Friday, June 14, 2024

Sophisticated Cryptocurrency Mining RETADUP Worm Goes Polymorphic to Evade Detection by Security Scanners

A new variant of cryptocurrency mining RETADUP worm found shifted to AutoHotKey version an open source windows programming language that used for creating hotkeys.

It allows users to automate repetitive tasks such as keyboard shortcuts, macros, and automation software.

This new variant of RETADUP Worm detected by Trend Micro, with their further analysis based on the C&C servers it matches to other samples and threat actors behind RETADUP had a history of cybercriminal cryptocurrency mining malware attacks.

New RETADUP Variant

RETADUP AutoHotKey resembles in a number of way’s to it previous AutoIt variant in techniques such as propagation, evasion&detection, and in the deployment of malicious Monero miner.

Researchers said “AutoHotKey is most likely because of its novelty as a scripting language. This entails the lack of known or prevalent tools that can actively detect and analyze malware written in AutoHotKey”.

RETADUP
RETADUP Versions
But still few of the new variant components using AutoIt, with the new version they used some form of obfuscation and polymorphism to help evade detection and the previous AutoIt-based variants don’t have this feature.

Attackers used AutoHotKey interpreter in propagation to run the malicious script, so if the system doesn’t have autokey it will be dropped and installed automatically. TrendMicro Published a detailed analysis report.

Similar to the previous versions AutoHotKey variant is also a botnet that downloads additional components from the command-and-control servers. When compared to the previous version it has slight changes with the networking part.

As like the previous versions of RETADUP it has AutoIt-compiled scripts that contain the Monero Miner XMRIG embedded binary file that injects directly into the memory of the following process.

Notepad.exe
Explorer.exe
SYSWOW64\wuapp.exe
SYSWOW64\svchost.exe
System32\wuapp.exe
System32\svchost.exe

Starting from 2018 cyber threat landscape shifted from Ransomware to Cryptocurrency mining attacks, attackers targeted a variety of web portals, Android devices, and variety of servers. Even the Ransomware and malware authors started to make their code by adding cryptocurrency miners because it becomes their strategy to maximize their profit.

Website

Latest articles

Sleepy Pickle Exploit Let Attackers Exploit ML Models And Attack End-Users

Hackers are targeting, attacking, and exploiting ML models. They want to hack into these...

SolarWinds Serv-U Vulnerability Let Attackers Access sensitive files

SolarWinds released a security advisory for addressing a Directory Traversal vulnerability which allows a...

Smishing Triad Hackers Attacking Online Banking, E-Commerce AND Payment Systems Customers

Hackers often attack online banking platforms, e-commerce portals, and payment systems for illicit purposes.Resecurity...

Threat Actor Claiming Leak Of 5 Million Ecuador’s Citizen Database

A threat actor has claimed responsibility for leaking the personal data of 5 million...

Ascension Hack Caused By an Employee Who Downloaded a Malicious File

Ascension, a leading healthcare provider, has made significant strides in its investigation and recovery...

AWS Announced Malware Detection Tool For S3 Buckets

Amazon Web Services (AWS) has announced the general availability of Amazon GuardDuty Malware Protection...

Hackers Exploiting MS Office Editor Vulnerability to Deploy Keylogger

Researchers have identified a sophisticated cyberattack orchestrated by the notorious Kimsuky threat group.The...
Guru baran
Guru baranhttps://gbhackers.com
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.

Free Webinar

API Vulnerability Scanning

71% of the internet traffic comes from APIs so APIs have become soft targets for hackers.Securing APIs is a simple workflow provided you find API specific vulnerabilities and protect them.In the upcoming webinar, join Vivek Gopalan, VP of Products at Indusface as he takes you through the fundamentals of API vulnerability scanning..
Key takeaways include:

  • Scan API endpoints for OWASP API Top 10 vulnerabilities
  • Perform API penetration testing for business logic vulnerabilities
  • Prioritize the most critical vulnerabilities with AcuRisQ
  • Workflow automation for this entire process

Related Articles