DET0039: Detection Strategy for Dynamic Resolution across OS Platforms
DET0039 is a detection strategy object for finding command-and-control behavior that relies on dynamic resolution: infrastructure details such as domains,...
Analyst context for executives and security teams
DET0039 is a detection strategy object for finding command-and-control behavior that relies on dynamic resolution: infrastructure details such as domains, IP addresses, or ports changing over time to avoid simple blocklists and one-time remediation. For leaders, the practical issue is whether the organization can see and investigate shifting outbound communications across Windows, Linux, macOS, and ESXi environments tied to the related ATT&CK technique T1568.
Executive priority
Prioritize this as a resilience and incident-response readiness question: if malicious command-and-control endpoints change dynamically, can the SOC still identify, scope, and contain the activity after a domain or IP is blocked? Executives should ask whether DNS, network egress, and endpoint network telemetry are retained, correlated, and usable as audit evidence for response decisions across the operating systems in scope for the related technique.
Technical view
The supplied detection-strategy object has no official detection text, platforms, or tactics, but it is related to T1568 Dynamic Resolution under command-and-control for ESXi, Linux, macOS, and Windows. SOC and detection engineering teams should validate coverage around outbound connection patterns where destination domain, IP address, or port changes over time, especially when endpoint process context can be joined to DNS and network records.
Likely telemetry
- DNS query and response logs, including resolver, client, queried domain, answers, and timestamps
- Passive DNS or historical DNS enrichment where available
- Firewall, proxy, secure web gateway, and egress connection logs
- NetFlow or equivalent network metadata showing destination IPs, ports, timing, and volume
- Endpoint or EDR process-to-network connection telemetry on Windows, Linux, macOS, and ESXi where available
Detection direction
- Validate that detections do not rely only on static domain or IP indicators, because the related technique explicitly involves dynamic adjustment of domain names, IP addresses, or ports.
- Correlate DNS resolution events with subsequent outbound connections and endpoint process context to distinguish suspicious dynamic infrastructure use from ordinary browsing or service traffic.
- Tune for false positives from legitimate CDNs, cloud services, software update mechanisms, load balancers, and enterprise SaaS platforms that also use frequently changing destinations.
- Check blind spots such as hosts using external DNS resolvers directly, unmanaged servers, ESXi management networks, short log retention, and network segments without egress telemetry.
- Use relationship context to focus analysis on command-and-control hypotheses rather than treating every dynamic DNS or changing destination pattern as malicious by default.
Mitigation priorities
- Centralize and retain DNS and egress telemetry so investigation remains possible after infrastructure changes.
- Restrict unmanaged direct-to-internet DNS and egress paths where operationally feasible.
- Maintain asset and ownership context for systems on ESXi, Linux, macOS, and Windows to support rapid scoping.
- Use layered controls such as egress filtering, proxy enforcement, and investigation playbooks rather than relying only on static blocklists.
- Review incident-response procedures for how teams pivot from one observed domain, IP, or port to related historical activity.
Analyst notes and limits
This take is based on the official DET0039 metadata and its relationship to ATT&CK technique T1568 Dynamic Resolution. Because the detection-strategy object itself does not provide official detection logic, the recommendations are framed as validation directions rather than guaranteed analytics.
Official description, official detection text, tactics, and platforms are not specified on the DET0039 object. Platform and tactic context comes from the related T1568 technique only. Local telemetry availability, retention, network architecture, and approved business services are required to determine actual coverage and tuning.
Detection Strategy for Dynamic Resolution across OS Platforms
No official description is available in the imported ATT&CK source object.
How security teams should use this page
Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.
Techniques used
This mirrors the MITRE pattern of making group, software, campaign, and technique relationships scannable. Relationship notes come from mirrored ATT&CK relationship text when available.
| Domain | ID | Name | Relationship / procedure |
|---|---|---|---|
| Enterprise | T1568 | Dynamic Resolution | This object detects Dynamic Resolution. |
All related ATT&CK context
Object version and sync metadata
The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates .
Imported snapshots across ATT&CK releases (1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.0 | Current bundle | 7f61da4f380d… |
Mirrored ATT&CK source object
The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.
External references and citations
MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.
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mitre-attack DET0039Open source URL
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