Well… when it is in memory it is too late…
But, generally, it is related to unencrypted signatures loaded by other security programs into memory and/or false positives.
I am looking to replace my Asus PC which runs on Vista. Is Apple a safer bet than windows as far as virus infections is concerned or is Apple just as prone to getting infected?
It isn’t a false positive, you asked avast to scan memory for virus signatures so don’t be surprised if it does so. When you buy a guard dog don’t be surprised when it bites an attacker.
However, you need to give the full information as a PID is worthless without the associated Process as the PID may differ from system to system, so we won’t know the application responsible for loading that block into memory.
I certainly wouldn’t switch to Apple just because it may be less prone to attack, because it doesn’t have a huge market share. As that market share grows, then it will be worth the malware writers time to go after it. Me I think Apple products are over priced, over hyped, restrictive and proprietary systems.
I haven’t had a virus on my system in over 7 years since switching to avast and you can take pro-active measures to prevent infection or limit the damage.
If it is a real virus (not just a signature) that is in memory, effectively it is active/running. Which means that it could have done its work already as it wasn’t detected when it ran to be loaded in memory.