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Get Started Free →cyberstrikeus/T1048.002_exfiltration-over-asymmetric-encrypted-non-c2-protocol
Adversaries may steal data by exfiltrating it over an asymmetrically encrypted network protocol other than that of the existing command and control channel.
Passed 21 of 23 test cases with the skill, and 14 of 23 without it.
and 8 more in the full report
7 fixed14 passed either way2 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 7 test cases the skill fixed. Same model, same prompt, with and without the skill.
For testing non-C2 encrypted exfiltration of raw text strings rather than files from a Linux node via wget, what specific message string payload is assigned to the post data flag in Atomic Test 4?
| Checked | Without skill | With skill |
|---|---|---|
| uses wget parameter --post-data | Passed | Passed |
| includes payload msg=AtomicTestT1048.002 | Missed | Passed |
The instructions your model reads when the skill loads.
Sub-technique of: T1048
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.
Platforms: Linux, macOS, Windows, ESXi
The following tests are from Atomic Red Team and provide actionable ways to test this technique:
Exfiltrate data HTTPS using curl to file share site file.io
Supported Platforms: windows
test cases passed, vs 14 / 23 without
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