All Questions
9
questions
0
votes
1
answer
72
views
Updating legacy library in an already compiled binary
I'm dealing with a reverse engineering challenge involving a binary application that was statically compiled with a legacy library. While the legacy library is not vulnerable, it lacks certain ...
- 3
1
vote
1
answer
73
views
Patching a B(ranch) causes segfault in ARMv7 binary, while the same patch (with JMP) works on x64 binary
Any ideas why trying to patch a ARMv7 binary causes a segfault while basically the same patch on the Win64 version of the software works as expected?
Here is the Win64 version, that works
UPX0:...
- 11
1
vote
0
answers
135
views
Statically injecting translated NASM assembly into existing ELF binary
I'm trying to statically patching ELF binaries in order to incorporate code that can help provide run-time protection.
In an effort to save time writing and debugging assembly, I took the following no-...
- 111
4
votes
0
answers
93
views
Any way to edit an ELF binary without hex? [duplicate]
So, this is a noob question, I am a complete beginner in this field, so sorry if I'm wasting your time in any way.
I wanted to know, if there is a way to edit an ELF binary without using a hex editor....
- 141
0
votes
1
answer
284
views
Is it possible to add a label to an ELF executable and then call that label? If so, how?
Let's say we have this simple "hello world" nasm code that will be compiled to an ELF executable:
global main
section .data
message db "Hello World!", 0x00
section .text
main:
call ...
- 103
1
vote
1
answer
2k
views
Radare2 - Insert asm instructions without overwriting
In order to patch a x86 elf file on Linux, I'm struggling to insert a specific assembler instruction into the binary file without overwriting any of the preexisting instructions.
I've been reading ...
- 51
4
votes
1
answer
3k
views
Injecting shellcode in ELF binary
I am trying to inject a piece of shellcode inside a 32-bit ELF executable. I am running Ubuntu 14.04 64-bit. Hence, all the commands I have run require explicit switches to produce 32-bit code. I am ...
- 1,381
2
votes
1
answer
1k
views
Insert a function call in an ELF executable
I want to patch an ELF executable to insert a function call (the function s2e_rawmon_loadmodule and its dependencies are to be linked statically, preferably) at the beginning.
This answer seems to ...
- 1,381
4
votes
1
answer
619
views
ELF counterpart for IDA Pro PE utilities
I'm interested in patching ELF files using IDA and the following PE utilities have proven very useful for patching PEs.
Does anyone know if there are some publicly available IDA scripts similar to ...
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