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Microsoft Security Intelligence
Published Mar 11, 2008 | Updated Sep 15, 2017


Detected by Microsoft Defender Antivirus

Aliases: Mal/Proxy-B (Sophos) Backdoor.Ocrservice (Sunbelt Software)


Windows Defender Antivirus detects and removes this threat.
Win32/Newacc is detection for an attacker tool that automatically registers new e-mail accounts on Hotmail, AOL, Gmail, Lycos and other account service providers. To achieve this, the tool communicates with a Web Service in order to bypass CAPTCHA protection. CAPTCHA is an acronym for Completely Automated Public Turing test to tell Computers and Humans Apart.

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.

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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