Nasreddine Bencherchali
598d29f811
chore: change tags, date, modified fields to comply with v2 of the Sigma spec. chore: update the related type from `obsoletes` to `obsolete`. chore: update local json schema to the latest version.
33 lines
1.2 KiB
YAML
33 lines
1.2 KiB
YAML
title: Powershell Timestomp
|
|
id: c6438007-e081-42ce-9483-b067fbef33c3
|
|
status: test
|
|
description: |
|
|
Adversaries may modify file time attributes to hide new or changes to existing files.
|
|
Timestomping is a technique that modifies the timestamps of a file (the modify, access, create, and change times), often to mimic files that are in the same folder.
|
|
references:
|
|
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1070.006/T1070.006.md
|
|
- https://www.offensive-security.com/metasploit-unleashed/timestomp/
|
|
author: frack113
|
|
date: 2021-08-03
|
|
modified: 2022-12-25
|
|
tags:
|
|
- attack.defense-evasion
|
|
- attack.t1070.006
|
|
logsource:
|
|
product: windows
|
|
category: ps_script
|
|
definition: 'Requirements: Script Block Logging must be enabled'
|
|
detection:
|
|
selection_ioc:
|
|
ScriptBlockText|contains:
|
|
- '.CreationTime ='
|
|
- '.LastWriteTime ='
|
|
- '.LastAccessTime ='
|
|
- '[IO.File]::SetCreationTime'
|
|
- '[IO.File]::SetLastAccessTime'
|
|
- '[IO.File]::SetLastWriteTime'
|
|
condition: selection_ioc
|
|
falsepositives:
|
|
- Legitimate admin script
|
|
level: medium
|