Ask About These 3 Antivirus

Guys, i want ask ... i have 2 Notebook ...

1st one install Kaspersky Internet Security 2013 Licensed
2nd one install Avast! Trial 30 Days and Malwarebyte Free

When i scan my game at 2nd Notebook , i found that 1 file / folder setup.exe Avast! Full Scan got a Spyware...
then i try with Malwarebyte Full Scan , it's said not detected any malicious threats ...

then i try Full scan using Kaspersky my 1st notebook which have same game too, but no threats too...

Conclusion :
1. Full Scan with Avast! Trial 30 Days Detected (Setup.exe Have Spyware)
2. Full Scan with Malwarebyte Free Not detected any malicious threats
3. Full Scan with Kaspersky Internet Security 2013 Licensed not detected any threats / Virus too

so which should i trust ?

you mean ? should i just ignore it ? maybe it's a false positive ?

Whenever I see a suspicious or questionable file I upload it to VirusTotal for scanning.
This will scan it with 40+ scanners.
If only one finds it has malware and 40+ find it clean, maybe a false-positive for that one scanner...
As you have 2 different PCs, I would upload the file from each PC to see if the results are the same...

Maybe the file on PC1 is not the same as the file on PC2...
If you download from torrents, it could be more likely to have a different setup.exe file on PC1 than on PC2...
No telling where the setup file really got downloaded from.

If you think it's a false-positive for Avast, they have a viruses and worms forum where you can ask for help.

so now , i better upload that setup.exe too www.virustotal.com for check ?

i think the file it's same cause i copy from my PC 1 to PC 2 ... PC 1 KIS 2013 didn't detect any malicious threats such spyware like Avast detected ...

ThrashZone said:

It wouldn't be out of the ordinary for a trail version to give you a false sense of finding a corrupt or malicious file it found,
Kind of a Sells pitch.
That's why Trail versions are not worth messing with,
Cheers.

Trail version?

I use a trial version before buying a program so I can see if I really want it before spending money.
I wouldn't buy a car without at least test driving it first...

Also, I use different AV programs on different systems.
If one AV has an issue that can cause a system to be un-bootable, I still have other systems I can use until I can fix the problem.
I've seen where even a malware definition file update can render a system unusable.
Unfortunately it happens, fortunately not very often.