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1. Raas

This is a malware model in which ransomware groups provide their malware to other members. These members then infect targets with this malware. In exchange, the malware creators receive a share of the ransom paid by the victims.

2. Ryuk

It is an example of a highly targeted variant of ransomware. Once the system is infected, Ryuk encrypts certain types of files (avoiding those that are essential to the computer’s operation) and then displays a ransom demand.

3. Lapsus

This is a South American ransomware gang known for carrying out cyberattacks against leading companies and organizations. The group gained particular notoriety through high-profile attacks targeting major international corporations.

4. LockBit

It is a malware specializing in data encryption, active since September 2019. It operates according to the Ransomware as a Service (RaaS) model, which means that it is used by different cybercriminals who rent or exploit the tool to carry out attacks, while its developers receive a share of the ransoms.

5. Ransomware

It is software that uses encryption to prevent the victim from accessing their data until a ransom is paid.

(crowdstrike.com)

(checkpoint.com)