Cryptowall 4.0: The Worst Ransomware Yet

On December 4th, 2015, posted in: Security Threats by Comments Off on Cryptowall 4.0: The Worst Ransomware Yet

Cryptowall 4.0: The Worst Ransomware Yet is Here - Discovery Why Your Antivirus Might NOT Detect It!

Cryptowall 4.0, the fourth generation of the world’s worst ransomware is here. As if Cryptowall 2.0, wasn’t bad enough, (released October 2014), attackers then released Cryptowall 3.0 two months later in January of 2015.

The criminal minds behind Cryptowall have been busy cooking up the next generation of Cryptowall ransomware over the past 10 months. The November debut of Cryptowall 4.0 is vastly improved so it can exploit more vulnerabilities.

What’s worse, in 4.0 you won’t even know what files are encrypted because the file names are now encrypted.

Cryptowall 4.0 Can Fly Under the Radar, Undetected by Your Antivirus Program

With stronger encryption tactics and better evasion tricks than ever, this malicious ransomware is now sophisticated enough to fool many antivirus platforms.

Crytpowall-4.0-1According to Cyber Threat Alliance, the group behind Cryptowall 3.0 made $325 million dollars this year. This dwarfs the FBI’s June predictions which noted they brought in a mere $18 million in extortions from businesses and end-users.

Above all, the stealthy, under-the-radar aspect of 4.0 is contributing to a lower detection rate, compared to the Cryptowall 3.0 attacks. This means some businesses were unknowingly making backups that contained encrypted data that couldn’t be decrypted unless a ransom was paid.

How is Cryptowall 4.0 Spread?

Most often, Cryptowall 4.0 spreads through email. The phishing email lands in your inbox and infiltrates your computer when you open an infected attachment or click on a link in the email.

This, among many other reasons, is why it’s beneficial to not only have a spam filter in place, but also know how to use it.

What Should You Do if You Get Infected by Cryptowall 4.0?

virus-1Unfortunately, your choices arelimited. You can reformat your computer and restore your data from backup (and hope your backup wasn’t infected) or pay the ransom for the decryption key.

However, we DON’T suggest paying the ransom, because that doesn’t guarantee you’ll get the key and you might put yourself in a position that encourages more criminal activities!

How to Lower Your Risk of Cryptowall 4.0 Infiltrating Your Business

  • Ensure your business has a reliable backup solution and procedure in place. Backup alone is not enough, you must TEST and verify that your backup works!
  • Establish a disaster recovery/business continuity plan.
  • Confirm you have a layered security approach.
  • Keep all business systems and software programs up-to-date and ensure staff members do the same.
  • Confirm all employees have a credible, reliable spam filter, that they know how to use.
  • Train your staff to recognize spam and phishing emails. If you don’t trust the sender, don’t open the email! When in doubt, ask us!
  • Do NOT pay the ransom. Here’s why.
  • Staying proactive is key. Don’t learn your lesson the hard way.

Ready to Cryptowall Proof Your Business?

We’ll help you evaluate your business network and ensure you have reliable backup systems and procedures in place. Contact us today to ensure your network has the proactive systems in place to keep Cryptowall 4.0 out of your business!

Put us to the test. There is NO obligation and NO commitment required for our No-Fee, 100% Free Network Discovery.

To get recommendations and have one of our highly qualified techs evaluate your network, request a free network discovery where we will offer ways to keep Cryptowall 4.0 ransomware along with any other unscrupulous viruses OUT of your network and IT systems.

Your network discovery will include an audit of your current network, infrastructure, server(s), PC’s, backup, security performance and reliability, followed by a non-technical Q&A Session with our Network Consultant.

For technology questions or any other inquiry, please contact our office by email or by phone at (262) 522-8560.

Read previous post:
Please Welcome Ontech’s Tiniest New Addition, Lindsey Theresa Piotrowski!

We are excited to announce and welcome the daughter of Mike and Kristy Piotrowski to the Ontech Systems family!