First if this is mentioned elsewhere apologies.
Also Aslain I know you're not responsible for what's in other folks mods that you include in your pack. And I'm not suggesting you are, just passing along some info. And thanks for all you do on your site.
Link to TAP's article, https://thearmoredpatrol.com/2018/02/20/wot-potential-security-breach/
Just ran into this myself - at least it seems.
Couldn't update WoT and got the couldn't connect to update service. Soon after my AV blocked a suspicious connection to a similar IP listed in the article. May have been the same IP I know the first handful of numbers were. But I didn't write it down nor have I checked my AV history.
Deleted my appdata for WoT and was able to update the game. Did this based on some comments in the TAP article even though I didn't see anything in there that looked suspicious.
Also before I deleted the appdata folder I was getting partial pages on WoT forum that appeared to be from packet loss. Also couldn't connect to a few other sites. ISP speeds were fine, but to clarify I only checked speeds not packet loss, etc..
After I deleted the appdata everything seems fine - at least for now.