// MITRE ATT&CK
T1597 · Search Closed Sources
🎯 Reconnaissance PRE
Adversaries may search and gather information about victims from closed (e.g., paid, private, or otherwise not freely available) sources that can be used during targeting. Information about victims may be available for purchase from reputable private sources and databases, such as paid subscriptions...
How to detect & mitigate it
Detecting Search Closed Sources starts with your SIEM/EDR telemetry. Write a detection rule with the Sigma generator, analyze suspicious logs in the log analyzer, and place the technique on your coverage with the ATT&CK matrix.
Sub-techniques (2)
Related techniques
T1592
Gather Victim Host Information T1596.003
Digital Certificates T1597.002
Purchase Technical Data T1590.005
IP Addresses T1590.002
DNS T1682
Query Public AI Services T1596.002
WHOIS T1594
Search Victim-Owned Websites
Gather Victim Host Information T1596.003
Digital Certificates T1597.002
Purchase Technical Data T1590.005
IP Addresses T1590.002
DNS T1682
Query Public AI Services T1596.002
WHOIS T1594
Search Victim-Owned Websites
Source: MITRE ATT&CK®. ATT&CK is a registered trademark of The MITRE Corporation. Content for educational purposes.