Conficker.B is a variation of Conficker computer worm that is infected computers all around the world that run on Windows operating system. It was first detected in November 2008. It exploits various vulnerabilities in the Windows software to root in the computer. Consequently, as it infects a lot of computers Conficker.B creates a botnet that is a network of infected computers that are connected among each other and are controlled by another remote computer, possibly commanded by a hacker.
This variation of Conficker worm infects your computer using the weak link in the Windows Server service (which is also known as svchost.exe). If Worm:Win32/Conficker.B successfully gets into your system, it allows remote code execution via file sharing. It means that your computer gets subordinated into a network of other infected computers and a remote access from a third party is possible. Conficker.B can easily spread through removal drives and weak passwords, so you should always scan the USB drive your are using before allowing Windows explorer to open it, just in case.
When Conficker.B is in, it disables your Windows update service, Windows Defender and services that report Windows Errors. That is done in order for the worm to remain in your system for as long as possible. It can also lock some of the accounts and disallow you to modify registry key entries. As a result your network with connections might be flooded. Worm:Win32/Conficker.B also does not allow you to open various websites that have keywords related to malware and how to remove it. For example, if you infected with this worm, you will not be able to open or load a website that has any of the following keywords: virus, spyware, defender, Microsoft, rootkit, pctools, prevx, eset and so on.
Since this worm copies itself into the Windows system folder as a hidden DLL file, it is hard to remove it manually, especially if you do not know how your computer works. Needless to say, that Conficker.B is a dangerous computer infection that slowly and steadily cripples your system. You need to get rid of it as soon as you can. Acquire a powerful computer security program with the latest malware definitions that will detect and terminate Worm:Win32/Conficker.B for you automatically, securing your computer against similar attacks.