What is Petya Ransomware

A kind of very malicious spyware known as Petya ransomware prevents users from accessing computer systems until they pay a ransom. Petya targets Microsoft Windows operating systems to encrypt the Master Boot Record (MBR) and Master File Table (MFT), preventing machines from booting up, unlike other ransomware that encrypts individual files on hard drives and servers.

Although the precise perpetrator of the Petya ransomware is unknown, analysts believe that cybercriminals are responsible for the attacks in order to profit from ransom payments. In 2016, the Petya ransomware was first discovered.

How infections happen

Phishing emails with infected attachments are the main way that Petya ransomware spreads. These could involve sending phoney job applications via email to HR departments.

How does it works?

The Petya ransomware encrypts the hard drive’s file system by substituting malicious code for the MBR(master boot record). After the machine restarts, a ransom notice requesting a bitcoin ransom payment in return for a decryption key is displayed.

Preventative Measures:-

1. Updates and patches for operating systems and software:- Frequent patches and upgrades can aid in removing the flaws that ransomware attacks take use of. IT teams need to disable old protocols like SMBv1 and pay close attention to fixes for vulnerabilities like EternalBlue.
2. Cybersecurity products:-Technologies that assist in mitigating threats and identifying potentially suspicious activities include firewalls, intrusion prevention systems (IPS), DNS and network filters, application allow lists, and Zero Trust solutions.
3. Antivirus and anti-malware:- These technologies offer real-time defence against exploits and malware.
4. Backups:-Maintaining backup copies of critical files helps speed up an organization’s recovery from a Petya ransomware attack. IT professionals must be sure to maintain a duplicate of files in an offline backup in addition to performing regular backups in order to guard against ransomware and virus attack.
5. Training:-Employees that receive security awareness training learn how to recognise phishing attempts and develop security practices that can help them fend off threats like Petya ransomware.
6. Email filtering:- End users can avoid Petya ransomware by blocking potentially harmful attachments and scanning emails for malware and malicious links.
7. Strong identity and access management:-Organisations with widely dispersed IT environments can stop hackers from gaining unauthorised access and using identity-centric defences to propagate ransomware and malware.