Researcher developed hidden miner for public Wi-Fi

An anonymous researcher was inspired by the hidden mining incedent in Star Bucks network in December 2017 in Buenos Aires
10 January 2018   1267

Anonymous researcher under nickname "Arnau" published a concept and the associated investigation of the CoffeeMiner attack, which allows to mine through public Wi-Fi networks.

Created for educational purposes, the Arnau's study was inspired by an incident that occurred in December 2017 in Buenos Aires. Local network of Starbucks coffee houses was mining hiddenly with the help of devices connected to the public Wi-Fi network.

The CoffeeMiner attack is designed to spoof the Address Resolution Protocol (ARP) to intercept unencrypted traffic from devices on the same network.

For injection of HTML-code into unprotected traffic, the console program mitmproxy is used. As a result, JavaScript is launched, which draws CPU resources, using them for mining.

CoffeeMiner Concept
CoffeeMiner Concept

In his tests, the researcher used the popular "browser" mining script. Coinhive and extracted the Monero crypto currency.


Specialist notes that such an attack can be easily automated. And although in the current form CoffeeMiner can not work with HTTPS, this problem can be solved, for example, using sslstrip.

Source code is available at GitHub.

SBI Holdings to Start Mining Chips Manufacturing

The new enterprise will work in partnership with an unnamed major semiconductor manufacturer from the United States
22 March 2019   95

The Japanese financial conglomerate SBI Holdings announced the creation of a new enterprise that will focus on the production of chips and cryptocurrency mining systems.

The message on the company's website says that SBI Mining Chip Co. (SBIMC) is part of SBI Holdings digital asset strategy.

The new enterprise will work in partnership with an unnamed major semiconductor manufacturer from the United States, and a former head of Chip Estimate and WearSens Adam Trademan, will head it. Currently, Trademan heads the BRD mobile cryptocurrency wallet development company, in which SBI Holdings invested $ 15 million in January of this year.

Recall that its plans to launch a broad offensive against the cryptocurrency industry were announced by SBI Holdings in October 2017. Since then, the corporation has made numerous investments in various projects, and also intends to promote the mass adoption and practical use of the RR Xle XRP token.