Peneto Labs: Penetration Testing Services

Internal Penetration Testing

Secure Your Internal Network Before It’s Compromised. Peneto Labs tests your internal network like real-world adversaries — identifying weaknesses missed by tools and exposing how attackers can move laterally or escalate privileges.
  • Lateral Movement Simulation
  • Active Directory Testing
  • CERT-In Empaneled Experts
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Sample Report

We Understand the Security Risks Inside Your Network

Internal systems—are now a frequent target for ransomware, insider threats, and credential misuse. Misconfigurations, weak access controls, and unpatched services can give attackers full control after gaining initial access to the network.
Peneto Labs has helped enterprises secure their internal infrastructure by uncovering vulnerabilities in network protocols, poorly segmented VLANs, outdated services, and internal access control models. Our team brings deep expertise and certifications like OSCP, OSCE, GXPN, and CISSP to every engagement. We simulate real-world lateral attacks, privilege escalation, and network pivoting—providing you with a clear picture of what an insider or breached system could compromise.
CERT-In Empanelled

Realistic Insider Threat Simulation

AD & Network Exploit Coverage

Manual & Automated Techniques

CERT-In Empanelled 

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What’s at Risk Without Proper Internal Pentesting

  • Attackers move laterally undetected
  • Compromised credentials exploited further
  • Sensitive data accessed internally
  • Domain controllers fully compromised
  • Ransomware spreads across systems
  • Business operations severely disrupted
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Our Internal Penetration Testing Includes:

We don’t stop at running tools. Our internal penetration testing combines adversary emulation, exploit chaining, and manual validation to surface critical risks across your internal infrastructure. Our methodology is aligned with CERT-In guidelines, MITRE ATT&CK and NIST 800-115 frameworks—giving your team actionable insight into what a threat actor can exploit from the inside.

Network Mapping and Enumeration

Authentication and Credential Testing

Service and Port Exploitation

Misconfiguration and Patch Gaps

Privilege Escalation Techniques

Lateral Movement Simulation

Active Directory Exploitation

Post-Exploitation Data Discovery

Internal Segmentation Validation

We test from the perspective of a compromised endpoint or insider threat actor to highlight what lies within reach.
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Process

Our Testing Process

01

Discovery & Scoping

We work with your team to define the goals of pentesting and internal testing scope, including asset types, access boundaries, and risk areas.

02

Internal Threat Simulation

We perform hands-on exploitation and movement across internal systems, simulating attackers who already bypassed perimeter defenses.

03

Reporting & Support

You’ll receive a prioritized report with executive summaries, technical findings, PoCs, and developer-ready remediation guidance—plus free retesting after patching.

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Sample Certificate of Penetration Testing

What You’ll Receive?

We simulate insider threats and privilege escalation — then deliver detailed reports with clear remediation paths. Your team gains visibility, control, and risk-based prioritization.

  • Risk-Ranked Technical Report
  • Executive Summary for Leadership
  • Developer/IT-Focused Remediation Steps
  • Proof-of-Concept for Key Issues
  • Free Re-Test of Fixed Vulnerabilities
  • CERT-In Compliant Testing Certificate
  • Compliance Support for ISO 27001, SOC 2, NIST, PCI-DSS
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Client Testimonials

Some words from our clients

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We recently partnered with Peneto Labs

to conduct vulnerability and penetration testing on our IT infrastructure, and we couldn't be more satisfied with the experience. From beginning to end, their team showed outstanding expertise and professionalism. They delivered a comprehensive report filled with actionable recommendations and provided multiple solution walkthroughs. Their guidance was instrumental in resolving issues, ultimately helping us obtain an audit certificate. This certificate was crucial for achieving compliance with our client. We highly recommend Peneto Labs penetration testing services.

CEO

Anniyam Payment

We can say with confidence

that Peneto Labs are a team of highly skilled and dedicated professionals who have always provided excellent and prompt IT security auditing services which helped us to closing the security gaps in our organisation and prevent compromise.

Dokonally

We’ve been working with Pentolabs

for our VAPT needs and we are happier with their services. They’re professional, efficient and have helped us improve our security posture of the application & infrastructure significantly. Their source code reviews are especially helpful in identifying vulnerabilities. Highly recommended.

Technical Architect

Axlerate Futuretech

The Phishing email services

offered by Pentolabs have been excellent which is an essential part of Cyber Security awareness which was very effective to understand for the security managers on how people react to such emails. I personally recommend it to anybody who wants to increase their Cyber threat awareness. An Ideal and a must for all employees in the organization. Thank you Pentolabs

Senior Manager - Cyber Security & BCP

National Commodity Clearing Limited

We have been conducting security assessments

for the 14 years. However, Peneto Labs expertise, Methodology, and reporting are world class. No reports from our past vendors match their quality & skills. They have done a wonderful job.

Manager

IT. String Information Services

The team at Peneto Labs are highly trained

, extremely knowledgeable, professionals who have assisted us in the successful installation of our firewall. Peneto Labs is an amazing company who has always been a fantastic support for our business. They are fast, reliable, friendly and helpful, and always available in case of an emergency. The staff are really experienced and we would not hesitate to recommend them highly to any business

I.T Head

Expertus
Geojit (1)
federal-bank (1)
aditya-birla-capital (1)
karur-vysya-bank (1)
dhanlaxmi-bank (1)
axis-finance (1)
m2p-fintech
photon
manappuram
latentview
hexagon
ncdex

What You’ll Receive — Internal Testing

Harden Your Internal Environment Before It’s Too Late Most breaches start internally—either through compromised credentials or trusted access. Our internal penetration testing helps you discover what’s at risk after the perimeter is breached and what an attacker could do next.
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Frequently Asked Questions

Internal penetration testing is a controlled security assessment that simulates an attack from inside your network, such as a malicious employee, an insider threat, or an attacker who has bypassed your perimeter defenses. 

It is necessary because most security breaches originate from within the organization—either unintentionally by employees or intentionally by attackers with some level of internal access. This testing helps uncover misconfigurations, weak user privileges, outdated systems, and lateral movement opportunities before they can be exploited in a real-world attack.

Internal penetration testing identifies security gaps that could allow unauthorized access or escalation within your internal environment. These may include weak or reused passwords, unpatched software, misconfigured firewalls, lack of network segmentation, insecure file shares, and access control issues. 

The test also uncovers how far an attacker could move inside the network once they gain access to a single device or system. At Peneto Labs, we perform thorough manual and automated testing to ensure even the less obvious risks are discovered.

Any organization with an internal IT infrastructure—such as servers, workstations, shared drives, databases, and employee networks—should consider internal penetration testing. 

It’s especially critical for companies that handle sensitive customer data, manage remote teams, or operate under industry-specific compliance requirements. Whether you're a small business or a large enterprise, internal testing helps protect against threats that firewall and antivirus software alone may not detect.

Internal penetration testing simulates an attacker with access to the internal environment, whereas external testing mimics attacks from outside the network—like a hacker targeting exposed IPs or public-facing systems. 

Internal testing goes deeper into assessing employee-level access, domain privilege escalation, and internal lateral movement. Both testing types are essential, but internal penetration testing offers insights into how secure your organization truly is from within.

No, our internal penetration tests are designed to be non-disruptive. At Peneto Labs, we coordinate closely with your IT team to plan the testing process around your business hours and network availability. 

We avoid tests that could cause outages or affect performance unless specifically approved in advance. Testing is conducted safely, with careful consideration of critical assets and uptime requirements.

The duration of an internal penetration test depends on the size and complexity of your network environment. A small office setup may take 3 to 5 days, while larger organizations with multiple departments, locations, or domain controllers may require 1 to 2 weeks. During the initial consultation, we assess your infrastructure and provide a realistic timeframe based on scope and risk level.

We recommend performing internal penetration testing at least once a year. However, more frequent testing may be necessary if there are major infrastructure changes, employee restructuring, mergers, or system upgrades. 

Regular internal testing ensures that newly introduced systems or policy changes haven’t created new security gaps. It also helps maintain an up-to-date understanding of your internal risk exposure.

After completing the test, you’ll receive a detailed report outlining all discovered vulnerabilities, their risk levels, and the potential business impact. Each finding is explained in simple terms along with recommended remediation steps. 

The report also includes an executive summary for leadership, technical evidence for IT teams, and optional compliance mapping. At Peneto Labs, we also offer a debrief call to walk your team through the findings and help prioritize fixes based on risk severity.

Yes, the cost of internal penetration testing depends on the number of systems, operating systems, access levels required, and number of physical or virtual locations. Since internal tests simulate an attacker with network access, more endpoints and complexity will increase the effort and cost. We provide a customized quote based on your infrastructure layout.