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Woburn, MA – March 28, 2017 – Today, Kaspersky Lab ICS CERT experts have revealed new research that shows on average, two-in-five computers related to the technological infrastructure of industrial enterprises faced cyberattacks in the second half of 2016.
Additionally, the research shows that the percentage of industrial computers under attack grew from over 17 percent in July 2016 to more than 24 percent in December 2016. The top three sources of infection were the internet, removable storage devices, and malicious e-mail attachments and scripts embedded in the body of e-mails.
As the technology and corporate networks of industrial enterprises become increasingly integrated, more and more cybercriminals are turning their attention to industrial enterprises as potential targets. By exploiting vulnerabilities in the networks and software used by these enterprises, attackers could steal information related to the production process or even bring down manufacturing operations, leading to technogenic disaster.
In order to find out how widespread the threat is, Kaspersky Lab ICS CERT specialists have conducted dedicated research into the cyberthreat landscape faced by ICS systems.
Kaspersky Lab experts discovered that during the second half of 2016, malware downloads and access to phishing webpages were blocked on over 22 percent of industrial computers. This means that almost every fifth machine faced the risk of infection or credential compromise via the internet at least once.
The desktop computers of engineers and operators working directly with ICS do not usually have direct access to the internet due to the limitations of the technology network in which they are located. However, there are other users that have simultaneous access to the internet and ICS. According to Kaspersky Lab research, these computers – presumably used by system and network administrators, developers and integrators of industrial automation systems, as well as third party contractors who connect to technology networks directly or remotely – can freely connect to the internet because they are not tied to only one industrial network with its inherent limitations.
The internet is not the only thing that threatens the cybersecurity of ICS systems. The danger of infected removable storage devices is another threat spotted by the company’s researchers. During the period of research, 10.9 percent of computers with ICS software installed (or connected to those that have this software) showed traces of malware when a removable device was connected to them.
Malicious e-mail attachments and scripts embedded in the body of e-mails were blocked on 8.1 percent of industrial computers, taking third place. In most cases, attackers use phishing e-mails to attract the user's attention and disguise malicious files. Malware was most often distributed in the format of office documents such as MS Office and PDF files. Using various techniques, the criminals made sure that people downloaded and ran malware on the industrial organization’s computers.
According to Kaspersky Lab research, malware, which poses a significant threat to companies around the world, is also dangerous to industrial enterprises. This includes spyware, backdoors, keyloggers, financial malware, ransomware, and wipers. These can completely paralyze the organization’s control over its ICS or can be used for targeted attacks respectively. The latter is possible because of inherent functions that provide an attacker with lots of possibilities for remote control.
“Our analysis shows us that blind faith in technology networks’ isolation from the internet doesn’t work anymore,” said Evgeny Goncharov, head of critical infrastructure defense department, Kaspersky Lab. “The rise of cyberthreats to critical infrastructure indicates that ICS should be properly secured from malware both inside and outside the perimeter. It is also important to note that according to our observations, the attacks almost always start with the weakest link in any protection – people.”
Additional key findings from the Kaspersky Lab report “Industrial automation systems threat landscape in the second half of 2016” are:
- Every fourth targeted-attack detected by Kaspersky Lab in 2016 was aimed at industrial targets
- About 20,000 different malware samples were revealed in industrial automation systems belonging to over 2,000 different malware families.
- 75 vulnerabilities were revealed by Kaspersky Lab in 2016. Fifty-eight of them were marked as maximum critical vulnerabilities.
- The top three countries that were experienced industrial computer attacks: Vietnam (more than 66 percent), Algeria (over 65 percent) and Morocco (60 percent).
In order to protect the ICS environment from possible cyber-attacks, Kaspersky Lab security experts advise the following:
- Conduct a security assessment to identify and remove security loopholes
- Request external intelligence from reputable vendors. This helps organizations to predict future attacks on the company’s industrial infrastructure.
- Provide protection inside and outside the perimeter A proper security strategy has to devote significant resources to attack detection and response, to block an attack before it reaches critically important objects.
- Provide protection inside and outside the perimeter. A proper security strategy has to devote significant resources to attack detection and response, to block an attack before it reaches critically important objects
- Evaluate advanced methods of protection A Default Deny scenario for SCADA systems, regular integrity checks for controllers, and specialized network monitoring to increase the overall security of a company will reduce the chances of a successful breach, even if some inherently vulnerable nodes cannot be patched or removed.
- Train your personnel
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