Boramae Ransomware: The Stealthy Threat Targeting Global Networks

  Category:  RANSOMWARE | 29th July 2025 | Author:  TEAM CSI

Learn Everything About Boramae Ransomware—how It Infects Systems, Encrypts Data, And How To Protect Your Business From This Rising Cyber Threat In 2025.

What Is Boramae Ransomware?

Boramae Ransomware Is A new And Highly Evasive Malware Variant That Has Recently Emerged In Global Cybercrime Reports. Named After The Korean Word “Boramae” (meaning “falcon”), This Ransomware Strikes Fast, Silently Infiltrates Networks, And encrypts Valuable Data, Leaving Organizations Locked Out Of Their Systems And Demanding Cryptocurrency For Recovery.

What Sets Boramae Apart Is Its focus On Disabling Cybersecurity Tools And evading Detection Using Fileless Techniques And Obfuscation Tactics. It’s Part Of A Growing Trend Of Ransomware Strains That Avoid Triggering Antivirus Software Until The Damage Is Done.

How Does Boramae Ransomware Infect Systems?

Boramae Ransomware Typically Enters A System Through:

• Phishing Emails With Malicious Attachments Or Links

• Drive-by Downloads From Compromised Websites

• Exploited Vulnerabilities In Outdated Software

• Remote Desktop Protocol (RDP) Brute-force Attacks

Once Inside, It:

1. Kills System Defenses Like Antivirus, Firewalls, And Security Logging.

2. Runs In Memory To Avoid File Detection.

3. Encrypts Files Using Strong Algorithms (AES-256/RSA-2048).

4. Appends A Unique Extension To Locked Files (e.g., .boramae2025).

5. Drops A Ransom Note (e.g., Boramae_ReadMe.txt) Demanding Bitcoin Or Monero Payment.

6. Sometimes Exfiltrates Sensitive Data, Threatening To Leak It Publicly In A Double-extortion Scheme.

Who Is Targeted By Boramae Ransomware?

Though Still New, Boramae Has Been Observed Targeting:

• Healthcare Providers

• Law Firms And Financial Organizations

• Government Agencies

• Small-to-medium Enterprises (SMEs)

Its Fileless Behavior And Stealthy Lateral Movement Make It Especially Dangerous For networks With Limited Cybersecurity Monitoring.

Indicators Of A Boramae Ransomware Attack

Watch Out For The Following Signs:

• Unusual System Slowdowns Or Crash Loops

• Files Renamed With Unfamiliar Extensions

• Ransom Note Text Files In Every Folder

• Inability To Open Common Files (Word, Excel, PDFs, Etc.)

• Disabled Or Missing Antivirus Services

If These Symptoms Appear, act Fast To Contain The Breach.

How To Prevent A Boramae Ransomware Infection

1. Backup Data Securely

Use offline And Cloud-based Backups That Are Disconnected From Your Main System. Apply The 3-2-1 Backup Rule.

2. Train Employees

Awareness Is Key. Educate Teams To recognize Phishing Attempts And Unsafe Links.

3. Patch Everything

Update Your operating Systems, Applications, Firewalls, And Firmware Regularly.

4. Deploy EDR/XDR Tools

Use advanced Endpoint Protection With Threat Hunting And Real-time Behavioral Monitoring.

5. Limit Access

Restrict Admin Rights And Use role-based Access Controls (RBAC) To Minimize Damage If Compromised.

What To Do If You're Infected By Boramae Ransomware

1. Disconnect The Infected Machine From The Internet And Local Network.

2. Do Not Pay The Ransom. There’s No Guarantee Of Decryption Or Data Safety.

3. Report The Incident To Your Country’s CERT (Computer Emergency Response Team).

4. Engage A Cybersecurity Expert To Perform Forensic Analysis And Malware Removal.

5. Restore From Clean Backups After Ensuring All Ransomware Traces Are Eliminated.

6. Audit The Breach And Close Any Exploited Security Gaps.

Conclusion: Stay Ahead Of Boramae And Similar Ransomware

Boramae Ransomware Is A Clear Reminder Of The Evolving Complexity Of Modern Cyber Threats. Its stealth-first Approach And Destructive Capabilities Demand That Organizations Move Beyond Traditional Antivirus Software And Adopt zero-trust Architectures, Multi-layered Defense, And Continuous Monitoring.

Malware Removal Guide For PC

Malware Removal Guide For Web Browsers

Prevent Future Malware

Summary - Malware Removal Guide

Guide For VPN Uses

Malware Removal Guide – PC And Web Browser

PART 1: Remove Malware From Your PC (Windows)

Step 1: Boot Into Safe Mode

• Restart Your PC And Press F8 (or Shift + F8 For Some Systems) Before Windows Loads.

• Choose Safe Mode With Networking.

Safe Mode Prevents Most Malware From Loading.

Step 2: Uninstall Suspicious Programs

1. Press Win + R, Type appwiz.cpl, And Press Enter.

2. Sort By Install Date And Uninstall Unknown Or Recently Added Programs.

Step 3: Run A Malware Scan

Use A Trusted Anti-malware Tool:

Malwarebytes – https://www.malwarebytes.com

Screenshot Of Malwarebytes - Visit Links

Microsoft Defender – Built Into Windows 10/11

HitmanPro, ESET Online Scanner, Or Kaspersky Virus Removal Tool

ZoneAlarm Pro Antivirus + Firewall NextGen

VIPRE Antivirus - US And Others Countries, | India

VIPRE Antivirus - Mac

F-Secure Total - Global

Run A Full Scan And Delete/quarantine Detected Threats.

Step 4: Delete Temporary Files

1. Press Win + R, Type temp → Delete All Files.

2. Press Win + R, Type %temp% → Delete All Files.

3. Use Disk Cleanup: cleanmgr In The Run Dialog.

Step 5: Reset Hosts File

1. Go To: C:\Windows\System32\drivers\etc

2. Open hosts File With Notepad.

3. Replace With Default Content:

Step 6: Check Startup Programs

1. Press Ctrl + Shift + Esc → Open Task Manager

2. Go To Startup Tab

3. Disable Any Suspicious Entries.

Step 7: Reset Network Settings

1. Open Command Prompt As Administrator.

2. Run These Commands:

netsh Winsock Reset

netsh Int Ip Reset

ipconfig /flushdns

PART 2: Remove Malware From Web Browsers

? Common Signs Of Malware In Browser:

• Unwanted Homepage Or Search Engine

• Pop-ups Or Redirects

• Unknown Extensions Installed

Step 1: Remove Suspicious Extensions

For Chrome:

• Go To: chrome://extensions/

• Remove Anything Unfamiliar

For Firefox:

• Go To: about:addons → Extensions

• Remove Suspicious Add-ons

For Edge:

• Go To: edge://extensions/

• Uninstall Unknown Add-ons

Step 2: Reset Browser Settings

Chrome:

• Go To chrome://settings/reset → "Restore Settings To Their Original Defaults"

Firefox:

• Go To about:support → "Refresh Firefox"

Edge:

• Go To edge://settings/resetProfileSettings → "Reset Settings"

Step 3: Clear Cache And Cookies

All Browsers:

• Use Ctrl + Shift + Del → Select All Time

• Clear Cookies, Cached Files, And Site Data

Step 4: Check Search Engine & Homepage Settings

Make Sure They Are Not Hijacked.

• Chrome: chrome://settings/search

• Firefox: about:preferences#search

• Edge: edge://settings/search

Step 5: Use Browser Cleanup Tools (Optional)

• Chrome: chrome://settings/cleanup

• Use Malwarebytes Browser Guard For Real-time Browser Protection.

FINAL TIPS: Prevent Future Malware

• Always Download Software From Trusted Sources.

• Keep Windows, Browsers, And Antivirus Updated.

• Avoid Clicking Suspicious Links Or Ads.

• Use ad Blockers And reputable Antivirus Software.

• Backup Your Files Regularly.

Short Summary: Malware Removal Guide (PC & Web Browser)

To Remove Malware From Your Windows PC, Start By Booting Into Safe Mode, Uninstalling Suspicious Programs, And Scanning With Trusted Anti-malware Tools Like Malwarebytes. Clear Temporary Files, Reset Your Network Settings, And Check Startup Apps For Anything Unusual.

For web Browsers, Remove Unwanted Extensions, Reset Browser Settings, Clear Cache And Cookies, And Ensure Your Homepage And Search Engine Haven’t Been Hijacked. Use Cleanup Tools Like Chrome Cleanup Or Browser Guard For Added Protection.

?? Prevention Tips: Keep Software Updated, Avoid Suspicious Downloads, And Use Antivirus Protection Plus Browser Ad Blockers. Regular Backups Are Essential.

VPN - How To Use IT

1. Choose A Trusted VPN Provider

• Why It Matters: Not All VPNs Offer Malware Protection.

• What To Look For: Providers With built-in Malware/ad/tracker Blockers (e.g., NordVPN’s Threat Protection, ProtonVPN’s NetShield).

• Nord VPN
• Hide.me VPN

2. Enable Kill Switch

• Purpose: Prevents Data Leaks If Your VPN Connection Drops.

• Benefit: Ensures Your Real IP And Browsing Activity Aren’t Exposed To Malware-distributing Websites.

3. Use VPN With DNS Leak Protection

• Why It Matters: DNS Leaks Can Expose Your Online Activity To Attackers.

• Solution: Enable DNS Leak Protection In Your VPN Settings Or Use A Secure DNS Like Cloudflare (1.1.1.1).

4. Avoid Free VPNs

• Risk: Free VPNs Often Contain Malware, Sell User Data, Or Lack Security Features.

• Better Option: Use Reputable Paid VPNs That Offer security Audits And Transparent Privacy Policies.

5. Use VPN With Anti-Phishing Tools

• Some VPNs Block Known Phishing And Malicious Sites.

• Example: Surfshark’s CleanWeb, CyberGhost’s Content Blocker.

6. Keep Your VPN App Updated

• Reason: Security Patches Fix Known Vulnerabilities.

• Tip: Enable Auto-updates Or Check For Updates Weekly.

. Use VPN On All Devices

• Scope: Malware Can Enter Through Phones, Tablets, Or IoT Devices.

• Solution: Install VPN Apps On Every Internet-connected Device.

8. Don’t Rely On VPN Alone

• Fact: VPNs Do Not Remove Or Detect Malware On Your System.

• Complement It With:

  • Antivirus Software

  • Firewall

  • Browser Extensions For Script Blocking

9. Avoid Clicking Unknown Links While VPN Is On

• VPN Encrypts Traffic But Can’t Stop Malware From Executing If You Download Infected Files.

10. Use VPN With Split Tunneling Cautiously

• Split Tunneling Allows Certain Apps/sites To Bypass VPN.

• Tip: Never Exclude Browsers, Email Clients, Or Download Managers From VPN Tunneling.

Short Note - VPN Uses

A VPN (Virtual Private Network) Enhances Your Online Privacy By Encrypting Your Internet Traffic And Masking Your IP Address. It Protects Your Data On Public Wi-Fi, Hides Browsing Activity From Hackers And ISPs, And Helps Bypass Geo-restrictions. VPNs Also Add A Layer Of Defense Against Malware By Blocking Malicious Websites And Trackers When Using Advanced Features. However, A VPN Does Not Remove Existing Malware Or Act As Antivirus Software. For Full Protection, Combine VPN Use With Antivirus Tools, Regular Software Updates, And Cautious Browsing Habits. Always Choose A Reputable VPN Provider With Strong Security And Privacy Policies.