Microsoft: Adrozek has been attacking Microsoft Edge, Google Chrome, Yandex Browser and Mozilla Firefox since at least May. Microsoft believes hundreds of thousands of devices could be affected by the Ad-Injecting Malware. The malware is installed on a device via a drive-by download when a user inadvertently visits one of the malicious domains controlled by the attacker. Microsoft: Anyone finding the malware on their device must reinstall the browser to eliminate the threat. The attackers have created 159 unique domains each hosting more than 17,000 unique URLs.”]
Source: https://www.cuinfosecurity.com/adrozek-modifier-affecting-edge-chrome-firefox-browsers-a-15579