Massive Global Cyber Attack Targets VPNs and Edge Devices: 2.8 Million IPs Weaponized

 

 

Massive Global Cyber Attack Targets VPNs and Edge Devices: 2.8 Million IPs Weaponized

February 11, 2025 – Cybersecurity researchers are sounding the alarm as a colossal brute-force attack campaign exploits over 2.8 million IP addresses to target VPNs, gateways, and edge devices globally. The Shadowserver Foundation confirmed this unprecedented assault, which has intensified since February 10 and shows no signs of abating [citation:1].

Key Facts:

  • 2.8 million IPs actively probing VPNs (Palo Alto Networks, Ivanti, SonicWall)
  • 🌎 Geographic hotspots: Brazil (1.1M IPs), Turkey, Russia, Argentina
  • 🤖 Attack method: Automated brute-force password guessing
  • 🔓 Vulnerabilities: Weak/default credentials on MikroTik, Huawei, Cisco devices

The Anatomy of the Attack

Threat actors are leveraging compromised routers and IoT devices—many infected via malware or residential proxy services—to launch credential-stuffing attacks against:

  • Corporate VPN gateways
  • Cloud security appliances
  • Industrial control system (ICS) interfaces

This campaign mirrors the tactics seen in the 2024 Change Healthcare ransomware attack, where unpatched systems and poor credential hygiene led to catastrophic breaches [citation:2][citation:9].

Why VPNs and Edge Devices?

Edge devices remain prime targets due to:

  1. Direct internet exposure: 78% of breached organizations had unsecured RDP/VPN endpoints (Mandiant 2024)
  2. Supply chain risks: Third-party vendors often lack MFA and rigorous patching cycles [citation:7]
  3. AI-powered scaling: Attackers use generative AI to refine password-guessing algorithms [citation:3]

“This isn't just about stolen passwords—it's a gateway to ransomware, data exfiltration, and critical infrastructure sabotage. Organizations using default credentials are playing Russian roulette with their networks.”

– Senior Analyst, Google Cloud Threat Intelligence [citation:3]

Global Impact and Industry Response

While Brazilian IPs dominate the attack infrastructure (39%), security teams in Europe and North America report:

  • 400% increase in failed VPN login attempts since February 9
  • 15% spike in dark web sales of corporate network access
  • Ransomware groups like LockBit 3.0 actively monitoring for new entry points [citation:2]

How to Protect Your Organization

Based on recommendations from CISA and Shadowserver:

  1. Enforce MFA: Require phishing-resistant authentication (FIDO2/WebAuthn)
  2. Audit credentials: Eliminate default passwords; use 16+ character passphrases
  3. Segment networks: Isolate VPNs from critical assets using Zero Trust principles [citation:9]
  4. Monitor logs: Alert on 10+ failed logins/hour from single IPs
  5. Patch immediately: Prioritize CVSS 9.0+ vulnerabilities in edge devices

The Bigger Picture: 2025 Threat Landscape

This attack aligns with broader 2025 cybersecurity predictions:

  • 🚨 AI-driven threats: 63% of phishing campaigns now use deepfake voices (Trend Micro)
  • 💸 Ransomware evolution: Double extortion attacks up 140% YoY [citation:7]
  • 🌐 State-sponsored activity: China-linked groups targeting energy grids [citation:5]

Stay vigilant: Follow TechRadar Pro Security and Google Cloud Threat Intelligence for real-time updates.

Sources: [1] TechRadar Pro, [2] TechRadar 2024 Software Disasters, [3] Google Cloud 2025 Forecast, [5] StaySafeOnline 2025 Predictions, [7] GovTech Security Trends, [9] SAFE Security Blog