Sophos blocking DNS with reason of "Memory Modified"
Posted: Sat Jul 06, 2013 8:04 am
I have had 3 clerk computers (running Sophos) suddenly lose access to the Internet. Upon further analysis and calls to support, we found that Sophos is blocking DNS requests with a reason of "Memory Modified". One support person had me disable the firewall as a work around. Not good. I found that I was able to turn it back on by disabling the "Memory Modified" check. I'd rather not do that either but its better than running with no firewall. I thought that perhaps there was a virus but I have not been able to locate one with different scanning programs (aside from Sophos which is also not reporting anything else) nor am i seeing any other signs that there is one. Still something odd must be causing it as its only been seen on 3 units' computers (in different buildings). Any ideas? Thanks.