@ imkhalid,
Yes, Avast has anti-rootkit.
Please follow the suggestions given to you by nmb:
Check the information on the
first post of this thread under Virus/Worms for you to check your machine for malware:
http://forum.avast.com/index.php?topic=53253.0.
Follow the directions of obtaining an
MBAM log (make sure you update MBAM first) and the
OTL logs (
save them as ANSI and not Unicode). When the OTL scan completes, it will open two notepad windows. OTL.Txt and Extras.Txt. Post the MBAM log and the two (2) OTL log as an
attachment (Additional Options > Attach > Browse (the logs will be on your desktop > Post) to your next post in this thread. We will then analyze and contact our malware expert, Essexboy. Do not follow suggestions of other helpers other than Avast Evangelists until Essexboy arrives (he usually comes here late UK time).
Please do not make any further changes to your machine after you have provided the logs.Let us know if you have any questions. Thank you.