Cheat Engine

[zeedarkjster]

So I am just a beginner at hacking.
I did the tutorials and I hacked some easy flash games, so I decided to try hacking Left 4 Dead.

I tried to tackle infinite ammo first here are my steps
1) scan for unknown value
2)then go to the game and shoot a round
3)scan for decreased
4)repeat to scan for variables
5)now in this case cheat engine detects more than 1 address depicting the changed value.
So if i have 32 ammo left there are like 5 addresses with 32 ammo

6)I look for what writes to this address and some of these addresses already have something filled in, before I shoot. So I assume that those don't work
7)Find one that is empty, alt-tab shoot, and back some variables change
8)What worked was then freezing the address I would then get infinite ammo.
9)But I want to make a trainer where everytime I load it it would work, because right now the address changes evertime I reopen this game.
10)So I try looking for pointers but I'm having trouble
any suggestions?

[Labyrnth]

OK< You have done good so far.

Just need to learn a little assembly, or find the pointer.
I would pointer scan for level 4 and see what you get.

Or you can do what writes, or access's the address you freeze to see what you get.
I would try "writes" first since it could give you a single instruction to look into.

When you find it, you can look at it in memory view and scroll up about 5 instructions then post a screen shot maybe for more help.

Im sure myself or someone will help you out.
You can do a injection by making an AA script and then use that in your trainer.

[zeedarkjster]

Alright back from finals haha
so anyways I'll post some screen shots, hoping someone can tell me what I'm doing wrong. *Ugh i can't post URL's lmao any mod fix that for me?

Step 1::attach CE to L4D (Left 4 Dead)

Step 2::search for unknown value
step 3::{in game}Shoot

Step 4::{CE} Scan for decreased value

Step 5::Repeat steps 3 and 4, Occasionally not shooting and scan for unchanged value to help narrow the values down.

So after a while I am able to narrow it down to 47 address's (not impressive I know).
But I noticed that there are multiple values equal to the number of ammo in my gun.


In this session there is a total of 6 addresses that have the same value as my ammo (1.

Before I would just tick them all and sometimes it would work and I would get unlimited ammo/ no reload time.

Step 6:: But I want to learn more, so I used Dark Byte's tutorial for "what writes to this address"
I attach a debugger to any one of the addresses.


*note my game crashed so the values will be different*

Some of them automatically have a code written in it without me going back and shooting so i ignore those


There is only 1 address's that was empty when I click "find what writes from this address"

so i chose that one and went back in the game, shot, and i get the code

I open Auto Assembler and I create a script that "nop"
Pingo's Guide


Then I assigned it to cheat table, and ticked it, and Viola infinite ammo


Now I want to learn how to create like a trainer or something, if I save it as a .ct and reopen my table when I start a new game, the values don't work anymore and I have to re-find the value and re script it.
Do i have to find it using pointers?

Thanks!
*sorry if it doiesn't make much sense, I posted a lot of SS, but unfortunately I can't post them up.

[Labyrnth]

Your address's used for the AA should be static unless your getting a code shift.

So if this is happening you will need to use module+offset to counter the code shift in your AA script.

game.exe+offset: <--- this will be your address.

[zeedarkjster]

Alright So static means that the address is green instead of black right?
and the module offset is that basically pointer and offset?
so after i find the address I look up more information
if its like eax-8b and eax is like 8f9e9e0f8e
i search up hex for 8f9e9e0f8e (this was made up) then there should be 1 address, I manually add it and insert the address for it and the offset that should be the pointer right?

btw how many posts do i need to attach screen shots? or URls'

[Labyrnth]

NO, not for memory view.
Once you found what write or access the address. That assembly address should be static.
And if thats what you used in your AA script it should work and not have different address every time.

If so, then your getting a code shift. and thats just a few more steps such as looking what module your in and doing simple math to get what you need.

[coolika1]

wrong just ZF [X] [X] worked fine for me

[*Mario*]

WTF why l4d.
just use dev console.
sv_infinite_ammo 1

[-DEViL-]

LOL,he wants to hack it not using f**in console!
anyway game uses code shifting.this means every time you reopen l4d the module will be load in different locations.every thing is done in module server.dll
use aa script and module name.dll+offset--->that will always find correct address for you.

[Labyrnth]

[crackers]

i am trying to get godmode working ,but it makes the enemies invincible as well ....

any suggestions?

[Spawnfestis]

[crackers]