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hunting-for-data-exfiltration-indicators

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Hunt for data exfiltration by analyzing Zeek and Suricata network telemetry for unusual data flows, DNS tunneling via large/frequent TXT queries, uploads to personal cloud storage, and encrypted-channel abuse, correlated against threat intel on destination domains. Use when hunting for data theft in a compromised environment, investigating unusual outbound data volumes, or determining what data was stolen during incident response.

When to use

• When hunting for data theft in compromised environments
• After detecting unusual outbound data volumes or patterns
• When investigating potential insider threat data theft
• During incident response to determine what data was stolen
• When threat intel indicates data exfiltration campaigns targeting your sector

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