U.S. and UK government websites infected with crypto-mining malware

An analyst looks at code in the malware lab of a cyber security defense lab at the Idaho National Laboratory in Idaho Falls, Idaho September 29, 2011. REUTERS/Jim Urquhart (UNITED STATES - Tags: BUSINESS LOGO CRIME LAW MILITARY POLITICS SCIENCE TECHNOLOGY) - RTR2S0ON

Vastavam web: Thousands of websites, including ones run by U.S. and UK government agencies, were infected for several hours on Sunday with code that causes web browsers to secretly mine digital currencies, technology news site The Register reported.More than 4,200 sites were infected with a malicious version of a widely used tool known as Browsealoud from British software maker Texthelp, which reads out webpages for people with vision problems, according to The Register.

The tainted version of Browsealoud caused inserted software for mining the digital currency Monero to run on computers that visited infected sites, generating money for the hackers behind the attack, The Register said.Representatives of the U.S. and British law enforcement agencies and Texthelp could not immediately be reached for comment.