huntrule

Windows: Process CallTrace using EditionUpgradeManager COM interface DLL

Alerts on process access events with call traces referencing editionupgrademanagerobj.dll via the EditionUpgradeManager COM interface.

FreeReviewedSigma · Medium · v2
Product
windows
Category
process_access
Author
oscd.community, Dmitry Uchakin (SigmaHQ), DRL 1.1
Published
2020-10-07
Updated
2026-07-31
AnalysisDetection

ATT&CK techniques

Priv Esc → Defense Evasion

  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

  14. Impact

What it detects

This rule flags process activity where the call trace contains references to editionupgrademanagerobj.dll, indicating function calls originating from the EditionUpgradeManager COM interface. Because this interface is not commonly used by standard executables, attackers may rely on it to perform actions that blend into legitimate Windows components. Detection relies on process access telemetry that includes call trace contents matching the specified DLL name.

Reporting behind it

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Windows: Process CallTrace using EditionUpgradeManager COM interface DLL
Pivot detection · T1548.002 · 9 related

Changelog

v2
  1. v2
    Candidate ingested via manual entry.2026-07-31
  2. v1
    No changelog recorded for this version.2026-07-30

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.