Deceiving domain - mainsourceofupgrade.best

Mainsourceofupgrade.best is the website that displays false notifications about software updates and required installations, but interaction with such messages leads to PUP infiltrations. Redirect to the site appears out of nowhere, and several pop-ups occur immediately after. Notifications state about the latest version of Flash Player or another software available and necessary to install on your machine. According to the message, this is needed for content viewing purposes.

The domain is related to a PUP that causes mainsourceofupgrade.best redirects and social engineering messages. Some of the pop-ups state that no restarting is needed during such updates, and users are instructed to download the version of a program as soon as possible. 

The updater file download launches quickly, and data gets installed on the machine. However, instead of a proper installer or program update, users get potentially unwanted programs or more serious malware applications loaded on the computer. This is considered to be a website involving scams.

Name of the site	Mainsourceofupgrade.best
Type of the threat	Adware/ Scam
Distribution	Freeware bundling method and deceptive techniques involving other PUPs, shady online content and similar scamming campaigns lead to infiltration of potentially unwanted applications that cause such behavior and redirects
Danger	Advertisers use tracking methods and obtain information about visitors to generate more personalized advertisements and pay-per-click revenue. Such ad-tracking leads to privacy issues

mainsourceofupgrade.best violations

2CR-015: The site is included in the database of antivirus tools

2CR-007: The page shows notification about needed update to keep the visitor on the site