Javascript AMSI checker. Send any data stream from the browser to AMSI.

  • AMSIext
  • AMSIext
What is AMSIext?
AMSIext is a Firefox add-on that allows you to send any data stream from the browser to AMSI for real-time threat detection. It helps identify and alert you to malicious JavaScript, PowerShell, or any other potentially harmful elements while browsing the web.
Users: 9 ▼ -3
Version: 1.0.2 (Last updated: 2020-05-28)
Creation date: 2020-05-08
Weekly download count: NaN
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
  • nativeMessaging
  • http://*/*
  • https://*/*
  • activeTab
  • tabs
  • webRequest
  • webRequestBlocking
  • storage
  • menus
  • notifications
Size: 403.33K
URLs: Website
Stats date:

Chrome-Stats Rank

Other platforms

Not available on Chrome
Not available on Edge
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Chrome-Stats extension

AMSIext is a plugin that allows you to send any data stream from the browser to AMSI. AMSI is the way to communicate RAM memory with Windows Defender (or any other endpoint security system). This means that while browsing the web, AMSIext will alert you to malicious JavaScript, PowerShell or whatever − even before it may be executed or downloaded in your system!

Risk impact

AMSIext is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install AMSIext if you trust the publisher.

Risk likelihood

AMSIext has earned a fairly good reputation and likely can be trusted.

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