Top 100 Malicious IPs in 2025

Understanding Malicious IPs

Malicious IP addresses are those from which harmful activities originate, such as distributed denial-of-service (DDoS) attacks, phishing attempts, malware distribution, and unauthorized hacking efforts. These IPs can belong to compromised devices, botnets, or state-sponsored actors aiming to disrupt services, steal data, or conduct espionage. In 2025, with the rise of IoT devices and advanced AI-driven threats, identifying and blocking these IPs is crucial for maintaining online security.

Why Track Malicious IPs?

• Prevent Attacks: By knowing common malicious sources, you can configure firewalls and intrusion detection systems to block them proactively.
• Enhance Privacy: Avoid interactions with known bad actors to protect personal and business data.
• Improve Network Performance: Blocking spam and DDoS sources reduces unnecessary traffic and downtime.
• Compliance and Reporting: Organizations can use this data for regulatory compliance and incident reporting.

The IPWhois team conducts thorough investigations, analyzing global threat intelligence feeds, honeypot data, and attack logs to compile this list. While no list is exhaustive, this top 100 highlights the most prevalent threats observed in 2025.

Common Types of Attacks from These IPs

DDoS attacks overwhelm servers with traffic, causing outages. Phishing involves deceptive emails or sites to steal credentials. Malware distribution spreads viruses via downloads or emails. Hacking attempts include brute-force logins or exploiting vulnerabilities. In 2025, we've seen an increase in AI-enhanced attacks, where bots learn from defenses to evade detection.

Countries with high concentrations of malicious IPs often have lax cybersecurity regulations or are hubs for cybercriminal groups. However, any IP can be compromised, regardless of origin. Always verify IPs using tools like our IP lookup service.

How to Protect Against Malicious IPs

• Use VPNs to mask your IP and encrypt traffic.
• Implement IP blacklisting in your security software.
• Monitor network logs for suspicious activity.
• Keep software updated to patch vulnerabilities.
• Educate users about phishing and safe browsing.

In the evolving landscape of 2025, quantum threats and 6G networks introduce new challenges. Malicious actors are adapting, using decentralized botnets and zero-trust exploits. Staying informed with lists like this is a key defense strategy.

Trends in Malicious Activity for 2025

This year, we've noted a surge in attacks targeting cloud infrastructure, with IPs from various regions coordinating large-scale botnets. Ransomware has evolved, demanding payments in obscure cryptocurrencies. State actors continue espionage, focusing on critical infrastructure like power grids and financial systems.

IoT devices remain a weak link, with millions compromised for DDoS amplification. Mobile threats are rising, with IPs distributing fake apps via sideloading. Ad fraud and clickjacking drain resources, while supply chain attacks compromise trusted software.

The IPWhois team recommends regular scans and collaboration with global threat sharing platforms. By understanding these IPs, you can better safeguard your digital assets.

Case Studies of Notable Attacks

In early 2025, a massive DDoS hit major e-commerce sites, originating from a botnet controlled by several listed IPs. Another incident involved phishing campaigns stealing billions in crypto, traced to organized groups. Hacking collectives used these IPs for data breaches affecting millions.

Espionage operations targeted governments, using advanced persistent threats (APTs) from these sources. Industrial sabotage disrupted manufacturing, highlighting the need for robust IP monitoring.

As cyber threats grow, tools like this list empower users to stay ahead. Check back regularly for updates from the IPWhois team.

Advanced Mitigation Techniques

Beyond basic blocking, consider AI-based anomaly detection to identify new malicious patterns. Use geofencing to restrict access from high-risk regions. Implement multi-factor authentication to thwart credential stuffing.

For enterprises, deploy honeypots to lure and study attackers. Collaborate with ISPs to report abusive IPs. In 2025, zero-trust architectures are essential, assuming no IP is safe by default.

The future of cybersecurity lies in proactive intelligence. This top 100 list is a starting point for building resilient defenses against the most popular threat sources.