Since the last update of McAfee I have received Buffer Overflow Blocked; C:\Windows\Explorer.exe, warnings. I can just let the system idle and after a few minutes the message appears. Or if I open Outlook Express before the message appears I get the same warning with C:\Program Files\Outlook Express\msimn.exe as the location. The messages appear only once in a session. Since this began I have also noticed strange things happening with my Start Menu and Task Bar. The quick Launch will rearrange or hide itself, start items will not respond to clicks. All my hardware has been tested and is functional. I have ran no less than four separate spyware/malware programs. I have a McAfee subscription through Verizon the subscription seems to auto renew and download each month. After the last renewal the problems began, I removed and re-installed the program at that time with no change.
After trying several well known spyware apps I used a recommended app called Malwarebytes found here: http://www.malwarebytes.org/ it found an obscure Trojan removed it and all is well. Here is Trojan info: