Published Mar 18, 2012 | Updated Sep 15, 2017


Detected with Windows Defender Antivirus

Aliases: Win32/Delf.NRJ worm (ESET) W32/Renamer-K (Sophos) Virus.Win32.Renamer.j (Kaspersky)


Windows Defender detects and removes this threat.

This virus can infect files with a .exe extension. When these files are run, the virus will run instead.

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 other hidden malware.

Additional remediation instructions for this threat

This threat might make lasting changes to your PC's settings that won't be restored when it's cleaned. The following links can help change these settings back to what you want:

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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