Alerts

Attackers using the Ragnar Locker ransomware have encrypted the systems of Portuguese multinational energy giant Energias de Portugal (EDP) and are now asking for a 1580 BTC ransom ($10.9M or €9.9M).

EDP Group is one of the largest European operators in the energy sector (gas and electricity) and the world’s 4th largest producer of wind energy.

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Cybersecurity researchers have discovered a new emerging IoT botnet threat that leverages compromised smart devices to stage ‘distributed denial-of-service’ attacks, potentially triggered on-demand through platforms offering DDoS-for-hire services.

The botnet, named “dark_nexus” by Bitdefender researchers, works by employing credential stuffing attacks against a variety of devices, such as routers (from Dasan Zhone, Dlink, and ASUS), video recorders, and thermal cameras, to co-opt them into the botnet.

So far, dark_nexus comprises at least 1,372 bots, acting as a reverse proxy, spanning across various locations in China, South Korea, Thailand, Brazil, and Russia.

“While it might share some features with previously known IoT botnets, the way some of its modules have been developed makes it significantly more potent and robust,” the researchers said. “For example, payloads are compiled for 12 different CPU architectures and dynamically delivered based on the victim’s configuration.”

Evidence gathered by Bitdefender points to greek.Helios as the individual behind the development of dark_nexus, who is a known botnet author infamous for selling DDoS services on social media platforms and using a YouTube channel to advertise its capabilities.

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Το Universal Plug and Play (UPnP) είναι ένα σύνολο πρωτοκόλλων δικτύωσης που επιτρέπει σε δικτυωμένες συσκευές, όπως προσωπικούς υπολογιστές, εκτυπωτές, Internet gateways, σημεία πρόσβασης Wi-Fi και κινητές συσκευές, να αναγνωρίζουν αδιάλειπτα την παρουσία άλλων συσκευών στο δίκτυο και να δημιουργήσουν λειτουργικές υπηρεσίες δικτύου για κοινή χρήση δεδομένων, πικοινωνίες και ψυχαγωγία. Το UPnP προορίζεται κυρίως για οικιακά δίκτυα χωρίς συσκευές enterprise-class.

Η τεχνολογία UPnP έχει προωθηθεί από το UPnP Forum, μία πρωτοβουλία στον κλάδο των ηλεκτρονικών υπολογιστών που επιτρέπει την απλή και ισχυρή σύνδεση με αυτόνομες συσκευές και προσωπικούς υπολογιστές από πολλούς διαφορετικούς προμηθευτές. Από το 2016, η τεχνολογία UPnP διοικείται από το Open Connectivity Foundation (OCF).

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In our previous posts, you might have already read about various campaigns warning how threat actors are capitalizing on the ongoing coronavirus pandemic in an attempt to infect your computers and mobile devices with malware or scam you out of your money.

Unfortunately, to some extent, it’s working, and that’s because the attack surface is changing and expanding rapidly as many organizations and business tasks are going digital without much preparation, exposing themselves to more potential threats.

Most of the recent cyber attacks are primarily exploiting the fears around the COVID-19 outbreak—fueled by disinformation and fake news—to distribute malware via Google Play apps, malicious links and attachments, and execute ransomware attacks.

Here, we took a look at some of the wide range of unseen threats rising in the digital space, powered by coronavirus-themed lures that cybercriminals are using for espionage and commercial gain.

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