huntrule

Windows SyncAppvPublishingServer Execution Triggering PowerShell Module Context

Alerts when SyncAppvPublishingServer.exe appears in PowerShell module ContextInfo on Windows.

FreeReviewedSigma · Medium · v2
Product
windows
Category
ps_module
Author
Ensar Şamil, @sblmsrsn, OSCD Community (SigmaHQ), DRL 1.1
Published
2020-10-05
Updated
2026-07-31
AnalysisDetection

ATT&CK techniques

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 matches process executions where the command/context contains SyncAppvPublishingServer.exe. Attackers can use this binary as a utility to evade PowerShell execution restrictions, making the observed process path or context an important indicator of stealthy execution attempts. It relies on Windows PowerShell module telemetry that includes ContextInfo content from the invocation.

Reporting behind it

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Windows SyncAppvPublishingServer Execution Triggering PowerShell Module Context
Pivot detection · T1218 · 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.