What's the starting point for internal testing?

We can start from any scenario: compromised workstation, malicious insider, contractor access, or assumed phishing victim. The starting point depends on your threat model.

Do you test Active Directory security?

Absolutely. AD is typically our primary target. We test for Kerberoasting, AS REP roasting, delegation abuse, GPO weaknesses, trust misconfigurations, and more.

How do you avoid disrupting operations?

We use techniques that don't cause service disruption. We coordinate with your team and avoid actions that could trigger outages. Our goal is to prove impact, not cause it.

Can you test network segmentation?

Yes. We specifically test whether segmentation actually prevents lateral movement or just looks good on a diagram.

What access do you need for internal testing?

Typically, standard user credentials and network access equivalent to a compromised workstation. We can also test from zero access to demonstrate physical or wireless attack scenarios.

How long does internal penetration testing take?

Most internal penetration testing engagements run 2 to 3 weeks. A single site network with a single Active Directory domain typically fits in 2 weeks; larger environments with multiple domains, complex segmentation, or higher host counts usually need 3 weeks or more. We confirm the exact timeline during scoping based on host count, AD complexity, and the number of starting scenarios in scope.

Internal Security Assessment

Internal Penetration Testing Services

Discover Your Exposure From Inside

A breach could already be lurking inside your network—are you geared up for that? Orasec internal penetration testing services take a hacker's point of view to see how they would move through, escalate their privileges, and hit your critical assets. We identify realistic attack scenarios, expose weak points in servers, endpoints, and IT systems, and reveal how an attack could spread. In addition, by testing your internal setup, your teams will receive useful tips to defend, lessen insider threat, and keep up security resilience at all times.

Explore Client Portal

Internal Attack Paths

Lateral Movement View

Compromised User

Creds Harvested

Server Access

File Shares

Domain Admin

Crown Jewels

Simulated insider breach path mapped

Lateral movement and privilege escalation visualized

Risk Level

Critical

Lateral Movement: From Foothold to Crown Jewels

Compromised User

Credentials Harvested

Server Access

Domain Admin

Assume Breach, Test Everything

Perimeter defenses fail. Phishing works. Credentials get stolen. The real question for modern security teams isn’t if an attacker enters your network it’s how far can they move once inside? Orasec’s internal penetration testing services simulate real world attacks within your environment, uncovering lateral movement paths, privilege escalation risks, and access to critical assets before a real breach occurs.

The Reality of Internal Pen Testing

Phishing Will Eventually Succeed Attackers exploit human error to gain a foothold.
Insiders Can Become Threats Malicious or accidental insider actions introduce risks.
Partners and Vendors Have Access Third party connections expand your attack surface.
Physical Access Happens On site breaches can compromise servers, workstations, and sensitive systems.

Through internal penetration testing, Orasec helps organizations identify and remediate hidden risks, protect critical systems, and strengthen overall IT security posture.

Assumed Breach Internal Penetration Testing

Orasec's assumed breach testing effectively ignores the question of how an attacker gets in and focuses solely on what happens next. Beginning with a simulated compromised endpoint or a set of stolen credentials, our testers mimic the behavior of a real attacker within your internal environment — they harvest credentials, escalate privileges, move across different network segments, and finally target domain controllers and critical data repositories. This type of engagement represents the closest possible scenario of a post-breach situation and it is the one that continuously uncovers attack paths that perimeter-focused testing fails to bring to light.

Active Directory Penetration Testing — Kerberoasting, BloodHound, and Domain Compromise

Active Directory being the core of most enterprise environments, it is naturally the primary target when an intruder is inside. Through internal penetration testing, Orasec evaluates your AD environment by employing techniques that threat actors typically resort to — BloodHound-guided attack path analysis, Kerberoasting and AS-REP Roasting of service accounts, Pass-the-Hash and Pass-the-Ticket for lateral movement without needing credentials, GPO abuse for persistence, and ACL exploitation for privilege escalation. Each finding corresponds to a documented attack chain that illustrates the very path from a regular domain user to a fully compromised domain.

Map the Blast Radius with Internal Penetration Testing Services

Find Out the Attack Routes Change Before the Hackers Do

Even when attackers manage to get inside your network, this does not imply that they will be able to get hold of your data immediately. In fact, they tend to move sideways, collect different credentials, increase their privileges, and prepare their permanence. What was initially a simple compromised workstation could, within just a few hours, mean that the attacker has the equivalent of domain admin access. Orasec's internal penetration testing services identify these attack paths before the actual adversaries exploit them, providing your team with actionable insights to secure critical systems and reduce overall risk.

Protecting your internal network can be accomplished effectively by Orasec's proficient internal penetration testing services.

Comprehensive Internal Network Assessments for Your Organization

Orasec offers expert internal penetration testing to simulate real world attacks, uncover hidden vulnerabilities, and strengthen internal defenses. Our approach combines manual testing, advanced methodology, and ethical hacking techniques to cover all internal attack surfaces.

Key Sub Areas Covered in Internal Pen Testing:

Network Internal Pen Testing: Evaluate switches, routers, VLANs, and segmentation to detect weaknesses in lateral movement paths.

Server Internal Pen Testing: Assess servers for misconfigurations, unpatched vulnerabilities, and privilege escalation risks.

Workstation & Endpoint Testing: Simulate attacks on desktops and laptops to identify compromised accounts and lateral movement opportunities.

Active Directory & Credential Testing: Analyze AD structure, trusts, GPOs, and credential usage to prevent privilege escalation.

Application & Database Internal Pen Testing: Test internal applications and databases for misconfigurations, over permissioned accounts, and logic flaws.

Cloud & Hybrid Internal Assessment: Identify risks in internally accessible cloud services, permissions, and hybrid environments.

Remote Internal Pen Testing: Simulate attacks through VPNs, remote access gateways, and partner connections.

Active Directory & Credential Attacks in Internal Pen Testing Services

Orasec’s internal penetration testing services provide advanced assessment of Active Directory, credentials, and internal IT systems. Our internal pen testing identifies how attackers move laterally, escalate privileges, and compromise servers, endpoints, and domain controllers before a real breach occurs. Whether it’s network internal penetration testing, server internal penetration testing, or IT internal penetration testing, we cover all attack surfaces.

Credential Harvesting Extract passwords from memory, files, and network traffic to reveal weak accounts during internal pen testing.

Kerberoasting & AS REP Roasting Test service account vulnerabilities with internal penetration testing methodology to prevent privilege escalation.

Pass the Hash & Pass the Ticket Attacks Simulate credential less authentication in internal penetration testing services.

Active Directory Enumeration Detect misconfigured trusts, delegations, and risky administrative settings during internal penetration testing company engagements.

GPO Abuse for Privilege Escalation Identify how misconfigured policies can provide persistence in internal pen testing services.

Network Segmentation Bypass Test misconfigured VLANs and firewalls in network internal penetration testing.

Database & File Server Access Assess over permissioned service accounts for server internal penetration testing and critical data exposure.

Privilege Escalation Paths in Internal Penetration Testing

Orasec’s internal pen testing identifies how attackers move from a single compromised endpoint to full control of your internal network. Using our proven internal penetration testing methodology, we simulate real world attacks to uncover lateral movement, privilege escalation, and access to critical servers, endpoints, and IT systems. Whether it’s network internal penetration testing, server internal penetration testing, or IT internal penetration testing, we map every possible path.

Initial Access Simulate a compromised workstation, VPN, or remote access account. → Foothold established inside your network.

Discovery Enumerate users, shares, servers, and Active Directory structure. → Complete internal attack surface mapped.

Credential Access Harvest and crack credentials from memory, files, and network traffic. → Privileged accounts exposed.

Lateral Movement Move through the network using stolen credentials and misconfigurations. → Critical systems reached.

Privilege Escalation Escalate from regular user to administrator, ultimately achieving domain admin. → Full environment control revealed.

CTA → Simulate Real World Attacks from Within Your Network

Internal threats can come from compromised accounts, insiders, or third party access. Orasec’s internal pen testing methodology reveals attack paths, privilege escalation risks, and misconfigurations in Active Directory, servers, and endpoints. Stay ahead of attackers with a proactive approach.

What Automated Tools Miss in Internal Penetration Testing

Automated tools can detect known vulnerabilities, but they often miss the complex attack paths real attackers exploit. Orasec’s internal pen testing uncovers hidden risks in your network, Active Directory, and IT systems, including:

Multi Hop Active Directory Attack Paths Identify chained attacks that span several systems.

Credential Reuse Patterns Detect weak or repeated passwords across accounts.

Trust Relationship Abuse Reveal risks in domain to domain trust configurations.

Living Off the Land Techniques Simulate attacks using built in Windows tools.

Segmentation Failures Identify weaknesses that allow cross zone network movement.

Service Account Misconfigurations Highlight accounts that could enable domain compromise.

Deliverables from Internal Pen Testing

Attack Path Visualization Graphical mapping of all paths from initial access to critical assets.
Active Directory Security Assessment Comprehensive analysis of AD configurations, privileges, and risks.
Credential Audit Results Insight into password strength, reuse, and exposure across the network.
Segmentation Analysis Evaluate network segmentation effectiveness and lateral movement controls.
Privilege Escalation Report Documented escalation paths with prioritized remediation recommendations.

What We've Found

Achieved domain admin from helpdesk workstation in 4 hours at financial services firm

Discovered 340+ systems reachable from compromised user segment at manufacturing company

Found service account with domain admin rights and password in Group Policy Preferences

Identified path from guest WiFi to production database through legacy system

Compliance Alignment

PCI DSS:11.3.1 Internal penetration testing

ISO 27001:A.9.2 User access management

NIST CSF:PR.AC Identity management and access control

Benefits of Our Internal Network Penetration Testing

Partnering with Orasec for internal penetration testing gives your organization a proactive view of risks inside your network. Our assessments go beyond automated scans to uncover hidden threats, validate security controls, and strengthen your internal defenses. Key benefits include:

Identify Hidden Vulnerabilities: Reveal weaknesses in Active Directory, servers, endpoints, and IT systems that automated tools often miss.

Prevent Lateral Movement & Privilege Escalation: Understand how attackers could move through your network and escalate privileges before they compromise critical assets.

Reduce Insider and Third Party Risk: Assess risks from employees, contractors, and vendors who have internal access to your systems.

Prioritize Remediation: Get actionable insights and prioritized recommendations to focus on the vulnerabilities that matter most.

Compliance & Audit Readiness: Support PCI DSS, ISO 27001, SOC 2, HIPAA, and GDPR alignment with structured, audit ready reporting.

Strengthen Overall Security Posture: Proactively secure servers, workstations, network segments, and Active Directory to maintain long term cybersecurity resilience.

Real World Attack Simulation: Simulate authentic attacks with internal pen testing methodology to uncover what attackers would exploit in your environment.

Frequently Asked Questions

Related Services

External Penetration Testing

Simulate real world attacks on internet facing infrastructure. Manual pentests find vulnerabilities scanners miss before attackers exploit them.

Learn more

Network Infrastructure Penetration Testing

Internal and external network penetration testing by certified testers. We uncover misconfigurations, lateral movement paths, and segmentation failures across routers, firewalls, and servers before attackers do. OraSec.

Learn more

Red Teaming

Adversary simulation and red teaming services by certified experts. We test whether your people, processes, and technology can detect and contain a determined attacker from phishing to full network compromise. OraSec.

Learn more

Proactively Secure Your Internal Network with Orasec

Don’t wait for a breach to occur. Orasec’s internal penetration testing identifies how attackers could move laterally, escalate privileges, and compromise services. Gain actionable insights and strengthen your IT infrastructure before vulnerabilities are exploited.

Get Expert Guidance on Internal Penetration Testing

Connect with Orasec’s certified penetration testers to identify risks, secure your network, and reduce internal threats. We provide tailored internal assessments based on your IT environment and compliance requirements.

Free 30 minute consultation
Custom internal network testing scope & pricing
No obligation security review