Published Aug 12, 2015 | Updated Sep 15, 2017

Win32/SupTab

High |Detected with Windows Defender Antivirus

Aliases: No associated aliases

Summary

Windows Defender  detects and removes this unwanted software.

This threat can also be removed by Microsoft Malicious Software Removal Tool (MSRT). Read more about how MSRT removes this and other unwanted software in our blog MSRT October 2016 release: Adding more unwanted software detections.

This browser modifier installs add-ons or extensions to your Internet browser without your permission. It also modifies your search settings and browser shortcut files.

Usually, this threat bypasses the normal prompts or dialogs that ask for your consent to install browser extensions, toolbars, or add-ons into the Internet Explorer and Google Chrome web browsers.

When launched using these modified shortcuts, the browsers open certain websites that you may not intend to visit.

This threat is part of a suite of malware and unwanted software families that is also called "Fireball". Read about this threat group in the Windows Security blog: 

Understanding the true size of “Fireball”

Find out more about how and why we identify unwanted software.

This program poses a high threat to your PC.

Use the following free Microsoft software to detect and remove this threat:

You should also run a full scan. A full scan might find other, hidden threats.

Use cloud protection

Use cloud protection to help guard against the latest malware threats. It’s turned on by default for Microsoft Security Essentials and Windows Defender for Windows 10. 

Go to All settings > Update & security > Windows Defender and make sure that your Cloud-based Protection settings is turned On.

Get more help

You can also visit our advanced troubleshooting page or search the Microsoft virus and malware community for more help.

If you’re using Windows XP, see our Windows XP end of support page.

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