Why avast does not detect or is it a PUP detection?

Viruses and worms
1

See: Up(nil): Heur.Suspicious RIPE GB 146.185.27.53 to 65.254.40.36 downloadster2cdn dot com htxp://cdneu.downloadster2cdn.com/ofr/OptimizerPro/OptimizerPro_810.exe
See: https://www.virustotal.com/nl/url/18b328f2e4ea0cbff387f7c07059e928cbd7661cf69b457a5dceb520c0f3471e/analysis/
and https://www.virustotal.com/nl/file/86ab5de054326740164acdf60ab7235ce45051f3e9fa35bdd3a41ef24b7cd093/analysis/1380225533/
See: https://www.virustotal.com/nl/ip-address/146.185.27.45/information/
With IDS alerts here: http://urlquery.net/report.php?id=6064622

polonus

2

It is not detected by Avast. It is a annoying PUP. Which starts every time when the system starts and it wants you to buy a PRO version
and crap like this.

It is signed by PC Utilities Software Ltd.

It wants you to register the product and then you have to buy a license. Screenshots attached.