SigmaHQ/rules/windows/process_creation/win_sdbinst_shim_persistence.yml

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1.0 KiB
YAML

title: Possible Shim Database Persistence via sdbinst.exe
id: 517490a7-115a-48c6-8862-1a481504d5a8
status: experimental
description: Detects installation of a new shim using sdbinst.exe. A shim can be used to load malicious DLLs into applications.
references:
- https://www.fireeye.com/blog/threat-research/2017/05/fin7-shim-databases-persistence.html
tags:
- attack.persistence
- attack.privilege_escalation
- attack.t1546.011
- attack.t1138 # an old one
author: Markus Neis
date: 2019/01/16
modified: 2021/04/01
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith:
- '\sdbinst.exe'
CommandLine|contains:
- '.sdb'
filter:
- CommandLine|contains:
- 'iisexpressshim.sdb' # normal behaviour for IIS Express (e.g. https://www.hybrid-analysis.com/sample/15d4ff941f77f7bdfc9dfb2399b7b952a0a2c860976ef3e835998ff4796e5e91?environmentId=120)
condition: selection and not filter
falsepositives:
- Unknown
level: high