IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Bash Shell Profile Modification
editBash Shell Profile Modification
editBoth ~/.bash_profile and ~/.bashrc are files containing shell commands that are run when Bash is invoked. These files are executed in a user’s context, either interactively or non-interactively, when a user logs in so that their environment is set correctly. Adversaries may abuse this to establish persistence by executing malicious content triggered by a user’s shell.
Rule type: query
Rule indices:
- logs-endpoint.events.*
- auditbeat-*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
References:
Tags:
- Domain: Endpoint
- OS: macOS
- OS: Linux
- Use Case: Threat Detection
- Tactic: Persistence
Version: 102
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editevent.category:file and event.type:change and process.name:(* and not (sudo or vim or zsh or env or nano or bash or Terminal or xpcproxy or login or cat or cp or launchctl or java)) and not process.executable:(/Applications/* or /private/var/folders/* or /usr/local/*) and file.path:(/private/etc/rc.local or /etc/rc.local or /home/*/.profile or /home/*/.profile1 or /home/*/.bash_profile or /home/*/.bash_profile1 or /home/*/.bashrc or /Users/*/.bash_profile or /Users/*/.zshenv)
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: Event Triggered Execution
- ID: T1546
- Reference URL: https://attack.mitre.org/techniques/T1546/
-
Sub-technique:
- Name: Unix Shell Configuration Modification
- ID: T1546.004
- Reference URL: https://attack.mitre.org/techniques/T1546/004/