Is it safe to play League of Legends when there are files detected as viruses by virustotal.com?

I'm from Vietnam and started to play League of Legends which I have downloaded from the official site here for the Vietnamese version.

Viruses were detected when I ran a virus-scan on the files via virustotal.com.

So my question is, should I run the game when the virus-scan reports viruses?

1. FileLoader.dll
2. launcher.maestro.dll
3. CRiotLauncherElevateCOM.dll
4. LolClient.exe
5. LolClient.swf

The same virus results apply for the English version of LoL - results available here.

The files are only pinging as bad on one or two anti-virus programs and not on any of the more reputable ones. Anti-virus software isn't perfect and false positives happen.

It is far more likely that one anti-virus program is wrong about it being a virus than it is that almost all of them are. The files are probably safe.

As most of the antiviruses did not find anything harmful in the files, I would say, the remaining one may be a false alarm. I do not trust those antiviruses either. I would say since you downloaded the game from the official site and those alarm raising antiviruses are not really trustworthy(IMO), feel free to play your game.

To me, this sounds like a wrong alert. Or you downloaded something from the wrong source. Just for safety, I'd delete the game completely and redownload it from the OFFICIAL website. Riot wouldn't place any viruses in their games themselves, but maybe you tried to download a hack or something. These are usually viruses.

Note: Even if you delete it, if there was a virus, just deleting the game probably won't solve it.

I'm answering the question :

So my question is, should I run the game when the virus-scan reports viruses?

If you're sure that your machine is infected, there are two possibilities :

1. Your machine infected before you login to LoL : You shouldn't login any of your game/online accounts, the malware can be a Keylogger .
2. Your machine infected after you login to LoL : The malware can listen your connection and send the connection information to the attacker. You may trust LoL itself, because in login phase your LoL username/password is possibly going over encrypted connection. And after login, periodic 'login check' mechanism will check you through an encrypted connection. But still encrypted packets may be stripped. But this gets harder as your password gets stronger.

If you trust LoL you should keep your password strong.

And this is kinda old(2012), but worth to look at. LoL's security announcement .