private exe protector unpacking?

[0xall0c]

pattern search for 4.2.5 gave me this

push ebp
mov ebp,esp
push ecx
push dword ptr ss:[ebp+14]
push dword ptr ss:[ebp+10]
push dword ptr ss:[ebp+C]
push dword ptr ss:[ebp+8]
call <wartrc2.sub_FDFB10>
test eax,eax
jne wartrc2.FDFF3F
mov byte ptr ss:[ebp-1],0
jmp wartrc2.FDFF4C
lea edx,dword ptr ss:[ebp-1]
mov ecx,1
call <wartrc2.sub_FE04F8>
movzx eax,byte ptr ss:[ebp-1]
pop ecx
pop ebp
ret 10

i tried to set eax return to 1 but no luck can you explain a little bit more!