ECCouncil 312-49v11 (Computer Hacking Forensic Investigator) Practice Test 36

Question 350

A local Windows Security log was cleared before forensic capture. Which event can help identify that action?

  1. Event 1102
  2. Sysmon Event 3
  3. Event 4624
  4. PowerShell 4104

Explanation

Correct Answer

A:

Event 1102 records clearing of the Security audit log and may include the subject account. External log forwarding helps preserve surrounding context if local history is missing.

Incorrect Answers

B:

The current inquiry asks about clearing of the Windows Security log; Sysmon Event ID 3 describes network connections associated with processes when configured; this mechanism chiefly addresses Sysmon process-to-network connection association. It provides host attribution but no complete application payload; it cannot prove clearing of the Windows Security log on its own.

C:

In an inquiry concerning a Windows successful logon record, security event 4624 records successful logons when audited, with logon type and account context; the scope does not extend to clearing of the Windows Security log. It does not by itself show which commands the session performed; that issue cannot settle clearing of the Windows Security log.

D:

Even though the scenario needs clearing of the Windows Security log, PowerShell event 4104 can record executed script block text, with coverage depending on policy and execution context; the action relates to logged PowerShell script content. It can reveal behavior not evident from a process name alone; this remains insufficient for clearing of the Windows Security log.

Question 351

An intruder may have installed a new Windows service for persistence. Which System log event often records the installation?

  1. Sysmon Event 3
  2. Event 7045
  3. Event 4688
  4. Event 4625

Explanation

Correct Answer

B:

Service Control Manager event 7045 can document creation of a service with associated properties. Investigators should correlate it with executable and privilege evidence.

Incorrect Answers

A:

With installation of a Windows service as the investigative issue, Sysmon Event ID 3 describes network connections associated with processes when configured; the result would concern Sysmon process-to-network connection association. It provides host attribution but no complete application payload; this would not resolve installation of a Windows service.

C:

The stem asks about installation of a Windows service; event 4688 records process creation under appropriate audit settings; command-line inclusion requires its own policy configuration; the described operation is used for Windows audited process creation. Execution evidence depends on what was enabled at the time; a determination about installation of a Windows service requires other support.

D:

Instead of a method addressing installation of a Windows service, event 4625 represents failed logon attempts where auditing provides the event; this one concerns a Windows failed logon record. Status and substatus fields may help distinguish causes and logon paths; it cannot independently determine installation of a Windows service.

Question 352

A task appears to have been created just before suspicious code execution, and Security task auditing is enabled. Which ID is relevant?

  1. Event 4698
  2. Event 4624
  3. Event 1102
  4. Event 7045

Explanation

Correct Answer

A:

Security event 4698 records scheduled task creation when appropriate auditing is enabled. Other Task Scheduler Operational events can offer complementary lifecycle evidence.

Incorrect Answers

B:

For an analysis centered on a Windows successful logon record, security event 4624 records successful logons when audited, with logon type and account context; the present need is creation of a Windows scheduled task. It does not by itself show which commands the session performed; a different finding about creation of a Windows scheduled task is still needed.

C:

When the investigative task is clearing of the Windows Security log, event 1102 records clearing of the Security audit log and may include the subject account; that differs from the question about creation of a Windows scheduled task. External log forwarding helps preserve surrounding context if local history is missing; that leaves creation of a Windows scheduled task unresolved.

D:

The current inquiry asks about creation of a Windows scheduled task; service Control Manager event 7045 can document creation of a service with associated properties; this mechanism chiefly addresses installation of a Windows service. Investigators should correlate it with executable and privilege evidence; it cannot prove creation of a Windows scheduled task on its own.

Question 353

Endpoint telemetry contains Sysmon events and investigators need command line, hashes and process lineage for a launch. Which ID should they inspect?

  1. Event 4672
  2. Event 4624
  3. Sysmon Event 3
  4. Sysmon Event 1

Explanation

Correct Answer

D:

Sysmon Event ID 1 captures process creation with enriched context when Sysmon is installed and configured. It is distinct from Windows native Security 4688.

Incorrect Answers

A:

The objective here is Sysmon process creation details; security event 4672 indicates special privileges assigned to a new logon under audit; the option would instead inform special privileges assigned at logon. It is not itself evidence that each privilege was exercised; it is not direct evidence of Sysmon process creation details.

B:

For a separate investigation of a Windows successful logon record, security event 4624 records successful logons when audited, with logon type and account context; that is not the determination of Sysmon process creation details in the stem. It does not by itself show which commands the session performed; the evidence still must speak to Sysmon process creation details.

C:

With Sysmon process creation details as the investigative issue, Sysmon Event ID 3 describes network connections associated with processes when configured; the result would concern Sysmon process-to-network connection association. It provides host attribution but no complete application payload; this would not resolve Sysmon process creation details.

Question 354

A suspicious process initiates an outbound TCP connection, and Sysmon network connection monitoring is enabled. Which event is relevant?

  1. Sysmon Event 1
  2. PowerShell 4104
  3. Sysmon Event 3
  4. Event 4625

Explanation

Correct Answer

C:

Sysmon Event ID 3 describes network connections associated with processes when configured. It provides host attribution but no complete application payload.

Incorrect Answers

A:

A case involving Sysmon process creation details might use this approach: Sysmon Event ID 1 captures process creation with enriched context when Sysmon is installed and configured; the required result here is Sysmon process-to-network connection association. It is distinct from Windows native Security 4688; it cannot replace proof about Sysmon process-to-network connection association.

B:

The required finding is about Sysmon process-to-network connection association; PowerShell event 4104 can record executed script block text, with coverage depending on policy and execution context; this addresses the separate concern of logged PowerShell script content. It can reveal behavior not evident from a process name alone; it does not by itself answer Sysmon process-to-network connection association.

D:

For an analysis centered on a Windows failed logon record, event 4625 represents failed logon attempts where auditing provides the event; the present need is Sysmon process-to-network connection association. Status and substatus fields may help distinguish causes and logon paths; a different finding about Sysmon process-to-network connection association is still needed.

Question 355

Investigators need script block content from PowerShell when script block logging has been enabled. Which event ID helps?

  1. Sysmon Event 1
  2. Sysmon Event 3
  3. Event 7045
  4. PowerShell 4104

Explanation

Correct Answer

D:

PowerShell event 4104 can record executed script block text, with coverage depending on policy and execution context. It can reveal behavior not evident from a process name alone.

Incorrect Answers

A:

Even though the scenario needs logged PowerShell script content, Sysmon Event ID 1 captures process creation with enriched context when Sysmon is installed and configured; the action relates to Sysmon process creation details. It is distinct from Windows native Security 4688; this remains insufficient for logged PowerShell script content.

B:

For the separate question of Sysmon process-to-network connection association, Sysmon Event ID 3 describes network connections associated with processes when configured; the requested assessment of logged PowerShell script content remains open. It provides host attribution but no complete application payload; there is no direct finding about logged PowerShell script content.

C:

The objective here is logged PowerShell script content; service Control Manager event 7045 can document creation of a service with associated properties; the option would instead inform installation of a Windows service. Investigators should correlate it with executable and privilege evidence; it is not direct evidence of logged PowerShell script content.

Question 356

A memory image shows a running process that is absent from normal API enumeration. Which comparison technique can expose hidden processes?

  1. Credential material in RAM
  2. Process list comparison
  3. Process hollowing detection
  4. DLL injection investigation
  5. Memory string extraction

Explanation

Correct Answer

B:

Compare multiple process enumeration methods, including pool scanning and linked-list views, to identify discrepancies. Stale memory objects can resemble hidden processes and need validation.

Incorrect Answers

A:

Instead of a method addressing processes concealed from ordinary enumeration, authentication process memory can contain sensitive derived secrets or tokens, depending on protections and state; this one concerns possible credential exposure in process memory. Access and analysis should be limited and carefully safeguarded; it cannot independently determine processes concealed from ordinary enumeration.

C:

A case involving a legitimate process image replaced in memory might use this approach: process hollowing replaces or manipulates the code image of a launched process, making its name misleading; the required result here is processes concealed from ordinary enumeration. Compare mapped memory with expected image and process creation artifacts; it cannot replace proof about processes concealed from ordinary enumeration.

D:

The required finding is about processes concealed from ordinary enumeration; module enumeration and injection indicators can reveal foreign libraries loaded into a target process; this addresses the separate concern of unusual libraries loaded into another process. Library path alone is insufficient; corroborate memory mappings and execution evidence; it does not by itself answer processes concealed from ordinary enumeration.

E:

Although the case asks about processes concealed from ordinary enumeration, string and structured-memory searches can locate runtime configuration, domains and decoded content; the action instead concerns decoded runtime content in RAM. Results require process and offset context to avoid false associations; it does not establish processes concealed from ordinary enumeration.

Question 357

A legitimate process contains private executable memory regions without a corresponding mapped image. Which memory analysis focus is relevant?

  1. Kernel driver investigation
  2. Credential material in RAM
  3. Injected-code VAD review
  4. DLL injection investigation

Explanation

Correct Answer

C:

Virtual address descriptor and memory-region inspection can reveal suspicious executable allocations or injection. Benign JIT engines also create executable private memory, requiring context.

Incorrect Answers

A:

The current inquiry asks about unexpected executable memory inside a process; kernel module and driver object enumeration can expose loaded components and inconsistencies; this mechanism chiefly addresses loaded kernel-level code and driver objects. Signed status alone is not conclusive proof of benign behavior; it cannot prove unexpected executable memory inside a process on its own.

B:

In an inquiry concerning possible credential exposure in process memory, authentication process memory can contain sensitive derived secrets or tokens, depending on protections and state; the scope does not extend to unexpected executable memory inside a process. Access and analysis should be limited and carefully safeguarded; that issue cannot settle unexpected executable memory inside a process.

D:

For the separate question of unusual libraries loaded into another process, module enumeration and injection indicators can reveal foreign libraries loaded into a target process; the requested assessment of unexpected executable memory inside a process remains open. Library path alone is insufficient; corroborate memory mappings and execution evidence; there is no direct finding about unexpected executable memory inside a process.

Question 358

An implant's configuration is absent from the disk binary but appears in decrypted process memory. Which analysis technique can find it?

  1. Memory network socket analysis
  2. DLL injection investigation
  3. Memory string extraction
  4. Memory acquisition side effects

Explanation

Correct Answer

C:

String and structured-memory searches can locate runtime configuration, domains and decoded content. Results require process and offset context to avoid false associations.

Incorrect Answers

A:

For questions about network socket artifacts recoverable from RAM, memory parsing can recover active or residual network endpoint structures and owning processes; that differs from decoded runtime content in RAM. Stale objects and capture timing require careful interpretation; it provides no direct answer to decoded runtime content in RAM.

B:

The stem asks about decoded runtime content in RAM; module enumeration and injection indicators can reveal foreign libraries loaded into a target process; the described operation is used for unusual libraries loaded into another process. Library path alone is insufficient; corroborate memory mappings and execution evidence; a determination about decoded runtime content in RAM requires other support.

D:

In work concerning the non-atomic nature of live memory capture, live capture changes the system, consumes memory and produces a time-skewed snapshot rather than an atomic freeze; the operation would not resolve decoded runtime content in RAM. Document tool actions and acquisition timing when interpreting RAM; the distinction leaves decoded runtime content in RAM unsettled.

Question 359

A user process has a loaded library from an unusual user-writable path after suspicious remote-thread activity. Which memory investigation applies?

  1. Memory image profile identification
  2. DLL injection investigation
  3. Memory string extraction
  4. Process list comparison

Explanation

Correct Answer

B:

Module enumeration and injection indicators can reveal foreign libraries loaded into a target process. Library path alone is insufficient; corroborate memory mappings and execution evidence.

Incorrect Answers

A:

For an analysis centered on correct structure symbols for a captured operating system, memory analysis depends on appropriate kernel structure definitions and symbol information matching the captured OS; the present need is unusual libraries loaded into another process. Incorrect mappings can produce fabricated object offsets; a different finding about unusual libraries loaded into another process is still needed.

C:

The current inquiry asks about unusual libraries loaded into another process; string and structured-memory searches can locate runtime configuration, domains and decoded content; this mechanism chiefly addresses decoded runtime content in RAM. Results require process and offset context to avoid false associations; it cannot prove unusual libraries loaded into another process on its own.

D:

In an inquiry concerning processes concealed from ordinary enumeration, compare multiple process enumeration methods, including pool scanning and linked-list views, to identify discrepancies; the scope does not extend to unusual libraries loaded into another process. Stale memory objects can resemble hidden processes and need validation; that issue cannot settle unusual libraries loaded into another process.

Question 360

The team suspects credentials were exposed by a memory dump of the authentication subsystem. Which analytical concern is central?

  1. Memory acquisition side effects
  2. Credential material in RAM
  3. Memory network socket analysis
  4. Process hollowing detection
  5. Injected-code VAD review

Explanation

Correct Answer

B:

Authentication process memory can contain sensitive derived secrets or tokens, depending on protections and state. Access and analysis should be limited and carefully safeguarded.

Incorrect Answers

A:

For a separate investigation of the non-atomic nature of live memory capture, live capture changes the system, consumes memory and produces a time-skewed snapshot rather than an atomic freeze; that is not the determination of possible credential exposure in process memory in the stem. Document tool actions and acquisition timing when interpreting RAM; the evidence still must speak to possible credential exposure in process memory.

C:

For questions about network socket artifacts recoverable from RAM, memory parsing can recover active or residual network endpoint structures and owning processes; that differs from possible credential exposure in process memory. Stale objects and capture timing require careful interpretation; it provides no direct answer to possible credential exposure in process memory.

D:

The stem asks about possible credential exposure in process memory; process hollowing replaces or manipulates the code image of a launched process, making its name misleading; the described operation is used for a legitimate process image replaced in memory. Compare mapped memory with expected image and process creation artifacts; a determination about possible credential exposure in process memory requires other support.

E:

Instead of a method addressing possible credential exposure in process memory, virtual address descriptor and memory-region inspection can reveal suspicious executable allocations or injection; this one concerns unexpected executable memory inside a process. Benign JIT engines also create executable private memory, requiring context; it cannot independently determine possible credential exposure in process memory.

Computer Hacking Forensic Investigator (312-49v11) Practice Tests