Finally found the origin of this crap.

Everyone who downloaded this crap should change all his passwords and other stuff.
MSI package (QPST.2.7.422.msi) was embedded/tampered with qualcomm.exe which is a .NET based malware that logs your keystrokes and sends it to attacker's location.

How to delete the actual malware from your system?
Look at the startup from msconfig or CCleaner, there should be file called qualcomm.exe thats configured to start everytime windows starts. Delete both registry and file.

Malware log that includes all your keystrokes.

In XP,
C:\Documents and Settings\Administrator\Application Data\dclogs
there should be file called "2014-01-11-7.dc
if you open that file with Notepad

:: Run (3:01:51 AM)
Script kiddie. NET Based malware, huh?[ESC]

:: Program Manager (3:02:14 AM)
e

:: All Users (3:02:18 AM)
[DOWN]
[DOWN]
[DOWN][DOWN]


:: Documents and Settings (3:02:19 AM)
[UP]


:: Administrator (3:02:28 AM)
[DOWN][DOWN][DOWN][DOWN][DOWN][DOWN][DOWN][DOWN][DOWN][DOWN]
[DOWN][DOWN][DOWN][DOWN][DOWN][DOWN][DOWN][DOWN][DOWN][DOWN][DOWN][DOWN][DOWN]
d

:: (3:02:34 AM)


:: Administrator (3:02:34 AM)
d

:: (3:03:11 AM)
mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

:: [Release] QPST 2.7 BUILD 422 - Download Here - Enjoy - Mozilla Firefox (3:03:57 AM)
crap


How to delete?d

:: Clipboard Change : size = 16 Bytes (3:03:57 AM)
QPST.2.7.422.msi

:: (3:04:23 AM)
cccccc
More info

- - - Updated - - -

It contacts to "qpst.hopto.me" to send keylogger data.