Criminals are using the Tor browser — long a favorite of privacy-conscious users — to steal Bitcoin from their victims, researchers at ESET have discovered. The campaign, aimed at a Russian-speaking audience, uses a number of steps to convince users to install a weaponized version of Tor masquerading as the official Russian-language version of the browser. From there, settings and extensions loaded with the malicious browser allow the criminals to manipulate the pages displayed to users, leading them to sites that take Bitcoin from wallets without the owners’ permission.
According to the researchers, the bitcoin-stealing campaign has been active and unnoticed for years. Anton Cherepanov, ESET senior malware researcher, notes that the Bitcoin wallets into which stolen Bitcoins are deposited have been active since 2017.
The campaign is ongoing.