Offensive Security

Internal Network Penetration Testing

Assess what could happen after an attacker or compromised user gains access inside the network.

Service Overview

A focused technical assessment with clear outcomes

Internal network penetration testing evaluates security controls from a position inside the organization. Testing can identify weaknesses in identity, privilege, segmentation and system configuration that may allow an attacker to expand access after an initial compromise.

Every engagement begins with an agreed scope, written authorization and clear rules for testing. The exact activities depend on the systems, objectives and constraints established with the client before work begins.

Areas of Focus

What we assess

Testing is tailored to the engagement. Relevant areas can include the following.

Internal hosts, services and network segmentsIncluded where relevant to the agreed scope, environment and engagement objectives.
Identity and authentication controlsIncluded where relevant to the agreed scope, environment and engagement objectives.
Privilege escalation opportunitiesIncluded where relevant to the agreed scope, environment and engagement objectives.
Credential exposure and access pathsIncluded where relevant to the agreed scope, environment and engagement objectives.
Network segmentation and trust relationshipsIncluded where relevant to the agreed scope, environment and engagement objectives.
Lateral movement and domain securityIncluded where relevant to the agreed scope, environment and engagement objectives.
TESTING METHODOLOGY

Internal penetration testing methodology

Internal testing examines what could happen after an attacker, compromised device or unauthorized user gains a foothold inside the network.

01
Access scenario

Define the assumed starting position, network access, test credentials, scope and engagement constraints.

02
Internal discovery

Enumerate reachable systems, services, identities, shares and trust relationships.

03
Privilege testing

Evaluate access controls and safely test weaknesses that could permit privilege escalation.

04
Lateral movement

Assess whether compromised access could be extended to additional systems, accounts or sensitive resources.

05
Impact validation

Determine the practical effect of validated attack paths while maintaining agreed safety boundaries.

06
Reporting and retest

Document evidence, remediation priorities and findings that should be validated after corrective work.

Reporting and Deliverables

Clear findings your team can act on

Reporting is designed for both technical teams and business decision makers. Findings are supported by context and organized so remediation can be prioritized.

Validated technical findings
Privilege and access path analysis
Segmentation observations
Evidence and impact context
Prioritized remediation guidance
Retesting options
Remediation and Validation

From finding to corrective action

NetPhantom does not treat delivery of the report as the end of the conversation. Findings are explained, questions are addressed and remediation priorities are clarified. Where appropriate, retesting can be used to confirm that corrective actions have addressed the validated issue.

Start With a Conversation

Discuss Internal Network Penetration Testing

Book a complimentary 30 minute consultation to discuss your environment, concerns and objectives.

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