Katherdoor is a backdoor program that can enter your computer surreptitiously as a Trojan. It enters undetected and without your authorization. These programs are often able to enter because of vulnerabilities in your Windows operating system. This nasty pest will then go to work to open a ‘backdoor’ to allow a hacker to enter and will wait for you to go to sensitive sites (for example, financial websites) and will steal your passwords. It can capture your keystrokes and steal other personal information.
You can remove Katherdoor very quickly with SpyZooka. SpyZooka is a spyware remover and is highly effective. It can usually remove all spyware with one scan.