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Unexplained crashes.
Posted: Thu Feb 09, 2017 3:26 pm
by bigguy
Hello, I am attempting to manual map a dll into a process. If the dll is packed with vmp lite and kernel+usermode debugging is on it crashes. Without debugging on, it doesnt.
It gave a 0x0000004 error (similar to that). It works on my pc but not others, very odd.
Re: Unexplained crashes.
Posted: Sat Feb 11, 2017 4:58 am
by Admin
Do you mean the message "Initialization error 4"?
Re: Unexplained crashes.
Posted: Sun Feb 12, 2017 7:46 pm
by bigguy
Here are the errors on other peoples computers, on mine it works all the time.
Has something to do the kernel option of
VMProtectIsDebuggerPresent, or even the debugger + kernel option in the VMProtect application.
Error 1:
Unhandled exception at 0x1000B75B: 0x80000004: Single step.
Error 2:
Exception thrown at 0x771ADA51 (ntdll.dll): 0xC0000005: Access violation reading location 0x00000008
Re: Unexplained crashes.
Posted: Mon Feb 13, 2017 8:21 am
by Admin
It seems your maual loaded DLL doesn't support exceptions. Try to use LoadLibrary instead of your method.
Re: Unexplained crashes.
Posted: Thu Feb 16, 2017 4:48 am
by Admin
Do you really think that your DLL is invisible in the memory if you loaded it manually?
)
Re: Unexplained crashes.
Posted: Sun Feb 19, 2017 4:08 am
by Admin
Please notice that the main problem - it is your manual loading method. It doesn't support exceptions even if a DLL will use something like this:
Code: Select all
try {
throw ...;
} catch (...)
{
...
}