More Attacks against Computer Automatic Update Systems
Last month, Kaspersky discovered that Asus’s live update system was infected with malware, an operation it called Operation Shadowhammer. Now we learn that six other companies were targeted in the same operation.
As we mentioned before, ASUS was not the only company used by the attackers. Studying this case, our experts found other samples that used similar algorithms. As in the ASUS case, the samples were using digitally signed binaries from three other Asian vendors:
- Electronics Extreme, authors of the zombie survival game called Infestation: Survivor Stories,
- Innovative Extremist, a company that provides Web and IT infrastructure services but also used to work in game development,
- Zepetto, the South Korean company that developed the video game Point Blank.
According to our researchers, the attackers either had access to the source code of the victims’ projects or they injected malware at the time of project compilation, meaning they were in the networks of those companies. And this reminds us of an attack that we reported on a year ago: the CCleaner incident.
Also, our experts identified three additional victims: another video gaming company, a conglomerate holding company and a pharmaceutical company, all in South Korea. For now we cannot share additional details about those victims, because we are in the process of notifying them about the attack.
Me on supply chain security.
EDITED TO ADD (6/12): Kaspersky’s expanded report.