Service

Infrastructure
Penetration Testing

> nmap -sV -sC -O --script=vuln 10.0.0.0/24_

You insure your building against fire even though the chance is small. The chance of a cyber attack is dramatically higher — yet most organisations have never had their infrastructure independently tested. We fix that.

The foundation everything else stands on.

Your infrastructure is the bedrock of your entire digital operation. Every application, every database, every user account, every email — all of it lives on infrastructure. If that foundation has cracks, nothing built on top of it is safe. And here's the uncomfortable reality: almost every organisation we test has cracks they didn't know about.

The reason is simple. Infrastructure evolves organically — a server added here, a firewall rule changed there, a legacy system nobody wants to touch. Over time, these small decisions compound into an attack surface that nobody fully understands. And what you don't understand, you can't defend.

An infrastructure penetration test gives you something priceless: clarity. A clear, prioritised map of exactly where your defences fail and precisely how to fix them. The cost of that clarity is a rounding error compared to the cost of the breach it prevents. Think of it this way — you wouldn't skip the structural survey when buying a building. Your digital infrastructure deserves the same diligence.

The Asymmetry You Can't Ignore

The average UK data breach costs £3.4 million. The average infrastructure penetration test costs a tiny fraction of that. This isn't a complex ROI calculation — it's basic risk management. The cost of testing is small. The cost of not testing is potentially existential. The smartest organisations aren't the ones with the biggest security budgets. They're the ones who understand this asymmetry and act on it.


Two perspectives, one complete picture.

A comprehensive infrastructure test examines your environment from both sides of the perimeter. Because a castle with thick walls but no guards inside isn't a fortress — it's a trap.

Perspective What We Simulate What We Find
External An attacker on the internet with no internal access. We test everything visible from outside your perimeter — exactly as an attacker would approach you. Exposed services, misconfigured firewalls, vulnerable VPN gateways, weak remote access portals, leaked credentials, subdomain takeovers, and internet-facing misconfigurations.
Internal A compromised workstation or rogue insider. We plug into your network (physically or via VPN) and attempt to escalate from zero access to domain administrator. Active Directory misconfigurations, Kerberoasting, NTLM relay attacks, insecure network shares, privilege escalation paths, lateral movement opportunities, and segmentation failures.

Why Internal Testing Matters

Most organisations focus exclusively on their perimeter. But 60% of breaches involve an insider or compromised credential. Once an attacker is inside — through phishing, a stolen laptop, or a compromised VPN — what stops them? If you've never tested that question, you don't know the answer. And neither does your board.


Every layer of your digital estate.

We don't just scan and report. We exploit, chain, and demonstrate real business impact — because a list of CVE numbers doesn't convey the same urgency as a screenshot of your CEO's mailbox.

Firewalls & Perimeter Devices
Firewall rule analysis, ACL testing, port filtering validation, VPN gateway security, and perimeter device configuration review. We verify that your perimeter actually stops what it claims to stop — because a misconfigured firewall is worse than no firewall. It gives you false confidence.
Active Directory & Identity
Kerberoasting, AS-REP roasting, password spraying, NTLM relay attacks, delegation abuse, Group Policy weaknesses, and trust relationship exploitation. Active Directory is the keys to your kingdom — and it's almost always misconfigured in ways that give attackers a shortcut to Domain Admin.
Privilege Escalation
Local privilege escalation via unpatched services, misconfigured permissions, insecure service accounts, credential harvesting, and token manipulation. We start as a standard user and systematically work our way up to the highest level of access your environment allows.
Lateral Movement
Network segmentation testing, VLAN hopping, pass-the-hash, pass-the-ticket, RDP pivoting, and SMB relay. We test whether compromising one system gives access to others — and how far across your network an attacker could travel from a single foothold.
Services & Protocols
DNS, SMTP, SNMP, SSH, RDP, SMB, FTP, database services, and web servers. Every exposed service is a potential entry point. We test for default credentials, known vulnerabilities, misconfigurations, and protocol-level weaknesses across your entire service landscape.
Network Segmentation
Can your development network reach production? Can a guest Wi-Fi user access internal servers? Can a compromised IoT device pivot into your corporate network? We test whether your segmentation actually segments — or just looks like it does on a diagram.

Structured chaos, delivered methodically.

Our infrastructure testing methodology combines industry frameworks with the creative, lateral thinking of experienced offensive operators. We follow the process — then we go off-script, because real attackers don't follow checklists.

Testing Phases
01_RECON # OSINT, DNS enum, port scanning, service fingerprinting
02_ENUMERATION # Service enumeration, share discovery, user harvesting
03_VULN_ANALYSIS # CVE mapping, configuration review, credential testing
04_EXPLOITATION # Active exploitation, credential attacks, service abuse
05_POST_EXPLOIT # Privilege escalation, lateral movement, persistence
06_REPORTING # CVSS scoring, attack narratives, remediation guidance

Frameworks & Standards

Our testing is grounded in recognised industry frameworks:

Standards We Follow
PTES # Penetration Testing Execution Standard
OSSTMM # Open Source Security Testing Methodology Manual
NIST SP 800-115 # Technical Guide to Information Security Testing
CREST # CREST Penetration Testing Guide
CIS Benchmarks # Centre for Internet Security configuration baselines
MITRE ATT&CK # Adversarial tactics, techniques & common knowledge

A pen test is annual. Attackers are daily.

Your infrastructure changes constantly — new servers deployed, firewall rules modified, employees joining and leaving, patches applied (or not). A penetration test captures a moment in time. For the other 364 days, you need eyes on the network.

For continuous infrastructure monitoring, see our SOCinaBox managed SOC service — 24/7 log analysis, threat detection, and incident response that watches your infrastructure around the clock. The pen test finds the weaknesses. The SOC ensures nobody exploits them between tests.

The Complete Picture

Combine annual infrastructure penetration testing with SOCinaBox for continuous threat monitoring. The pen test reveals what's possible. The SOC prevents it from actually happening. Together, they transform your security from a periodic checkbox into a living, breathing defence.


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When was your infrastructure last independently tested?

If you have to think about the answer, it's been too long. Every engagement starts with a free, no-obligation scoping call. We'll assess your environment and give you a clear, honest quote. The only thing more expensive than testing is not testing.