Applied Cybernetics Group
T1573.002 — Asymmetric Cryptography
coverage gap
- Technique
T1573.002- Tactics
- Command and Control
- MISP citations
- 1
- KEV CVEs mapped
- 0
- Community rules
- 0
- thrunt rules
- 0
- Upstream
- https://attack.mitre.org/techniques/T1573/002
MITRE description
Adversaries may employ a known asymmetric encryption algorithm to conceal command and control traffic rather than relying on any inherent protections provided by a communication protocol. Asymmetric cryptography, also known as public key cryptography, uses a keypair per party: one public that can be freely distributed, and one private. Due to how the keys are generated, the sender encrypts data with the receiver’s public key and the receiver decrypts the data with their private key. This ensures that only the intended recipient can read the encrypted data. Common public key encryption algorithms include RSA and ElGamal. For efficiency, many protocols (including SSL/TLS) use symmetric cryptography once a connection is established, but use asymmetric cryptography to establish or transmit a key. As such, these protocols are classified as [Asymmetric Cryptography](https://attack.mitre.org/techniques/T1573/002).
Citing MISP events
Detection coverage
No detection coverage exists for this technique — no SigmaHQ community rule carries its tag and thrunt has not authored one yet. Techniques on this list are exactly where hand-authoring effort goes next; see the rollup for the full queue.