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A vulnerability in the Log4j logging library allowed hackers to gain remote access to modern HPE server systems. The attackers used the hack to install Raptoreum (RTM) miners, a fork of Ravecoin, whose blocks are mined using the innovative GhostRider algorithm.
RTM mining is based on a combination of Cryptonite and x16r with a wider randomization that reliably protects the blockchain from ASIC miners, while also focusing on hash calculations using the CPU.
Raptoreum is most efficiently mined on AMD CPUs with a larger L3 cache. Hacked HPE servers were packed with rare Zen 3 Milan chips. They had three times the Ryzen 9 L3 cache, allowing the hackers to seize 30% of the network’s reward within a week.
HPE servers worked for the attackers from December 9th to December 17th. Security analysts did not name the companies affected. The hackers’ mining is estimated at $ 110 thousand at the time the attack was detected. However, they are in no hurry to implement RTM, more than half of the tokens are in the wallet without movement.
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