Adversaries may abuse task scheduling functionality to facilitate initial or recurring execution of malicious code. Utilities exist within all major operating systems to schedule programs or scripts to be executed at a specified date and time. A task can also be scheduled on a remote system, provided the proper authentication is met (ex: RPC and file and printer sharing in Windows environments). Scheduling a task on a remote system typically may require being a member of an admin or otherwise privileged group on the remote system.(Citation: TechNet Task Scheduler Security)
Adversaries may use task scheduling to execute programs at system startup or on a scheduled basis for persistence. These mechanisms can also be abused to run a process under the context of a specified account (such as one with elevated permissions/privileges). Similar to System Binary Proxy Execution, adversaries have also abused task scheduling to potentially mask one-time execution under a trusted system process.(Citation: ProofPoint Serpent)
View in MITRE ATT&CK®| Capability ID | Capability Description | Mapping Type | ATT&CK ID | ATT&CK Name | Notes |
|---|---|---|---|---|---|
| action.hacking.variety.Abuse of functionality | Abuse of functionality. | related-to | T1053 | Scheduled Task/Job | |
| action.hacking.variety.Backdoor | Hacking action that creates a backdoor for use. | related-to | T1053 | Scheduled Task/Job | |
| action.hacking.vector.Backdoor | Hacking actions taken through a backdoor. C2 is only used by malware. | related-to | T1053 | Scheduled Task/Job | |
| amazon_inspector | Amazon Inspector | technique_scores | T1053 | Scheduled Task/Job |
Comments
The Amazon Inspector Best Practices assessment package can assess security control "Configure permissions for system directories" that prevents privilege escalation by local users and ensures only the root account can modify/execute system configuration information and binaries. Amazon Inspector does not directly protect against system modifications rather it just checks to see if security controls are in place which can inform decisions around hardening the system. Furthermore, Amazon Inspector only supports a subset of the sub-techniques for this technique. Due to these things and the fact the security control is only supported for Linux platforms, the score is Minimal.
References
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| aws_config | AWS Config | technique_scores | T1053 | Scheduled Task/Job |
Comments
This control provides partial coverage for one of this technique's sub-techniques, resulting in an overall score of Minimal.
References
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| Technique ID | Technique Name | Number of Mappings |
|---|---|---|
| T1053.005 | Scheduled Task | 1 |
| T1053.007 | Container Orchestration Job | 2 |
| T1053.003 | Cron | 2 |
| T1053.006 | Systemd Timers | 2 |
| T1053.002 | At | 1 |