Definition
Netwalker ransomware is a type of malware that emerged in 2019. It encrypts a victim’s data, making it inaccessible, and then demands a ransom for the decryption key.
This malware usually targets businesses and organizations, using phishing emails or exploiting vulnerabilities in remote tools to access the network. Once inside, the malware spreads rapidly, encrypting files on both network and local drives.
Examples of Netwalker Ransomware
- Healthcare sector attack: Netwalker ransomware targets hospitals and other healthcare facilities, disrupting essential services and risking lives.
- Ransomware-as-a-service (RaaS): Netwalker ransomware runs on a RaaS model, where associates execute the ransomware and share the ransom payments they extract from victims.
Preventing Netwalker Ransomware
- Use unique and strong passwords for all accounts and implement two-factor authentication.
- Keep all operating systems and software up-to-date to patch vulnerabilities.
- Educate employees on phishing emails and urge them to report suspicious messages.
- Employ a robust backup strategy to restore all the data in case of a netwalker ransomware attack.