IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Modification of Environment Variable via Launchctl
editModification of Environment Variable via Launchctl
editIdentifies modifications to an environment variable using the built-in launchctl command. Adversaries may execute their own malicious payloads by hijacking certain environment variables to load arbitrary libraries or bypass certain restrictions.
Rule type: query
Rule indices:
- auditbeat-*
- logs-endpoint.events.*
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:
- Elastic
- Host
- macOS
- Threat Detection
- Defense Evasion
Version: 102
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editevent.category:process and host.os.type:macos and event.type:start and process.name:launchctl and process.args:(setenv and not (JAVA*_HOME or RUNTIME_JAVA_HOME or DBUS_LAUNCHD_SESSION_BUS_SOCKET or ANT_HOME or LG_WEBOS_TV_SDK_HOME or WEBOS_CLI_TV or EDEN_ENV) ) and not process.parent.executable:("/Applications/NoMachine.app/Contents/Frameworks/bin/nxserver.bin" or "/usr/local/bin/kr" or "/Applications/NoMachine.app/Contents/Frameworks/bin/nxserver.bin" or "/Applications/IntelliJ IDEA CE.app/Contents/jbr/Contents/Home/lib/jspawnhelper") and not process.args : "*.vmoptions"
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: Hijack Execution Flow
- ID: T1574
- Reference URL: https://attack.mitre.org/techniques/T1574/
-
Sub-technique:
- Name: Path Interception by PATH Environment Variable
- ID: T1574.007
- Reference URL: https://attack.mitre.org/techniques/T1574/007/