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OSArmor v1.4.1

Monitor and block 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, it blocks processes with double file extensions (i.e invoice.pdf.exe), it blocks USB-spreading malware, and much more. It is lightweight, zero-configuration and runs in the background protecting your system.
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For Windows XP, Vista, 7, 8, 10 (32\64-bit)

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An Additional Layer of Defense

This smart security application focuses on preventing a malware infection by applying smart and intelligent rules that block bad processes behaviors. This tool can block threats not detected by your installed security solution. Add to your system an additional layer of defense to 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 60 smart 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 Bcedit.exe

Prevent important and critical system modifications from Bcedit.exe

Block Bitsadmin.exe

Prevent Bitsadmin.exe from downloading (/download) remote files.

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.

Block RegisterXLL()

Prevent calling of Application.Excel RegisterXLL() via command-line.

Block Remote Scripts

Prevent Regsvr32.exe or Mshta.exe from loading remote scripts.

Very Lightweight

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

Free to Use

This software is completely free to use for anyone, at home and at work.


Watch the video

With this video we show you OSArmor in action, it blocks
various Microsoft Office exploit payloads.


Application Screenshots

Here there are some screenshots of the application.

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Product Details

Version 1.4.1
Last Updated October 25, 2018
Operating System For Windows XP, Vista, 7, 8, 10 (32\64-bit)
Category Experimental Tools
License Type Freeware
File Size 6 MB