Trojan detected in installation of newest Opera for windows

[A Former User]

A Former User last edited by

Installed yesterday on Windows 10 and Windows Defender Security flagged Trojan:Win32/Sonoko.A!ms
This was installed to file: C:\Users???\AppData\Local\Opera Software\Opera Stable\Cache\f_00004f

Is it a trojan? or something else?

[leocg]

leocg Moderator Volunteer last edited by

Since it's in Opera's cache, it means that Windows Defender ddtected something suspicious in a page you've visited.

[burnout426]

burnout426 Volunteer last edited by

Seeing https://social.technet.microsoft.com/Forums/en-US/7e4e3d11-e43b-4a5e-a94f-5315397ffd19/false-positive-trojan-sonokoams-in-chrome-user-data-cache-files?forum=FCSNext about this.

There's also this https://www.microsoft.com/en-us/wdsi/threats/malware-encyclopedia-description?Name=Trojan:Win32/Sonoko.A!ms&ThreatID=-2147242665.

In short, there's a high probability that it's a false positive in this case.

[bostyan87]

bostyan87 last edited by

This is a Opera problem not windows etc. if other browsers dont show this warning is Opera!!

Anyway I still use 12.70 the best opera ever made no problems with Firefox 52 now browsers are totaly garbage anyway....

[sgunhouse]

sgunhouse Moderator Volunteer last edited by

A. It is not a problem, and B. if it were a problem it is in a cache file - go to Setting and empty your cache and it is gone.