Published May 18, 2015 | Updated Jul 24, 2017

Trojan:Win32/Kovter

Severe |Detected with Windows Defender Antivirus

Aliases: No associated aliases

Summary

Windows Defender detects and removes this threat.

This malware family is well known for being tricky to detect and remove because of its file-less design after infection. They infect your PCs so malware perpetrators can perform click-fraud and install additional malware on your machines. 

A trojan is a type of malware that can’t spread on its own. It relies on you to run them on your PC by mistake, or visit a hacked or malicious webpage.

They can steal your personal information, download more malware, or give a malicious hacker access to your PC.

You can read more about this threat on the Microsoft Malware Protection Center (MMPC) blog: 

Find out ways that malware can get on 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 hidden malware.

Protect your sensitive information

This threat tries to steal your sensitive and confidential information. If you think your information has been stolen, see:

You should change your passwords after you've removed this threat:

Use cloud protection

The Microsoft Active Protection Service (MAPS) uses 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. 

Get more help

You can also see 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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