Outlook hijacked

[Nick]

My outlook seems to be sending emails in the background; emails which
I have not written.

When its open, its saying on the status bar 'Sending 1 of 9' although
there are no emails in the outbox. Also every few mins. Zonealarm pops
up and says that too many emails are being sent in a short space of
time (zone alarm rule violation). However, Zonealarm has not caught
any spam or suspicious program.

How do I figure out what is going on?

 

[Peter Foldes]

By doing a complete check for malware

Go through these general malware removal steps systematically -
http://www.elephantboycomputers.com/page2.html#Removing_Malware

Include scanning with David Lipman's Multi_AV and follow instructions to do
all scans in Safe Mode. Please see the special Notes regarding using
Multi_AV in Vista.

http://www.elephantboycomputers.com/page2.html#Multi-AV - instructions
http://tinyurl.com/yoeru3 - download link and more instructions

You can also check to see if there are targeted removal steps for your
malware here:
Bleeping Computer removal how-to's -
http://www.bleepingcomputer.com/forums/forum55.html