Competition Strategy 03
Use the opening minutes to understand the image, divide responsibilities, protect evidence, establish a baseline, and create a task order that guides the rest of the round.
Fast does not mean random. A disciplined opening reduces duplicate work, protects required functionality, and helps the team start high-value work with better information.
Lesson Snapshot
Learning objectives
Explain why the opening minutes should focus on orientation and baseline awareness instead of rapid-fire changes.
Build a practical 15-minute opening routine that the whole team can repeat during practice rounds.
Assign responsibilities without isolating teammates or duplicating work.
Identify high-confidence findings while separating them from issues that still require investigation.
Protect forensic evidence and required services during the opening review.
Create a shared task board that guides the rest of the round.
Opening principle
The opening phase should answer four questions: What is required? What is the current state? What is clearly wrong? What still needs investigation?
Once the team can answer those questions, it can move faster because people are less likely to duplicate work or make conflicting decisions.
Time pressure trap
If the team skips scenario review, duplicates the same checks, or changes high-impact settings without context, later troubleshooting can consume far more time than the opening review would have taken.
Opening timeline
The exact timing can vary by team and image. The important part is preserving the sequence: understand, baseline, triage, then begin controlled work.
0-3 minutes
Confirm the scenario, machine purpose, required users, administrators, services, applications, restrictions, and forensic questions before anyone starts making broad changes.
3-7 minutes
Give each teammate a clear starting responsibility and establish a quick picture of the current system state without attempting to fix every issue yet.
7-12 minutes
Separate obvious high-confidence issues from items that need more evidence. This is where the team turns observations into an ordered task list.
12-15 minutes
Begin the first justified changes while the team continues documenting, verifying, and protecting required functionality.
Baseline snapshot
A baseline is not a full audit. It is a fast, structured snapshot that helps the team understand what exists and where deeper investigation is needed.
Compare existing accounts and elevated privileges with the scenario. Record mismatches, but confirm context before removing or disabling anything.
Check whether the system's built-in protections, firewall, anti-malware controls, and update mechanisms appear functional and appropriately configured.
Identify major services and software that support the machine's mission. Distinguish required functionality from suspicious or unnecessary items that need further review.
Confirm basic connectivity and note important network settings before making firewall, interface, remote-access, or service changes that could affect communication.
Determine whether the operating system and major applications appear current enough for the scenario, while remembering that updates can take time and may affect services.
Identify logs, files, accounts, processes, or other evidence connected to forensic questions before cleanup or hardening changes alter the state.
Team assignments
Tracks the scenario summary, task board, major findings, time, risky changes, and unresolved items. The coordinator keeps the team synchronized.
Takes primary responsibility for the current image and performs controlled review and hardening while reporting major changes.
Reads forensic questions early, identifies evidence-rich areas, records supporting facts, and warns teammates before evidence-changing actions.
Handles networking tasks and verifies that connectivity remains stable when firewall, interface, or service changes are made.
Provides a second set of eyes for uncertain or disruptive changes and can investigate difficult findings while the main system owner continues with clear work.
Quick team questions
What is this machine supposed to do?
Which users and administrators are explicitly authorized?
Which services or applications must remain available?
What forensic evidence should be protected?
What is clearly wrong right now?
What looks unusual but is not yet proven to be wrong?
Which changes could disrupt the image if done carelessly?
Who owns each task and who needs to know about it?
Shared task board
A task board prevents the team from treating every finding the same way. It also makes unresolved and risky work visible instead of letting it disappear in someone's notes.
High-confidence, high-value tasks with clear evidence and manageable risk.
Important findings that need more context, logs, documentation, or teammate review before action.
Changes that may affect required services, networking, authentication, permissions, domain roles, or other teammates.
Completed actions that still need confirmation, documentation, or follow-up testing.
Opening mistakes
A teammate can create a problem in the first minute by changing something the scenario explicitly requires.
Duplicate work wastes the most valuable time and leaves other areas untouched.
An unusual user, service, or application may only be a lead. Separate observations from confirmed problems.
Without a baseline, it becomes harder to determine whether a later problem existed before the team changed the system.
Evidence can be overwritten, deleted, or changed by normal hardening actions. Read the questions early.
Changes to networking, permissions, authentication, or services can affect the whole team. Communicate before high-impact actions.
Worked opening
This fictional timeline shows how the opening routine turns raw observations into coordinated work.
Minute 1
What happens
The team reads the scenario and learns that two named users are authorized, only one is an administrator, and a remote-management service is required.
Why it matters
These are immediate constraints. Any user, privilege, or service decision must preserve those requirements.
Minute 5
What happens
The system owner notices an unfamiliar account and a disabled security feature. The forensics lead finds a question related to recent file activity.
Why it matters
The disabled protection looks like a high-confidence lead. The unfamiliar account and file activity need investigation before removal or cleanup.
Minute 9
What happens
The team places the security feature in Do Now, the unfamiliar account in Investigate, and any remote-service changes in Risky / Coordinate.
Why it matters
The task board separates clear work from uncertain and potentially disruptive work.
Minute 13
What happens
The system owner begins the high-confidence protection fix while the forensics lead preserves relevant evidence and the coordinator records the change.
Why it matters
The team is now moving quickly without losing control of context, evidence, or required functionality.
Reflection
Question 1
Why is it useful to spend several minutes reading and baselining instead of immediately applying a hardening checklist?
Question 2
What should happen when a teammate finds a suspicious account but the scenario does not clearly say whether it is authorized?
Question 3
Why should risky networking or service changes be placed in a separate coordination category?
Question 4
What makes a task appropriate for the Do Now column?
Question 5
How can a quick baseline help troubleshoot a problem that appears later?
Question 6
Why should the task board include a Done / Verify column instead of only marking tasks complete?
First 15 checklist
Read the scenario and ReadMe before broad changes.
List required users, administrators, services, applications, and restrictions.
Read forensic questions immediately.
Assign system ownership and coordination roles.
Baseline users and administrative privileges.
Baseline security protections and update state.
Identify required services and major applications.
Confirm basic networking before disruptive changes.
Separate high-confidence findings from investigation items.
Mark risky changes that require team coordination.
Create a shared task board.
Begin with controlled, verifiable work.
Record important changes.
Keep unresolved items visible.
Re-check team priorities after the opening phase.
Next strategy lesson
Next, learn how to decide which tasks deserve immediate attention, which need more evidence, which are too risky to rush, and which should be placed in a revisit queue.