|"you are completely wrong to think that virus comes bundled with other software"|
Oh really?? Have a look at these descriptions taken from several different malware removal sites:
"HEUR/QVM10.1.Malware.Gen is adware which is bundled using custom installers and dropped on your computer during the installation process. Most users have no idea how this HEUR/QVM10.1.Malware.Gen threat is installed on their computer"
"HEUR/QVM10.1.Malware.Gen infection can be spread through spam email attachments, adult sites, gambling sites, suspicious torrents and different free programs."
"The Trojan can sneak on a computer easily since it inserts its malicious codes into free download software and suspicious links on legit web pages."
"HEUR/QVM10.1.Malware.Gen can enter into PC many ways and easily without any consent you to. Normally it penetrates the system, when user downloading and installing any freeware third party software."