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IDA Hacking


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Posted

Mission Reward: GetCopper

 

MOVS R3, R0

LDR R1, [R3, #0x24]

LDR R0, [R0, #0x20]

BX LR

 

What should I do with this to get a million of copper after the mission? Should I change the MOVS R3, R0? (PS: I already change it to MOV R0, R7 - CRASH, then once again I change it to MOV R0, R5 - gives a +million value/doesn't crash but I didn't receive any copper - VISUAL)

 

I feel scare to change the LDRs - Like LDR R1 to LDR R5.

 

What do you think? :/

  • Solution
Posted

What I would do because I'm lazy would be to just MOV R0, R7 BX LR the whole function.

 

But if you don't want to do that try changing the first LDR to MOV R0, R7 and the second LDR to MOV R1, R7

Posted

What I would do because I'm lazy would be to just MOV R0, R7 BX LR the whole function.

 

But if you don't want to do that try changing the first LDR to MOV R0, R7 and the second LDR to MOV R1, R7

OH!! :facepalm: THAT "BX LR" - 70 47 right?

 

I'll try it now :)

Posted

Yeah - MOV R0, R7 BX LR is 381C7047 in hex :)

OH F*CK! IT ACTUALLY WORKS LIKE A CHARM!!! THANK YOU VERY MUCH "Maéstro @shmoo!"

 

BUT sadly, after another mission, the copper gets negative. Should I NOP it? What do you think? :/

Posted

OH F*CK! IT ACTUALLY WORKS LIKE A CHARM!!! THANK YOU VERY MUCH "Maéstro @shmoo!"

 

BUT sadly, after another mission, the copper gets negative. Should I NOP it? What do you think? :/

Try a lower Rn as I said in sb :teehee:

Posted

Ignore those LDR :D

 

Just do this

 

 

MOV r0,r7 BX LR = in hex it would be  381C7047

 

I do that every time xD

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