title: Solarwinds SUPERNOVA Webshell Access
id: a2cee20b-eacc-459f-861d-c02e5d12f1db
status: test
description: Detects access to SUPERNOVA webshell as described in Guidepoint report
references:
- https://www.guidepointsecurity.com/supernova-solarwinds-net-webshell-analysis/
- https://www.anquanke.com/post/id/226029
author: Florian Roth (Nextron Systems)
date: 2020-12-17
modified: 2023-01-02
tags:
- attack.persistence
- attack.t1505.003
- detection.emerging-threats
logsource:
category: webserver
detection:
selection1:
cs-uri-query|contains|all:
- 'logoimagehandler.ashx'
- 'clazz'
selection2:
cs-uri-query|contains: 'logoimagehandler.ashx'
sc-status: 500
condition: selection1 or selection2
falsepositives:
- Unknown
level: critical