COLDRIVER, also tracked as Callisto, Star Blizzard, and UNC4057, is the moniker assigned to a Russia-linked threat actor that's known to target a wide range of sectors since 2019. While early campaign waves were observed using spear-phishing lures to direct targets to credential harvesting pages, the group has been fleshing out its arsenal with custom tools like SPICA and LOSTKEYS, which underscores its technical sophistication.
FileFix is a variation on ClickFix, a newish type of social-engineering technique first spotted last year that tricks victims into running malware on their own devices using fake fixes and login prompts. These types of attacks have surged by 517 percent in the past six months, according to researchers at antivirus and internet security software vendor ESET, making them second most common attack vector behind phishing.