It's impossible to tell without looking at a hjt log.
I suggest you post a HijackThis log for examination.
A member of the HijackThis Team will walk you through, step by step, how to disinfect your computer.
Read the Preparation Guide
before posting a HijackThis Log.Please read, and follow, all directions carefully
Run a log, and post it in the HijackThis Logs and Analysis forum
, post it in this topic.Do not
, fix anything, yet.
A member, of the HJT Team, will help you out.
It may take a while to get a response from the HJT Team, because they are very busy. Please, be patient, as these people are volunteers. They will help you, as soon as possible.NOTE:
Once you have made the post, please, DO NOT make another post in the HJT forum, until it has been responded to by a member of the HJT Team. The first thing they look for, when looking for logs to reply to, is 0 replies. If you make another post, there will be 1 reply. The team member, glancing over the replies, might assume someone is already helping you out, and will not respond. So, just make your post, and let it sit there, until a team member responds. This way you will be taken care of, in the most timely manner.
If you haven't heard back from them in 5 days, go to this topic, Haven't Had A Reply In Five Days?
, and carefully follow all directions.