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Pluto Security
// Expert Internal Penetration Testing

Deep Internal Penetration Testing Services for Networks, Hosts & Active Directory

Test Your Internal Network From an Attacker’s Perspective
Strengthen your internal security with professional internal network penetration testing designed to identify vulnerabilities across your network and infrastructure. Our internal penetration test evaluates authentication, access controls, exposed services, privilege escalation opportunities, and potential attack paths to uncover weaknesses that could be exploited after an attacker gains internal access.
Our Services
  • Manual Testing First

    Certified operators hunt the flaws automated scans miss, by hand, every time.

  • Assumed Breach Ready

    We start inside your network, exactly where a real intruder would land.

  • Proof with Every Finding

    No guessing! Each issue arrives validated, ranked, and easy to verify.

  • Free Retest Included

    Once you fix it, we test again to confirm it holds. No extra invoice.

About Internal Pentest

Securing the Network Once an Attacker Gets Inside

At Pluto Security, our Internal Penetration Testing Services help organizations identify vulnerabilities across internal networks, systems, and infrastructure. Our internal network penetration testing assesses access controls, authentication, configurations, privilege escalation, and potential attack paths. Using a structured internal network penetration testing methodology, we provide clear findings and practical remediation guidance to strengthen your internal security.

Certified Manual Testers

Assumed Breach Methodology

Evidence Based Findings

Free Remediation Retest

// Scope

What We Cover in Internal Pen Testing

Lateral Movement and Pivoting

Our internal penetration testing services start from an assumed breach and hunt every path a foothold could take toward your most sensitive systems.

Active Directory Exposure

This internal network penetration testing digs into AD misconfigurations, weak service accounts, Kerberos abuse, and the privilege paths attackers chain toward domain admin.

Privilege Escalation

We test how a low level user or host can climb to elevated access, catching local and domain escalation before an intruder does.

Segmentation and Trust Relationships

Our internal infrastructure penetration testing checks segmentation boundaries, flat networks, and the trust relationships attackers love to abuse across systems.

Insecure Internal Services and Hosts

Using trusted internal penetration testing tools alongside manual review, we probe internal hosts, exposed shares, weak protocols, and misconfigured services.

Credential Access and Reuse

We hunt cached credentials, reused passwords, and weak secrets that let one compromised account quietly unlock many more.

// Methodology

Our Internal Network Penetration Testing Methodology

  1. 01

    Scoping

    We define your internal ranges, hosts, environment, and goals so testing targets what truly matters to your business.

  2. 02

    Assumed Breach Setup

    We start from a realistic internal foothold, mapping live hosts, services, and trust relationships before a single test begins.

  3. 03

    Manual Testing

    Certified testers probe lateral movement, Active Directory, privilege escalation, and segmentation by hand, guided by a proven internal network penetration testing methodology.

  4. 04

    Exploitation and Impact Validation

    We safely validate significant weaknesses and chain them where appropriate to show exactly how far a real intruder could reach.

  5. 05

    Reporting and Free Retest

    You receive an audit ready report ranked by real risk, then we retest the fixed issues at no extra cost to confirm they are fully closed.

// Get started

Strengthen Your Internal Security Today

Identify internal vulnerabilities, uncover potential attack paths, and strengthen your network infrastructure with professional Internal Penetration Testing Services.

// What we deliver

Comprehensive Internal Security Findings

Our Internal Penetration Testing delivers clear, evidence based insights into vulnerabilities across your internal network and infrastructure. You receive detailed findings, technical evidence, risk analysis, and practical remediation guidance to help strengthen your internal security posture.
  • Detailed Security Findings

    Clear identification of vulnerabilities and security weaknesses.

  • Technical Evidence 

    Supporting evidence to help your team understand and validate findings.

  • Risk & Impact Analysis

    Practical insight into potential business and security impact.

  • Actionable Remediation Guidance

    Clear recommendations to address vulnerabilities and strengthen internal security.

Why Choose Pluto Security?

Secure the Network Once an Attacker Gets Inside

Our Internal Penetration Testing Services combine structured security testing with realistic attack simulation to identify vulnerabilities across your internal network and infrastructure. We use a proven internal network penetration testing methodology to assess access controls, authentication, privilege escalation, lateral movement, and potential attack paths. From targeted internal penetration tests to comprehensive internal infrastructure penetration testing, we deliver evidence based findings and practical remediation guidance to help strengthen your internal security posture.

Manual First

Humans catch the trust abuses and chained attack paths that automated tools never will.

Certified Operators

OSCP, CISSP, GPEN, and GIAC certified testers run every engagement. No juniors, no outsourcing.

Zero False Positives

We prove exploitability before it reaches your report. If it is listed, it is real.

Our Assumed Breach Internal Testing Approach

  • Evaluate internal systems, infrastructure, exposed services, and security controls.
  • Identify and safely validate vulnerabilities across the internal environment.
  • Assess authentication, permissions, access controls, and privilege escalation risks.
  • Examine AD configurations, credentials, permissions, and potential attack paths.

What you get

  • Executive Summary
  • Technical Findings
  • Risk Ranking
  • Remediation Guidance

Tools and Frameworks We Use

  • Nmap
  • BloodHound
  • Metasploit
  • Impacket
// Business impact

Why Internal Penetration Testing Matters

Once an attacker gets inside, your internal network becomes the real battleground, making it a critical attack surface. Our internal penetration testing services validate real world risks and help you strengthen defenses before a breach turns into a disaster.

Contain the First Foothold 

Test how far one compromised host or account can actually spread inside.

Limit Lateral Movement

Check segmentation so an intruder cannot roam freely across your whole network.

Protect Active Directory

Catch the AD misconfigurations and privilege paths that lead straight to domain admin.

Stop Privilege Escalation 

Find the gaps that let a basic user climb into powerful, sensitive access.

Secure Internal Services

Harden exposed shares, weak protocols, and misconfigured hosts sitting inside your walls.

Reduce Credential Abuse 

Spot reused and cached credentials that let one account quietly unlock many more.

Validate Security Controls 

Confirm your internal defenses actually stop realistic attacks, not just tick a box.

Support Secure Operations 

Give your team practical, proven findings for building a safer network from here on out.

// INTERNAL TESTING FAQS

Frequently Asked Questions About Internal Penetration Testing

Need More Information? Talk to an engineer.

// Get started

Strengthen Your Internal Security Today

Identify internal vulnerabilities, uncover potential attack paths, and strengthen your network infrastructure with professional Internal Penetration Testing Services.