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Prevent Malware & Ransomware

OSArmor is a Windows OS application that monitors and blocks suspicious processes behaviors
to prevent infections by malware, ransomware, and other threats. This tool analyzes parent processes and prevents, for example, MS Word from running cmd.exe or powershell.exe. It prevents ransomware from deleting shadow copies of files via vssadmin.exe, blocks processes with double file extensions (i.e invoice.pdf.exe), blocks USB-spreading malware, and much more. It is lightweight, requires zero user input and
protects your system while running in the background. In combination with OSArmor you can
also use SysHardener to harden even more Windows OS settings.

For Windows 7 SP1, 8, 10, 11 (32 & 64-bit)

OSArmor Screenshot

An Additional Layer of Defense

This application focuses on preventing malware infections by applying smart and intelligent rules that block malicious processes behavior. OSArmor can block threats not detected by your installed security solution. Add an additional layer of defense to your system and prevent infections by malware and ransomware! You don't have to configure anything, just install it and forget about it. We have already added more than 250 policies to improve your system security with this security application.

Basic Anti-Exploit

Analyze parent processes and child processes blocking exploit payloads.

Protect MS Office Apps

Prevent WINWORD.EXE or EXCEL.EXE from executing malicious processes.

Monitor Applications

Monitor Adobe PDF Reader, MS Office, OpenOffice, Web Browsers, etc.

Block USB Malware

Prevent execution of processes started via autorun.inf from USB devices.

Block Command-Lines

Block processes with command-line strings commonly related to malware.

Protect Shadow Copies

Block system processes (vssadmin.exe, etc) from deleting shadow copies of files.

Block File Download

Block specific command-lines related to download of remote files.

Block .COM & .PIF

Block execution of processes with .COM or .PIF obsolete file extensions.

Filter System Processes

Block wscript.exe, mshta.exe, etc if they match our rules of bad behaviors.

Block Bcdedit.exe

Prevent important and critical system modifications from Bcdedit.exe

PowerShell Rules

Block execution of encoded or malformed commands via PowerShell.

Exclude Processes

You can exclude specifc processes or events from being blocked.

Custom Block Rules

You can write your own custom block rules to block specific processes.

Intelligent Rules

Our internal smart rules can block known and not-yet-known suspicious process activities.

Very Lightweight

The software application uses only a few MBs of memory, you will not even notice it.

Watch OSArmor in Action

In this video we test OSArmor with various recent malware families like
Magniber, IceID, Bumblebee, Qbot, AgentTesla and file types like ISO, LNK, IMG, MSI, EXE (signed), HTA etc.
We test also malicious MS Office documents (the most used malware delivery method).

Product Details

Version 2.0.2
Last Updated June 16, 2024
Operating System Windows 7 SP1, 8, 8.1, 10, 11 (32 & 64-bit)
Server Version Windows Server 2016, 2019, 2022 (32 & 64-bit)
Category Malware Prevention Tool
License Type Shareware
Setup File Size ~50 MB
Install Size ~40 MB

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