SigmaHQ/rules/windows/process_creation/win_shadow_copies_deletion.yml

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1.4 KiB
YAML

title: Shadow Copies Deletion Using Operating Systems Utilities
id: c947b146-0abc-4c87-9c64-b17e9d7274a2
status: stable
description: Shadow Copies deletion using operating systems utilities
author: Florian Roth, Michael Haag, Teymur Kheirkhabarov, Daniil Yugoslavskiy, oscd.community
date: 2019/10/22
references:
- https://www.slideshare.net/heirhabarov/hunting-for-credentials-dumping-in-windows-environment
- https://blog.talosintelligence.com/2017/05/wannacry.html
- https://securingtomorrow.mcafee.com/other-blogs/mcafee-labs/new-teslacrypt-ransomware-arrives-via-spam/
- https://www.bleepingcomputer.com/news/security/why-everyone-should-disable-vssadmin-exe-now/
- https://www.hybrid-analysis.com/sample/ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa?environmentId=100
tags:
- attack.defense_evasion
- attack.impact
- attack.t1070
- attack.t1490
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith:
- '\powershell.exe'
- '\wmic.exe'
- '\vssadmin.exe'
CommandLine|contains|all:
- shadow # will mach "delete shadows" and "shadowcopy delete"
- delete
condition: selection
fields:
- CommandLine
- ParentCommandLine
falsepositives:
- Legitimate Administrator deletes Shadow Copies using operating systems utilities for legitimate reason
level: critical