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Cybersecurity Blog

Thought leadership. Threat analysis. Cybersecurity news and alerts.

2/16/2019

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Can Your Organization Survive a Cyberattack that Permanently Destroys Data?

 
data destruction cyberattack

Can Your Organization Survive a Cyberattack that Permanently Destroys Data?

Financial gain, either short-term or long-term, is often the motive of most cyber criminals. Some cyber criminals, however, aren’t after financial gain, but rather, they’re simply out to cause as much damage as possible.

The recent cyberattack at email service provider VFEmail shows an unconventional motive of simple destruction. Milwaukee-based VFEmail, founded in 2001, provides email service to businesses and individuals.

The first hints of the cyberattack on VFEmail came out last February 11, when the company’s Twitteraccount issued a series of tweets about the attack, starting with a tweet that said, “This is not looking good. All externally facing systems, of differing OS's and remote authentication, in multiple data centers are down.”

By 5 PM on February 11, the company declared on its website, “We have suffered catastrophic destruction at the hands of a hacker.” The company added that the attacker destroyed nearly two decades' worth of emails of all data in the US, both primary and backup systems.

The company further said that the attacker hasn’t asked for ransom. “Just attack and destroy," the company said. When asked about the identity of the attacker, VFEmail owner Rick Romero tweetedit could be "someone who had data they didn't want found or I really pissed off."

This recent cyber incident isn’t the first time that cyber criminals have targeted VFEmail. In a blog postdated November 4, 2015, Romero shared that a group of hackers threatened to launch a distributed denial-of-service (DDoS) on his email service if he doesn’t pay 5 Bitcoins.

True enough, after refusing to pay the ransom, VFEmail’s email service was disrupted by a DDoS attack prompting Romero to expose the group's extortion campaign. In 2017, the company’s email service was once again disrupted by a series of DDoS attacks, prompting the company to change to a new hosting provider. In 2018, the company’s email service was once again disrupted by a DDoS attack.

It isn’t clear what actually caused the latest cyberattack on VFEmail. What’s clear though is that the company’s nearly two decades' worth of emails of all data in the US, both primary and backup systems, are lost forever. 

Other Cases of Disruptive Cyberattacks

WannaCry and NotPetya

WannaCry and NotPetya are two examples of cyberattacks that were meant mainly to destroy. At the height of WannaCry attack on May 12, 2017, an estimated 300,000 computers in 150 countries were infected by WannaCry malicious software (malware). Six weeks after the WannaCry attack, NotPetya malware was launched although it didn’t have as much impact as WannaCry.

Both WannaCry and NotPetya exhibit the characteristics of a ransomware, a type of malware that’s designed to deny legitimate users access to computer files by encrypting these files. Similar to other ransomware, WannaCry and NotPetya attackers also demanded ransom from their victims, assuring them that once ransom is paid, the decryption key that would unlock the encrypted files would be given.

While exhibiting the characteristics of a ransomware, both WannaCry and NotPetya were later found to be wipers – malware whose sole purpose was to destroy. Both WannaCry and NotPetya are considered as wipers, not ransomware, as despite paying ransom to the attackers, the attackers wouldn’t be able to give the correct decryption key as they themselves have no way of determining who paid the ransom and who didn’t. 

Shamoon

Shamoon is another malware whose main purpose is destruction. In December 2018, Italian oil services firm Saipemreported that its servers based in the Middle East, India, Aberdeen and, in a limited way, Italy were infected by a variant of Shamoon malware. As typical effects of the Shamoon malware, Saipem said in a statement, the infection resulted in the "cancellation of data and infrastructures." Days after the statement, the company’s head of digital and innovation, Mauro Piasere, told Reutersthat the attack crippled between 300 and 400 servers and up to 100 personal computers out of a total of about 4,000 Saipem machines.

According to Symantec, the latest version of Shamoon is far more destructive than the original Shamoon as the latest version has a new, second piece of wiping malware called “Trojan.Filerase,” a malware that deletes and overwrites files on the infected computer; while the original Shamoon malware itself erases the master boot record of the computer, rendering the computer unusable.

Because of the Filerase malware in the latest Shamoon version, Symantec said, recovery becomes impossible, compared to the older version of Shamoon in which the “files on the hard disk may be forensically recoverable.”

Prevention

Here are some cybersecurity best practices in order to help prevent or minimize the effects of destructive cyberattacks – attacks that are meant to destroy:

Keep All Software Up-to-Date

Installing the latest patch or security update in a timely manner is one of the ways to keep destructive attacks at bay. Patches or security updates fix known security vulnerabilities that are likely to be exploited by cyber criminals.

Back-up Important Data

Similar to safeguarding your organization’s data from natural disasters, including fire and flood, having a back-up of important data will enable your organization to bounce back from a debilitating destructive cyberattack.

Practice Network Segmentation

It’s also important to practice network segmentation – the process of dividing your organization’s network into subnetworks. Network segmentation ensures that in case an attacker is able to infiltrate one of your organization’s network, the other networks won’t be affected.

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