Security Experts:

Connect with us

Hi, what are you looking for?

SecurityWeekSecurityWeek

ICS/OT

Simulation Shows Threat of Ransomware Attacks on ICS

Researchers at the Georgia Institute of Technology have demonstrated the potential impact of ransomware on industrial control systems (ICS) by simulating an attack aimed at a water treatment plant.

Researchers at the Georgia Institute of Technology have demonstrated the potential impact of ransomware on industrial control systems (ICS) by simulating an attack aimed at a water treatment plant.

David Formby, a Ph.D. student in the Georgia Tech School of Electrical and Computer Engineering, and his faculty advisor, Raheem Beyah, identified several commonly used programmable logic controllers (PLCs) and tested three of them to determine how easily they can be hacked.

Once the devices were tested, including their password security and susceptibility to unauthorized configuration changes, the experts combined them with tubes, pumps and tanks in order to simulate a water treatment facility.

The attack simulation shows how an attacker with access to the PLCs can close valves, display false information to the operator, and increase the amount of chlorine added to the water.

“We were able to simulate a hacker who had gained access to this part of the system and is holding it hostage by threatening to dump large amounts of chlorine into the water unless the operator pays a ransom,” Formby said. “In the right amount, chlorine disinfects the water and makes it safe to drink. But too much chlorine can create a bad reaction that would make the water unsafe.”

Formby and Beyah discovered 1,400 instances of a single PLC type being accessible from the Internet, and pointed out that the organizations housing them often believe the devices are not vulnerable to attacks.

Related: Exploring Risks of IT Network Breaches to Industrial Control Systems (ICS)

Ransomware attacks typically target data, even if the victim is a critical infrastructure organization. Last year, the Board of Water and Light (BWL) in Lansing, Michigan, was targeted with ransomware, but the attack affected its corporate network and there was no disruption to water or energy supplies.

However, Formby, Beyah and other experts believe profit-driven cybercriminals could increasingly attack ICS, especially since these systems are often poorly protected.

Experts recently raised concerns about ransomware being brought into the industrial domain when KillDisk, a disk-wiping malware used in high-profile attacks aimed at ICS, had been modified to include ransomware capabilities.

UPDATE. The researchers have published a paper detailing the ransomware, which they have dubbed LogicLocker.

Related: Learn More at the 2017 Singapore ICS Cyber Security Conference

Related: Ukraine Power Company Confirms Hackers Caused Outage

Related: Overhyped Media Reports Bad For ICS Security

Written By

Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

Expert Insights

Related Content

Application Security

Cycode, a startup that provides solutions for protecting software source code, emerged from stealth mode on Tuesday with $4.6 million in seed funding.

CISO Strategy

Cybersecurity-related risk is a top concern, so boards need to know they have the proper oversight in place. Even as first-timers, successful CISOs make...

Malware & Threats

Microsoft plans to improve the protection of Office users by blocking XLL add-ins from the internet.

Management & Strategy

Industry professionals comment on the recent disruption of the Hive ransomware operation and its hacking by law enforcement.

Cloud Security

VMware vRealize Log Insight vulnerability allows an unauthenticated attacker to take full control of a target system.

Management & Strategy

SecurityWeek examines how a layoff-induced influx of experienced professionals into the job seeker market is affecting or might affect, the skills gap and recruitment...

IoT Security

Lexmark warns of a remote code execution (RCE) vulnerability impacting over 120 printer models, for which PoC code has been published.

ICS/OT

Otorio has released a free tool that organizations can use to detect and address issues related to DCOM authentication.