BRANDEFENSE BRANDEFENSE
  • Home
  • Product
    How it works?
    Platform Overview
    Cyber Intelligence
    Brand & Reputation Protection
    Exposure Management
    Solutions
    Threat Intelligence Service
    Brand Protection
    Vulnerability Management
    Attack Surface Management
    Fraud Protection
    VIP Security
    Vulnerability Intelligence
    By Use Case
    Preventing Data Leakage
    Phishing Monitoring
    Account Takeover Detection
    Stolen Credit Cards
    Dark Web Monitoring
    Remediation and Takedown
    brandefense background
    Eliminate risks
    Explore the Brandefense
  • Blog
  • Resources
    Security News
    Threat Intelligence Researches
    Digital Risk Protection – FAQ
    We in the Press
  • Partners
    Channel Partners
    Deal Registration
  • Company
    About Us
    Career
    Privacy Policy
    Terms of Use
    Contact Us
Free Trial

BRANDEFENSE

  • Home
  • Product
    How it works?
    Platform Overview
    Cyber Intelligence
    Brand & Reputation Protection
    Exposure Management
    Solutions
    Threat Intelligence Service
    Brand Protection
    Vulnerability Management
    Attack Surface Management
    Fraud Protection
    VIP Security
    Vulnerability Intelligence
    By Use Case
    Preventing Data Leakage
    Phishing Monitoring
    Account Takeover Detection
    Stolen Credit Cards
    Dark Web Monitoring
    Remediation and Takedown
    brandefense background
    Eliminate risks
    Explore the Brandefense
  • Blog
  • Resources
    Security News
    Threat Intelligence Researches
    Digital Risk Protection – FAQ
    We in the Press
  • Partners
    Channel Partners
    Deal Registration
  • Company
    About Us
    Career
    Privacy Policy
    Terms of Use
    Contact Us
A New Linux Backdoor Detected to Deployed with Log4Shell Vulnerabilities

A New Linux Backdoor Detected to Deployed with Log4Shell Vulnerabilities

BRANDEFENSE
Security News
17/03/2022

Last updated on July 28th, 2022 at 01:20 am

A new Linux backdoor that is deployed through Log4Shell security vulnerabilities and communicates with command and control servers (C&C) using the DNS tunnelling method has been detected by Netlab 360 security researchers.

In the researchers’ analyses, it has been observed that the backdoor called “B1txor20” targets systems with Linux ARM X64 CPU architecture, spreads through Apache Log4Shell vulnerabilities detected towards the end of 2021, and uses DNS tunnel technology to create a C&C communication channel. In addition to traditional backdoor functions, B1txor20 also enables Socket5 proxy, downloading Rootkit payloads from a remote server and performing data theft. Another critical factor detected related to malware is not using many advanced features. This shows that the developers of B1txor20 have developed and customized different functions according to different scenarios. The malware, which infects vulnerable systems, sends the captured sensitive information, command execution results, and other information that needs to be delivered to C&C servers as a DNS request after hiding it using specific coding techniques.

Since their disclosure, Apache Log4Shell vulnerabilities have been actively used by various threat actors such as many state-sponsored cyber threat groups and Ransomware gangs. So, a significant increase is observed in the number of malicious software that takes advantage of these vulnerabilities. In this context, it is recommended to immediately apply updates that fix vulnerabilities to systems vulnerable to Log4Shell vulnerabilities and ensure that the system/programs used are up-to-date. In addition essential to use reliable Anti-Virus/Anti-Malware solutions and block IoC findings related to malware from security solutions in use.

anti-malware Antivirus Apache arm x64 backdoor CPU cyber attack news cyber security news cybersecurity news DNS Linux Log4Shell news hackers security news vulnerability
Share on Facebook Share on Twitter
Search
Categories
APT GroupsBlogDark WebDRPSFraudRansomwareSector AnalysisSecurity NewsVIP SecurityWe in the PressWeekly Newsletter
Recent Posts
  • Perspective of the Month | APT Groups
    Perspective of the Month | APT Groups
  • BellaCiao: The New Malware From Iran’s Charming Kitten
    BellaCiao: The New Malware From Iran’s Charming Kitten
  • Security News Digest | Security Newsletter | April 27, 2023
    Security News Digest | Security Newsletter | April 27, 2023
  • Cyber Security Trends in 2023: What You Need to Know
    Cyber Security Trends in 2023: What You Need to Know
2023 Ransomware Trends Report
Let’s Dive in Ransomware Attack Trends
Report

Let’s Dive in Ransomware Attack Trends

Download Report
Follow us!

Continue Reading

Previous post

Security News – Week 11

security news – week 11
new 0-day in dompdf pdf converter library
Next post

New 0-Day in Dompdf PDF Converter Library

particle element
We know what hackers know about you
Our cyber threat intelligence and security research team is ready to help you.
Request a demo
Free Trial
Contact
Login

Follow us on

brandefense logo brandefense

Brandefense is solving SOC’s complex challenges. We are here to help Brandefense customers to protect their brands and reputations against cyber threats.

United States:

300 Delaware Ave. Ste 210 #328 Wilmington, DE 19801 / USA

Turkey:

Üniversiteler Mahallesi, 1605.Cadde, Kapı No:3/1, No: 204, 06800 Çankaya/Ankara 06800

© 2022 Brandefense. All rights reserved.

Solutions
Threat IntelligenceBrand ProtectionVulnerability ManagementFraud ProtectionVIP SecurityAttack Surface ManagementVulnerability Intelligence
Use Case
Data LeakagePhishing MonitoringAccount Takeover DetectionStolen Credit CardsDark Web MonitoringRemediation / Takedown
Partners
Channel PartnersDeal Registration
Company
AboutCareerPrivacy PolicyTerms Of UseContact
Manage Cookie Consent
To provide the best experiences, we use technologies like cookies to store and/or access device information. Consenting to these technologies will allow us to process data such as browsing behavior or unique IDs on this site. Not consenting or withdrawing consent, may adversely affect certain features and functions.
Functional Always active
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistics
The technical storage or access that is used exclusively for statistical purposes. The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.
Manage options Manage services Manage vendors Read more about these purposes
View preferences
{title} {title} {title}
Close
Search

Hit enter to search or ESC to close