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cti/enterprise-attack/attack-pattern/attack-pattern--83a766f8-1501-4b3a-a2de-2e2849e8dfc1.json
2026-04-27 15:21:34 -04:00

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{
"type": "bundle",
"id": "bundle--8d342b94-a2fc-441d-b80d-972ece912b72",
"spec_version": "2.0",
"objects": [
{
"type": "attack-pattern",
"id": "attack-pattern--83a766f8-1501-4b3a-a2de-2e2849e8dfc1",
"created": "2020-03-11T14:56:34.154Z",
"created_by_ref": "identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5",
"external_references": [
{
"source_name": "mitre-attack",
"url": "https://attack.mitre.org/techniques/T1568/003",
"external_id": "T1568.003"
},
{
"source_name": "Meyers Numbered Panda",
"description": "Meyers, A. (2013, March 29). Whois Numbered Panda. Retrieved January 14, 2016.",
"url": "http://www.crowdstrike.com/blog/whois-numbered-panda/"
},
{
"source_name": "Moran 2014",
"description": "Moran, N., Oppenheim, M., Engle, S., & Wartell, R.. (2014, September 3). Darwin\u2019s Favorite APT Group [Blog]. Retrieved November 12, 2014.",
"url": "https://www.fireeye.com/blog/threat-research/2014/09/darwins-favorite-apt-group-2.html"
},
{
"source_name": "Rapid7G20Espionage",
"description": "Rapid7. (2013, August 26). Upcoming G20 Summit Fuels Espionage Operations. Retrieved March 6, 2017.",
"url": "https://blog.rapid7.com/2013/08/26/upcoming-g20-summit-fuels-espionage-operations/"
}
],
"object_marking_refs": [
"marking-definition--fa42a846-8d90-4e51-bc29-71d5b4802168"
],
"modified": "2025-10-24T17:49:03.093Z",
"name": "DNS Calculation",
"description": "Adversaries may perform calculations on addresses returned in DNS results to determine which port and IP address to use for command and control, rather than relying on a predetermined port number or the actual returned IP address. A IP and/or port number calculation can be used to bypass egress filtering on a C2 channel.(Citation: Meyers Numbered Panda)\n\nOne implementation of [DNS Calculation](https://attack.mitre.org/techniques/T1568/003) is to take the first three octets of an IP address in a DNS response and use those values to calculate the port for command and control traffic.(Citation: Meyers Numbered Panda)(Citation: Moran 2014)(Citation: Rapid7G20Espionage)",
"kill_chain_phases": [
{
"kill_chain_name": "mitre-attack",
"phase_name": "command-and-control"
}
],
"x_mitre_attack_spec_version": "3.2.0",
"x_mitre_deprecated": false,
"x_mitre_domains": [
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],
"x_mitre_is_subtechnique": true,
"x_mitre_modified_by_ref": "identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5",
"x_mitre_platforms": [
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"Linux",
"macOS",
"Windows"
],
"x_mitre_version": "1.1",
"revoked": false
}
]
}