Win32.Ascreen is a backdoor Trojan pest that may have entered your system through false pretenses.  It may have come to you through an e-mail from a seemingly legitimate source.  And, the files may pretend to be update of existing legitimate programs but they are, in fact, viruses.  This program will enter and will then allow a hacker to enter.  The hacker will take over your system and make away with your personal information.  Financial records will be at risk.  Removal of this program should be sought immediately.

In order to remove this pest quickly and safely, you can use SpyZooka.  SpyZooka will remove any and all spyware from your system without any risk.