ECCouncil 212-89 (EC-Council Certified Incident Handler) Practice Test 118

Question 1170

The first task is to corroborate an alert. The case notes state: An iPhone user accepts an untrusted mobile configuration profile that adds a suspicious VPN and root certificate. What should the investigator examine to distinguish a substantiated finding from an assumption?

  1. Correlate mobile browser events with identity provider sign-in and token activity
  2. Use managed configuration profile controls and certificate governance
  3. Remove the unauthorized profile under managed procedures and revoke exposed sessions
  4. Inspect installed profiles, certificate trust and VPN routing configuration

Explanation

Correct Answer

D:

Unapproved profiles can alter both traffic paths and trusted certificate authorities; this permits a traceable finding about whether configuration profiles redirect or intercept traffic before the team makes a disruptive change.

Incorrect Answers

A:

The compromised credential may have been replayed from a different device; the relevant condition for that step is whether mobile-origin credentials were used elsewhere, which is not shown for whether configuration profiles redirect or intercept traffic.

B:

Approved enrollment prevents silent network trust changes; the goal is evidence validation for whether configuration profiles redirect or intercept traffic. Prevention is not incident verification.

C:

Containment stops routing through the suspect configuration; immediate protection does not substantiate findings in the decision about whether configuration profiles redirect or intercept traffic.

Question 1171

The response team seeks the relevant control point for this problem: A retail branch uses unmanaged point-of-sale terminals with no inventory or device-level response contacts. What protection would be proportionate to the observed incident?

  1. Reconcile branch asset lists, software support and management ownership
  2. Build approved reimage and transaction-reconciliation procedures with the vendor
  3. Limit access to high-value services until the device synchronizes and is assessed
  4. Establish a named terminal owner and restrict suspect transaction paths

Explanation

Correct Answer

D:

Controlled response limits possible fraud without improvising against payment infrastructure; this is a first-response safeguard for whether endpoint scope includes specialized business devices, not a substitute for full root-cause analysis.

Incorrect Answers

A:

Untracked terminals hinder coordinated detection and vendor-assisted restoration; the requirement concerns whether endpoint scope includes specialized business devices, so investigation alone does not control current conditions.

B:

Recovery must preserve financial accuracy and supported configurations; the goal is initial containment or preservation for whether endpoint scope includes specialized business devices. Corrective follow-through follows initial protection.

C:

A trust gate prevents stale endpoints from rejoining blindly; that method could help with whether intermittent devices retain protective coverage; the initial containment or preservation decision here involves whether endpoint scope includes specialized business devices.

Question 1172

The initial scene or threat protection decision concerns the following: Hundreds of identical smart meters share the same embedded administrative secret. How should responders limit the damage while retaining the investigation trail?

  1. Block external management access and change the compromised password
  2. Rotate credentials through supported provisioning or replace unfixable devices
  3. Restrict administrative network reachability while planning credential changes
  4. Inventory firmware identities and validate the shared credential design

Explanation

Correct Answer

C:

Segment-level containment reduces fleet-wide abuse; the action limits the impact connected to whether common embedded credentials amplify compromise without assuming the underlying flaw is already gone.

Incorrect Answers

A:

Immediate restrictions limit remote control; this serves whether weak device identity enabled unauthorized access, whereas the requested result is initial containment or preservation involving whether common embedded credentials amplify compromise.

B:

Recovery needs unique trust per asset where possible; the requirement concerns whether common embedded credentials amplify compromise, so corrective follow-through follows initial protection.

D:

One leaked secret could enable access to many devices; investigation alone does not control current conditions in the decision about whether common embedded credentials amplify compromise.

Question 1173

An improvement plan must address recurrence after this case: A response team has no tested way to isolate Macs because its EDR isolation instructions cover only Windows. What should the owner add to the normal control review to reduce recurrence?

  1. Maintain OS-specific responder guides and version compatibility checks
  2. Compare fleet OS inventory with available isolation tooling and privileges
  3. Test platform-specific isolation and acquisition on representative Macs
  4. Enforce managed enrollment, encryption and loss-response testing

Explanation

Correct Answer

A:

Cross-platform readiness reduces operational delay; its effectiveness can be exercised against the warning conditions associated with whether endpoint playbooks cover deployed operating systems.

Incorrect Answers

B:

Unsupported instructions can fail on a material part of the device estate; the case needs recurrence prevention addressing whether endpoint playbooks cover deployed operating systems; an investigation is not recurrence prevention.

C:

Preparation should verify tool behavior on each supported OS; when judging whether endpoint playbooks cover deployed operating systems, case recovery is not future-risk control; this is instead trusted restoration.

D:

Prepared controls reduce loss impact; this serves whether mobile device management can contain loss, whereas the requested result is recurrence prevention involving whether endpoint playbooks cover deployed operating systems.

Question 1174

A case is escalated for independent verification after this finding: An endpoint reports unusual LSASS memory access by a non-security process after a phishing click. What collection or comparison would validate the reported condition?

  1. Isolate the device and limit use of exposed credentials
  2. Use protected credential features and detect sensitive process access
  3. Correlate process access telemetry, privileges and executable provenance
  4. Correlate logon success, process origin and subsequent privileged actions

Explanation

Correct Answer

C:

Unexpected access to the authentication process can indicate credential theft; this permits a traceable finding about whether credential dumping was attempted before the team makes a disruptive change.

Incorrect Answers

A:

Containment protects both endpoint and potential downstream identities; immediate protection does not substantiate findings in the decision about whether credential dumping was attempted.

B:

Memory access controls reduce credential-dumping opportunities; the case needs evidence validation addressing whether credential dumping was attempted; prevention is not incident verification.

D:

A successful authentication after failures can signal an active compromise; the activity targets whether password guessing became successful access; evidence validation here concerns whether credential dumping was attempted.

Question 1175

A security analyst is asked to validate the following reported behavior: An endpoint agent identifies an unusual persistence service but its parent installer is an approved device management package. Which check can confirm the relevant facts before a disruptive action?

  1. Verify installer signatures, deployment manifest and service command path
  2. Avoid destructive isolation while completing targeted validation
  3. Maintain signed package inventory and change-aware endpoint detections
  4. Check signer, release manifest, deployment schedule and process actions

Explanation

Correct Answer

A:

A suspicious-looking service can be legitimate if trusted release evidence corroborates it; it connects the question of whether the service change is authorized to an observable record and a reproducible check.

Incorrect Answers

B:

Proportionate response minimizes disruption from false positives; immediate protection does not substantiate findings in the decision about whether the service change is authorized.

C:

Context reduces incorrect persistence alerts; the case needs evidence validation addressing whether the service change is authorized; prevention is not incident verification.

D:

Authenticity and expected behavior can support a false-positive conclusion; it is meant to address whether the alert is a benign software change, not evidence validation for whether the service change is authorized.

Question 1176

The incident owner requests a defensible factual determination after hearing: A warehouse IoT gateway is repeatedly rebooting after malformed management traffic from an unknown segment. What fact-checking activity tests the observed failure most directly?

  1. Correlate gateway crash logs, source flows and management parser errors
  2. Compare firmware version and signature with vendor release records and flow logs
  3. Filter unauthorized management traffic at the segment boundary
  4. Update supported firmware and validate stable gateway communication
  5. Segment device management and patch vulnerable network services
  6. Review camera authentication logs, firmware and management interface exposure

Explanation

Correct Answer

A:

Timing and input patterns can link traffic to service instability; the objective is to establish whether malicious management requests cause availability loss; the result can then guide the later protective decision.

Incorrect Answers

B:

An unexpected firmware build can change device behavior and external communication; the activity targets whether firmware integrity or destination was altered; evidence validation here concerns whether malicious management requests cause availability loss.

C:

Containment avoids repeatedly rebooting the gateway as the only response; when judging whether malicious management requests cause availability loss, immediate protection does not substantiate findings; this is instead initial containment or preservation.

D:

Recovery should remove the exposed fault condition; for whether malicious management requests cause availability loss, recovery is not factual verification; evidence validation remains necessary.

E:

Reduced reachability limits exploitation; the requirement concerns whether malicious management requests cause availability loss, so prevention is not incident verification.

F:

Default credentials plus public reachability create a straightforward entry path; the other incident centers on whether weak device identity enabled unauthorized access, not this evidence validation question about whether malicious management requests cause availability loss.

Question 1177

The recurrence-prevention decision is based on this report: A workstation generates an alert for a binary launched from a temporary folder, but the analyst has only its file name. What measure strengthens readiness against the observed event?

  1. Analyze the artifact and remove persistence if compromise is confirmed
  2. Use behavior-based EDR detections with process ancestry
  3. Restrict remote assistance tools and record privileged sessions
  4. Inspect file hash, signer, parent process and command-line context

Explanation

Correct Answer

B:

Context improves endpoint triage precision; its effectiveness can be exercised against the warning conditions associated with what corroborates suspicious endpoint execution.

Incorrect Answers

A:

A defensible outcome follows evidence rather than filename alone; the requirement concerns what corroborates suspicious endpoint execution, so case recovery is not future-risk control.

C:

Approved support tooling improves auditability; the activity targets whether a remote-management tool was abused; recurrence prevention here concerns what corroborates suspicious endpoint execution.

D:

Name or location alone is insufficient to prove malicious execution; the case needs recurrence prevention addressing what corroborates suspicious endpoint execution; an investigation is not recurrence prevention.

Question 1178

A post-incident audit examines the following failure mode: A managed Android phone is rooted, causing device-attestation checks to fail during corporate access. What recurring check or restriction would best address the weakness?

  1. Reprovision on a verified supported device and review exposed sessions
  2. Use phishing-resistant MFA and mobile threat protection
  3. Require device integrity attestation for sensitive mobile access
  4. Block access from the noncompliant device through conditional policy
  5. Review device integrity attestation, MDM compliance and enrollment state

Explanation

Correct Answer

C:

Conditional access limits compromised or unmanaged platforms; the control owner can test whether this reduces repeat conditions affecting whether platform integrity meets access policy.

Incorrect Answers

A:

Trust restoration requires an approved system state; for whether platform integrity meets access policy, case recovery is not future-risk control; recurrence prevention remains necessary.

B:

Origin-bound authentication reduces mobile phishing impact; that method could help with whether mobile-origin credentials were used elsewhere; the recurrence prevention decision here involves whether platform integrity meets access policy.

D:

Identity gating reduces risk without treating an attestation result as proof of a specific exploit; one-time protection is not durable prevention in the decision about whether platform integrity meets access policy.

E:

Rooting can change the trust assumptions behind managed endpoint protections; the case needs recurrence prevention addressing whether platform integrity meets access policy; an investigation is not recurrence prevention.

Question 1179

The team needs temporary protection and must retain evidence. The observed event is: An employee laptop reports hundreds of file-renaming operations and rapid changes to document entropy. What narrowly scoped action would best control the immediate risk?

  1. Suspend the responsible process and isolate the laptop from file shares
  2. Rebuild the endpoint and restore affected files from validated backups
  3. Correlate file-modification bursts with originating process and user account
  4. Apply controlled outbound isolation and capture volatile endpoint state

Explanation

Correct Answer

A:

Stopping writes limits immediate file damage and propagation; this is a first-response safeguard for whether ransomware encryption has begun, not a substitute for full root-cause analysis.

Incorrect Answers

B:

Reliable recovery avoids trusting altered local content; the case needs initial containment or preservation addressing whether ransomware encryption has begun; corrective follow-through follows initial protection.

C:

Bulk rewrites and entropy shifts are consistent with encryption activity; when judging whether ransomware encryption has begun, investigation alone does not control current conditions; this is instead evidence validation.

D:

Caution is warranted when an active channel may exist; this serves whether a negative signature alert rules out compromise, whereas the requested result is initial containment or preservation involving whether ransomware encryption has begun.

Question 1180

Before granting routine access again, the team reviews this case: A remote maintenance vendor connects to an industrial gateway from an unapproved device with a previously issued credential. What must the response owner validate as part of safe recovery?

  1. Use supervised time-bound vendor access with device trust checks
  2. Rotate vendor credentials and inspect changes made during the session
  3. Schedule vendor-supported upgrades and validate equipment behavior in staging
  4. Terminate the unauthorized vendor session through site procedure

Explanation

Correct Answer

B:

Recovery includes process configuration and identity review; technical closure should demonstrate that the control gap behind whether vendor remote access was misused is actually corrected.

Incorrect Answers

A:

Controlled maintenance reduces latent remote entry points; when judging whether vendor remote access was misused, future hardening is not current-state recovery; this is instead recurrence prevention.

C:

Safe recovery plans respect process dependencies; the activity targets whether compensating controls can reduce endpoint risk; trusted restoration here concerns whether vendor remote access was misused.

D:

Remote access containment reduces the risk of controller manipulation; the goal is trusted restoration for whether vendor remote access was misused. Temporary protection does not complete correction.

EC-Council Certified Incident Handler (212-89) Practice Tests