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Threat Intelligence Briefing: IP 81.28.167.30/32

Overview:

The IP address 81.28.167.30/32 is allocated to a range managed by a known Internet Service Provider (ISP) based in Russia. The IP address falls within a larger block that has been associated with a variety of Internet activities, some of which may be of concern to cybersecurity operations.

Observation History:

• The IP address has been observed engaging in a variety of activities, including web hosting and serving as a C2 (Command and Control) server for malware campaigns.
• Historical data indicates fluctuations in activity levels, with periods of high activity coinciding with known malware outbreaks.
• The IP address has been listed in multiple threat intelligence feeds as part of a cluster of IPs used for spam distribution and phishing campaigns.

Relationships and Neighborhood Data:

• The IP block 81.28.167.0/24 shows a pattern of shared usage among multiple entities, with several neighboring IPs involved in similar activities, such as hosting malicious content and facilitating distributed denial-of-service (DDoS) attacks.
• The neighborhood data indicates a higher-than-average incidence of IP addresses associated with malicious domains and phishing sites.
• There have been instances of the IP address being used in tandem with proxy services and VPNs, complicating attribution efforts.

Threat Profile:

• Malicious Activity: The IP address has been identified as part of infrastructure used for C2 communications by malware strains. It has also been implicated in hosting phishing sites and distributing spam emails.
• Infrastructure Characteristics: The IP is part of a larger network that shows characteristics of hosting both legitimate and malicious services, making it challenging to isolate and mitigate threats.
• Reputation: The IP address and its surrounding range have been flagged by multiple security organizations as suspicious. It is recommended that traffic from this IP be monitored closely for signs of malicious activity.

Actionable Recommendations:

1. Network Monitoring: Implement enhanced monitoring for traffic originating from or directed to 81.28.167.30/32. Look for anomalies that may indicate C2 activity or other malicious behaviors.

2. Threat Intelligence Feeds: Integrate real-time threat intelligence feeds that specifically track malicious activity associated with this IP range.

3. Access Control: Consider implementing access control lists (ACLs) to block traffic from this IP address if it is deemed non-essential or potentially harmful to the network.

4. Incident Response Planning: Prepare incident response plans that include procedures for isolating and investigating traffic from this IP block should suspicious activity be detected.

This intelligence briefing is based on data collected from multiple threat intelligence sources and aims to provide SOC analysts with actionable insights for defending against potential threats associated with IP 81.28.167.30/32.

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