READ MORE However, the video would only begin playing when a user started browsing - so they may attribute the slowdown to just their general web surfing. Other signs of the scam taking place, according to the makers of the Yandex Browser, was occasionally sounds from the video can be heard in the background. Kaspersky also said affected extensions were capable of 'intercepting' access to a social network, likely to help inflate like counts later on. At the time of writing, extensions that Kaspersky highlighted such as Frigate Light and Frigate CDN which were on the Chrome Web Store have now been delisted.