Please help to identify the following description belonging to which technique in MITRE and the corresponding tactics: ThiefQuest uses a function named <code>is_debugging</code> to perform anti-debugging logic. The function invokes <code>sysctl</code> checking the returned value of <code>P_TRACED</code>. ThiefQuest also calls <code>ptrace</code> with the <code>PTRACE_DENY_ATTACH</code> flag to prevent debugging.