Questions tagged [functions]

A sequence of instructions performing a basic task packaged as a unit in a program.

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Implementing call into compiled, undocumented, C DLL; divining exported function prototype

I've been attempting to build my own implementation of Nvidia's Surround functionality by using their DLLs within a more reliable and automatic system. I'm pretty new to this; I've been a programmer ...
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2answers
275 views

How to force run a method triggered with a series of keys in a game?

This is my first time asking something on SE and I'll do the best I can to provide all of the required information, but I apologize in advance if I'm not clear enough. I'm trying to reverse engineer ...
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2k views

Tracing function call args with IDA Pro

Right now I'm trying to place a trace point and hook it with the Python code that pulls all relevant stuff from the stack. Unfortunately it just gives me the garbage all the time, because the value in ...
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0answers
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Reversing Pyarmor Discussion

Anyone messing around with pyarmor recently? For those of you that are unaware of what pyarmor is, its a protection software that is to help obfuscate and protect your software. Heres an image of what ...
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0answers
137 views

Restore function key

I have a simple function which looks like that: keyAlphabet = [-1, 16, 32, 127, 61, -32, -31, 43, 0, 88, 2, 5, 7, 112, 64, 69, 96] key = ??? # only keyAlphabet values p = 0x1337 for i in key: ...p*=i ...
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0answers
207 views

Decoding A/C IR Codes

I captured infrared codes from an air conditioner remote to realize each code contains the entire state (i.e. temperature, mode, fan speed, etc.) every time a button is pressed. I believe this is so ...
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0answers
118 views

Removing/bypassing a BIOS whitelist

I am trying to bypass or erase the BIOS whitelist on my Thinkpad T440p. So far I've used flashrom and a soic8 clip to dump the bios to a bios.img file made another dump and compared with diff bios....
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2answers
216 views

Call function by ebp

When I looking at exe file with Ida I see call dword ptr [ebp -70p] What is that? Why this function calling by ebp and not call sub_0xabcd How can I know which function is that to enter to this ...
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49 views

Is there a way to modify number of reads/writes to/from a memory address?

I haven't had any luck researching this, so I thought I would inquire here! Let's assume I have found a memory address housing a value of interest. Using a program like Cheat Engine, I look for ...
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0answers
156 views

Why does IDA mark this as end of function?

I'm analyzing a .so file that is a part of an android application. I've stumbled upon this block of code: LOAD:0001B63C sub_1B63C ; CODE XREF: sub_1B628+Cp LOAD:...
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0answers
624 views

DirectX calls not appearing

I'm trying to do some reverse-engineering to a DirectX 9 game. I've used PIX to see all the DirectX calls of the game, and that part worked correctly. After that, I wanted to know where in the code ...
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finding a not-so-straightforward game's function

I am working on Mad Max game [ APEX engine ] I do my best to explain the situation. so my target executes function like this: there are commands like " call [eax+XX] " or " call RX &...
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1answer
361 views

Having hard time analyzing stripped code

This is my first time doing RE on a statically linked and stripped binary with ghidra. And I'm having a really hard time analyzing what function does what just by looking the decompiled code present ...
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1answer
136 views

'local call from' in x64dbg

In OllyDbg there was a thing called "local call from xxx,xxx,xxx,xxx ... " which helps me know from where a function is being called in the entire module. Does such a feature exist in x64dbg as well?