Kaspersky®Anti-Ransomware Tool
Don’t get locked out of your files
Kaspersky Anti-Ransomware is your digital hostage negotiator, offering free protection from ransomware and cryptolockers for desktops, laptops and servers.
- Lightweight installation that works with your current security software
- Available as a free, standalone program or a comprehensive, integrated tool offered with our premium security plans
- Solutions for both home and business

The new, improved Kaspersky Anti-Ransomware Tool!
This lightweight ransomware protection offers complete ransomware protection by using cloud-assisted behavior detection to block ransomware and crypto-malware immediately. And because it's GDPR ready, you can trust that your data is processed and protected responsibly.
Shared folders protection
Kaspersky Anti-Ransomware Tool is capable of blocking both local and remote attempts to encrypt user data.
Works with most security software
It doesn't matter which software you use. Kaspersky Anti-Ransomware Tool is compatible with most cybersecurity solutions.
Crypto-miners detection
In addition to malware objects, Kaspersky Anti-Ransomware Tool can detect and block adware, pornware and riskware objects including crypto-mining software.
The Premium Ransomware Solution
Kaspersky Anti-Ransomware Tool, providing advanced protection to your systems and files, is built into our top-tier cybersecurity plans. So if you want the best defense against ransomware, you’ll want the best internet security suites on the market today.
Free Ransomware Defense
The essential elements of Kaspersky Anti-Ransomware Tool are also available as a free, standalone program that protects you from being locked out of your computer.
How we secure you against Ransomware
Kaspersky Anti-Ransomware Tool protects from ransomware at any stage of the attack from delivery to execution using technologies in the multi-layered protection stack

See Kaspersky Anti-Ransomware Tool in action!
Use this interactive version of Kaspersky Anti-Ransomware Tool to explore its feature and see how it keeps your system protected from hackers trying to lock you out of your own computer.
User Reviews
System Requirements
Technical Requirements
- Windows 7 – 11
- Windows Server 2008 R2 - 2022
- Intel Pentium III CPU 1 GHz for 32-bit and 64-bit systems or a compatible equivalent
- Memory For 32-bit operating systems: 1 GB - For 64-bit operating systems: 2 GB
- Disk Space: 350 MB of free space on the hard drive
- Internet connection to update the databases and application modules
Compatibility
- Kaspersky Anti-Ransomware Tool is compatible with all security software
- Kaspersky Anti-Ransomware Tool functionality is included in all Kaspersky paid endpoint solutions so it is not required to install it alongside (such installation will be prevented to avoid application overhead)