community.sophos.com/.../128101 In case anyone else runs into this and is looking for answers. Since 8:00pm CST on 1-12-2018 we are receiving "APCVoilation" alerts blocking all sorts of executables - explorer.exe, sophosclean.exe, svchost.exe... According to support, this is caused by the recent update to help mitigate "... a very recent method of attack." For the machines that have this problem, roughly 100 out of 1000 machines, the only differentiator that I can tell is Netmotion VPN software. These machines are anywhere from usable with virus alert popups in the corner, to unusable with explorer constantly crashing and restarting. I will update this when we have the issue resolved.
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