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Merge PR SigmaHQ#4947 from @omaramin17 - Add `DNS Query To Put.io - D…
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…NS Client`

new: DNS Query To Put.io - DNS Client 

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Co-authored-by: nasbench <[email protected]>
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omaramin17 and nasbench authored Aug 23, 2024
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title: DNS Query To Put.io - DNS Client
id: 8b69fd42-9dad-4674-abef-7fdef43ef92a
status: experimental
description: Detects DNS queries for subdomains related to "Put.io" sharing website.
references:
- https://darkatlas.io/blog/medusa-ransomware-group-opsec-failure
author: Omar Khaled (@beacon_exe)
date: 2024-08-23
tags:
- attack.command-and-control
logsource:
product: windows
service: dns-client
definition: 'Requirements: Microsoft-Windows-DNS Client Events/Operational Event Log must be enabled/collected in order to receive the events.'
detection:
selection:
EventID: 3008
QueryName|contains:
- 'api.put.io'
- 'upload.put.io'
condition: selection
falsepositives:
- Legitimate DNS queries and usage of Put.io
level: medium

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