Three days ago, we had one desktop PC reporting the error:
Blocked by buffer overflow protection
in McAfee on access can message.
Now we have around 20 desktops and 6 servers reporting a same or similar message (sometimes it is svchost.exe that it is detected in) and spreading
Have done a search online and this seems to be a McAfee specific error but I can't find any resolution. It does appear to be a virus of some sort as it is spreading.
On one server that does not have McAfee installed it has started rebooting after a few minutes of uptime (windows reports error 128 in services.exe) this doesn't seem like a coincidence!