Question : antimalware hidden in a file-  PUA.Packed.ASPack

Hi, I downloaded a file from a friend (he is good with computer stuff and he found a program for me) but before I run it I want to scan it to make sure its not a virus or anything. So I scanned it with  the website "http://www.virustotal.com". Basically I upload the file to that site, and it uses 41 different scanning softwares to determine if the file is suspicious or not. I got the results back and only 1/41 found something suspicious. The software called ClamAV found the following posable threat: PUA.Packed.ASPack

How can I determine if this is an actual virus / malware or not? If I test and install it, how would I know if it was infected or not?

Answer : antimalware hidden in a file-  PUA.Packed.ASPack

Correction, the start of period should be in the query a total of 3 times:

select date_add($periodstart, INTERVAL quarter*3 MONTH) as StartOfQuarter, `countsales`, countpurchases
from
(
select
  floor(period_diff(date_format(`date`, '%Y%m'), date_format($periodstart, '%Y%m')) / 3) as quarter,
  count(sale) as countsales, count(purchases) as countpurchases
from tbl
group by floor(period_diff(date_format(`date`, '%Y%m'), date_format($periodstart, '%Y%m')) / 3)
) sq
order by 1