Security Experts:

Connect with us

Hi, what are you looking for?

SecurityWeekSecurityWeek

Cybercrime

Deadbolt Ransomware Targeting Asustor NAS Devices

Storage solutions provider Asustor this week issued a warning to alert users of Deadbolt ransomware attacks targeting its network-attached storage (NAS) appliances.

Storage solutions provider Asustor this week issued a warning to alert users of Deadbolt ransomware attacks targeting its network-attached storage (NAS) appliances.

Claiming to be exploiting a zero-day vulnerability for initial access, Deadbolt ransomware operators have been targeting Internet-facing QNAP NAS devices since January and managed to quickly hack many systems.

In the attacks targeting QNAP appliances, the ransomware operators were asking victims to pay a 0.03 Bitcoin (roughly $1,100) ransom in exchange for the decryption key. In light of these and other attacks, QNAP extended the security updates for some EOL devices until October 2022.

QNAP also encouraged users to properly secure their NAS devices and to make sure they are not exposed directly to the Internet.

In the wake of the new Deadbolt ransomware attacks, Asustor too urges users to improve the security of their NAS appliances, by changing default ports (including web access ports), immediately backing up data on the device, turning off Terminal/SSH and SFTP services, and disabling EZ Connect.

[READ: QNAP Warns NAS Users of DeadBolt Ransomware Attacks]

Asustor recommends immediately unplugging from the Internet and turning off devices infected with Deadbolt. Such devices should not be initialized – as this would erase all data; instead, users are advised to contact the company.

In an alert this week, the New Zeeland CERT team notes that Asustor models AS5104T, AS5304T, AS6404T, AS7004T, AS5202T, AS6302T, and AS1104T that are exposed to the Internet and running ADM operating systems are at risk of infection.

Users can identify infected devices by logging into their QNAP or Asustor NAS and searching for devices that have the .deadbolt extension.

CERT NZ encourages all organizations to apply security updates where available, as the attackers are exploiting vulnerabilities in NAS devices to gain access and encrypt data.

Related: QNAP Warns of New Crypto-Mining Malware Targeting NAS Devices

Related: Exploit Released for Critical Vulnerability Affecting QNAP NAS Devices

Related: QNAP Warns NAS Users of ‘dovecat’ Malware Attacks

Written By

Ionut Arghire is an international correspondent for SecurityWeek.

Click to comment

Expert Insights

Related Content

Cybercrime

Zendesk is informing customers about a data breach that started with an SMS phishing campaign targeting the company’s employees.

Cybercrime

The release of OpenAI’s ChatGPT in late 2022 has demonstrated the potential of AI for both good and bad.

Management & Strategy

Industry professionals comment on the recent disruption of the Hive ransomware operation and its hacking by law enforcement.

Cybercrime

The FBI dismantled the network of the prolific Hive ransomware gang and seized infrastructure in Los Angeles that was used for the operation.

Malware & Threats

Microsoft plans to improve the protection of Office users by blocking XLL add-ins from the internet.

Cybercrime

A new study by McAfee and the Center for Strategic and International Studies (CSIS) named a staggering figure as the true annual cost of...

Ransomware

US government reminds the public that a reward of up to $10 million is offered for information on cybercriminals, including members of the Hive...

Ransomware

The Hive ransomware website has been seized as part of an operation that involved law enforcement in 10 countries.