Malware can even turn a machine into a “zombie”, and be an unwilling participant spam sending or relaying, address harvesting, or DDOS attacks against other computers.One of the more popular techniques for fighting malware among home users is through the use of a host file for DNS redirection.A host can be used to maps hostnames associated with malware to a different IP address (such as a loopback address, 127.0.0.1).This will prevent connections to those malicious sites from ever taking place.If you have installed the Flash plugin but it does not appear in the Add-ons Manager, open about:config and make sure that the preference has not been set to "false" (if it has, right-click on it and select Reset to set it back to "true"). Note: If the Flash plugin is installed, make sure it is enabled in the Firefox (3.0 and above) or Sea Monkey 2 Add-ons Manager (see above); otherwise, the Flash test will not work and the "Shockwave Flash" plugin entry will not be displayed in the about:plugins list.Visit Adobe's website for information on security and stability issues affecting Adobe Flash.
Note: On Windows, the Flash plugin is detected via plugin scanning.
(There is an irony here, as some of the more “evil” malware hijacks your host file to prevent their removal or to redirect search queries).
Unfortunately, there are several problems with using host files, especially in a corporate environment: As an alternative to host files, there are several desktop-based DNS software packages available which are designed for use on a single desktop.
After that, BITS service fails to start The executable program that this service is configured to run does not implement the service.
netsvcs registry value in HKLM\Software\Microsoft\Windows NT\Current Version\Svchost registry key should contain the service names that can be run in that service host.