Cheat Engine

[zirkhaki]

Hey guys
I'm a noob and i had made some trainers for some games before but all of them were easy to hack

this game I mean chicken invaders 3 has made some problems for me

i found some addresses for options like Gun power and Gun health. and make them freeze by aas

another option is the "life"
i found its address and i freezed it and it didn't freez. i chose what writes to this address and a code is find

[Labyrnth]

scroll up in memory above that address you found and see if you see dec or sub.
Alter that instruction and you might have it.

Also that AA you posted is default one when going to AA in memory view.

[zirkhaki]

Thanks, I'll try that

EDIT:

first i want to say that the code that i put in my first post is the default and i changed it to somthing like

[Labyrnth]

Change:
00489C48 - 89 87 54 22 00 00 - mov [edi+00002254],eax
To:
00489C48 - 90
00489C49 - 90
00489C4A - 90
00489C4B - 90
00489C4C - 90
00489C4D - 90

See if it freezes for you. Also this could have weird effects like enemies health as well. But worth a try.

Another way is to change the value of eax before mov [edi+00002254],eax is executed.

mov eax,64 <----- moves 100 decimal to eax
mov [edi+00002254],eax
-------------------------------------------------
64 hexadecimal = 100 decimal "What you see in game"

[zirkhaki]

I did both of them. but for the first method i have a question!
Should I do it by the "Fill Memory" option and change the value to 90 for 00489C48 to 00489C4D?
because when i choose what writes to to address a code is found and when i replace it with code that does nothing, it also nop all the addresses you said and change them to 90
although I did both of them and still no result
---------------------------------------------------
EDIT:

Any help yet?
I continued my search with other methods like chandeg & unchanged options until i got 4 addresses which are dynamic but i can't find the pointer because when i search for the value of the pointer needed to find this addresses i get a blank board. (no result)

so tried to nop the address or do a code injection.
here is what I found:

4 addresses for the number of life.
after closing an reopening the game the addresses and even the values will change, so i can't do an exact value search. so what you are seeing here are all dynamic
i brought them here for you to see the similarities between the values:

the addresses for 1 life (as you see the difference between first and second one and also the difference between third and forth one is just 1 value)

[Labyrnth]

Now if you would, write a tutorial on your scans and assembly.
There are 2 or 3 other people asking about this very game in this section and wanting help on hacking it.

[samse]

I'm not wanting to hack it .. I want to learn how to hack so I'm trying to hack this random game ..

[Labyrnth]

[zirkhaki]

Good idea
I'll try to do that if i had enough time