Suspicious SyncAppvPublishingServer Bypass Powershell Restriction - PS Module (via ps_module)

This rule detects SyncAppvPublishingServer process execution which usually used by threat actors to bypass PowerShell execution restrictions.

SigmamediumWindowsv1

sigma

suspicious-syncappvpublishingserver-bypass-powershell-restriction-ps-module-via-ps-module

title: Suspicious SyncAppvPublishingServer Bypass Powershell Restriction - PS Module (via ps_module)
id: 5719c12a-cf4d-57ec-a032-9d5049834c01
status: stable
description: This rule detects SyncAppvPublishingServer process execution which usually used by threat actors to bypass PowerShell execution restrictions.
references:
    - https://attack.mitre.org/techniques/T1218/
    - https://lolbas-project.github.io/lolbas/Binaries/Syncappvpublishingserver/
author: 'Huntrule Team'
date: 2026-03-20
tags:
    - attack.stealth
    - attack.t1218
logsource:
    product: windows
    category: ps_module
    definition: 0ad03ef1-f21b-4a79-8ce8-e6900c54b65b
detection:
    selection:
        ContextInfo|contains: 'SyncAppvPublishingServer.exe'
    condition: selection
falsepositives:
    - Unknown
level: medium

Known false positives

Unknown

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