I just fixed my computer from a rootkit infection. It was creating porn links on my desktop and was trying to get me to load the "Protection" crudware. MalwareBytes would not load. Anyway, the problem was that I got a rootkit infection (AVG free detected it but didn't stop it). I followed the instructions on the MalwareBytes page about how to detect and remove a rootkit (get RootRepealer software, disconnect network cable/internet connectivity, start PC in safe mode, open the software and ignore the startup errors if they occur, switch to the files tab, scan for files, and once it's done, look for any .sys files in the list that are bad (see the page for examples, but I only had one), right-click and select wipe, then shut down immediately. Once I rebooted AVG and MalwareBytes both started identifying and killing bad files immediately.
Here's the web page to the instructions, which I've summarized above anyway. The page has a link to the RootRepealer software.http://www.malwarebytes.org/forums/index.php?showtopic=12709
Admins: this is my first post, and I'm not 100% sure it's the right place, but I found an entry here about miva.dll while I was trying to fix my PC and it seems there are a lot of posts in the last day or two, so I thought it'd be good to post how I fixed it. If this isn't the right topic, I would be very grateful if someone could move it. If I've broken any rules, I do apologize. Thank you!