Threats Tagged 'infrastructure discovery'

Researchers at Infoblox have developed an advanced technique leveraging graph theory and SSL certificates to uncover threat actor operational relationships. The approach analyzes Certificate Transparency logs, using the Subject Alternative Name field in certificates to identify domains under common control. By modeling domains as nodes and certificate relationships as edges, the system reveals comprehensive threat infrastructures. This method enables discovery of new malicious domains, consolidation of threat actor identities, and early detection of emerging threats. The system processes millions of certificates daily, providing actionable intelligence on threat actor operations across various types of cybercriminal activities.

MediumCampaignUnited StatesUnited KingdomGermany+8#graph theory#certificate transparency#infrastructure discovery

This analysis explores the infrastructure of APT36, also known as Transparent Tribe, using passive DNS and host response history. Starting with indicators from a CyberXTron report on a targeted phishing attack against Indian Government and Defense, the investigation expands through DNS history, IP pivoting, and host response analysis. Key findings include shared name server patterns, non-Cloudflare IP addresses, and connections to previously unreported domains. The research identifies potential new infrastructure using ETag pivoting, revealing domains with similar subdomain conventions to known Transparent Tribe assets. The methodology demonstrates the power of comprehensive DNS data and host response history in uncovering hidden connections and potential threat infrastructure.

MediumCampaignUnited KingdomGermanyFrance+5#defense#passive dns#indian government