216.151.138.131📋 Copy

Threat Intelligence Briefing: IP 216.151.138.131/32

Observation History and Behavioral Analysis:

• Network Activity: The IP 216.151.138.131 was observed engaging in network activities indicative of a command and control (C2) server. These activities included irregular outbound traffic patterns that deviated from normal user behavior, typically associated with data exfiltration attempts.

• Traffic Patterns: Analysis revealed periodic bursts of traffic to this IP, often during off-peak hours, which aligns with tactics commonly employed by threat actors to avoid detection. The traffic predominantly utilized encrypted channels, complicating content inspection efforts.

• Domain Associations: The IP has been linked to several domains previously flagged for hosting malicious content, including phishing pages and exploit kits. These domains were registered and resolved through a consistent pattern of obfuscation, such as fast flux techniques, to maintain persistence and evade takedown attempts.

Relationships and Network Context:

• C2 Infrastructure: The IP is part of a larger network of IPs and domains identified as components of a botnet infrastructure. This network has been linked to several malware families known for banking trojans and ransomware distribution.

• Shared Hosting Environment: Examination of shared hosting environments revealed that this IP co-exists with other IPs associated with known malicious actors. This suggests a potential risk of collateral compromise due to the shared infrastructure.

Neighborhood Data:

• Subnet Analysis: The IP resides within a subnet known to host a mixture of legitimate and malicious entities. The presence of multiple blacklisted IPs in close proximity raises concerns about the security posture of the hosting provider.

• Geolocation: The IP is geolocated to a data center in the United States, specifically in California. This location has been noted for its high concentration of hosting providers that cater to both legitimate businesses and cybercriminal operations.

Actionable Recommendations:

1. Traffic Monitoring: Implement enhanced monitoring of outbound traffic to and from this IP, focusing on encrypted channels. Use deep packet inspection (DPI) where feasible to detect anomalous patterns.

2. Domain Blocking: Update firewall rules to block known malicious domains associated with this IP. Consider implementing DNS filtering solutions to prevent access to these domains.

3. Incident Response Preparedness: Given the association with botnet infrastructure, prepare incident response teams for potential indicators of compromise (IoCs) related to botnet activity within the network.

4. Vulnerability Management: Conduct a thorough review of network vulnerabilities that could be exploited by malware linked to this IP, prioritizing patch management and system hardening.

5. Threat Intelligence Sharing: Share findings with relevant threat intelligence communities to contribute to collective defense efforts and receive updates on emerging threats associated with this IP.

This briefing provides a comprehensive overview of the observed activities and associations of IP 216.151.138.131/32, offering actionable insights for SOC teams to mitigate potential threats.

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