The device was directly connected to the ATM network, which provides full access to the bank’s internal systems. The main objectives are to cut the ATM management server and to control the protective module that store important data and responsible for encryption.
A group of hackers, known as UNC2891, have been operating since 2017 and specialized in attacks on banking systems. Previously, they used complex malware that could be hidden from even professional experts.
In this case, the attackers applied a new way to mask the harmful code to the usual system process, which complicated the determination. They also hacked the bank’s mail server to provide a continuous connection with Raspberry Pi through the monitoring server.
Fortunately, the attack was discovered and stopped before the pirates of computer pirates succeeded in implementing their plans.
Source: Ferra
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