
Files purloined during the substantial MSI hack last month have started to proliferate around the dark web. One of the more worrying things spotted among the digital loot is an Intel OEM private key. MSI would have used this to sign its firmware/BIOS updates to pass Intel Boot Guard verification checks. Now hackers can use the key to sign malicious BIOS, firmware and apps, which will look entirely like official MSI releases.
In the wake of being hacked last month, MSI began to urge customers to source firmware/BIOS updates exclusively from its official website. The well known PCs, components and peripherals firm was being extorted by a ransomware group called Money Message. Apparently the extortionists had swiped 1.5TB of data, including various source code files, private keys, and tools to develop firmware. Reports said that Money Message were asking for over four million dollars, to return the entirety of the data back to MSI. Over a month has passed, and it looks like MSI hasn't paid up. Therefore, we are now seeing the fallout.