Need some help with detection of Win32:Hupigon-ONX [Trj], please…
My PC is a 64-bit Windows 7 machine (Hewlett-Packard). It has been running Avast Pro since it was purchased in November 2009. I scan weekly and have never had Avast detect a virus on this machine.
I use Windows Backup to backup files/system image to my external harddrive.
I ran a scan with the simple interface (thorough scan with archive files) on my external hard drive yesterday. This is the first time I’ve scanned the external drive since running Windows Backup. Avast said that
the file K:\WindowsImageBackup\MyPC\Backup 2010-03-30 020022/bb813b4a-c8eb-11de-b8bc-806e6f6e6963.vhd contained Win32:Hupigon-ONX [Trj]. I could not put it in the chest because the file was too big. I stopped the scan, ejected the external drive, and proceeded to scan my PC (thorough with archives). My PC came up clean.
I then reconnected the external drive, deleted the Windows Backup files from it, and scanned it again. No threats found this time.
I then ran Windows Backup to create a new backup/system image on the external drive. Ran another Avast scan on the external drive - once again it is indicating that a .vhd file (similarly named) has Win32:Hupigon-ONX [Trj]. A MalwareBytes AntiMalware scan of my external drive comes up clean.
Another scan of my PC comes out clean, and a MalwareBytes AntiMalware scan of my PC comes up clean.
Is this a false positive? I’m not sure what to do next. In the past I’ve sent you files to look at, and used Virus Total, but this file is too big.
Thanks so much for your help.