Cybersecurity & Information Security

Lateral Movement Investigation in a Windows Domain Environment

6 min readPublished: August 5, 2026

Professional visual illustration on Lateral Movement investigation in Windows and Identity

Quick answer

Lateral Movement investigation requires reading the full event, not just the Event ID: time, computer, user, Logon ID, Process, network source, and organizational context. The conclusion is formed by correlating several sources.

Windows and Identity investigation relies on a combination of authentication events, process creation, permission changes, Sysmon Telemetry, and organizational context. A single event almost never provides a complete conclusion. This article focuses on Lateral Movement investigation and is intended for analysts and IR investigators. The goal is to provide a working methodology that can be applied in practice, in a professional interview, and in a work environment, without being limited to a dictionary definition.

The main challenge is that data is almost always partial. 4624 Logon Types 3/10, 4648 explicit credentials, 7045 service installation can indicate a direction, but their meaning depends on time, asset, user, and expected activity. Therefore, we will build the investigation around an investigative question, required evidence, and a clear criterion for completion.

The practical scenario in the article is: reconstructing a path from three workstations and one account. All examples are lab data or process descriptions. When it comes to Penetration Testing, Web, or Cloud, work only with explicit approval, a defined Scope, and the ability to stop the test.

What is Lateral Movement?

The topic 'What is Lateral Movement' is a central part of working on Lateral Movement investigation. It is recommended to break it down into three questions: what is the input, what decision do you want to make, and what evidence is sufficient to justify it. These questions prevent automatic tool use without understanding the goal.

In practice, record 4624 Logon Types 3/10, 4648 explicit credentials, 7045 service installation, 5140/5145 shares, remote management, compare to expected behavior, and define at least one Pivot. The result should be verifiable by another analyst, including limitations and next steps.

Log Sources for Each Protocol

At this stage, define what evidence is needed to answer the investigative question. For Lateral Movement investigation, the basic points are Event ID and Provider, Computer, User and Logon ID, Process, Parent and Command Line, Source IP, Workstation and Logon Type. For each source, document owner, retention period, time zone, ingestion delay, and potentially missing fields.

Collection quality is not measured by whether the log 'arrives'. Completeness, Latency, Parsing, Duplicate events, and time synchronization must be checked. A Canary test or a known lab event allows verifying that the action appeared at the source, passed through the Pipeline, and is searchable in the correct fields.

Connecting Source Host to Destination

Proper implementation begins with requirements, not defaults. Define which Use Cases are supported, what the data volume is, who manages the configuration, and what the Rollback mechanism is. In Lateral Movement investigation, differentiate between settings that generate Telemetry and settings that filter or enrich it.

After defining, run a controlled test with expected data, verify that the event was recorded, that the main fields exist, and that the change did not create overload or a Blind spot. Every change is saved in a version, with date, owner, reason, and test result.

Account Reuse and Timeline

Timeline is the backbone of Lateral Movement investigation. Normalize times to UTC or explicitly state the time zone, save both Event time and Ingestion time, and connect events by stable identifiers. The line should include time, source, entity, action, result, and reliability.

A gap or contradiction is not a document error but a finding. Clock drift, ingestion delay, NAT, PID reuse, or a persistent Session can change the order. Therefore, uncertainty ranges are specified, and a link back to the raw evidence is maintained.

Scoping and Containment

The response to Lateral Movement investigation should reduce risk without erasing evidence still needed. Start with a reversible and focused action, confirm ownership and authority, and document time, perpetrator, and result.

Long-term remediation addresses the root cause: permissions, configuration, Validation, Telemetry, process, or training. After implementation, Retest and monitor for signs of recurrence, rather than settling for closing a Ticket.

Unique Investigation Focus Areas

In this topic, it is recommended to build a focused evidence map in advance. The main investigation focus areas are: 4624 Logon Types 3/10, 4648 explicit credentials, 7045 service installation, 5140/5145 shares, remote management. The list is not an automatic Checklist; each item is chosen because it can link an entity, action, and time or explain legitimate behavior.

4624 Logon Types 3/10: Define what is the expected value, what would be considered anomalous, and what additional source would corroborate the finding.
4648 explicit credentials: Define what is the expected value, what would be considered anomalous, and what additional source would corroborate the finding.
7045 service installation: Define what is the expected value, what would be considered anomalous, and what additional source would corroborate the finding.
5140/5145 shares: Define what is the expected value, what would be considered anomalous, and what additional source would corroborate the finding.
remote management: Define what is the expected value, what would be considered anomalous, and what additional source would corroborate the finding.

When one of the focus areas is unavailable, document the gap and choose an alternative. For example, if Process identifier is not stable, you can use time, Host, User, and Parent; if Payload is encrypted, use Metadata, volume, frequency, and TLS/DNS context.

Recommended Workflow

Define a Scope and one working question regarding Lateral Movement investigation.
List the data sources and required evidence: 4624 Logon Types 3/10, 4648 explicit credentials, 7045 service installation, 5140/5145 shares.
Create a short Baseline of normal behavior or expected outcome.
Perform the minimum test in a lab environment and save time, input, and output.
Build a Timeline or comparison table and separate fact from interpretation.
Pivot to an additional source to confirm or refute the initial explanation.
Summarize the decision, limitations, recommended action, and Retest criteria.

Practical Scenario

The chosen scenario is reconstructing a path from three workstations and one account. The purpose of the exercise is not to prove an attack capability, but to practice collecting, comparing, and documenting safely. Before starting, define simulated data, time window, and expected outcome.

At the end of the exercise, a product should be submitted that another analyst or tester can review: a screenshot or Export of the evidence, a short Timeline, an initial hypothesis, corroborating evidence, limitation, and recommendation. When there is insufficient evidence, the correct conclusion is that the scenario was not proven.

Step	What is performed	Output
Preparation	Define Scope, time, and objective. Note which fields or evidence from 4624 Logon Types 3/10, 4648 explicit credentials, 7045 service installation are expected to appear.	Short test plan
Data Creation	Perform a safe and simulated action related to Lateral Movement investigation, without real information or impact on a production system.	Controlled Event/Request/Flow
Collection	Collect raw evidence and context from an additional source. Verify Time zone, identifiers, and integrity.	Two linked pieces of evidence
Analysis	Write what each piece of evidence proves, what it does not prove, and what is the possible legitimate explanation.	Interim conclusion
Completion	Choose closure, escalation, Finding, or Tuning; add recommendation and Retest.	Documented output

Practical Checklist

Check and document: Event ID and Provider.
Check and document: Computer, User, and Logon ID.
Check and document: Process, Parent, and Command Line.
Check and document: Source IP, Workstation, and Logon Type.
Check and document: Group/Privilege changes.
Check and document: Sysmon ProcessGuid or SessionGuid.
Specify Time zone, tool version, and collection time.
Save raw data before filtering or modification.
Write what the finding proves and what is still unknown.
Define owner and next action with a deadline.

Common Mistakes

Relying on Event ID without fields.
Confusing Logon with the attack source.
Ignoring Logon Type.
Linking Processes by PID only.
Assuming all PowerShell is malicious.
Closing an event without checking the Domain Controller.

Summary and CTA

Lateral Movement investigation in a Windows Domain environment is a topic that combines technical knowledge with work discipline. Start with a question, collect only relevant evidence, maintain context and time, and choose an action that can be justified and retested.

In HPI's Cybersecurity & AI track, these principles are practiced using systems, logs, and labs. A natural progression is to move to linked articles, perform the lab exercise, and save the output as part of a professional portfolio.

FAQ

Does Lateral Movement investigation alone prove an attack or vulnerability?

No. It provides a signal or a finding that requires context, validation, and an additional source. A professional conclusion relies on a sequence of evidence and consistency with expected behavior.

What to do when some data is missing?

Document the missing data, check for an alternative source, and reduce the level of confidence. Do not fill in fields by assumption or present Unknown as valid.

How long should evidence be retained?

The time depends on policy, regulation, cost, and event type. It is important to define Retention, Legal hold, and the ability to export evidence in a verifiable format in advance.

How to practice without risking a real system?

Use virtual machines, simulated data, CTF, or a dedicated lab. In authorized tests, define Scope, Stop conditions, and backup before starting work.