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ICS ATT&CK

Standard Application Layer Protocol

T0869 · command-and-control

Adversaries may establish command and control capabilities over commonly used application layer protocols such as HTTP(S), OPC, RDP, telnet, DNP3, and modbus. These protocols may be used to disguise adversary actions as benign network traffic. Standard protocols may be seen on their associated port or in some cases over a non-standard port.

Adversaries may use these protocols to reach out of the network for command and control, or in some cases to other infected devices within the network.

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Actors Using This

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russiaXENOTIME / TRITON / TRISIS
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Detection Coverage

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Coverage across standard detection surfaces. Rows marked none have no rule of that type mapped. Some are real blind spots worth closing; others are simply not applicable to this technique (e.g. YARA matches malware files, not network behaviour).
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