Tech

Hackers earned $ 110,000 for mining remotely on hijacked HP servers

In short: Between December 9th and 17th, the HP servers data center made the largest contribution to the Raptoreum blockchain cryptocurrency. At its peak, the center exceeded the performance of all other mining systems combined. A later investigation revealed that the servers were most likely under the control of hackers during this period, who should have made an estimated $ 110,000.

Currently, the company whose servers have been hacked has not announced itself. They are likely to be one of a hundred large computer groups that announced themselves this month as victims of the Log4J virus vulnerability, which include Amazon, IBM and Microsoft.

The Log4J vulnerability was discovered in early December and allows remote execution of arbitrary code even on systems running as localhost without external connections. It has since been widely patched, although it continues to haunt servers in niche environments.

It was the sudden disappearance of the HP server group on December 17th, indicating that the servers were patched, showing that they were being used without reconciliation. However, one of them continued to mine; it may not have been fixed or is being kept as bait.

All this information is available for viewing through the Raptoreum blockchain. Its developers paying attention to it to dispel the rumor that Raptoreum is unstable. Raptoreum’s underlying algorithm, GhostRider, is a mixture of proof of work and proof of interest that is intentionally resistant to accelerators and other causes of instability.

GhostRider is especially fond of AMD processors due to their large amount of L3 cache. Raptoreum is surprisingly beneficial to the expensive AMD Epyc server processors due to its 256MB cache on models with 32 or more cores. This likely prompted hackers to attack HP’s servers, which an unofficial investigation by the Raptoreum developers revealed were 9000-series and used Epyc processors.

During the period when the HP servers were mining, the address to which they belonged accumulated about 30% of the total block reward, or 3.4 million RTM. When the hackers sold half on CoinEx, it was worth about $ 110,000, but the remaining half has dropped slightly since then.

Credit to masthead: Lars Keenle


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