Some of the pirated builds include a Trojan horse, users said in message forums and in comments on BitTorrent sites such as Mininova.org.org. Researchers have spotted notable code overlap between the Sunburst backdoor and a known Turla weapon. Researchers at Recorded Future report a rise in cracked Cobalt Strike and other open-source adversarial tools with easy-to-use interfaces. Read the full story in this article by CNN Tech Heroics Project Newsdesk.com.
Source: https://threatpost.com/leaked-copies-windows-7-rc-contain-malware-050409/72630/