[enable]
alloc(SetUP,64)
alloc(user,14)
alloc(pass,12)
registersymbol(user)
registersymbol(pass)
label(SetUPret)

user:
dd 01

pass:
dd 01

00691C74:
jmp SetUP
SetUPret:

SetUP:
//mov ebx,[eax] //eax = username
mov ebx, [user]
mov [eax], ebx
mov ebx, [user+04]
mov [eax+04], ebx
mov ebx, [user+08]
mov [eax+08], ebx
//mov ebx,[edi]  //edi = password
mov ebx, [pass]
mov [edi], ebx
mov ebx, [pass+04]
mov [edi+04], ebx
mov ebx, [pass+08]
mov [edi+08], ebx
call 00663c2a//Original Op
jmp SetUPret

[disable]
00691C74://E8 ? ? ? FF 8B F8 8B 45 08 3B C3 C6 45 FC 04 74 ? 83 C0
db e8 b1 1f fd ff
dealloc(SetUP)
dealloc(user)
dealloc(pass)
unregistersymbol(user)
unregistersymbol(pass)