sb-nz logo
Story image

New research reveals methods to mitigate the impact of ransomware

09 Aug 2016

CyberArk recently released new ransomware research.

Based on more than 23,000 real-world samples from common ransomware families, the research was able to gain insights into typical ransomware behaviour and in doing so, identify potential solutions for mitigating the impact of their attacks.

“Ransomware has emerged as a credible and opportunistic tactic for attackers, leaving infected organisations with the difficult choice of abandoning hijacked data or paying cybercriminals for the chance to retrieve their files,” says Chen Bitan, general manager, EMEA & APJ, CyberArk. “By analysing how ransomware typically behaves, we’ve been able to gain critical insight into how to help protect against these attacks."

According to research, in 2015 there was almost 407,000 attempted ransomware infections, accounting for hundreds of millions of dollars forced from victims. What’s worse, these numbers are expected to rise. In light of this, CyberArk Labs tested ransomware samples from more than 30 prevalent malware families, including Cryptolocker, Petya and Locky, with the goal to gain a better understanding of common infection, encryption and removal characteristics.

Among the key findings, the CyberArk Labs were able to demonstrate that application control, including greylisting, coupled with the removal of local administrator rights was 100 percent effective in stopping ransomware from encrypting files. This was in comparison to the effectives of other mitigation strategies like the use of traditional anti-virus software that relies on known blacklists.

What’s more, while many strains of malware these days require local administrator rights to properly execute, there are a lot of varieties of ransomware that don’t require these rights. While 70 percent of ransomware variants did attempt to gain local administrator rights, a miniscule 10 percent would actually fail to execute their malicious task if these rights weren’t attained.

CyberArk affirms that organisations need to update their security methods (like combining the removal of local administrator rights with application control to prevent file encryption), as ransomware is quite a different beast from other malware varieties.

“Moving beyond traditional anti-virus solutions, which are not effective in blocking ransomware, and adopting a proactive approach to endpoint and server security is an important step in protecting against this fast-moving and morphing malware,” concludes Bitan.

Story image
BayCom partners with NICE inContact to offer cloud contact centre platform in NZ
“With our extensive experience in the industry, BayCom has the ability to design, implement and support CXone nationwide, providing organisations with an industry-leading Contact Centre as a Service (CCaaS) solution to deliver on their customer experience strategies.”  More
Story image
NZX, Metservice attacks show Kiwi companies must rethink cyber security
The attacks are a wake-up call for New Zealand businesses to step up their threat protection and contingency planning systems.More
Story image
Five Eyes nations want legal access to backdoors to fight 'illegal content'
The nations argue that encryption can make the enforcement of public safety difficult, particularly when it comes to serious problems like child exploitation. More
Link image
The importance of data resilience in the current cybersecurity climate
Protecting an organisation's data is one of the most crucial functions of any CISO. Strategies should be in place where data is stored securely and cost-effectively.More
Story image
Video: 10 Minute IT Jams - protecting data with user behaviour analytics
In this video, Forcepoint senior sales engineer and solutions architect Matthew Bant discusses the company's DLP solution, the importance of integrating compliance into security solutions, and why cybersecurity strategies should take a more people-based approach.More
Story image
Cybersecurity market continues meteoric ascent
With the increase in cyberattacks, organisations are continuing to spend more money on security. However, without a focused cybersecurity strategy, they often spend it in the wrong areas.More