I believe my PC is infected with a Spam sending bug. I'm running a Dell GX520 with Windows XP Pro SP3 and Microsoft Outlook.
A few days ago my inbox became full of bounced back undeliver-able emails. Checking them found they were sent to unknown Email addresses from both of the user accounts in outlook, a few from 1 service@ and most from the other Ashley@. Running a scan with malwarebytes found nothing. The computer was left alone over the weekend the Monday morning email was checked and many more bounced back. I again ran Malwarebytes then Windows Defender offline and Msert all come up clean.
The Emails seem to go to random addresses not from anywhere in my computer and it also doesn't seem to matter if Outlook is loaded or not and emails were sent on Sunday and Outlook was shut down.
I currently have that Computer off the network but can copy from that one to this one to post.