Viruses
Can a Steam game get infected with viruses? If so, how are they removed? Because I downloaded a mod for RE4 (2005) and I believe it had a Trojan included in it. If I redownload Steam to a new pc and redownload RE4, will the viruses redownload as well? Resume their attacks?
< >
Showing 1-15 of 20 comments
Aachen Jul 8, 2024 @ 11:53am 
:kentconfused: In that case wouldn’t it be the mod which was infected?
pckirk Jul 8, 2024 @ 11:58am 
Games on Steam, that you download, are virus free.

You are responsible in preventing Viruses etc. by what you download and install from ANY website.
cSg|mc-Hotsauce Jul 8, 2024 @ 11:59am 
Originally posted by v0idwalker138:
Can a Steam game get infected with viruses? If so, how are they removed? Because I downloaded a mod for RE4 (2005) and I believe it had a Trojan included in it. If I redownload Steam to a new pc and redownload RE4, will the viruses redownload as well? Resume their attacks?

External mods you download offsite are use at your own risk.

But they don't transfer between devices.

:cool_seagull:
Overseer Jul 8, 2024 @ 12:02pm 
If you make the same mistake of re-downloading the malicious software from an unknown source and install it again as well then yes.
If you just stick to the official sources then no. At least it is very unlikely to ever receive malware from Valve directly, but not impossible.
Games you download via Steam come from Valve servers only and you can not alter those. You yourself would have to add malware later.
Make sure to only use official and trustworthy software and check downloads via www.virustotal.com
v0idwalker138 Jul 8, 2024 @ 5:00pm 
Yes I was aware of the risks, but at the time the mods and trainers seemed legit. But every one I got from Nexus Mods seemed sketchy, even if it was supposedly posted by the original mod creator.
Iron Knights Jul 8, 2024 @ 5:09pm 
Depends how bad the virus and how deeply it infected your system. What did you do to remove it ? Yes, repeating your actions, such as downloading the same virus "mod" will re-install the virus on an otherwise clean system. Nexus is not Steam is not RE4, I'd suggest you avoid it.
ペンギン Jul 8, 2024 @ 5:14pm 
Originally posted by v0idwalker138:
Yes I was aware of the risks, but at the time the mods and trainers seemed legit. But every one I got from Nexus Mods seemed sketchy, even if it was supposedly posted by the original mod creator.
As Overseer said, check the results at Virustotal, Jotti's malware scan is still available or Microsoft Security Intelligence. There are more providers. Each of these platforms can deliver different results. The same for Anti-Virus. Sometimes it is simply due to a lack of software-signatures and awareness of software.

The truth often lies somewhere in the middle, especially in this business. Many of these providers also deliberately make false statements regarding the so called dangers, as they are primarily concerned with their own profit interests and not with the protection of the users environment.

Therefore, make sure to check different sources to be on the safe side. And if you are completely unsure, test stuff in a sandbox/vm first.
Last edited by ペンギン; Jul 8, 2024 @ 5:19pm
v0idwalker138 Jul 8, 2024 @ 6:06pm 
Originally posted by Iron Knights:
Depends how bad the virus and how deeply it infected your system. What did you do to remove it ? Yes, repeating your actions, such as downloading the same virus "mod" will re-install the virus on an otherwise clean system. Nexus is not Steam is not RE4, I'd suggest you avoid it.
I ran several virus scans to try and remove it. It’s been three years since then. I don’t remember the whole details. One of the viruses was called “Occamy”. I think it was the one that was injected alongside the RE4 Ultimate Trainer by Raz0r on Nexus Mods. I think it was either my actions or the viruses that fried my old pc.
Wouldn’t using a new pc, a new Windows OS and redownloading Steam mean I’m clean? I don’t think the virus can be stored and redownloaded through Steam’s own files… but idk.
v0idwalker138 Jul 8, 2024 @ 6:10pm 
My Windows security also flagged RE5 as it wanted to have firewall breaching privileges. Seemed kinda sketchy to me too. But it was a game I bought from Steam, so I let it go.
magicISO Sweden Jul 8, 2024 @ 7:37pm 
Originally posted by v0idwalker138:
My Windows security also flagged RE5 as it wanted to have firewall breaching privileges. Seemed kinda sketchy to me too. But it was a game I bought from Steam, so I let it go.
classic false positive its like ppl forget about this
Waryth Jul 8, 2024 @ 8:51pm 
This was a massive issue back in the day in Left 4 Dead 2 modded servers. You join a server and malicious files gets downloaded to your game client through Steam. There's literally no way to filter modded servers and a vanilla ones so you're bound to get it sooner or later.

I forgot what happened, It was a really old issue and I simply just stopped playing then the rest was history.
Cray Jul 9, 2024 @ 5:06am 
Don't know how RE4 works and whether it's prone to re-download content once you've installed it, so you'd have to check on that.

It could, potentially, also store something in your steam cloud save, but it's hard to say without knowing how the game works, etc. Unlikely, but not impossible.

And to answer your question "can steam games contain malware?":

Yes. They can. As in: it's technically perfectly possible,

but afaik. it hasn't happened yet because there are controls in place to prevent it. Software and games get scanned and tested (automatic sandbox runs, etc.) before being let onto the steam download network, and the person registered as the game publisher/developer needs to go through a process before selling stuff, and is legally responsible for what they put on there - in other words it would be hard to get away with.

But of course, in essence it's just like "could microsoft send an update that wiped my computer?", of course they could. It's just very unlikely and it wouldn't be in their interest (there are more profitable ways to screw you over :). I know this may not be precisely the essence of your question, but thought I'd point it out since it's technically relevant.

Take the advice everyone else here has given: don't download shoddy trainers and mods from 3rd party sites. Even if the site itself is legit there's just no way they have the capacity for vetting every dev/uploader and properly scanning everything that gets uploaded. More serious projects and sites have suffered problems far worse, that should give you an idea.

Also, remember that if you've downloaded other software of any kind, at any time, you won't any longer know if it was the RE4 mod or something else that caused this. Plenty of malware will sleep for a while and do nothing for days, weeks or months, to obfuscate where it came from and what caused it. Once you've downloaded two or more things that aren't trustworthy, you'll have no idea where the problem really originated. Could be the first one, could be the second one, could be the first one waiting until the second one can take the blame.

ps: something showing up as 'clean' on virustotal is never a guarantee, it's just an indicator. Just because it doesn't get detected doesn't mean there's nothing there, it just means that the malware scanners couldn't find anything - yet. Malware keeps finding new ways to hide, and scanners keep catching up to it, it's a cat and mouse game and always has been.
Liquid Inc Jul 9, 2024 @ 5:50am 
Originally posted by v0idwalker138:
Can a Steam game get infected with viruses? If so, how are they removed? Because I downloaded a mod for RE4 (2005)

Said mod would be at fault (Unless via the Steam Workshop, since i believe that stuff is scanned) If it's not part of the base install, it shouldn't redownload.

I don't know how RE4 works under the hood, but if your installed your mods via Nexus (Which shouldn't have viruses either, given they scan a lot of the mods hosted, and those that do slip through are taken down pretty quickly. Dodgy and/or stolen mods rarely last more than a day.) you shouldn't worry there either...

Originally posted by v0idwalker138:
Yes I was aware of the risks, but at the time the mods and trainers seemed legit. But every one I got from Nexus Mods seemed sketchy, even if it was supposedly posted by the original mod creator.

Every single one? That seems unlikely. One i can understand could slip through, but there are RE4 "trainer" mods (from a quick look) that have been up for years with many users.. If they had anything in them, said mod would have been taken down by the Nexus team a long time ago.

Originally posted by v0idwalker138:
I think it was the one that was injected alongside the RE4 Ultimate Trainer by Raz0r on Nexus Mods. .

Seems odd that only you had that issue. If that's the one im looking at, it's got 100k downloads and Nexus themselves have also scanned the files. It's been hosted for 4 years.
As someone back in 2022 said, their's was flagged as a virus, but it's a false positive due to how trainers work.
These things inject code into a running process (Just as a virus can) which is why it's flagged.

Honestly, i wouldn't use these kinds of mods, but getting it from Nexus is the safest place your going to find it due to the check they do on said mods. If your getting stuff from a google drive, then yeah, you run that risk, but not truly with Nexus. It's possible, but the % is so low on the mod that's been up *4 years.*

Originally posted by v0idwalker138:
I believe it had a Trojan included in it.

This is the issue though. If it had a trojan, and it actually destroyed your OS, then something was very bad. I don't think it was Razorrr's mod that was at fault, nor was it the Steam install you had, so, i'd start by looking at everything you did around that time. Sites you visited, even if it was just one covered in intrusive adverts (like social media) as all of those could have been the attack vector.
Did you know they can hide malware in images? The code is split and spread through the image file, and it's loaded as the image is loaded.
Just one of the many ways they hide viruses and malware like Cray said in the post above.

Even MS gave out a Pseudo virus not long ago, when an update caused some PC's to go into an endless restart loop. It might not have been intended, but the effect was there all the same....
Something else was wrong here, and im sure it's not Steam or that Razor mod at fault...

(edit because Steam broke the post....)
Last edited by Liquid Inc; Jul 9, 2024 @ 5:53am
OP broke the .dll pathing - common user error when new to modding. :csd2smile:
v0idwalker138 Jul 9, 2024 @ 7:04am 
Originally posted by The Incredible Magical Cupcake:
OP broke the .dll pathing - common user error when new to modding. :csd2smile:
I’ve been out of the pc scene for too long and I don’t remember the details on what I did.
< >
Showing 1-15 of 20 comments
Per page: 1530 50

Date Posted: Jul 8, 2024 @ 11:48am
Posts: 20