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

North Korean Hackers Deploy HappyDoor

June 27, 2024
Reading Time: 2 mins read
in Alerts
North Korean Hackers Deploy HappyDoor

North Korean hackers, identified as the Kimsuky group, continue to utilize the ‘HappyDoor’ malware in sophisticated email-based attacks, according to recent findings by cybersecurity researchers at ASEC. Originally observed in 2021 and updated periodically up to 2024, HappyDoor employs deceptive tactics like obfuscated JScript and executable droppers in email attachments to infiltrate systems.

The malware operates in three distinct stages: initial installation, setup completion, and execution of malicious activities. Key functionalities include screen capture, keylogging, file leakage, and encryption of stolen data using RSA algorithms before transmission to command-and-control servers via HTTP protocols.

HappyDoor’s evolution includes version updates and modifications to its execution arguments, enhancing its obfuscation capabilities and operational efficiency. Associated with the Kimsuky group linked to North Korea, this malware facilitates remote access and data theft through multi-threaded processes and registry-based configurations.

To mitigate the risk posed by HappyDoor and similar threats, cybersecurity experts advise users to exercise caution with email attachments, update software regularly, and implement robust security measures to detect and prevent sophisticated malware attacks effectively.

Reference:

  • North Korean HappyDoor Malware Targets Email Users
Tags: ASECCyber AlertsCyber Alerts 2024Cyber RiskCyber threatHappyDoorJune 2024kimsukyMalwareNorth Korea
ADVERTISEMENT

Related Posts

Toys R Us Canada Data Breach Alert

Fake LastPass Death Claims Breach Vaults

October 28, 2025
Toys R Us Canada Data Breach Alert

ChatGPT Atlas Browser Fooled By Fake Url

October 28, 2025
Toys R Us Canada Data Breach Alert

Chrome Zero Day Delivers LeetAgent

October 28, 2025
Qilin Ransomware Uses Hybrid Attack

Qilin Ransomware Uses Hybrid Attack

October 28, 2025
Qilin Ransomware Uses Hybrid Attack

Hackers Exploit Outdated WordPress Plugins

October 28, 2025
Smishing Triad Tied To Global Phishing

Smishing Triad Tied To Global Phishing

October 28, 2025

Latest Alerts

Fake LastPass Death Claims Breach Vaults

ChatGPT Atlas Browser Fooled By Fake Url

Chrome Zero Day Delivers LeetAgent

Smishing Triad Tied To Global Phishing

Qilin Ransomware Uses Hybrid Attack

Hackers Exploit Outdated WordPress Plugins

Subscribe to our newsletter

    Latest Incidents

    Google Contractor Steals Play Files

    Vibra Hospital Data Breach Probe

    Hackers Target Swedish Power Grid

    Ex-L3Harris Cyber Boss Charged With Espionage

    Safepay Hits Xortec Video Surveillance Firm

    Hackers Breach Verstappen Data

    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