i90rr wrote:Short answer: no, there's no way for a proxy to check for malware in a torrent file that is being currently downloaded.
Lately, some VPN services started to offer a sort of 'scrubbing' features intended to minimize the exposure to malware when browsing the web. This makes a lot sense since, nowadays, the main source of infections and exploits comes from connecting to alien networks (i.e., internet) or opening potentially unsafe files.
Let's be real: running a full-blown AV on your endpoint device (your laptop, desktop computer, mobile device) is usually meaningless if you pay attention to simple things and behave online the same way you would do on the streets. Even worst, most of those anti-malware solutions will likely cripple your system performance while at the same time do nasty hidden stuff by hooking to the entrails of your system. This is understandable, though, because in order to protect you, they need to have access to the low-level parts of your OS to monitor as much of the attack vectors as possible. However this comes with a price: 1) who watch these vigilantes? and 2) the aforementioned performance hit.
So, companies like F-Secure and some others have started to move the logic of scanning for malware from your endpoint device to their own servers as, anyway, when you hire their services (in this case FreedomeVPN), all your traffic are belong to them. Other companies like AdGuard or the VPN provider Private Internet Access also have their own solutions. On their backend, this is implemented as a multi-tiered stack, usually involving anti-malware conventional scanning, web bugs blockers, curated DNS resolvers and so on.
If you're positive the places you visit and the files you download could be compromised, I strongly suggest you to employ a secure browser (maybe Brave?) and always try the stuff you download in a virtual machine first.
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