AMSTERDAM - Illegal copies of Windows 7 have been infected with malicious software that enables cybercriminals have created a botnet of thousands of PCs.
Researchers at security firm Damballa opposite eWeek. Damballa says the network have already switched off.
Botnets are networks of computers infected with a virus for example. The PCs, also known as 'zombies' can then be exploited by hackers for illegal activities such as spamming or intercept bank details.
Such viruses often hitchhike along with illegal copies of software. Since late April circulating on download sites infected pirated versions of Windows 7, the new operating system from Microsoft that in the autumn to come on the market.
Tripp Cox, Damballa tells eWeek that botnet before it was shut consisted of at least 27 000 zombies.