On a properly functioning router, such as the MikroTik hAP (RB951Ui-2nD), the electrical resistance between the Ethernet lines «Rx» and «Tx» should be 150 ohms ±4%.
Сrypto-mining virus on MikroTik in RouterOS
The performance of MikroTik devices can be affected by a crypto-mining virus, due to a vulnerable version of RouterOS or its configuration.