Help/Support Memory Check bypass

Ted2 · August 14, 2017

Hi there,

I'm trying to hack a game, I feel like I'm very close.

I hacked this function:

 
sub_100C7DCC0
LDR             W8, [X0,#0xC]
SUB             W8, W8, W1  <------> changed to ADD & the W1 to W29
STR             W8, [X0,#0xC]
RET

When substracting any resources out there, it added like 8800milion to any resources.
But, when closing app this would go back to normal.

I went looking for a function that might be check something.

I found this:

sub_100C7DCF0
MOV             W8, #0xB4DE0000
MOVK            W8, #0xABBC
CMP             W1, W8
CSET            W8, EQ
MOV             W9, #0x24E80000
MOVK            W9, #0x388C
CMP             W1, W9
CSET            W9, EQ
ORR             W0, W8, W9
RET

I'm pretty new to CMP things etc.

What I did was:

sub_100C7DCF0
MOV             W8, #0xB4DE0000
MOVK            W8, #0xABBC
CMP             W1, W8
CSET            W8, EQ  <------> change to MOV W8, #1
MOV             W9, #0x24E80000
MOVK            W9, #0x388C
CMP             W1, W9 <-------> change to MOV W9, #1
CSET            W9, EQ
ORR             W0, W8, W9
RET

What this did was the following, it made food have the same value as my gems, which normally is like 4000 less.

But still, when spending, my resources will go back to normal after reopen app.

Anyone knows what to do?

Thanks!

ps: typed on phone, so idk if everything works alright

NoHax · August 14, 2017

Have a look at this.

Ted2 · August 14, 2017

1 minute ago, NoHax said:

Have a look at this.

Yea already did that, but not really works if I try like the same.. Lol

K_K · August 14, 2017

Just now, Ted2 said:

Yea already did that, but not really works if I try like the same.. Lol

It still might not be the right address . Can you use the resources ? Check to see

Ted2 · August 14, 2017

2 minutes ago, K_K said:

It still might not be the right address . Can you use the resources ? Check to see

No, I can't..

NoHax · August 14, 2017

3 minutes ago, Ted2 said:

No, I can't..

Check if that's the memory check, use break points like it says in Shmoos tutorial

Ted2 · August 14, 2017

2 minutes ago, NoHax said:

Check if that's the memory check, use break points like it says in Shmoos tutorial

I did break on the above function, when try spending, game would freeze.

K_K · August 14, 2017

6 minutes ago, Ted2 said:

No, I can't..

Well if you can't use the resources it's not right . I hacked a game called dream gym the values changed but I couldn't use the cash , coins etc. I checked back and forth couldn't see the issue so I I bt the function which gave me other addresses which gave me the real address

August 14, 2017

If it's only visual, try another adress

Ted2 · August 14, 2017

9 minutes ago, K_K said:

Well if you can't use the resources it's not right . I hacked a game called dream gym the values changed but I couldn't use the cash , coins etc. I checked back and forth couldn't see the issue so I I bt the function which gave me other addresses which gave me the real address

Bt = backtrace?