This is a nasty variant of a vundo infection which creates thousands of pos*.tmp
files in the root of the system volume (usually your C: Drive) and puts a Red X on your drive icon as you describe. Deleting the files will only lead to their replacement. The malware may also attack legit programs and create new filenames with space(s) in the name before its extension. Removal will require further investigation and the use of more powerful tools than we recommend in this forum. Before that can be done you will need you to create and post a hijackthis log.
Please read the pinned topic titled "Preparation Guide For Use Before Posting A Hijackthis Log
" and complete all the steps. There are instructions for downloading and running Deckard's System Scanner (DSS)
which will create a hijackthis log
for you, or automatically download and install the most current version of HijackThis if it's not already installed on your computer.
When you have done that, post your log
in the HijackThis Logs and Malware Removal
forum, NOT here
, for assistance by the HJT Team Experts. A member of the Team will walk you through, step by step, on how to clean your computer. If you post your log back in this thread, the response from the HJT Team will be delayed because your post will have to be moved. This means it will fall in line behind any others posted that same day.
Start a new topic, give it a relevant title and post your log along with a brief description of your problem, a summary of any anti-malware tools you have used and a summary of any steps that you have performed on your own. An expert will analyze your log and reply with instructions advising you what to fix. After doing this, we would appreciate if you post a link to your log back here so we know that your getting help from the HJT Team.