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Published Nov 17, 2017 | Updated Dec 13, 2017

Trojan:Win32/Sonoko.A!ms

Severe |Detected with Windows Defender Antivirus

Aliases: No associated aliases

Summary

Windows Defender Antivirus detects and removes this threat.

This threat can perform a number of actions of a malicious hacker's choice on your PC.

NOTE: On December 12, 2017, limited cases of an incorrect detection for this protection was reported and immediately fixed.

To ensure that this issue is remediated, you can do a forced daily update to download your Microsoft antimalware and antispyware software. The fix has been deployed in signature build 1.259.284.0.

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.

Use cloud protection

Use cloud protection to help guard against the latest malware threats. It’s turned on by default for Microsoft Security Essentials and Windows Defender Antivirus for Windows 10. 

Go to Settings > Update & security > Windows Defender > Windows Defender Security Center > Virus & threat protection and make sure that your Cloud-based Protection settings is turned On.

Get more help

You can also visit our advanced troubleshooting page or search the Microsoft virus and malware community for more help.

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