I’ve recently scanned my computer, and I’ve come across something rather unusual. The pagefile.sys file contained in F:\ (partition for a different OS) was infected with Win32:FraudLoad-p. Avast did something, so I decided to reboot into Windows 7 (os in question) to do something. I rebooted back to Windows XP, ran a scan of pagefile.sys, and got a warning for Win32:Adloader-AC [trj]. I’m beginning to think that this is a false positive.
Can anyone give me a bit of insight into what exactly is going on?
Yes, it seems a false positive.
If you boot on that particular OS, the pagefile will be rebuilt and, probably, the false positive will be gone.
But, you can exclude with safe these files from scanning:
You need to use the Exclusion lists:
For the Standard Shield provider (on-access scanning):
Left click the ‘a’ blue icon, click on the provider icon at left and then Customize.
Go to Advanced tab and click on Add button…
For the other providers (on-demand scanning such as the screen-saver or the Simple User Interface):
Right click the ‘a’ blue icon, click Program Settings.
Go to Exclusions tab and click on Add button…