Cheat Engine

Psychopaths · How do I cheat? Reputation: 0 Joined: 12 Oct 2014 Posts: 9

I only have experience with pretty basic Cheat Engine hacking.

There's this one game that I can edit the values of with CE (visually only) which don't actually affect the gameplay of. So I'm assuming the games' values (attack, gold, etc.) are all server sided.
However, there's a certain quest which only allows a certain amount of tries per day. I was able to change my PC's clock, which the game took as a different day, and so I was able to retry the quest. (Don't know what that was about.)

Anyway, I was wondering if learning more about WPE would allow me to be more successful in hacking the game. For example, sending a packet to the server telling it that I do have enough money for buying a certain item. Or telling the server that I picked up 1,000 gold instead of 100, etc.

Am I totally misunderstanding what packet sending and sniffing can do?

atom0s · Posted: Sun Oct 12, 2014 11:45 pm Post subject:

In most games things will not be that poorly coded where you can just say what you picked up. Instead, you would inform the server that you are attempting to pickup an item with a given index in the world. The game server would then validate if that item even exists where you are located trying to pick it up and so on.

However in some cases, the game server does not always validate such things. In some games you can send a vendor packet over and over saying you are selling an item to a vendor that you no longer have and game server will honor it assuming you did without validating you had the item still. It's a matter of trial and error at that point to play around and see what you can do with the game at hand to find the flaws in the servers code.

Things like experience are typically not hackable at all since its something calculated on the server when you kill a monster. However, some games do have items that you can use to gain a set amount of experience and sometimes you can resend the item use packet to gain experience you shouldn't have gotten.

Psychopaths · How do I cheat? Reputation: 0 Joined: 12 Oct 2014 Posts: 9

zm0d · Posted: Mon Oct 13, 2014 4:08 am Post subject:

Psychopaths · How do I cheat? Reputation: 0 Joined: 12 Oct 2014 Posts: 9

atom0s · Posted: Mon Oct 13, 2014 1:07 pm Post subject:

In those instances you will need to start analyzing the packet data if they are unencrpyted. It comes a matter of determining if the packets are protected in some fashion from being replayed like that. If they are encrypted, you are going to go have to go about doing things differently and get into hooking functions within the game to handle the packets then.

If not, then you just need to see what the packet contains and if there is some syncing mechanic in place. Such as a timestamp or packet count when you are trying to replay a packet to prevent the same one from being reused.

Either way, they could have the protection in place on the server to prevent it altogether so you may just be out of luck no matter what.

Psychopaths · How do I cheat? Reputation: 0 Joined: 12 Oct 2014 Posts: 9

atom0s · Posted: Mon Oct 13, 2014 7:19 pm Post subject:

The packet you receive is not what you would want to replay. You would want to resend the packet you sent to the server while selling the item to the vendor etc.

Psychopaths · How do I cheat? Reputation: 0 Joined: 12 Oct 2014 Posts: 9