Unanswered Questions
1,682 questions with no upvoted or accepted answers
12
votes
1answer
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 ...
11
votes
0answers
491 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 ...
10
votes
0answers
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 ...
9
votes
0answers
2k 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 ...
8
votes
0answers
459 views
Extracting strings from Go binaries
Is there an easy way to extract all of the strings from Go binaries that will work cross architecture?
The problem with Go is that strings are stored without a null terminator so you can't use the "...
8
votes
0answers
854 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 ...
8
votes
1answer
888 views
Red Alert 2 Windows 8 DirectDraw compatibility
The game Red Alert 2 runs on Windows 8, but as soon as I inject a DLL (via ddraw.dll or an extra DLL) it stops drawing buttons on the main menu. With the DLL it still work fine in windowed mode and it ...
7
votes
0answers
433 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 ...
7
votes
0answers
574 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 ...
7
votes
0answers
2k 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 ...
6
votes
2answers
559 views
Extracted router file execution
I am trying to run an executable file that I dug out from an extracted file system of a DSL modem router. So first of all I needed to either have a MIPS Linux box or take the emulation path. After ...
6
votes
0answers
398 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 ...
6
votes
0answers
278 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 ...
6
votes
0answers
636 views
Reliable way to recognize STL template classes?
Since the template classes are different between instantiation, it is extremely difficult for library recognition using universal patterns.
But the control flow graph and references to system call of ...
6
votes
0answers
5k 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....
