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Convert indexed Sigma rules into analyst-ready detections.
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Indexed Rules
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17
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CLI Versions
10
Newest: 2.0.2
Translation Workspace
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Tune Translation
Active Rule
Time Machine Backup Deletion Attempt Via Tmutil - MacOS
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Time Machine Backup Deletion Attempt Via Tmutil - MacOS
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
title: Time Machine Backup Deletion Attempt Via Tmutil - MacOS
id: 452df256-da78-427a-866f-49fa04417d74
status: test
description: |
Detects deletion attempts of MacOS Time Machine backups via the native backup utility "tmutil".
An adversary may perform this action before launching a ransonware attack to prevent the victim from restoring their files.
references:
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1490/T1490.md#atomic-test-12---disable-time-machine
- https://www.loobins.io/binaries/tmutil/
author: Pratinav Chandra
date: 2024-05-29
tags:
- attack.impact
- attack.t1490
logsource:
category: process_creation
product: macos
detection:
selection_img:
- Image|endswith: '/tmutil'
- CommandLine|contains: 'tmutil'
selection_cmd:
CommandLine|contains: 'delete'
condition: all of selection_*
falsepositives:
- Legitimate activities
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/macos/process_creation/proc_creation_macos_tmutil_delete_backup.yml