Cheat Engine

[makopa1995]

First of all, I'm a beginner at game hacking, I honestly dream to become an elite hacker but of course, all of us starts at level 1 .

I have started to try easy hacking in the game plants versus zombies, found the gold address and manipulated the value, hopefully it worked. And by the way, i have already read the tutorials on the CE structure itself.

Then next one, i tried to hack Dota allstars by attaching Warcraft III in the process at CE, scanned the level bar of my hero namely Crixalis (Sand King) and found it. Now here's the problem, whenever i try to change the value, it returns to the original value or lets say it won't change. I have also tried to enable Speedhack and it says DLL injector fail? or something like that.

So what's the problem in here?

Sorry, I admit, i am a total noob starting at level 1.
Sorry also if this kind of thread was posted already, its just that i do not know what to search about this kind of topic.

My deepest apologies,
Any help would be much appreciated.

Thank You

[navarone]

It worked on Plants Vs. Zombies as it's a single player game and everything (including gold value) is stored on your computer's memory.

If you were playing Dota online, the exp value is stored server sided, meaning the server knows how much exp you have and the value you have stored is just for display. That's why when you change it, the server changes it back.

And speed hack doesn't normally work with online games.

[makopa1995]

ahhh, so how to bypass the server then? is it about changing the packets or checksum?

[navarone]

Make sure you read the sticky about the difference between the client and server side.

And yes, one of the options to change the values on server would be by packet hacking. Checksum and encryption are methods to protect the packets sent to the server from being manipulated.

[Dark Byte]

if packet editing works then editing it on the client with ce works just as well
The checksum is then generated based on your edited value, and the encryption is done over the edited value

Wat packets do in reality is just send commands like :"Move up","Move down","Attack facing direction x", "buy item x from npc y", "sell item x from inventory to npc y"
And you then receive packets that say:"Got attacked","Lose health x points", "Gain health x points", "Health is currently x","Money is currently x"

Sure, you can fake it where you receive a packet that says "Money is currently 99999999" but the server knows it's not

anyhow,
http://wiki.cheatengine.org/index.php?title=Server_Sided
and
http://wiki.cheatengine.org/index.php?title=Editing_Server_Sided_Values

[makopa1995]

Ahhh, got the point,
so games online involve Client - Server Sided eh?

And here's my interpretation about checksum, for example,
the hexstring? (sorry, i do not konw what those letters and numbers are called) of an address of a specific value (i.e. money) of a game is
JK HS UI OQ 2P DF (Sorry, i do now know the format etc.)
hence, you changed the value of the money using CE,
making a new hexstring? of
JK HS UI OQ 4J DF, so the checksum is 4J, and due to the mismatch,
you will get dc, so in order for that to be server sided too, you need
to edit the checksum and make it the same, to avoid mismatch and disconnection.

Am I on the right track?
And are there any ways to change server sided values? the second link you gave me was unrealistic i think. ^^

[Teh1337Bix]

Just a quick note, hex numbers only contain 0123456789ABCDEF. So no J K H S U I O Q or P