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#1 trevorcork


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Posted 24 November 2016 - 05:46 AM

Hi  a small business i do IT work for were hit with a Crypto virus zendrz file, its now removed and all data restored, im just wondering, whats the best AV or tool to detect and stop these infections before they get on to the system

Edited by hamluis, 24 November 2016 - 08:00 AM.
Moved from Win 7 to Gen Security - Hamluis.

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#2 quietman7


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Posted 24 November 2016 - 06:52 PM

The best defensive strategy to protect yourself from malware and ransomware (crypto malware) infections is a comprehensive approach. Make sure you are running an updated anti-virus and anti-malware product, update all vulnerable software, use supplemental security tools with anti-exploitation features capable of stopping (preventing) infection before it can cause any damage, close RDP if you do not need it, use secure passwords and routinely backup your data...then disconnect the external drive when the backup is completed. If you must use RDP, the best way to secure it is to either whitelist IP's on a firewall or not expose it to the Internet. Put RDP behind a firewall, only allow RDP from local traffic, setup a VPN to the firewall and enforce strong password policies, especially on any admin accounts or those with RDP priveledges.For more suggestions to protect yourself from ransomware infections, see my comments (Post #2) in this topic...Ransomware Avoidance.

BTW...The .zendrz extension appended to the end of the encrypted data filename is a variant of Globe Ransomware which typically leave files (ransom notes) named How to restore files.hta, Important Information.hta.

There is an ongoing discussion in this topic where you can post comments, ask questions and seek further assistance. Other victims have been directed there to share information, experiences and suggestions.Rather than have everyone with individual topics, it would be best (and more manageable for staff) if you posted any more questions, comments or requests for assistance in the above support topic discussion...it includes experiences by experts, a variety of IT consultants, end users and company reps who have been affected by ransomware infections.

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#3 JohnnyJammer


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Posted 24 November 2016 - 11:24 PM

First i would say is disable all scripting either using noscript.exe from symantec or webroot has their own version.

Then set a GPO to change all file type association RE:.js.wsh,vbs etc etc etc to open in notepad.

Disable .exe's etc in %appdata% && %localappdata% from running and executing.


Disable macros by default in all office applications and get a good AV, i use ESET and lastly EDUCATE the users.

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