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Published Jul 28, 2014 | Updated Sep 15, 2017

Exploit:Java/Obfuscator.W

Detected by Microsoft Defender Antivirus

Aliases: No associated aliases

Summary

Windows Defender detects and removes this threat.

This threat has been "obfuscated", which means it has tried to hide its purpose so your security software doesn't detect it.

The malware that lies underneath this obfuscation can have almost any purpose.

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.

Download and apply the security patches

Make sure that you download and install all of the available security patches of the affected software that you are using.

It's also important to keep your other software up to date:

Update Windows

This threat also tries to exploit a vulnerability in Internet Explorer. Make sure Windows is updated by running Windows Update.

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 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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