|Change Default File Association
|Windows Management Instrumentation Event Subscription
|Unix Shell Configuration Modification
|Netsh Helper DLL
|Image File Execution Options Injection
|Component Object Model Hijacking
Adversaries may gain persistence and elevate privileges by executing malicious content triggered by the Event Monitor Daemon (emond). Emond is a Launch Daemon that accepts events from various services, runs them through a simple rules engine, and takes action. The emond binary at
/sbin/emond will load any rules from the
/etc/emond.d/rules/ directory and take action once an explicitly defined event takes place.
The rule files are in the plist format and define the name, event type, and action to take. Some examples of event types include system startup and user authentication. Examples
of actions are to run a system command or send an email. The emond service will not launch if there is no file present in the QueueDirectories path
/private/var/db/emondClients, specified in the Launch Daemon configuration file
Adversaries may abuse this service by writing a rule to execute commands when a defined event occurs, such as system start up or user authentication. Adversaries may also be able to escalate privileges from administrator to root as the emond service is executed with root privileges by the Launch Daemon service.
|Disable or Remove Feature or Program
Consider disabling emond by removing the Launch Daemon plist file.
Monitor executed commands and arguments that may gain persistence and elevate privileges by executing malicious content triggered by the Event Monitor Daemon (emond).
Monitor emond rules creation by checking for files created in
Monitor emond rules creation by checking for files modified in
Monitor newly executed processes that may gain persistence and elevate privileges by executing malicious content triggered by the Event Monitor Daemon (emond).