claniraq
A new exploit has been circulated amongst hackers that allows for a custom map to execute arbitrary code on a client and install trojans/viruses/keyloggers outside of the warcraft III engine. So far it has targetted public dota games in particular; hackers created fake dota maps that use the same file extension/directory as DotA 6.59d, and therefore you will see the loading screen displayed in your custom game list and it is effectively impossible to take precautions against, as it has no discernible difference from joining a normal DotA game. Therefore it is highly recommend that you stop playing public dota games until blizzard can patch this exploit. They have already had it brought to their attention.'

For those who doubt how dangerous this is; by mimicing dota, anyone who has already downloaded the legitimate map will see the game displayed in the custom game screen with the proper loading image, and it finishes downloading before you switch to the game lobby screen, as it is a tiny file size. Once you enter the game, the virus will unpack itself and infect your computer, allowing malicious code to be executed at the whim of the hacker.

Props go to Maged@Battle.net forums for bringing this to attention.
http://forums.battle.net/thread.html?topic…58&sid=3000


Don't join games of DotA hosted by people you don't know. This applies to public games, TDA, etc
The best precaution you can take at the moment if you want to continue to play DotA, is to keep your Warcraft III maps folder open, and see if any new files are downloaded when you join a game. If they are, immediately leave the game lobby, before the host can start the game (and infect you), and delete the new map file. If your computer has been infected, you should run the best antivirus software you can find, and Don't log into any accounts on your computer, warcraft III, email, etc, as there is a high probability of getting your password keylogged. If you are certain your computer is infected, the only surefire way to eliminate it is to reformat your computer.


The only safe thing to do at the moment is to not play DotA or any other custom map.