CS0-003 Security Operations Practice Question
During a threat hunting exercise, the hunter creates a hypothesis based on recent threat intelligence about a new ransomware variant that uses scheduled tasks for persistence. Which ATT&CK technique should the hunter focus on?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
T1053.005 (Scheduled Task)
Scheduled tasks are a persistence technique (T1053.005). The hunter should focus on the persistence tactic and the specific technique for scheduled tasks.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
T1566.001 (Spearphishing Attachment)
Why it's wrong here
Spearphishing attachments are categorized under the Initial Access tactic in the MITRE ATT&CK framework, as they are used to gain an initial foothold in a target network. Because the threat hunter's hypothesis specifically focuses on establishing persistence, this technique is incorrect as it does not allow an adversary to maintain access after system reboots or session terminations.
- ✗
T1059.001 (PowerShell)
Why it's wrong here
PowerShell is an execution technique used by adversaries to run malicious commands and scripts on a compromised host. While an attacker might use PowerShell to configure a persistence mechanism, the utility itself falls under the Execution tactic rather than serving as a standalone persistence mechanism.
- ✓
T1053.005 (Scheduled Task)
Why this is correct
Scheduled Tasks (T1053.005) represent a highly common persistence mechanism where adversaries abuse task scheduling utilities, such as Windows Task Scheduler, to execute malicious binaries at specific intervals or system events. This technique directly aligns with the threat hunter's hypothesis of identifying persistent execution methods that survive reboots and user logoffs.
- ✗
T1547.001 (Registry Run Keys)
Why it's wrong here
Although Registry Run Keys are indeed used for persistence by executing programs during user logon, they represent a distinct sub-technique (T1547.001) under the Boot or Logon Autostart Execution technique. This option is incorrect because the specific hypothesis focuses on task scheduling mechanisms rather than registry-based autostart configurations.
Go deeper
Related to this question
Learn chapter
Threat Emulation and Purple Team Exercises
Key term
Threat
A threat is any potential danger that could harm a computer system, network, or data, whether from a malicious hacker, a natural disaster, or an accidental mistake.
Key term
Persistence
Persistence is the set of techniques attackers use to maintain long-term access to a compromised system even after reboots or credential changes.
About these practice questions
One of 701 original CS0-004 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CS0-004 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CS0-004 exam.