Unanswered Questions
2,051 questions with no upvoted or accepted answers
14
votes
1
answer
4k
views
Howto clone Android RSA SecurID Software Token
At the moment I try to figure out how the RSA SecurID Software Token protects itself from getting cloned to another android device. The token I imported has no device binding enabled and I already ...
CommunityBot
- 1
13
votes
0
answers
554
views
Problems calculating checksum for AirConditioner
I am trying to reverse engineer an AC Indoor unit <-> thermostat communication. So far I've succeeded in parsing the bits and bytes.
I discovered that the upper and lower nibbles need to be ...
- 56
13
votes
0
answers
1k
views
Reverse Engineering 2 byte checksum on RFID card
I am currently researching my studentcard.
Money is stored on this card.
But the vending machine also checks a checksum on the card.
I already did a lot of effort to find it but didn't succeed.
The ...
10
votes
0
answers
2k
views
Ghidra loading Linux kernel function signatures
TLTR
I want to load Linux kernel headers vs. 4.19 to Ghidra so that it recognizes kernel structures and function signatures.
Full description
I'm trying to reverse engineer a Linux kernel module (...
- 1,120
10
votes
0
answers
3k
views
RE Tplink TD-W8960N V7
I am trying to reverse engineer a TDw8960 v7 TP-Link router. Currently the router has a bug, whereby setting the MTU via the GUI has no affect. It seems regardless of the value placed here despite ...
- 1
9
votes
0
answers
2k
views
Decompiling an executable compiled by vercel/pkg
I have a .exe file that I am trying to get the source code of, After some digging I figured out that it's in node.js and was compiled using vercel/pkg
I tried using pkg-unpacker however the output is ...
- 91
9
votes
0
answers
1k
views
Firmware analysis, can't find file system
I'm TV repair tech and I've found that corrupted firmware is responsible for the failure of a large portion of the TV's I work on. I came up with the idea that if I could reverse engineer the ...
- 11.7k
9
votes
0
answers
383
views
replicate external bank switching in IDA Pro
I'm reverse engineering an embedded Z80 application in IDA Pro 7.0. The target system maps one address range to either of a pair of expansion boards. The address decode logic decides which board is ...
- 191
9
votes
1
answer
7k
views
How to unpack manually an upx packed elf file
I am trying to learn to manually unpack an upx packed elf file. The examples I have found are for Windows, mostly with Ollydbg, and as I see the first step is to look for pushad and popad instructions....
- 1
8
votes
0
answers
670
views
How do I reverse this firmware? 8-bit handheld console
I recently bought this chinese console that supposedly has 328 8-bit games. I want to understand the code and how it works to hack it and maybe load other ROMs. It has a chip covered in black epoxy ...
- 1
8
votes
0
answers
888
views
Analyzing a Revit project file
I've been messing around with Revit and trying to understand the internal data structures for its file format. I'm not particularly experienced with this type of work and the processes around reverse ...
- 81
8
votes
0
answers
3k
views
Identifying a USB device for a forensics CTF challenge (with no GET DESCRIPTOR)
I'm currently enjoying a forensics CTF challenge. We were provided a PCAPNG file. When opened in Wireshark, the file contains a sequence of URB_INTERRUPT packets from two devices - but no ...
- 363
7
votes
0
answers
324
views
running iOS debugserver on non-jailbroken devices
There are multiple tutorials on how to debug applications on jailbroken devices. These usually involves resigning debugserver, scp and running it from ssh with few tweaks to the entitlements and ...
- 161
6
votes
1
answer
2k
views
Huawei HG8245H, can't read some system files
I have modem Echolife HG8245H (V3R016C10S150). I'm using telnet to connect it. I need to read some files from this modem. There's a shell mode I can enter, but it is nerfed badly:
SU_WAP>shell
...
CommunityBot
- 1
6
votes
0
answers
555
views
Radare2 - How to save/restore metadata in debug session (BPs, flag, comments..)?
How can i save/reuse/preserve Radare2 metadata (BPs, comments, flags..) of a debug session for a new debug session? I restart the debugger alot and preserving environment would be very helpful.
I ...
- 173