Create a Test With This Limited Code

[Mr. Smith]

Long story, short: I'm stuck with the code below and I need a test between those two code segments.

All users run the first code segment, but I need a test so that one special user runs the second code segment. That one special user is directly affected by the first segment (I have a hunch the "push 0Fh" line most directly references the special user, but that may be wrong and I don't want that hunch to cloud anyone's appraisal).

The only way I have to reference this special user is with the elements of these two code segments. However, I don't know if this is possible to make a test that tests for that special user with only the code below.

I'm hoping someone who knows assembly better than I knows if that's possible and can provide some insights. Thanks!


mov ecx, [esi+4]
lea edx, [esp+18h]
push edx
lea edx, [edi+48h]
mov eax, [ecx]
push edx
lea edx, [edi+30h]
push edx
push 0Fh
call dword ptr [eax+1Ch]



mov eax, [esp+18h]
mov edx, [edi]
mov [edi+70h], eax
lea eax, [esp+74h]
push ebx
push eax
mov ecx, edi
mov [esp+7Ch], ebx
mov [esp+80h], ebx
mov [esp+84h], ebx
mov [esp+88h], ebx
call dword ptr [edx+70h]

[Mr. Smith]

The first segment seems to set the placement of the special user. The second segment crashes every user except the special user. When only the special user runs the second segment, no one crashes. The second segment seems to update the special user's placement to the others.