Anti-Cheat Corner

[ccw 319]

Server Owners

All server owners serious about stopping hackers and cheaters should be blocking older clients.

This can be done by editing the setting in the mtaserver.conf file.

Check the latest client version numbers from here: http://nightly.mtasa.com/ver/

The Auto-update default: version number is the current release version.

The Max recommended/minclientversion: version number is the newest build which is available by automatic update. This revision is usually updated when a cheat gets blocked, so you can easily enforce patched clients.

The Auto-update nightly version number on that page is not relevant here, so forget you ever saw it

Put you chosen min client version into the mtaserver.conf like this:

<minclientversion>1.5.7-9.20447.0</minclientversion>

 

For competitive servers, it is also advisable to enable special detection (SD) #16, #31 and #32 in mtaserver.conf like this:

 

<enablesd>15,16,31,32</enablesd>

 

Other SD codes are available here: http://wiki.multitheftauto.com/wiki/Anti-cheat_guide (you can also find explanation on what each SD # detection helps prevent)

Submitting a cheat

If you know of any cheats or hacks that are not blocked by the latest release, please read this topic and submit it following the instructions there. Please know that we can detect ''undetected'' cheats with advanced heuristics and manual intervention, so it's not advised you first try to use it; it can result in a permanent, global MTA ban with your only chance to return (not even guaranteed) if you cooperate and forward the cheat.

Reporting a suspected cheater

If you've seen blatantly obvious cheating or received many reports on a player, feel free to send a PM to both of these members: ccw, Dutchman101 including the MTA serial of said player, so we can investigate (even if it's still undetected we can most often accurately determine the type of cheat, in this very rare case knowing MTA's hardened anti-cheat state we'll greatly appreciate a tip-off like that). As a favour in return, we will often be able to tell you if your suspicion was right (whether or not he was really cheating) so you can use that in your own administrative decision on what to do with the player for your server's concern.

For more information regarding the MTA anti-cheat, read this topic and open the spoiler at the bottom of said topic.

AC Panel resource

AC Panel is a helper resource to view/manage your servers anti-cheat settings (including easily switching minclient version) that may be useful to you:

https://community.multitheftauto.com/index.php?p=resources&s=details&id=6242

[Mdbelen 0]

From which version on is this supposed to work? Because it seems that it doesn't work with the latest rc.

I have 1.0.4-rc-2425 on Linux and after adding this line ("1.0.4") to mtaserver.conf and restarting the server, there's still players with old clients shown in the admin panel.

Or is it probably just a stupido mistake of mine again??

[ccw 319]

Thanks for info.

You are correct.

I have fixed original post.

[Arran 24]

A problem I found was that too many people are still using old versions like 1854 and claim that they have never seen a GUI asking them to update so it made restricting old versions of 1.0.4 infeasible.

We tried this after finding out about the ammo cheaters but had to sacrifice security because not enough people were updating their games and only a mandatory update could help that or 1.1.

[ccw 319]

Below is what you see with 1854 when joining a server which requires a later version. I would question players who claim not to see this. (Bear in mind that 1854 was the last released version before the anti-cheat was ramped up).

[Arran 24]

I'll try the minclientversion next restart then, the way I was doing it was kicking players after they'd joined who had older versions (had to remove it after an hour as it affected so many people still using older versions) simply because restarting the server when people are playing isn't practical.

[ccw 319]

Updated the first post to make things clearer and include 1.0.5

[Phat Looser 1]

Whats up in 1.1?

[12g 2]

Am I wrong or there is no way to use cheats on 1.1 atm?

[Phat Looser 1]

There is a teleport cheat, and I am trying to program some cheats as a proof of concept again to give them to ccw.

[ThaD4N13L 0]

Does 1.1 + disable the sobeit mod/hack?

[Phat Looser 1]

Yes.

[IIYAMA 1,184]

Teleporting player cause by high ping or unstable ping. Can this be stopped by using anti cheat scripts?

[Phat Looser 1]

It can be, but atm I'm not working on that.

The most efficient way is to check the distance with the (velocity of a player)*15 each 250 ms serverside and to check the ping fluctuations.

[IIYAMA 1,184]

This is cause by a timed out for arround 0.3 seconds or more/less right?

The next moment they are next to you, because the client is sending data again to the server.

Is it possible to check player their timed outs? and can this be solved with setElementPosition?

[Phat Looser 1]

What I was trying to say is to check the stuff above server side. I once thought about setting the player's gamespeed to 0.1 for a short time to re-sync him, sort of. Or to freeze him for 1 second.

[ccw 319]

AC Panel resource

AC Panel is a helper resource to view/manage your servers anti-cheat settings:

http://community.multitheftauto.com/ind ... ls&id=6242

[IIYAMA 1,184]

CCW is it still possible that players are able to cheat?

[ccw 319]

I expect it is possible for someone to cheat by using something we don't know about.

If any server owners see suspicious players activity, please PM me the details.

[ccw 319]

Higher min client version is now available and includes new detections:

<minclientversion>1.3.1-9.05105</minclientversion> 

For slightly more detail: http://wiki.multitheftauto.com/wiki/Anti-cheat_guide

[IIYAMA 1,184]

Will the new detections require more data transfer? Or is it full client side?

[ccw 319]

It's a secret!

[IIYAMA 1,184]

aha,

Well it works very good, I haven't seen hackers since circa 2009.(I am not sure if that is the right year, maybe 2008 too)

[Quited 0]

.

Edited May 12, 2014 by Guest

[ccw 319]

Higher min client version is now available and includes new detections:

<minclientversion>1.3.1-9.05174</minclientversion> 

For competitive servers, it is also advisable to enable special detection (SD) #16 in the mtaserver.conf like this:

<enablesd>16</enablesd> 

NOTE: SD #16 requires server version 1.3.1-9.05097 or higher

Other SD codes are available here: http://wiki.multitheftauto.com/wiki/Anti-cheat_guide