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Turkeychopio
Cheater
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Joined: 06 Aug 2014
Posts: 36
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 Posted: Wed Aug 06, 2014 12:00 pm Post subject: Fog of War hacking on games |
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I was wondering if anybody could help me hack the value for disabling the fog of war on certain games. I'm not sure what value if would come under of if it's possible in the first place only using scans and replacing codes with nuls.
If anybody knows of a way to disable said fog pleast reply 
-Turkey
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Dark Byte
Site Admin
 Reputation: 473
Joined: 09 May 2003
Posts: 25900
Location: The netherlands
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| Posted: Wed Aug 06, 2014 3:35 pm Post subject: |
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it's not easy and it's different on each game.
perhaps the fog of war is implemented as a dynamically updated image that's overlayed over the map
If that's the case then try a hashing custom type
e.g:
| Code: |
alloc(ConvertRoutine,1024)
alloc(ConvertBackRoutine,1024)
alloc(TypeName,256)
alloc(ByteSize,4)
alloc(UsesFloat,1)
TypeName:
db '4KB Hash',0
ByteSize:
dd 1000
UsesFloat:
db 0 //Change to 1 if this custom type should be treated as a float
//The convert routine should hold a routine that converts the data to an integer (in eax)
//function declared as: stdcall int ConvertRoutine(unsigned char *input);
//Note: Keep in mind that this routine can be called by multiple threads at the same time.
ConvertRoutine:
//jmp dllname.functionname
[64-bit]
//or manual:
//parameters: (64-bit)
//rcx=address of input
//convert the data in rcx+0 to rcx+fff into a crc value
mov rax,cececece
push rsi
mov rsi,rcx
mov rcx,1000-3
label(calculate)
calculate:
xor eax,[rsi]
add rsi,1
loop calculate
pop rsi
ret
[/64-bit]
[32-bit]
//jmp dllname.functionname
//or manual:
//parameters: (32-bit)
push ebp
mov ebp,esp
//[ebp+8]=input
//example:
push esi
push ecx
mov eax,cececece
mov esi,[ebp+8] //place the address that contains the bytes into eax
mov ecx,1000-3
label(calculate)
calculate:
xor eax,[esi]
add esi,1
loop calculate
pop ecx
pop esi
pop ebp
ret 4
[/32-bit]
//The convert back routine should hold a routine that converts the given integer back to a row of bytes (e.g when the user wats to write a new value)
//function declared as: stdcall void ConvertBackRoutine(int i, unsigned char *output);
ConvertBackRoutine:
//jmp dllname.functionname
//or manual:
[64-bit]
//parameters: (64-bit)
//ecx=input
//rdx=address of output
//example:
ret
[/64-bit]
[32-bit]
ret 8
[/32-bit]
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this type you can use with changed/unchanged scans only.
Do an unknown initial value scan.
Then reveal some of the map and do a changed value scan.
Then try to do something that does not change the fog of war and scan for unchanged.
Repeat till you have a handful of results
Then look at the memory and it may give an idea what is going on.
Tip: Use the graphical memory view and look at the memory. With the proper alignment slider you may be able to find the fog of war overlay at the address ranges you've found (if the slider is at the wrong position it will look distorted, but your brain might help you figure it out anyhow)
When you've found it, try finding what writes to it, and then write some code that clears the whole map (or use a pointer and a script that blanks that memory)
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smartsoldier123
How do I cheat?
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Joined: 11 Mar 2015
Posts: 3
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| Posted: Thu Mar 12, 2015 8:58 am Post subject: |
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| Would you be able to write a specific version of this for Age of Mythology?
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masterkill7
Newbie cheater
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Joined: 07 Mar 2015
Posts: 10
Location: Baku
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| Posted: Thu Mar 12, 2015 9:49 am Post subject: |
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Dark Byte, why my posts reseted ?
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I'm very impatient . Sorry for my error  |
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