Menu

  • Alerts
  • Incidents
  • News
  • APTs
  • Cyber Decoded
  • Cyber Hygiene
  • Cyber Review
  • Cyber Tips
  • Definitions
  • Malware
  • Threat Actors
  • Tutorials

Useful Tools

  • Password generator
  • Report an incident
  • Report to authorities
No Result
View All Result
CTF Hack Havoc
CyberMaterial
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
Hall of Hacks
  • Education
    • Cyber Decoded
    • Definitions
  • Information
    • Alerts
    • Incidents
    • News
  • Insights
    • Cyber Hygiene
    • Cyber Review
    • Tips
    • Tutorials
  • Support
    • Contact Us
    • Report an incident
  • About
    • About Us
    • Advertise with us
Get Help
No Result
View All Result
Hall of Hacks
CyberMaterial
No Result
View All Result
Home Alerts

Big Head Ransomware: Malvertising Threat

July 12, 2023
Reading Time: 2 mins read
in Alerts
Big Head Ransomware: Malvertising Threat

 

A new strain of ransomware called Big Head is being distributed through a malvertising campaign, disguising itself as fake Microsoft Windows updates and Word installers.

Fortinet FortiGuard Labs discovered multiple variants of this ransomware designed to encrypt victims’ files and demand a cryptocurrency payment for their release. The malware has been observed displaying a fake Windows Update interface to deceive victims into thinking it’s a legitimate software update process.

It has also been found to delete backups, terminate processes, and incorporate various techniques to evade detection, such as disabling the Task Manager and aborting if the machine’s language matches certain languages.

Trend Micro conducted a detailed analysis of the .NET-based ransomware, uncovering its ability to deploy three encrypted binaries: 1.exe for propagation, archive.exe for communication over Telegram, and Xarch.exe for file encryption and the display of fake Windows updates.

The security company also detected additional variants of Big Head that exhibited both ransomware and stealer behaviors, leveraging tools like WorldWind Stealer to harvest sensitive information from victims’ systems. Another variant incorporated a file infector called Neshta to insert malicious code into executables.

Although the identity of the threat actor behind Big Head remains unknown, Trend Micro identified a YouTube channel with the name “aplikasi premium cuma cuma,” hinting at a likely Indonesian origin.

Given the malware’s diverse functionalities and its potential to cause significant harm, security teams are advised to remain prepared. Defending against Big Head is challenging due to its multifaceted nature, as each attack vector requires separate attention.

Vigilance and robust security measures are crucial to protect systems from this evolving ransomware threat.

Reference:
  • Tailing Big Head Ransomware’s Variants, Tactics, and Impact

Tags: CryptocurrencyCyber AlertCyber Alerts 2023CyberattackCybersecurityFortinetJuly 2023MicrosoftRansomwareVulnerabilitiesWindows
ADVERTISEMENT

Related Posts

Infostealer Hidden in Steam Game

Sophos, SonicWall Patch Critical RCE Bugs

July 25, 2025
Infostealer Hidden in Steam Game

CastleLoader Uses Clickfix on Windows

July 25, 2025
Infostealer Hidden in Steam Game

Koske Malware Hides in Panda Images

July 25, 2025
Interlock Ransomware Threat Alert

Interlock Ransomware Threat Alert

July 24, 2025
Interlock Ransomware Threat Alert

Backdoor Found in WP Plugins

July 24, 2025
Interlock Ransomware Threat Alert

GitLab Patches Key Vulnerabilities

July 24, 2025

Latest Alerts

CastleLoader Uses Clickfix on Windows

Sophos, SonicWall Patch Critical RCE Bugs

Koske Malware Hides in Panda Images

Interlock Ransomware Threat Alert

GitLab Patches Key Vulnerabilities

Backdoor Found in WP Plugins

Subscribe to our newsletter

    Latest Incidents

    Hackers Target Amazon’s AI Code Bot

    APTs Use Fake Dalai Lama Apps to Spy

    Infostealer Hidden in Steam Game

    Data Breach Affects 340K Jobseekers

    Hackers Use Ransomware on SharePoint Servers

    Beluga Vodka Ransomware Attack Reported

    CyberMaterial Logo
    • About Us
    • Contact Us
    • Jobs
    • Legal and Privacy Policy
    • Site Map

    © 2025 | CyberMaterial | All rights reserved

    Welcome Back!

    Login to your account below

    Forgotten Password?

    Retrieve your password

    Please enter your username or email address to reset your password.

    Log In

    Add New Playlist

    No Result
    View All Result
    • Alerts
    • Incidents
    • News
    • Cyber Decoded
    • Cyber Hygiene
    • Cyber Review
    • Definitions
    • Malware
    • Cyber Tips
    • Tutorials
    • Advanced Persistent Threats
    • Threat Actors
    • Report an incident
    • Password Generator
    • About Us
    • Contact Us
    • Advertise with us

    Copyright © 2025 CyberMaterial