You may remember that I sent an alert a few months ago about the latest threat in "viruses" — ransomware like cryptolocker.
Well, they're back with a vengeance !
A brand new breed — called Cryptowall has been detected in the wild and hitting corporate clients.
The new version has a distinctly Australian flavour.
This new Trojan arrives as a seemingly innocuous email like the one below, with your real name in the body of the email.
When you click on the suggested link, it immediately starts to encrypt all files you have access to on your computer and on the network.
As I have outlined previously, the best antivirus software programs are always playing catchup after the initial release of a new threat.
So, the best defence is always best practices. (see my suggestions below).
Please pass this warning onto your colleagues.
Why should businesses care?
The virus attacks all drives the computer can see (including dropbox folders , usb drives and network drives to the office (locally or over a VPN!)
Imagine if all of your businesses files were totally encrypted!
How do I get infected ?
This infection is typically spread through emails sent to company email addresses that pretend to be customer support related issues or invoice demands from reputable courier companies. These emails would contain a link or an attachment that when opened would automatically infect the computer.
Once infected, the Trojan begins encrypting your data.
Trojans typically do not spread to other computers.
Best practices :
If your login can connect to other computers and servers and make changes – so can the virus. This is one reason why we normally lock down networks we manage.
Note : All of our Fully Managed Clients already have the latest preventative measures in place