Insert value from script in pointer taken from Structure Dissect?

Anything Cheat Engine related, bugs, suggestions, helping others, etc..
Post Reply
pigeon
Cheater
Cheater
Posts: 30
Joined: Sat Mar 04, 2017 11:37 am
Reputation: 3

Insert value from script in pointer taken from Structure Dissect?

Post by pigeon » Sat Sep 23, 2017 12:14 pm

Hi!
I need help for taking control under all animals animations in "theHunter: Call of the Wild" game. Value that i can find with change/unchanged method is probably encrypted (it have different range of values after restarting the game) and i do not have enough of experience to make back trace, but value goes from shared instruction that affect player and all different animals. Accidentally, with "dissect data" i found actual value with stable offsets [[+18]+10] that do not change after restarting the game and even with the new updates and different type of animals have the same offset and stable animation value:
Show
Image
So what i need to do is somehow insert value into the address right from second blue line (HEX). I already have script that compare animals and player and if cmp=0 this means that this is player and it nop animals animations:
Show
[ENABLE]

aobscanmodule(AnimAnim1,theHunterCotW_F.exe,48 89 7B 18 48 8B D3 48 8B 07 48 8B CF FF 50 40 48 8B 43 38 48 85 C0 74 0C 48 8B 4B 30 4C 8B C7 48 8B D6 FF D0 48 8B 74 24 38) // should be unique
alloc(newmem,$1000,"theHunterCotW_F.exe"+2BC8D9)

label(code)
label(return)

newmem:
cmp byte ptr [rbx+B0],0
je code //leave original player animations and nop animals animation
mov rdx,rbx
jmp return

code:
mov [rbx+18],rdi
mov rdx,rbx
jmp return

AnimAnim1:
jmp newmem
nop
nop
return:
registersymbol(AnimAnim1)

[DISABLE]

AnimAnim1:
db 48 89 7B 18 48 8B D3

unregistersymbol(AnimAnim1)
dealloc(newmem)

{
// ORIGINAL CODE - INJECTION POINT: "theHunterCotW_F.exe"+2BC8D9

"theHunterCotW_F.exe"+2BC8B9: 48 8B 38 - mov rdi,[rax]
"theHunterCotW_F.exe"+2BC8BC: 74 06 - je theHunterCotW_F.exe+2BC8C4
"theHunterCotW_F.exe"+2BC8BE: 48 3B 7B 18 - cmp rdi,[rbx+18]
"theHunterCotW_F.exe"+2BC8C2: 74 3F - je theHunterCotW_F.exe+2BC903
"theHunterCotW_F.exe"+2BC8C4: 48 89 74 24 38 - mov [rsp+38],rsi
"theHunterCotW_F.exe"+2BC8C9: 48 8B D3 - mov rdx,rbx
"theHunterCotW_F.exe"+2BC8CC: 48 8B 73 18 - mov rsi,[rbx+18]
"theHunterCotW_F.exe"+2BC8D0: 48 8B CE - mov rcx,rsi
"theHunterCotW_F.exe"+2BC8D3: 48 8B 06 - mov rax,[rsi]
"theHunterCotW_F.exe"+2BC8D6: FF 50 50 - call qword ptr [rax+50]
// ---------- INJECTING HERE ----------
"theHunterCotW_F.exe"+2BC8D9: 48 89 7B 18 - mov [rbx+18],rdi
"theHunterCotW_F.exe"+2BC8DD: 48 8B D3 - mov rdx,rbx
// ---------- DONE INJECTING ----------
"theHunterCotW_F.exe"+2BC8E0: 48 8B 07 - mov rax,[rdi]
"theHunterCotW_F.exe"+2BC8E3: 48 8B CF - mov rcx,rdi
"theHunterCotW_F.exe"+2BC8E6: FF 50 40 - call qword ptr [rax+40]
"theHunterCotW_F.exe"+2BC8E9: 48 8B 43 38 - mov rax,[rbx+38]
"theHunterCotW_F.exe"+2BC8ED: 48 85 C0 - test rax,rax
"theHunterCotW_F.exe"+2BC8F0: 74 0C - je theHunterCotW_F.exe+2BC8FE
"theHunterCotW_F.exe"+2BC8F2: 48 8B 4B 30 - mov rcx,[rbx+30]
"theHunterCotW_F.exe"+2BC8F6: 4C 8B C7 - mov r8,rdi
"theHunterCotW_F.exe"+2BC8F9: 48 8B D6 - mov rdx,rsi
"theHunterCotW_F.exe"+2BC8FC: FF D0 - call rax
}
I'm use Google before and by following tips from this thread i make this script, but it crash my game and because of lack of experience with scripts and code - i do not really understand what i doing wrong:
Show
[ENABLE]

aobscanmodule(AnimAnim1,theHunterCotW_F.exe,48 89 7B 18 48 8B D3 48 8B 07 48 8B CF FF 50 40 48 8B 43 38 48 85 C0 74 0C 48 8B 4B 30 4C 8B C7 48 8B D6 FF D0 48 8B 74 24 38) // should be unique
alloc(newmem,$1000,"theHunterCotW_F.exe"+2BC8D9)

label(code)
label(return)
label(exit)

newmem:
cmp byte ptr [rbx+B0],0
je code
push rcx
mov rcx,[theHunterCotW_F.exe+2BB789]
mov rcx,[rcx+18]
mov rcx,[rcx+10]
mov [rcx],#527526523 //example of value that i want to insert
mov rdx,rbx //part of original code
jmp exit

code:
mov [rbx+18],rdi
mov rdx,rbx
jmp return

exit:
pop rcx
jmp return

AnimAnim1:
jmp newmem
nop
nop
return:
registersymbol(AnimAnim1)

[DISABLE]

AnimAnim1:
db 48 89 7B 18 48 8B D3

unregistersymbol(AnimAnim1)
dealloc(newmem)
I'm also try to make it somehow another, but it anyway cause crash:
Show
newmem:
cmp byte ptr [rbx+B0],0
je code
push rcx
mov rcx,[theHunterCotW_F.exe+2BB789]
mov rcx,[rcx+10] //without of [+18] offset. IDK what i'm expect with this.
mov [rcx],#527526523
mov rdx,rbx
jmp exit
And another idea taken from this message:
Show
[ENABLE]

aobscanmodule(AnimAnim1,theHunterCotW_F.exe,48 89 7B 18 48 8B D3 48 8B 07 48 8B CF FF 50 40 48 8B 43 38 48 85 C0 74 0C 48 8B 4B 30 4C 8B C7 48 8B D6 FF D0 48 8B 74 24 38) // should be unique
alloc(newmem,$1000,"theHunterCotW_F.exe"+2BC8D9)

label(code)
label(return)

newmem:
cmp byte ptr [rbx+B0],0
je code
mov rax,[theHunterCotW_F.exe+2BB789]
mov rax,[rax+18]
lea rax,[rax+10]
mov [rax],#527526523
mov rdx,rbx
jmp exit

code:
mov [rbx+18],rdi
mov rdx,rbx
jmp return

AnimAnim1:
jmp newmem
nop
nop
return:
registersymbol(AnimAnim1)

[DISABLE]

AnimAnim1:
db 48 89 7B 18 48 8B D3

unregistersymbol(AnimAnim1)
dealloc(newmem)
So maybe someone know how this code should looks like? Or maybe in your bookmarks you have link for good guide? I can't find any real explanation about how to insert value in dynamic pointer with script, where will be explained what logic should be used.

UPD:
I guess i figure out why game crash even if some of this code is correct. Instruction also send separate values for head animations and, probably, status (eat, drink, walk, calm) and even maybe something more. So the problem may be that i need to do here one or few more compares.

User avatar
seikur0
Expert Cheater
Expert Cheater
Posts: 51
Joined: Sat Aug 26, 2017 10:48 am
Reputation: 29

Re: Insert value from script in pointer taken from Structure Dissect?

Post by seikur0 » Sun Sep 24, 2017 2:32 am

Try this:

Code: Select all

newmem:
mov [rbx+18],rdi //was missing for player path, probably crash reason
cmp byte ptr [rbx+B0],0
je code

mov rdx,[theHunterCotW_F.exe+2BB789] //use rdx since that gets overwritten at the end
mov rdx,[rdx+18]
mov [rdx+10],#527526523

code:
mov rdx,rbx
jmp return
Also set a breakpoint at the jump and step through it to make sure the pointer path is correct.

pigeon
Cheater
Cheater
Posts: 30
Joined: Sat Mar 04, 2017 11:37 am
Reputation: 3

Re: Insert value from script in pointer taken from Structure Dissect?

Post by pigeon » Sun Sep 24, 2017 1:48 pm

Thank you! Did not notice that i miss "mov [rbx+18],rdi". Unfortunately, game anyway crash and after few more tests now i see that this is because that instruction is very whimsical. It required to find unique cmp for animals and cut off heads, cameras, status, player and something other and if send wrong value to any of this, for example, when you want to check "cmp" - game crash. Another problem with this one is that when you even try to find value for everything of that and freeze them - game may crash too.
Will see if i will able to find another, more friendly instruction.

Post Reply

Who is online

Users browsing this forum: No registered users