Cheat Engine

[CrossBreed]

What if my game detects invalid values?

Title: Fatal Error
"Bad Character Data"



It only detects it just before i enter the game.

[v3in.]

Bump because similar shit happens to me on Rubies of Eventide.

My error is: "Invalid Statistics"
or: "Inadequate DP for skills."

I'm amazed at the fucking lack of support here as I know there's a work around for this, but no one bothers to help.

GG.

[CrossBreed]

If I NOP this LINE,

[Slugsnack]

You can't just NOP a stack push since you will eventually corrupt the stack and fuck the whole program, very likely resulting in a crash.

Look at it this way, there is a CALL after that push eventually. Different functions take a different number of paramaters that are pushed onto the stack before the call is made. So if you just NOP one of the PUSH's then what happens is that when the call tries to look for that parameter, it will not find it but will use the last push that happened before that instead. Now that push that was used must have been for something else and now that function can not find the parameter it is looking for either. Now if you hit a RET or something, it knows where to return to via the stack holding the return address but if it's not there it is most likely going to be an invalid pointer or a pointer to somewhere that is incorrect.

If you want to get rid of the call you must NOP all the parameter pushes that that function takes as well as the actual call itself.

And still depending on how 0x787230 is accessed that might not necessarily help. For example, there is probably calls to that function elsewhere or maybe even a JMP to it.

@v3in : This topic has been up for 2 days and nobody will be able to help given the vague, incomplete information you have both given. Those are just ambiguous error messages and for all we know it could mean your graphics card isn't supported or something. It is simply a string that the game designer has made display upon a criterion. If we don't know the criterion nor what you are trying to do, how are we supposed to help you ?

Maybe start using your brain and give sufficient info for someone to help before you start complaining about people not helping you. The help given (or not) to you is entirely optional. Nobody gets anything out of helping you. So be grateful for what help you can get.

[CrossBreed]

in my game before i can enter the world, i must click on a button. when i click on it, the game sends the data to the server, but before that, it will check for invalid values and show a popup window telling me bad character data passed for character creation if i inputed bad values.

Ok I will try to chronologicaly tell you whats up.
1. I opened up CityofHeroes with OllyDbg
2. I did a search for a binary string "Fatal"
3. I highlighted "Fatal" and did find references to this block
4. One popped up!

[Slugsnack]

That most likely won't do anything. You will just block the message that the game gives even though it still has an error and closes on you or whatever. To prevent the error ever occuring, you would need to trace back to find the check(s) that decide whether or not that error message is displayed.

[v3in.]

[Monkeys]

Yes he is.
And I am too.
If you do not give a propper explanation of the error, we're not able to give you a propper advice.
But if you insist on getting help with that info given to us:
Get a new graphics card. [THIS is a joke, for I'm playing out Slugsnack's statement that it could even be your gfx card ]


Now you can either choose:
1.Do not give any more information, and therefor not get any more help.

2.Give us the required information and we'll see IF we can help you.

What do you choose?

[v3in.]

Of course I'm going to choose option two.

And as for the "error" it's nothing to do with my graphics card..


When you begin to create a character on Rubies of Eventide, you're given a default of 1500 Development points to distribute to your individual skills. You also have 40 Attribute points to distribute to your four attributes: Strength, Constitution, Dexterity, and Intelligence.

If you pick a special class, a lot of the time some of your 1500 Development points will already be distributed amongst your skills.

It's kids play to edit these and make them 999 and etc..

[Monkeys]

There are two possibilities:

1. Client sided check
2. Server sided check

1. There might be a checksum installed. It adds up all 4 stats, and all skills, to see if it matches the 40 and 1500.
To find this you can do basic memory scanning with Unknown vallues.
(Unknown vallue; change a stat: Changed Vallue; change it again, etc...)
And then freeze those addresses at 40 or 1500, or change the codes reading from those to stop the action.


2. Nothing you can do against this, sorry.
You can check if it's server sided by using a packet editor.
Try and make a hacked character while recording packets.
If it does send a packet with the hacked stats and then you get the error it's serversided, if not then it's not

[CrossBreed]