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Sublime Plugin or Application Script Modification

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Sublime Plugin or Application Script Modification

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Adversaries may create or modify the Sublime application plugins or scripts to execute a malicious payload each time the Sublime application is started.

Rule type: eql

Rule indices:

auditbeat-*
logs-endpoint.events.*

Severity: low

Risk score: 21

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://posts.specterops.io/persistent-jxa-66e1c3cd1cf5

Tags:

Elastic
Host
macOS
Threat Detection
Persistence

Version: 100 (version history)

Added (Elastic Stack release): 7.12.0

Last modified (Elastic Stack release): 8.5.0

Rule authors: Elastic

Rule license: Elastic License v2

Investigation guide

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Rule query

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file where event.type in ("change", "creation") and file.extension :
"py" and file.path : ( "/Users/*/Library/Application
Support/Sublime Text*/Packages/*.py", "/Applications/Sublime
Text.app/Contents/MacOS/sublime.py" ) and not process.executable
: ( "/Applications/Sublime Text*.app/Contents/*",
"/usr/local/Cellar/git/*/bin/git",
"/Library/Developer/CommandLineTools/usr/bin/git",
"/usr/libexec/xpcproxy", "/System/Library/PrivateFrameworks/Desk
topServicesPriv.framework/Versions/A/Resources/DesktopServicesHelper"
)

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
Technique:
- Name: Compromise Client Software Binary
- ID: T1554
- Reference URL: https://attack.mitre.org/techniques/T1554/

Rule version history

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Version 100 (8.5.0 release)

Formatting only

Version 4 (8.4.0 release)

Updated query, changed from:

file where event.type in ("change", "creation") and file.extension :
"py" and file.path : ( "/Users/*/Library/Application
Support/Sublime Text*/Packages/*.py", "/Applications/Sublime
Text.app/Contents/MacOS/sublime.py" ) and not process.executable
: ( "/Applications/Sublime Text*.app/Contents/MacOS/Sublime
Text*", "/usr/local/Cellar/git/*/bin/git",
"/usr/libexec/xpcproxy", "/System/Library/PrivateFrameworks/Des
ktopServicesPriv.framework/Versions/A/Resources/DesktopServicesHelper"
, "/Applications/Sublime Text.app/Contents/MacOS/plugin_host"
)

Version 2 (8.2.0 release)

Formatting only

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