Internal
Penetration Testing
A thorough assessment of your internal network environment, simulating an attacker who has gained initial access to identify privilege escalation paths, lateral movement opportunities, and critical vulnerabilities.
Starting at $5,000 per engagement
Assume Breach Testing
Simulate real-world attacker scenarios inside your network
Key Test Areas
Our internal penetration tests cover critical attack vectors used by real-world threat actors.
Active Directory Assessment
Enumerate users, groups, policies, and trust relationships to identify misconfigurations and attack paths.
Credential Harvesting
Test for credential exposure via LLMNR/NBT-NS poisoning, responder attacks, and network traffic analysis.
Privilege Escalation
Attempt local and domain privilege escalation paths to assess the potential for attackers to gain elevated access.
Lateral Movement
Simulate attacker movement across network segments using pass-the-hash, token impersonation, and RDP pivoting.
Network Segmentation Testing
Verify proper isolation between network zones and identify paths that bypass segmentation controls.
Service Account Analysis
Identify overprivileged or misconfigured service accounts that could be exploited for privilege escalation.
Kerberoasting & AS-REP Roasting
Test for weak service account passwords by extracting and attempting to crack Kerberos tickets offline.
Internal Web App Testing
Assess internal portals and management interfaces for vulnerabilities that could lead to system compromise.
Our Methodology
Real-world attack simulation following threat actor tactics, techniques, and procedures.
Reconnaissance
Network enumeration, service discovery, and Active Directory mapping from an insider perspective.
Exploitation
Credential attacks, vulnerability exploitation, and initial privilege escalation attempts.
Post-Exploitation
Lateral movement, domain escalation, and persistence mechanism testing.
Reporting
Detailed findings with attack paths, business impact analysis, and prioritized remediation steps.
Why Internal Testing Matters
Sooner or later a phishing email lands, a contractor's laptop gets reused, or a VPN credential shows up in a password dump. At that point the attacker has exactly what any of your employees has: a workstation and a standard domain account. What happens next depends entirely on how your internal network is built. A service account with a Kerberos SPN and a password set in 2019, a local administrator password reused across every desktop in the building, a file share holding a deployment script with plaintext credentials in it — any one of those turns a single ordinary user into domain admin, and none of them are visible from the internet.
An internal penetration test starts exactly where that attacker starts. We work from a standard domain user account with no elevated privileges and try to reach everything that matters. That means Kerberoasting and AS-REP roasting against weak service account passwords, LLMNR and NBT-NS poisoning to capture credentials off the wire, pass-the-hash and token impersonation and RDP pivoting to move between hosts, GPO and delegation misconfigurations in Active Directory, overprivileged service accounts, internal portals nobody hardened on the assumption that they were never exposed, and whether your network segmentation actually holds when someone pushes on it. Testing runs remotely over VPN or through a drop box shipped to your office, or on-site if your environment requires it.
You get an experienced tester you speak with directly, and a report that lays out the full attack path step by step — the account we started from, the misconfiguration we used, and the system it reached — prioritized by business risk rather than by scanner severity. Retesting is free within 30 days so you can confirm the path is actually closed. We work with organizations across the Charlotte, NC area and nationwide.
Assume Breach Readiness
Validate your detection and response capabilities against realistic attacker behavior.
Protect Crown Jewels
Identify paths attackers could use to reach your most sensitive systems and data.
Secure Active Directory
Harden your AD environment against common attack techniques used by threat actors.
Free Retesting
Complimentary retest of all findings within 30 days to validate remediation.
Industries Where This Service Applies
We tailor scope, methodology, and reporting to your industry's compliance landscape.
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Learn moreFrequently Asked Questions
How much does internal penetration testing cost?
Internal penetration testing starts at $5,000. Final pricing depends on the number of hosts and the size of your Active Directory environment. Get a free, scoped quote within 24 hours.
How do you access our internal network for testing?
We support both remote and on-site approaches. For remote testing, you provide a VPN connection or ship us a preconfigured laptop plugged into your network. For on-site engagements, our tester works directly from your office. Remote testing is the most common and equally effective for the majority of environments.
What do you test during an internal penetration test?
We test Active Directory security (misconfigurations, trust relationships, GPO weaknesses), credential attacks (Kerberoasting, AS-REP roasting, LLMNR/NBT-NS poisoning), lateral movement paths, privilege escalation vectors, network segmentation, internal web applications, file shares with sensitive data, and service account hygiene.
How long does an internal penetration test take?
A typical internal pentest takes 5–10 business days, depending on the size and complexity of the network. Small environments with a single domain may take less time, while large enterprises with multiple domains, forests, and network segments may require 2–3 weeks.
Can you perform the test remotely, or do you need to be on-site?
Most internal penetration tests are performed remotely via VPN or a drop box—a small device shipped to your office and connected to the network. This approach is just as thorough as on-site testing and eliminates travel costs. On-site testing is available if your security requirements or network architecture demand it.
How is an internal pentest different from an external pentest?
An external pentest evaluates your perimeter defenses from the internet. An internal pentest assumes an attacker has already gained a foothold—through phishing, a compromised VPN, or a malicious insider—and tests what they can do inside your network. Internal tests focus on Active Directory attacks, lateral movement, and privilege escalation that are not visible from the outside.
What do you need from us before testing starts?
We need network access (VPN credentials or a drop box connection), the IP ranges in scope, a standard domain user account, and a signed statement of work. Optionally, network diagrams and AD documentation help us scope accurately. We can typically start within 24 hours once access is in place.
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