Cheat Engine Forum Index Cheat Engine
The Official Site of Cheat Engine
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 


Memory Integrity Test Failed:0

 
Post new topic   Reply to topic    Cheat Engine Forum Index -> General Gamehacking
View previous topic :: View next topic  
Author Message
Lemom
How do I cheat?
Reputation: 0

Joined: 19 Jul 2017
Posts: 5

PostPosted: Sat Jul 22, 2017 4:12 am    Post subject: Memory Integrity Test Failed:0 Reply with quote

Hi, i want to know how to bypass the memory integrity check.

The hack i'm trying to use is a sort of speedhack that makes me spam skills faster. When i use it inside the game everything works perfect for 3-4 seconds, then game closes itself and give me this error:

Memory Integrity Test Failed:0

Is there a way to bypass that?

Thank you.
Back to top
View user's profile Send private message
atom0s
Moderator
Reputation: 198

Joined: 25 Jan 2006
Posts: 8516
Location: 127.0.0.1

PostPosted: Sun Jul 23, 2017 2:10 pm    Post subject: Reply with quote

In most cases, memory integrity checks like this are doing one of two things:

1. Taking a snapshot of a games static memory (basically whatever is loaded directly from the exe and not allocated memory) and comparing it to what is currently live in memory. If the live copy of memory does not match the original, it will trigger the error and crash the game.

2. Uses the original binary to compare its code section to the live memory. Same as above afterward.

These are generally either done as a byte-by-byte compare, or a checksum of the memory regions. Bypassing these usually consists of either:

1. Overriding the locations the game is checking against and making it check against the same region that is modified.

2. Altering the end result CRC/hash that the game expects to match your newly edited memory's CRC/hash.

3. Hooking the function and just always returning the expected value regardless of what is being done.

In some cases, and in poorly designed checks, you can block the memory reading altogether with an invalid access return and the protection will just assume that if it can read it, nothing else could either so it should be fine.

_________________
- Retired.
Back to top
View user's profile Send private message Visit poster's website
OldCheatEngineUser
Whateven rank
Reputation: 20

Joined: 01 Feb 2016
Posts: 1586

PostPosted: Sun Jul 23, 2017 7:38 pm    Post subject: Reply with quote

atom0s wrote:

In some cases, and in poorly designed checks, you can block the memory reading altogether with an invalid access return and the protection will just assume that if it can read it, nothing else could either so it should be fine.


ehm, i never thought of changing permissions.
that can be very interesting, but can CE do that?
i know we can remove memory protection to get full access (read/write and execute) but changing permissions to write only or read only i dont know.

anyway, this is a light for me so thanks for that light atttttooooomm.

_________________
About Me;
I Use CE Since Version 1.X, And Still Learning How To Use It Well!
Jul 26, 2020
STN wrote:
i am a sweetheart.
Back to top
View user's profile Send private message Visit poster's website
Lemom
How do I cheat?
Reputation: 0

Joined: 19 Jul 2017
Posts: 5

PostPosted: Mon Jul 24, 2017 12:30 am    Post subject: Reply with quote

atom0s wrote:
In most cases, memory integrity checks like this are doing one of two things:

1. Taking a snapshot of a games static memory (basically whatever is loaded directly from the exe and not allocated memory) and comparing it to what is currently live in memory. If the live copy of memory does not match the original, it will trigger the error and crash the game.

2. Uses the original binary to compare its code section to the live memory. Same as above afterward.

These are generally either done as a byte-by-byte compare, or a checksum of the memory regions. Bypassing these usually consists of either:

1. Overriding the locations the game is checking against and making it check against the same region that is modified.

2. Altering the end result CRC/hash that the game expects to match your newly edited memory's CRC/hash.

3. Hooking the function and just always returning the expected value regardless of what is being done.

In some cases, and in poorly designed checks, you can block the memory reading altogether with an invalid access return and the protection will just assume that if it can read it, nothing else could either so it should be fine.


Oh nice, thank you. Is there a post, guide, or something i can read somewhere to learn how to do this?
Back to top
View user's profile Send private message
atom0s
Moderator
Reputation: 198

Joined: 25 Jan 2006
Posts: 8516
Location: 127.0.0.1

PostPosted: Tue Jul 25, 2017 1:36 am    Post subject: Reply with quote

Not really, most anti-cheat discussions are done in private and not public anywhere to prevent things from being fixed/patched.
_________________
- Retired.
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    Cheat Engine Forum Index -> General Gamehacking All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group

CE Wiki   IRC (#CEF)   Twitter
Third party websites