ExPetr – Malware

ExPetr, also known as NotPeta, is a complex sort of malware that spread throughout the world using many exploits — scripts that take advantage of a software weakness or security fault – despite solely targeting Ukraine at first. According to specialists, the global Petya/ExPetr malware epidemic wasn't a ransomware campaign, but rather wiper software intended at disruption. ExPetr malware isn't a ransomware assault; rather, it's a wiper attack that damaged PCs all over the world, permanently overwriting their Master Boot Record.

The vulnerabilities EternalBlue and EternalRomance, as well as the Mimikatz research tool and the insecure business software MeDoc, were exploited by the crooks. The malware was delivered as an update via the MeDoc update service. Infected PCs were locked, and users couldn't access any files unless they paid a $300 Bitcoin ransom. ExPetr was a costly cyberattack, with hackers stealing $10 billion (£7.9 billion) in 2017. This breach became one of the most expensive cyber attacks in history because of these synchronized efforts. Our objective as cyber specialists is to prohibit new attacks from ever joining this list as cybersecurity evolves and improves.

Cost: £7.9 billion