Detection rules › Sigma
SyncAppvPublishingServer Bypass Powershell Restriction - PS Module
Detects SyncAppvPublishingServer process execution which usually utilized by adversaries to bypass PowerShell execution restrictions.
Known false positives
- App-V clients
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Stealth |
Telemetry coverage
| Provider | Record / event type |
|---|---|
| PowerShell | Event ID 4103: Payload Context: ContextInfo User Data: UserData. |
Rule body
title: SyncAppvPublishingServer Bypass Powershell Restriction - PS Module
id: fe5ce7eb-dad8-467c-84a9-31ec23bd644a
related:
- id: fde7929d-8beb-4a4c-b922-be9974671667
type: derived
- id: 9f7aa113-9da6-4a8d-907c-5f1a4b908299
type: derived
status: test
description: Detects SyncAppvPublishingServer process execution which usually utilized by adversaries to bypass PowerShell execution restrictions.
references:
- https://lolbas-project.github.io/lolbas/Binaries/Syncappvpublishingserver/
author: 'Ensar Şamil, @sblmsrsn, OSCD Community'
date: 2020-10-05
modified: 2022-12-02
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:
- App-V clients
level: medium
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
ContextInfo|contains: 'SyncAppvPublishingServer.exe'
Indicators
These rows show field, operator, and value matches.
| Field | Kind | Values | Search |
|---|---|---|---|
ContextInfo | match |
| field:"ContextInfo" kind:match value:"SyncAppvPublishingServer.exe" |