Remember CryptoWall, the world’s most destructive ransomware? It’s back with a vengeance! CryptoWall 4.0 has surfaced with a multitude of encryption methods and evasion tactics that are tricking even the latest anti-virus programs. Ransomware is the worst possible threat for businesses as it encrypts all of your vital information, then demands a payment for the decryption key.
Tyler Moffitt, Sr. Threat Research Analyst at Webroot, explained, “CryptoWall 4.0 is the latest encrypting ransomware out right now and we’ve already observed it spreading. With the huge ‘success’ of CryptoWall 3.0, I anticipate this variant to be the number one threat to watch out for going into 2016.”
Are you prepared to fend off the destructive ransomware that costs you thousands, or worse, tens of thousands of dollars to recover?
You’ve heard the saying ‘knowledge is power,’ and it’s absolutely true when it comes to fending off threats such as ransomware. Here are the top factors you need to know, in order to face the latest version of the most destructive ransomware:
The creators of CryptoWall 4.0 have given the ransomware a new name: help_your_files_ransomware. If you notice the phrase, make sure to call an experienced team of IT security professionals immediately. Also, make sure you’ve updated your file screening to include the phrase.
If you’re not absolutely certain of the sender, do not open suspicious email attachments, even if it’s from someone you know, check the source. Don’t hesitate to call the sender and ask if they sent you something in the form of an attachment. Email attachments are still the most commonly used way to send ransomware.
In an effort to further frustrate victims into paying the fee, the attackers have started encrypting filenames, as well as files, so you’re not able to tell what files have been targeted and encrypted! This means filenames will appear with names including random letters and numbers.
The good news is CryptoWall 4.0 behaves exactly like previous versions, although the encryption methods and evasion tactics are more advanced. CryptoWall 4.0 still infects in the same way, encrypts files n the same way, and uses the same domain to request/receive payments. This means you can prepare in the same way.
CryptoWall 4.0 is stronger and more sophisticated than previous versions, but ultimately, it’s the same preventative measures that matter:
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