Detection rules › Sigma
History File Deletion
Detects events in which a history file gets deleted, e.g. the ~/bash_history to remove traces of malicious activity
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Impact | T1565.001 Data Manipulation: Stored Data Manipulation |
Event coverage
| Provider | Event |
|---|---|
| Sysmon-for-Linux | Event ID 1 |
Rule body yaml
title: History File Deletion
id: 1182f3b3-e716-4efa-99ab-d2685d04360f
status: test
description: Detects events in which a history file gets deleted, e.g. the ~/bash_history to remove traces of malicious activity
references:
- https://github.com/sleventyeleven/linuxprivchecker/
- https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1552.003/T1552.003.md
author: Florian Roth (Nextron Systems)
date: 2022-06-20
modified: 2022-09-15
tags:
- attack.impact
- attack.t1565.001
logsource:
category: process_creation
product: linux
detection:
selection:
Image|endswith:
- '/rm'
- '/unlink'
- '/shred'
selection_history:
- CommandLine|contains:
- '/.bash_history'
- '/.zsh_history'
- CommandLine|endswith:
- '_history'
- '.history'
- 'zhistory'
condition: all of selection*
falsepositives:
- Legitimate administration activities
level: high
Stages and Predicates
Stage 0: condition
all of selection*Stage 1: selection
selection:
Image|endswith:
- '/rm'
- '/unlink'
- '/shred'
Stage 2: selection_history
selection_history:
- CommandLine|contains:
- '/.bash_history'
- '/.zsh_history'
- CommandLine|endswith:
- '_history'
- '.history'
- 'zhistory'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
CommandLine | ends_with |
|
CommandLine | match |
|
Image | ends_with |
|