New DevHeads get a 320-point leaderboard boost when joining the DevHeads IoT Integration Community. In addition to learning and advising, active community leaders are rewarded with community recognition and free tech stuff. Start your Legendary Collaboration now!
I encountered an issue when injecting my assembly program **asm.txt** into a **portable executable file** to run a keylogger using `CreateThread`. `CreateThread` was failing with the error code `0x3E6 (ERROR_NOACCESS)`.
I’ve been suspecting it could be stack issues, memory protection issue, or me passing the wrong parameters to `CreateThread`, but I haven’t been able to pinpoint the exact cause.
Where is the error in my assembly code? How can I resolve the `ERROR_NOACCESS` error and successfully create the thread to run my keylogger in the injected PE file?
struct_def.txtstring_def.txtasm.txt
@marveeamasi The `ERROR_NOACCESS (0x3E6)` error in your `CreateThread` call is likely due to `memory access` or parameter issues. Ensure the `memory` where your `injected code` resides has proper `permissions` using `VirtualProtect` (`PAGE_EXECUTE_READWRITE`). Also, verify that the `stack` is `16-byte` aligned before calling `CreateThread`, and `re-check` that the parameters you’re passing are correct. If you’re injecting code into another process, make sure it allows execution of injected threads, and consider security features like DEP and ASLR that may need to be addressed.
I guess I am even complicating things the more . I need to calm down, and take my time to verify , altho I am under pressure doing this task
Yea coding might be more tasking at times and even cause severe headaches, that’s y u never 4get ur coffee ☕
So after further debugging, I found that I hadn’t correctly initialized the stack. Once I added the following initialization to the code, the keylogger started working correctly:
With this fix, the keylogger now works perfectly. Thanks for the help @enthernetcode
CONTRIBUTE TO THIS THREAD