Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Vulnerabilities / Threats

1/22/2018
06:50 PM
Connect Directly
Twitter
LinkedIn
RSS
E-Mail
50%
50%

Satori Botnet Malware Now Can Infect Even More IoT Devices

Latest version targets systems running ARC processors.

The authors of the Satori IoT malware family have dramatically increased their pool of bot recruits for attack botnets with a new version of the tool targeting systems running ARC processors.

The latest Satori variant, the fourth since the malware first surfaced in Dec. 2017, appears to be the first aimed specifically at ARC chipsets, DDoS attack mitigation vendor Arbor Networks said in an advisory this week.   

ARC processors are 32-bit power-efficient CPUs that are used in a wide range of applications including automotive, industrial, and IoT. More than 1.5 billion embedded systems containing ARC cores ship every year, including electronic steering controls and infotainment systems in cars, as well as personal fitness bands and digital TV set tops, and smart thermostats.

Like other Satori variants, the newest one also leverages the Mirai code base. Like Mirai, it is designed to propagate through credential scanning, meaning the malware can potentially infect any ARC device with default and easily guessable telnet usernames and passwords. The previous Satori variant specifically targeted Huawei routers.

It's hard to say which specific ARC-based devices the Satori authors are hoping to target because of the huge installed base of systems, says Peter Arzamendi, security researcher at NETSCOUT, Arbor's Security Engineering & Response Team. 

However, "botnets that target new and novel types of IoT devices is the new normal," he says. "With the proliferation of IoT and BYOD, enterprises will need to understand how to both defend these devices and be able to respond when they are compromised," Arzamendi says.

Support for ARC processors allows Satori variants to target a wide range of systems including those based on Intel, ARM, MIPS, PPC, and SuperH processor architectures. All of the variants differ slightly in targeting and in capabilities.

Building malware for a new processor architecture like ARC is not too difficult an endeavor and only requires a compiler that supports the architecture, and some open source tools to help with porting code, says Arzamendi.

"IoT [botnets] depend on compromising as many devices as possible. Threat actors will have less competition by focusing on new types of devices that others are not targeting," he says of the latest Satori development.

On Defense

With DDoS-capable malware available for a wider range of Internet-connected devices than when Mirai first surfaced in late 2016, network operators need to review their defense strategies, according to Arbor.

In addition to protections against DDoS attacks, businesses need to ensure their own IoT network and device is not being used in DDoS attacks, Arbor said. "The collateral damage due to scanning and outbound DDoS attacks alone can be crippling if network architectural and operational best current practices are not proactively implemented," the security vendor said in its advisory.

Adam Meyers, vice president of intelligence at CrowdStrike, says organizations need to invest in DDoS protection if they haven't done so already, and ensure they know what to do in the event of an attack. Tabletop exercises are a great way to ensure that all stakeholders are in lockstep when an attack does occur, he says.

"Protecting against IoT botnets will become increasingly difficult as IoT devices age in place," Meyers says. "A bulk of these devices is going to remain deployed as long as they continue to function, and patching will not be widespread. In addition, new vulnerabilities in some of these platforms will continue to be identified."

In addition to DDoS attacks, enterprises should also be aware of the fact that IoT botnets can be used for other purposes such as: creating a non-attribution proxy network for criminal enterprises, distributing spam, and hosting Web content for phishing.

Related Content:

 

Jai Vijayan is a seasoned technology reporter with over 20 years of experience in IT trade journalism. He was most recently a Senior Editor at Computerworld, where he covered information security and data privacy issues for the publication. Over the course of his 20-year ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Zero-Factor Authentication: Owning Our Data
Nick Selby, Chief Security Officer at Paxos Trust Company,  2/19/2020
44% of Security Threats Start in the Cloud
Kelly Sheridan, Staff Editor, Dark Reading,  2/19/2020
Ransomware Damage Hit $11.5B in 2019
Dark Reading Staff 2/20/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
6 Emerging Cyber Threats That Enterprises Face in 2020
This Tech Digest gives an in-depth look at six emerging cyber threats that enterprises could face in 2020. Download your copy today!
Flash Poll
How Enterprises Are Developing and Maintaining Secure Applications
How Enterprises Are Developing and Maintaining Secure Applications
The concept of application security is well known, but application security testing and remediation processes remain unbalanced. Most organizations are confident in their approach to AppSec, although others seem to have no approach at all. Read this report to find out more.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-7914
PUBLISHED: 2020-02-21
btif/src/btif_dm.c in Android before 5.1 does not properly enforce the temporary nature of a Bluetooth pairing, which allows user-assisted remote attackers to bypass intended access restrictions via crafted Bluetooth packets after the tapping of a crafted NFC tag.
CVE-2016-4606
PUBLISHED: 2020-02-21
Curl before 7.49.1 in Apple OS X before macOS Sierra prior to 10.12 allows remote or local attackers to execute arbitrary code, gain sensitive information, cause denial-of-service conditions, bypass security restrictions, and perform unauthorized actions. This may aid in other attacks.
CVE-2020-5243
PUBLISHED: 2020-02-21
uap-core before 0.7.3 is vulnerable to a denial of service attack when processing crafted User-Agent strings. Some regexes are vulnerable to regular expression denial of service (REDoS) due to overlapping capture groups. This allows remote attackers to overload a server by setting the User-Agent hea...
CVE-2019-14688
PUBLISHED: 2020-02-20
Trend Micro has repackaged installers for several Trend Micro products that were found to utilize a version of an install package that had a DLL hijack vulnerability that could be exploited during a new product installation. The vulnerability was found to ONLY be exploitable during an initial produc...
CVE-2019-19694
PUBLISHED: 2020-02-20
The Trend Micro Security 2019 (15.0.0.1163 and below) consumer family of products is vulnerable to a denial of service (DoS) attack in which a malicious actor could manipulate a key file at a certain time during the system startup process to disable the product's malware protection functions or the ...