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Internal Network Penetration Testing

Simulate an insider breach and see how far an attacker can reach

NeedSec conducts internal network testing from within your environment — simulating a compromised device, malicious insider, or attacker who has bypassed your perimeter. We identify lateral movement paths, privilege escalation routes, and which systems an attacker could realistically reach.

Manual-led testing

Every assessment is led by a qualified security engineer — human judgment, not just automated scanning.

Evidence-backed findings

Each vulnerability includes proof of concept, reproduction steps, and a business-impact risk rating.

Actionable fix guidance

Reports are structured for developers and decision makers so remediation can start immediately.

What We Test

Focused testing against realistic attack paths

NeedSec combines manual testing, structured methodology, and business-focused reporting to identify issues that matter — not just scanner noise.

01

Internal network scanning — live hosts, open ports, and running services

02

Active Directory enumeration — users, groups, GPOs, and trust relationships

03

Kerberoasting, AS-REP roasting, and credential abuse techniques

04

Weak and default credentials across services, shares, and endpoints

05

Lateral movement path mapping — pass-the-hash, pass-the-ticket

06

Privilege escalation — local admin to domain admin attack paths

07

Network segmentation validation — VLAN bypass and cross-segment access

08

SMB, RPC, and Windows protocol abuse testing

09

Internal web applications, admin panels, and management portals

10

Sensitive data discovery — file shares, databases, and credential stores

11

Post-exploitation impact analysis — access to critical business systems

12

Detection and logging gap observations

Deliverables

What you receive after every engagement

Every engagement concludes with a professional report package — written to drive action across your technical and business teams.

Internal network exposure summary

An overview of what's reachable and exploitable from within the internal network.

Active Directory risk findings

Specific weaknesses identified in Active Directory configuration and object permissions.

Lateral movement path documentation

Evidence of how an attacker could pivot between systems once inside the network.

Privilege escalation evidence

Proof-of-concept demonstrating how a low-privilege account could gain elevated access.

Sensitive data exposure findings

Findings on where sensitive data is accessible without adequate protection.

Severity-rated vulnerability report

A full report of vulnerabilities ranked by severity and business risk.

Remediation roadmap

A prioritised plan for fixing identified issues, sequenced by risk and effort.

Retest results

Outcome of post-fix verification testing, confirming which issues were successfully resolved.

Need help scoping this assessment?

Share your target systems, business goals, and timeline. NeedSec will help define the correct scope and testing approach.

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