I am at my wits end!
XP Home SP2, Norton System Works 2004, ZoneAlarm Pro version 6.5.737.000 with anti-spyware on, ADSL connected by modem to the main computer and a LAN using a direct cable connection between Main and Spare computers using Free Proxy to allow the Spare to access the internet through Main. Spare is running Win98 SP2
I don't know if I have two problems or one and even if I did I have not been able to find the cause. The problems are with Main - Spare does not seem to be affected and shutting it down does not stop the problem.
I have scanned my computer several times with Norton AV and just recently tried AVG Free both with negative results.
Every now and again ZA alerts me that a program is trying to send an email with a sender address that is not mine and/or more than one message is being sent. My outbound mail rules only allows one of two sender addresses and only one message to be sent at a time. On one occasion the sender was email@example.com and the message was addressed to firstname.lastname@example.org with a subject of BC 22.214.171.124. This problem occurs at irregular intervals usually days apart but when it does occur it occurs several times during the day and sometimes becomes so frequent that I have to restart the computer to stop it. After such an episode it usually does not re-occur for several days or even two or three weeks.
The other problem is more recent or I have only recently noticed it. There is considerable internet activity that I have not initiated. It amounted to about 140 Mbytes sent and received yesterday and so far about the same today and appears to be in small packets of about up to 2 Kbytes at irregular intervals of a fraction of a second to several seconds. I have checked program control in ZA to see if I could find the culprit and it seems that svchost.exe is being used by an anonymous program to access the internet.
All my programs seem to be running normally and the performance tab in Windows Task Manager does not show any abnormal CPU or memory usage.
Can anyone suggest what I should do?
Operating System:Windows XP Home Edition
Product Name:ZoneAlarm Pro