If you live in Southeast Asia or the Far East, try running Ubuntu and then scan your computer with chkrootkit and rkhunter. Rootkits have been unleashed with impunity in several Asian countries–rootkits that enable remote terminal with root privileges onto your device.
If you find Ebury/Operation Windigo on your device, you must wipe it completely. This rootkit has been tweaked to manipulate chkrootkit, so be very attentive when you look at your results.
To be frank, there are countries in Southeast Asia and the Far East in which it would be unreasonable to assume that your computer is not dorked.