Page 59 - Cyber Warnings

So, how should people protect themselves? In addition to the tips my colleague, Rick Cantrell,
gave in his blog, here are a few to protect your personal computers, as well as those in a
corporate environment:

• If you can’t patch a system due to legacy software, disable SMBv1 and segregate those
devices from other systems on the network. Microsoft’s support article 2696547 details
how to disable SMBv1.

• Do not expose SMB ports to the internet (TCP 445, 139); properly configure your
perimeter firewall rules.

• Have known good backups; it isn’t enough to just do a backup; perform regular restore
tests to make sure you can recover your files.

There will almost certainly be copycat actors who will release new variants of WannaCry
Ransomware, so always remain vigilant. Stay safe!

About The Author

Jason Matlock is a security analyst and penetration tester for Sword & Shield
Enterprise Security. As a trusted security professional since 2005, Jason
brings expertise in internal/external security assessments, wireless security,
help desk, and endpoint security.

For more information about Jason and Sword & Shield, visit https://www.swordshield.com/.

59 Cyber Warnings E-Magazine – May 2017 Edition
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