// MITRE ATT&CK
T1090.002 · External Proxy
Sub-technique of T1090 · Proxy.
Adversaries may use an external proxy to act as an intermediary for network communications to a command and control server to avoid direct connections to their infrastructure. Many tools exist that enable traffic redirection through proxies or port redirection, including [HTRAN](https://attack.mitre...
How to detect & mitigate it
Detecting External Proxy 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.
Related techniques
T1132.001
Standard Encoding T1568.002
Domain Generation Algorithms T1071.004
DNS T1071.005
Publish/Subscribe Protocols T1573.001
Symmetric Cryptography T1568.001
Fast Flux DNS T1071
Application Layer Protocol T1219
Remote Access Tools
Standard Encoding T1568.002
Domain Generation Algorithms T1071.004
DNS T1071.005
Publish/Subscribe Protocols T1573.001
Symmetric Cryptography T1568.001
Fast Flux DNS T1071
Application Layer Protocol T1219
Remote Access Tools
Source: MITRE ATT&CK®. ATT&CK is a registered trademark of The MITRE Corporation. Content for educational purposes.