I am having the same problem with browsers being prevented from going to www.malwarebytes.org and other sites. Two similar posts I found are http://www.malwarebytes.org/forums/index.php?showtopic=6956 and http://www.malwarebytes.org/forums/index.php?showtopic=9707. In short, while researching a solution to a Linux printing problem I managed to follow a Google link that resulted in various browser hijackers and other viruses getting installed on my machine. I noticed it immediately and took corrective action, and with the help of Malwarebytes (excellent product, BTW) was able to remove everything. Or so I thought. The one symptom that seems to remain is that certain websites (such as www.malwarebytes.org) are either blocked or misdirected by the browser. I have verified that it is not a router issue, as I have other machines on my LAN that can get to these sites no problem. Also, nslookup does give me the correct IP address for alpha.malwarebytes.org (69.162.79.74). I tried to get there from the browser via IP address but receved a Forbidden response, probably due to your server using name-based virtual host mapping (or something similar). Running tracert also shows that it ends up at alpha.malwarebytes.org. Being technically savvy I have been working on this for a while now but am finally running out of ideas. Like others, steps that I've taken include: Doing a full Malwarebytes scan Running Hijackthis and removing suspicious entries Removing non-critical software from the system Running netsh int ip reset and ipconfig /flushdns multiple times Starting up in safe mode with no services other than networking Resetting Internet Explorer settings to default values Completely removing and reinstalling Firefox I've attached the latest Malwarebytes and Hijackthis logs for reference. I have been tempted to run ComboFix, but as a power user I have not been able to find enough information on what this tool actually does to satisfy my need to know what the actual problem is. Any help would be greatly appreciated. Thanks, Kevin mbam_log_2009_01_17__15_23_41_.txt hijackthis_17_jan_2009.txt mbam_log_2009_01_17__15_23_41_.txt hijackthis_17_jan_2009.txt