Oberon2000 maybe right but here we have a procedure for checking for infections and with this thread and four computers with the same problem I would suggest doing this one computer at a time.... Also they are a bit busy there so be patient.
To get Expert Help with malware removal:
I recommend that you read this article… (
"Simply, click on the links to be re-directed.)
"Having problems with spyware and pop-ups? - First Steps";
http://www.techsupportforum.com/secu...oval-help.html
Please follow the instructions
very carefully; then, post all the requested logs and information; as instructed, in the
HiJackThis Log Help Forum.
http://www.techsupportforum.com/secu...this-log-help/
Please ensure that you create a new thread in the HiJackThis Log Help Forum;
not back here in this one.
When carrying out
The 5 Steps,
http://www.techsupportforum.com/secu...oval-help.html
if you cannot complete any of them for whatever reason, just continue on with the next one until they are all completed.
However,it is extremely important to make mention of the fact that you could not complete any of the steps in your post to
HiJackThis Log Help Forum.
http://www.techsupportforum.com/secu...this-log-help/
where an Analyst will assist you with other workarounds.
Once done, please be patient, as the Security Team Analysts are usually very busy; one of them will answer your request as soon as they can. .