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Everything You Need to Know About DNS AttacksIt's important to understand DNS, potential attacks against it, and the tools and techniques required to defend DNS infrastructure. This report answers all the questions you were afraid to ask.
Domain Name Service (DNS) is a critical part of any organization's digital infrastructure, but it's also one of the least understood. DNS is designed to be invisible to business professionals, IT stakeholders, and many security professionals, but DNS's threat surface is large and widely targeted.
Attackers are causing a great deal of damage with an array of attacks such as denial of service, DNS cache poisoning, DNS hijackin, DNS tunneling, and DNS dangling. They are using DNS infrastructure to take control of inbound and outbound communications and preventing users from accessing the applications they are looking for. To stop attacks on DNS, security teams need to shore up the organization's security hygiene around DNS infrastructure, implement controls such as DNSSEC, and monitor DNS traffic
Incident Readiness and Building Response Playbook
In this special report, learn the Xs and Os of any good security incident readiness and response playbook.
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1 Comments
User Rank: Ninja
11/4/2015 | 3:03:56 PM
Encrypt your data. CryptoWall can't encrypt files that are already encrypted by the end user.
The data can be decrypted on access which would lock the files currently opened. When the file is closed it is
automatically re-encrypted in realtime. As an extra layer of security it is also possible to encrypt volume shadow
copies of the files as the behavior of CryptoWall will automatically sdelete (Secure Delete) all shadow copy data
on the infected machine. I am no way suggesting not to backup your data. However, a proper retention policy
should also be correctly set to seven or more days. If a backup whether it be to a local, network drive, or cloud
based is not encrypted there remains the risk of the files being encrypted by the ransomware and changes of
modified files by CryptoWall propagating and overwriting the original backup of end user data. Also, CrytoWall
only affects files by extention (ie .docx, .qbw, .xlsx) If a file extention is modified to something completely
obscure in no relation with any application they will remain unaffected by this ransomware.