little more debugging and i get to know that the pattern function in some way compares some bytes with another bytes generated from the same function, so right now i am patching the function to contain [ebp-1] = 0, what if i make [ebp-1]=0 with valid data not patching then i think i would not get the exception as the same data is later getting xored with the real oep section? is this correct?

ok i give up, can anyone hand me the solution? so that i can actually see whats happening?

Hi the last pattern seems working but if target is encrypted then the code section not decrypted and program crashes.

Can you give little more information about it? maybe some older notes you've wrote while analysis or anything

i didnt create any notes! although yea it crashes because of wrong decryption, you have to get the key!