Please help to identify the following description belonging to which technique in MITRE and the corresponding tactics: ThiefQuest invokes <code>time</code> call to check the system's time, executes a <code>sleep</code> command, invokes a second <code>time</code> call, and then compares the time difference between the two <code>time</code> calls and the amount of time the system slept to identify the sandbox.