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Microsoft Security Intelligence
Published Jun 29, 2006 | Updated Sep 15, 2017


Detected by Microsoft Defender Antivirus

Aliases: No associated aliases


Windows Defender Antivirus detects and removes this threat.
Win32/Nsag is a family of data-stealing trojans. A Win32/Nsag trojan is created when certain malicious software injects code into wininet.dll, a Windows system file. When a user tries to send data to a website, code in Win32/Nsag may cause code in other malicious software on the computer to capture the user data and send it to an attacker.

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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