strchr, memcpy, memset, strcmp, strset. 5. Decompile the following kernel routines in Windows: ■ KeInitializeDpc ■ KeInitializeApc ■ ObFastDereferenceObject (and explain its calling convention) ■ KeInitializeQueue ■ KxWaitForLockChainValid ■ KeReadyThread ■ KiInitializeTSS ■ RtlValidateUnicodeString 6.
Given what you learned about CALL and RET, explain how you would read the value of EIP? Why can’t you just do MOV EAX, EIP? 2. Come up with at least two code sequences to set EIP to 0xAABBCCDD. 3. In the example function, addme, what would happen if the stack pointer were not properly restored before executing RET? 4. In all of the calling conventions explained, the return value is stored in a 32-bit register (EAX). What happens when the return value does not fit in a 32-bit register? Write a program to experiment and evaluate your answer.
By writing one value, the code managed to initialize three fields with a single instruction! The code could have been written as follows: 01: 02: 03: 04: 05: 06: 07: 08: 8B 83 89 8B C6 C6 66 89 45 61 41 45 01 41 C7 41 0C 1C 00 0C 10 13 01 01 41 02 00+ 10 mov and mov mov mov mov mov mov eax, [ebp+0Ch] dword ptr [ecx+1Ch], 0 [ecx+0Ch], eax eax, [ebp+10h] byte ptr [ecx],13h byte ptr [ecx+1],1 word ptr [ecx+2],0 [ecx+10h], eax The compiler decided to fold three instructions into one because it knew the constants ahead of time and wants to save space.
Practical Reverse Engineering: x86, x64, ARM, Windows Kernel, Reversing Tools, and Obfuscation by Bruce Dang, Alexandre Gazet, Elias Bachaalany