Interpret my scan log?

[Christopher1029]

Hi,
Everyone I am a student looking into Security as my major.
I have wanted to conduct my own experiment with Macs regarding the issue "Do the get virus's?"

So After running a scan using avast Free for mac!, I generated these results. But I am not sure how to interpret the items that it brought up.
I am using a 7 year old Macbook running Snow leopard 10.6.8, have done security updates regularly, but never ran any any virus/ malware until yesterday. What do you think?

[Secondmineboy]

The files with the yellow triangles are warnings that files inside an compressed archive could not be scanned.
The one file which is marked red detected as Win32:Patched could be a false positive or a detection inside a VM.

Avast just detected a Trojan which creates a backdoor on macs, through this you can put malicious code on the system.

[Christopher1029]

I would think that if I have a trojan on my operating system on a VM, I would not be affected on my mac in anyway.
Unless the VMware file has a trojan?

If I delete this file or quarantine any of the others, Will that affect how to are run. I use linux, and Java every week.

Thanks very much