Malwarebytes Anti-Ransomware for Windows

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Editors’ Review

Download.com staffFebruary 26, 2026

Malwarebytes Anti-Ransomware actively monitors your computer for malicious activity. It identifies, blocks, and quarantines ransomware before your files can be encrypted.

Top Recommended Alternative

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Free

Pros
- Monitors all computer activity for ransomware.
- Identifies typical ransomware behavior.
- Blocks infections effectively.
- Quarantines ransomware before encryption.
- Blocked every ransomware variant tested.
Cons
- No specific mention of performance impact.
- Limited detail on user interface.
- No information on system requirements.
- Functionality exclusively focused on ransomware.
- No mention of reporting or logging features.

Malwarebytes Anti-Ransomware for Windows

Used Malwarebytes Anti-Ransomware for Windows?

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Full Specifications

GENERAL

Release: May 9, 2017

Latest update: February 26, 2026

Version: 0.9.17.661-beta

OPERATING SYSTEMS

Platform: Windows

Operating System

Windows 10
Windows 8
Windows 7

Additional Requirements: None

POPULARITY

Total Downloads: 7,315

Downloads Last Week: 1

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Last Updated

User Reviews

2.5/5

2 User Votes

Works OK on multiple PC's
BOBRGRJanuary 12, 2018
Pros
Doesn't use a lot of resources...less than cyber-reason ransomefree If it doesn't start protection on boot, you can click the tray icon and turn protection on..unlike Ransomefree where the PC must be rebooted Malwarebytes has good reputation, so it probably provides pretty good protection from ransomeware attacks Mine is slightly newer version 9.18797+ so some updating has occurred
Cons
I don't know if this is updated
Summary
Ransomeware is a big problem so I use 3 programs: This one, Ransomefree and CryptoPrevent. They play well together..no conflict with each other or avast, my realtime antivirus.
Program won't start
pberam--2008May 16, 2017
Pros
No pros, as program does not work.
Cons
Installed on Windows 10 machine. After installation, says "Unable to start" and "Unable to connect the service." Uninstalled and reinstalled, and got the same messages.
Summary
Program needs to be thoroughly tested by Malwarebytes before making it available for downloading.

Developer’s Description

By Malwarebytes

Monitor all activity in the computer and identify actions which are typical of ransomware activity.

Malwarebytes Anti-Ransomware monitors all activity in the computer and identifies actions which are typical of ransomware activity. It keeps track of all activity and, once it has enough evidence to determine a certain process or thread to be ransomware, blocks the infection and quarantines the ransomware before it has a chance to encrypt users' files. During development Malwarebytes Anti-Ransomware has blocked every single ransomware variant we have thrown at it.