Pandemic of Outgoing DDoS Traffic Detected Across Indian Networks

FastNetMon

March 25, 2026

PRESS RELEASE | London, UK | 25 March 2026

FastNetMon, a leading provider of DDoS detection and network traffic visibility solutions, has observed a significant surge in outgoing DDoS activity originating from India. Over the past 72 hours, multiple ISPs have reported abnormal outbound UDP traffic patterns affecting hundreds of networks.

FastNetMon’s analysis shows abnormally large UDP floods targeting a small set of external IPs, including traffic to ports 80, 443, and even port 0. The patterns are strikingly consistent:

  • Upload traffic spikes exceeding download volumes
  • Bursts of traffic followed by pauses, repeating across multiple users simultaneously
  • Affected subscribers scattered across different regions of India
  • Highly concentrated destination IPs, suggesting coordinated activity

“These indicators strongly suggest a large-scale compromise of routers, CPEs, IoT devices, or other edge equipment,” said Pavel Odintsov, FastNetMon Founder. “The simultaneity across networks points to either a botnet awakening or a rapidly spreading exploit.”

Local broadband network gateways and NAT boxes are reportedly under severe stress. FastNetMon is in contact with a reliable source at a major local BNG vendor, which confirms that hundreds of networks are affected.

FastNetMon’s outgoing DDoS detection capabilities allow network operators to spot these abnormal patterns quickly by analysing network traffic telemetry. This enables faster response times and reduces the risk of local network infrastructure failure.

FastNetMon urges ISPs and broadband operators to check for unusual outbound UDP spikes, traffic to port 0, and similar destination patterns. Early, automated detection is critical to mitigating the impact of DDoS attacks.

About FastNetMon

FastNetMon is a leading network security solution providing advanced DDoS detection and mitigation. By leveraging real-time network analytics, FastNetMon enables organisations to quickly identify and respond to abnormal traffic patterns, helping protect infrastructure from evolving cyber threats.

Media Contact:

Outi Maria Pietilanaho

Head of Marketing, FastNetMon

Email: media@fastnetmon.com

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