Saturday, May 24, 2025
HomeMalwareFileless Cryptocurrency Miner that affects Windows Machine Through WMI and EternalBlue

Fileless Cryptocurrency Miner that affects Windows Machine Through WMI and EternalBlue

Published on

SIEM as a Service

Follow Us on Google News

Nowadays Hackers Distributing Advanced Fileless Malware with Evasion capabilities which are very Difficult to Detect. Security experts from Trend Micro Identified a new crypto miner which uses Fileless malware Techniques.

It uses Windows Management Instrumentation for fileless persistence and uses scrcons.exe to execute its scripts. In order to enter into the system, it uses EternalBlue vulnerability – MS17-010.This combination makes malware more powerful.

Infection Chain of Fileless Malware

The infection flow of this cryptocurrency miner malware has many stages. The infection flow starts with MS17-010; the vulnerability is employed to drop and run a backdoor on the system (BKDR_FORSHARE.A), that installs numerous WMI scripts.

- Advertisement - Google News
Fileless Malware

These scripts then connect with its C&C servers to urge directions and transfer the cryptocurrency miner malware besides its elements. Complete analysis report published by TrendMicro.

Once the javascript executed it connects with Multiple layers of C&C server, first stage hxxp://wmi[.]mykings[.]top:8888/test[.]html has instruction to download Miner also it has the address of other stages.

Fileless Malware
Fileless Malware

These are the following scripts used in triggering the malicious WMI script when the required conditions meet.

ActiveScriptEventConsumer is the persistence payload
__EventFilter class trigger the Event
__IntervalTimerInstruction Exposes Time Interval between Events
__AbsoluteTimerInstruction Event generated on specific time and date
__FilterToConsumerBinding Required for class registration

EternalBlue Malware Developed by National Security Agency (NSA) exploiting Windows based Server Message Block (SMBv1) and to be believed the tool has released by Shadow Brokers hackers Group in April 2017 and it has been used for Wannacry Cyber Attack.

Not all machines need the WMI service. If a machine doesn’t want access to WMI, disable it to eliminate the chance. Microsoft provides a tool which will trace WMI activity. SMBv1 also can be disabled to scale back the chance to users.TrendMicro recommended.

Common Defence’s to stay safe

  • Don’t open the attachments that you are not expecting.
  • Patch or Update your software.
  • Use a reputable security suite.
  • Download applications from Reputed sites.
  • Stay strict with CIA Cycle.
Gurubaran
Gurubaran
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.

Latest articles

Zero-Trust Policy Bypass Enables Exploitation of Vulnerabilities and Manipulation of NHI Secrets

A new project has exposed a critical attack vector that exploits protocol vulnerabilities to...

Threat Actor Sells Burger King Backup System RCE Vulnerability for $4,000

A threat actor known as #LongNight has reportedly put up for sale remote code...

Chinese Nexus Hackers Exploit Ivanti Endpoint Manager Mobile Vulnerability

Ivanti disclosed two critical vulnerabilities, identified as CVE-2025-4427 and CVE-2025-4428, affecting Ivanti Endpoint Manager...

Hackers Target macOS Users with Fake Ledger Apps to Deploy Malware

Hackers are increasingly targeting macOS users with malicious clones of Ledger Live, the popular...

Resilience at Scale

Why Application Security is Non-Negotiable

The resilience of your digital infrastructure directly impacts your ability to scale. And yet, application security remains a critical weak link for most organizations.

Application Security is no longer just a defensive play—it’s the cornerstone of cyber resilience and sustainable growth. In this webinar, Karthik Krishnamoorthy (CTO of Indusface) and Phani Deepak Akella (VP of Marketing – Indusface), will share how AI-powered application security can help organizations build resilience by

Discussion points


Protecting at internet scale using AI and behavioral-based DDoS & bot mitigation.
Autonomously discovering external assets and remediating vulnerabilities within 72 hours, enabling secure, confident scaling.
Ensuring 100% application availability through platforms architected for failure resilience.
Eliminating silos with real-time correlation between attack surface and active threats for rapid, accurate mitigation

More like this

Hackers Target macOS Users with Fake Ledger Apps to Deploy Malware

Hackers are increasingly targeting macOS users with malicious clones of Ledger Live, the popular...

GenAI Assistant DIANNA Uncovers New Obfuscated Malware

Deep Instinct’s GenAI-powered assistant, DIANNA, has identified a sophisticated new malware strain dubbed BypassERWDirectSyscallShellcodeLoader. This...

New Formjacking Malware Targets E-Commerce Sites to Steal Credit Card Data

A disturbing new formjacking malware has emerged, specifically targeting WooCommerce-based e-commerce sites to steal...