Researchers use a new method to identify exploit authors that use their unique characteristics as a fingerprint to track down other exploits developed by them. Researchers were able to link 16 Windows local privilege escalation (LPE) exploits to two zero-day sellers “Volodya” (previously called “BuggiCorp”) and “PlayBit” (or “luxor2008”) Check Point Research’s Itay Cohen and Eyal Itkin said their analysis began in response to a “complicated attack” against one of its customers.
Source: https://thehackernews.com/2020/10/exploit-development.html