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T1048.002: T1048.002

View on MITRE ATT&CK The MITRE Corporation · Published 16/12/2025 19:38 · Modified 18/06/2026 16:32

Essential information

MITRE technique ID
T1048.002
Confidence
100/100
Revoked
No
Published
16/12/2025 19:38
Modified
18/06/2026 16:32
Author / Source
The MITRE Corporation

Aliases

Exfiltration Over Asymmetric Encrypted Non-C2 Protocol

Platforms

windows macos linux ESXi

Description

Adversaries may steal data by exfiltrating it over an asymmetrically encrypted network protocol other than that of the existing command and control channel. The data may also be sent to an alternate network location from the main command and control server. Asymmetric encryption algorithms are those that use different keys on each end of the channel. Also known as public-key cryptography, this requires pairs of cryptographic keys that can encrypt/decrypt data from the corresponding key. Each end of the communication channels requires a private key (only in the procession of that entity) and the public key of the other entity. The public keys of each entity are exchanged before encrypted communications begin. Network protocols that use asymmetric encryption (such as HTTPS/TLS/SSL) often utilize symmetric encryption once keys are exchanged. Adversaries may opt to use these encrypted mechanisms that are baked into a protocol.

Kill chain phases

Kill chainPhase
mitre-attack exfiltration

Marking (TLP)

TLP:CLEAR Copyright 2015-2025, The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation.

External references

Related entities

Intrusion sets, malware, reports, vulnerabilities, indicators and other entities linked to this technique.