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Microsoft Security Intelligence
Published Mar 02, 2007 | Updated Sep 15, 2017


Detected by Microsoft Defender Antivirus

Aliases: TR/Dldr.DNSChanger (Avira) Win32/Alureon (CA) Trojan.DnsChange (Dr.Web) Trojan.Zlob (Ikarus) Trojan-Downloader.Win32.Zlob (Kaspersky) DNSChanger (McAfee) Troj/Zlob (Sophos) Trojan-Downloader.Win32.Femad (Sunbelt Software) Trojan.Zlob (Symantec) TROJ_DNSCHAN (Trend Micro)


Windows Defender detects this threat.

This family of data-stealing trojans can give a malicious hacker access to collect confidential information stored in your PC, such as your user names, passwords, and credit card data.

They can also send malicious data to your PC and corrupt some driver files, making them unusable.

Find out ways that malware can get on your PC.

Use the following free Microsoft software to detect this threat:

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

Advanced troubleshooting

To restore your PC, you might need to download and run Windows Defender Offline. See our advanced troubleshooting page for more help.

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:

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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