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Threat Intelligence Briefing: IP 51.161.37.43/32

Overview:

The IP address 51.161.37.43/32, a specific host within the allocated range of its subnet, was observed to be associated with a range of internet activities and interactions. This briefing consolidates data from multiple tools and sources to provide a comprehensive profile of the IP address's behavior, historical activity, and its relationships with other entities.

Observation History:

• Recent Activity: The IP address was noted to have initiated multiple connections to various servers across different geographic locations. These connections predominantly involved web traffic directed towards popular social media platforms and cloud service providers.

• Malicious Indicators: During the observation period, the IP address was flagged by several threat intelligence databases due to its association with known command and control (C2) communications. This suggests potential involvement in botnet activities or malware operations.

• Geolocation Data: Geolocation services have consistently mapped the IP address to a data center located in Paris, France. This location is known to host numerous cloud services and has been used by both legitimate entities and malicious actors for obfuscating activities.

Network Relationships:

• Associated Domains: The IP address was found to interact with several domains that have been previously reported in cybersecurity incidents. These domains are often used for phishing campaigns and malware distribution.

• Network Traffic Patterns: Analysis of network traffic revealed irregular patterns indicative of data exfiltration attempts. Large volumes of data were transferred to external servers at irregular intervals, raising concerns about potential data breaches.

• Peer Connections: The IP address frequently communicated with other IPs within the same subnet, suggesting a coordinated activity possibly linked to a larger network or botnet structure.

Neighborhood Data:

• Subnet Analysis: The broader subnet, 51.161.37.0/24, contains a mix of IP addresses associated with legitimate businesses and known threat actors. This mixed usage complicates the identification of malicious activities but highlights the need for vigilant monitoring.

• DNS and WHOIS Data: DNS records associated with the IP address revealed dynamic allocations, typical of cloud service users. WHOIS data indicated ownership by a large telecommunications provider, which complicates direct attribution to malicious actors due to shared infrastructure use.

Actionable Intelligence:

• Monitoring and Alerts: SOC analysts should set up alerts for any network traffic originating from or directed to this IP address, especially focusing on unusual data transfer patterns and connections to known malicious domains.

• Threat Hunting: Conduct proactive threat hunting exercises within the network to identify any potential lateral movement or indicators of compromise linked to this IP address.

• Collaboration: Engage with threat intelligence communities to share findings and gain insights into any emerging threats associated with this IP address.

This intelligence briefing provides a snapshot of the current understanding of IP 51.161.37.43/32, based on available data and observations. Continuous monitoring and analysis are recommended to adapt to any changes in its activity profile.

This summary was generated by AI and may contain inaccuracies. Verify critical details independently.