On Monday morning Kaspersky published new evidence of technical similarities between malware used by the mysterious SolarWinds hackers, known by security industry names including UNC2452 and Dark Halo, and the well-known hacker group Turla, believed to be Russian in origin and also known by the names Venomous Bear and Snake.

In just the last three years, Raiu says Kaspersky has found DarkHotel using three zero-day vulnerabilities beyond the five now linked to the group based on Google's blog post.

Attackers compromised Asus’s Live Update tool to distribute malware to almost 1 million customers last year, according to initial findings researchers at the threat intelligence firm Kaspersky Lab disclosed Monday.