68 lines
2.2 KiB
YAML
68 lines
2.2 KiB
YAML
|
|
title: Shadow Copies Deletion Using Operating Systems Utilities
|
|
author: Florian Roth, Michael Haag, Teymur Kheirkhabarov, Daniil Yugoslavskiy, oscd.community,
|
|
Andreas Hunkeler (@Karneades)
|
|
date: 2019/10/22
|
|
description: Shadow Copies deletion using operating systems utilities
|
|
detection:
|
|
SELECTION_1:
|
|
EventID: 1
|
|
SELECTION_10:
|
|
CommandLine: '*resize*'
|
|
SELECTION_11:
|
|
CommandLine: '*shadowstorage*'
|
|
SELECTION_12:
|
|
CommandLine: '*unbounded*'
|
|
SELECTION_2:
|
|
Image:
|
|
- '*\powershell.exe'
|
|
- '*\wmic.exe'
|
|
- '*\vssadmin.exe'
|
|
- '*\diskshadow.exe'
|
|
SELECTION_3:
|
|
CommandLine: '*shadow*'
|
|
SELECTION_4:
|
|
CommandLine: '*delete*'
|
|
SELECTION_5:
|
|
Image:
|
|
- '*\wbadmin.exe'
|
|
SELECTION_6:
|
|
CommandLine: '*delete*'
|
|
SELECTION_7:
|
|
CommandLine: '*catalog*'
|
|
SELECTION_8:
|
|
CommandLine: '*quiet*'
|
|
SELECTION_9:
|
|
Image: '*\vssadmin.exe'
|
|
condition: (SELECTION_1 and ((SELECTION_2 and SELECTION_3 and SELECTION_4) or (SELECTION_5
|
|
and SELECTION_6 and SELECTION_7 and SELECTION_8) or (SELECTION_9 and SELECTION_10
|
|
and SELECTION_11 and SELECTION_12)))
|
|
falsepositives:
|
|
- Legitimate Administrator deletes Shadow Copies using operating systems utilities
|
|
for legitimate reason
|
|
fields:
|
|
- CommandLine
|
|
- ParentCommandLine
|
|
id: c947b146-0abc-4c87-9c64-b17e9d7274a2
|
|
level: critical
|
|
logsource:
|
|
category: process_creation
|
|
product: windows
|
|
modified: 2021/10/24
|
|
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
|
|
- https://github.com/Neo23x0/Raccine#the-process
|
|
- https://github.com/Neo23x0/Raccine/blob/main/yara/gen_ransomware_command_lines.yar
|
|
- https://redcanary.com/blog/intelligence-insights-october-2021/
|
|
status: stable
|
|
tags:
|
|
- attack.defense_evasion
|
|
- attack.impact
|
|
- attack.t1070
|
|
- attack.t1490
|
|
ruletype: SIGMA
|