A file server used by a shared service account begins renaming documents, deleting shadow copies, and creating outbound SMB connections to many internal hosts. The SOC suspects the malware may be spreading while also encrypting data. Which two actions are the best immediate containment steps? Select two.
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
Best answer
Isolate the affected server from the network through EDR or switch controls.
Isolation is the fastest way to stop further encryption and prevent the suspected spread from reaching more systems. When a server is actively affecting files and reaching out to other hosts, limiting its network access is the most effective containment measure available immediately.
Best answer
Disable or reset the compromised service account and revoke active sessions.
If the shared service account is being abused, revoking it can stop the attacker from reusing credentials to move laterally. This is especially important because the malware is already making internal SMB connections. Controlling the account closes a likely propagation path, not just the infected host.
Distractor review
Restore the server from backup before taking any containment action.
Restoring too early can overwrite evidence and may reintroduce the malware if the restoration source is not verified. Backups matter, but containment comes first when the compromise is still active. The environment must be stabilized before recovery begins.
Distractor review
Delete the suspicious files from the server to stop the encryption process.
Manually deleting files is risky and can destroy evidence without reliably stopping the malware. If the process is still active, the attacker may continue through other paths or credentials. Removing files is not the preferred first containment step when the host is still communicating internally.
Distractor review
Inform users that the incident is likely a false positive and continue monitoring.
The observed behaviors are consistent with active malicious activity, not a harmless alert. Continuing to monitor without containment allows additional damage and possible spread. This would be an operationally unsafe response given the encryption, shadow-copy deletion, and internal SMB activity.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Related practice questions
Related SY0-701 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Security+ social engineering questions
Practise SY0-701 questions linked to Security+ social engineering questions.
Security+ cryptography practice questions
Practise SY0-701 questions linked to Security+ cryptography.
Security+ IAM questions
Practise SY0-701 questions linked to Security+ IAM questions.
Security+ risk management questions
Practise SY0-701 questions linked to Security+ risk management questions.
Security+ incident response questions
Practise SY0-701 questions linked to Security+ incident response questions.
Security+ malware questions
Practise SY0-701 questions linked to Security+ malware questions.
Security+ vulnerability management questions
Practise SY0-701 questions linked to Security+ vulnerability management questions.
Security+ security operations questions
Practise SY0-701 questions linked to Security+ security operations questions.
Security+ zero trust questions
Practise SY0-701 questions linked to Security+ zero trust questions.
Security+ authentication factors questions
Practise SY0-701 questions linked to Security+ authentication factors questions.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A laptop is suspected of being used in a malware incident. It is still powered on and connected to Wi-Fi. What should the responder do before shutting it down?
Question 2
An employee reports a ransomware note on a file server. The server is still powered on, shares are still being accessed, and management wants service restored as quickly as possible. What should the incident response team do first?
Question 3
An employee reports a ransomware note on a finance laptop. The laptop is still powered on, connected to Wi-Fi, and the user says they were just working in a spreadsheet. Management wants the fastest safe response that also preserves evidence. What should the responder do first?
Question 4
You are handed a company laptop suspected in an insider theft case. Legal says the evidence may be needed in court. Which action best preserves admissibility?
Question 5
A developer wants to reduce the risk of SQL injection in a new customer search form. Which two changes are the best mitigations? Select two.
Question 6
A branch office uses a flat LAN, and a compromise on one user workstation could spread quickly to finance systems. Management wants finance workstations isolated from general users, but finance staff still need access to a central finance application and network printer. What is the best design change?
FAQ
Questions learners often ask
What does this SY0-701 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Isolate the affected server from the network through EDR or switch controls. — The best immediate containment steps are isolating the server and disabling the compromised service account. Isolation stops the encryption and blocks further network propagation from the affected host. Resetting the service account closes a likely path for lateral movement because the attacker appears to be using it to reach other systems. Those actions contain the incident without destroying evidence prematurely. Why others are wrong: Restoring from backup, deleting files, or dismissing the alert all risk worsening the incident. Recovery should wait until containment and evidence collection are complete, and manual cleanup can destroy crucial forensic artifacts. The priority is to cut off the infected server and the compromised credentials it may be using.
What should I do if I get this SY0-701 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
Discussion
Sign in to join the discussion.