CERT-In — Empanelled since 2008 for government and critical infrastructure audits

Network Penetration Testing That Validates Your Real-WorldExposure

Full kill chain exploitation of your external and internal network infrastructure. Every finding confirmed exploitable with step-by-step proof-of-concepts. Powered by ShadowMap reconnaissance and 27,000+ network scopes of institutional experience.

6,700+Assessments
700+Clients
150+Team
2006Founded

Trusted by India's leading enterprises

ICICI Bank
HDFC
PhonePe
Swiggy
Asian Paints
Mahindra
L&T
Aditya Birla
Pernod Ricard
Yes Bank
DHL Express
Etihad Airways
Amazon Pay
Sephora
Groww
Pharmeasy
BillDesk
Jubilant Foods
ICICI Bank
HDFC
PhonePe
Swiggy
Asian Paints
Mahindra
L&T
Aditya Birla
Pernod Ricard
Yes Bank
DHL Express
Etihad Airways
Amazon Pay
Sephora
Groww
Pharmeasy
BillDesk
Jubilant Foods
STEP 01

Scope and Discover

We map your entire network attack surface using ShadowMap reconnaissance and client-provided asset inventories. Shadow IT, forgotten services, and exposed infrastructure are identified before a single packet is sent.

STEP 02

Exploit and Validate

Our team executes full kill chain penetration testing across your external perimeter and internal infrastructure. Every finding is manually exploited and documented with step-by-step proof-of-concepts.

STEP 03

Report and Remediate

You receive detailed technical reports with technology-specific remediation guidance. Multiple retesting rounds verify fixes. A formal Security Assessment Certificate is issued upon completion.

What Is Network Penetration Testing?

Network penetration testing is a structured security assessment where ethical hackers simulate real-world attacks against your network infrastructure to identify exploitable vulnerabilities before malicious actors do. It covers external-facing services, internal network segments, firewalls, servers, and network devices to validate whether an attacker could breach your perimeter, move laterally, and access sensitive data or critical systems.

What We Test: Full-Spectrum NetworkCoverage

Our network penetration testing goes far beyond automated port scanning. We assess every layer of your infrastructure with the same techniques real adversaries use.

External Penetration Testing

Internet-facing hosts, services, web servers, mail servers, DNS, VPN gateways, and exposed management interfaces.

Internal Network Assessment

Active Directory enumeration, lateral movement paths, privilege escalation, credential harvesting, and trust exploitation.

Firewall and Perimeter Devices

Firewall ruleset analysis, ACL bypass testing, segmentation validation, and perimeter device configuration review.

Server and OS Hardening

Operating system configuration review, patch validation, default credential testing, and service hardening assessment.

Wireless Infrastructure

WiFi authentication bypass, rogue access point detection, WPA/WPA2 cracking, and wireless segmentation validation.

Mail Server Security

SMTP relay testing, SPF/DKIM/DMARC validation, mail server configuration review, and email spoofing assessment.

Network Architecture Review

VLAN segmentation, DMZ design, inter-zone traffic flow analysis, and network topology security assessment.

Shadow IT and Unknown Assets

ShadowMap-powered discovery of forgotten hosts, unauthorized services, expired certificates, and exposed development environments.

Methodology

7 steps. Zero guesswork.

Every engagement follows this process through Lemon, our proprietary audit management platform.

Discovery
01

Reconnaissance and Asset Discovery

ShadowMap scans your external attack surface from Day 1, identifying shadow assets, exposed services, leaked credentials on the dark web, and DNS misconfigurations. Client-provided asset inventories are cross-referenced with ShadowMap findings to ensure nothing is missed. This intelligence-driven approach means all allocated engagement days are spent on actual testing rather than passive information gathering.

02

Port Scanning and Service Enumeration

Comprehensive port scanning identifies live hosts, open ports, running services, and version information. Service fingerprinting reveals the exact software versions, operating systems, and protocols in use. Lemon automatically correlates scan results against known vulnerability databases and determines the optimal testing approach based on institutional knowledge from thousands of prior network assessments.

03

Vulnerability Identification

Manual and automated techniques identify vulnerabilities across the network stack: default credentials, unpatched services, misconfigured protocols, weak encryption, exposed management interfaces, SNMP community string weaknesses, and Active Directory misconfigurations. Automated scanner results are validated manually to eliminate false positives. Only confirmed, exploitable issues proceed to the next phase.

Testing
04

Exploitation and Kill Chain Execution

Our team attempts full exploitation of identified vulnerabilities using real-world attack techniques. This includes credential attacks against Active Directory, service exploitation for initial access, privilege escalation on compromised hosts, lateral movement across network segments, and data access validation. Every successful exploitation path is documented with step-by-step proof-of-concepts showing exact commands, tools, and outputs.

05

Lateral Movement and Pivoting

From initial footholds, we attempt to pivot deeper into the network. This tests your segmentation controls, internal firewall rules, trust relationships between domains, and detection capabilities. We validate whether an attacker who compromises a single host can reach critical assets like databases, ERP systems, domain controllers, or cloud management consoles.

Delivery
06

Multi-Layer Review and Reporting

Every finding passes through our L1/L2/L3 review process. L1 auditors document findings with PoCs. L2 senior consultants validate exploitation paths, check for coverage gaps, and suggest additional test cases. L3 security architects perform final validation of impact assessments and report accuracy. Reports include executive summaries, detailed technical findings, network attack path diagrams, and technology-specific remediation guidance.

07

Remediation Support and Retesting

Multiple rounds of retesting are included in every engagement. Development and infrastructure teams can verify fixes iteratively as patches are applied. Our consultants conduct remediation walkthrough sessions with your IT team or third-party vendors to clarify findings and guide resolution. A formal Security Assessment Certificate is issued upon successful remediation.

"Security Brigade's structured approach through Lemon gave us complete visibility into the testing process. The three-layer review caught issues that our previous vendor missed entirely. Their reports were the first our developers could actually act on without a follow-up call."
CISO, Leading Indian BFSI Enterprise
Top 5 Private Sector Bank · Engaged since 2019

Read more client stories →

The Platform

Powered by Lemon

Most firms rely on individual tester skill. We built a platform that makes quality structural — informed by 6,700+ previous assessments.

lemon.securitybrigade.com/project/PRJ-2847
D
C
F
R
T
PROJECT PRJ-2847
Coverage Validation — acmecorp.com
94% covered
Endpoints
247 / 263
Parameters
1,847
Auth Flows
12 / 12
JS Routes
38 / 41
AI flagged 3 undiscovered endpoints
/api/v2/admin/export, /api/v2/billing/webhook, /internal/healthcheck
L1 Complete
L2 In Review
L3 Pending

Shadow Asset Discovery

Identifies hosts, subdomains, and services outside your known asset inventory that attackers will find.

Dark Web Credential Monitoring

Checks for leaked employee credentials from breaches, paste sites, and underground marketplaces.

Certificate and DNS Intelligence

Maps certificate transparency logs, DNS records, and zone configurations for enumeration opportunities.

Compliance-Ready

Audit-ready reporting for every framework

As a CERT-In empanelled firm, our reports are accepted by all major Indian and global regulators.

CERT-In
Mandatory network security audit for gov
RBI Cyber Security Framework
Network VAPT requirements for banks, NBF
SEBI Cyber Security Circular
Periodic network security assessments ma
PCI DSS
Quarterly external and annual internal n
ISO 27001
Regular technical vulnerability manageme
SOC 2
Network penetration testing supports Tru
BFSI
Banks, NBFCs, insurance companies, mutua
Manufacturing and Infrastructure
OT-adjacent IT networks, SCADA-connected
Technology and SaaS
Cloud-hosted infrastructure, container e
Healthcare and Pharma
EMR/EHR hosting infrastructure, telemedi
Retail and E-Commerce
PCI-scoped network environments, e-comme
Government and Public Sector
CERT-In mandated assessments for governm

Industries

700+ clients across verticals

Every type of application architecture and business logic pattern — tested.

BFSIICICI Bank, HDFC, Yes Bank, UTI MF, Edelweiss
Fintech & PaymentsPhonePe, Amazon Pay, Groww, BillDesk
ManufacturingMahindra, Asian Paints, L&T, Hindalco
Retail & ConsumerSwiggy, Sephora, Pernod Ricard, Jubilant
Aviation & LogisticsEtihad Airways, DHL Express, Shadowfax
HealthcareCloudNine, Pharmeasy, Wave Health

Deliverables

What you get

Reports for two audiences — executives who need the risk picture, and developers who need to fix the issues. With code-level guidance, not vague advice.

Executive Security Report

High-level risk overview, critical vulnerability summary, business impact analysis, and remediation prioritization for C-suite and board-level stakeholders.

Technical Assessment Report

Full vulnerability descriptions with step-by-step PoCs, annotated screenshots, exact commands used, CVSS severity ratings, and technology-specific remediation guidance.

Network Attack Path Diagrams

Visual documentation of exploitation chains showing how initial access led to lateral movement, privilege escalation, and critical asset compromise.

Real-Time Dashboard Access

Live Lemon dashboard showing findings as discovered, project timelines, issue status, remediation progress, and test case visibility per network node.

Remediation Walkthroughs

Direct sessions with your infrastructure team or third-party vendors to clarify findings, explain exploitation paths, and guide remediation implementation.

Retesting and Certificate

Multiple rounds of retesting included to verify fixes. A formal Security Assessment Certificate is issued once all critical and high findings are resolved.

FAQ

Common questions

Can't find what you're looking for? Talk to our team.

Contact us
What is the difference between network penetration testing and vulnerability assessment?+
Vulnerability assessment identifies and categorizes known vulnerabilities using automated scanning tools, while network penetration testing goes further by actively exploiting those vulnerabilities to demonstrate real-world impact. At Security Brigade, VA is predominantly internal-focused while penetration testing is predominantly external-focused. Penetration testing validates whether vulnerabilities are actually exploitable, chains multiple issues into attack paths, and demonstrates what an attacker could achieve, making it significantly more valuable for understanding real risk.
How long does a network penetration test take?+
A typical network penetration testing engagement takes 8 to 15 business days depending on the scope, including kickoff, reconnaissance, active testing, multi-layer review, and report delivery. Larger environments with hundreds of hosts, multiple network segments, or Active Directory forests may require extended timelines. Lemon tracks daily progress transparently so you always know exactly where the engagement stands.
Will network penetration testing disrupt our production environment?+
No, network penetration testing is conducted with controlled methodology to avoid service disruption. Automated scanning is orchestrated through Lemon with scheduled scan windows, advance notifications, IP controls, and pause/resume capability. Denial-of-service testing or high-risk exploitation attempts are only performed with explicit client authorization and during agreed maintenance windows. Our team has safely tested production environments for ICICI Bank, Larsen and Toubro, and hundreds of other enterprises without incident.
What access do you need from our team to start?+
Typical requirements include IP whitelisting for our testing infrastructure, an accurate asset inventory of in-scope hosts and network ranges, network architecture diagrams where available, firewall ruleset documentation for configuration review, and VPN access for internal testing. For Active Directory assessments, a low-privilege domain user account is provided to simulate an insider or post-compromise scenario. All artifacts are managed securely through Lemon with full traceability.
How is Security Brigade different from other network penetration testing vendors?+
Three structural advantages differentiate Security Brigade. First, ShadowMap provides intelligence-led reconnaissance from Day 1, identifying shadow assets and dark web credentials before testing begins. Second, Lemon, our proprietary audit management platform, ensures consistent methodology across all 27,000+ network scopes using institutional knowledge from nearly two decades of assessments. Third, every finding undergoes L1/L2/L3 expert review, eliminating the quality inconsistency that plagues the penetration testing industry. Additionally, 60 to 70 percent of our business comes from client referrals, the strongest trust signal in cybersecurity.
Do you test internal networks and Active Directory environments?+
Yes, internal network penetration testing and Active Directory assessments are a core part of our network security practice. We test for credential harvesting, Kerberoasting, AS-REP roasting, pass-the-hash, pass-the-ticket, Golden and Silver ticket attacks, ADCS template abuse, trust relationship exploitation, and privilege escalation to Domain Administrator. Our team holds CRTP and OSCP certifications specifically relevant to Active Directory attack paths. Multiple engagements have uncovered ADCS vulnerabilities capable of full domain compromise.
Is network penetration testing required for RBI and SEBI compliance?+
Yes, both RBI and SEBI mandate regular network security assessments. RBI's Cyber Security Framework requires banks, NBFCs, payment aggregators, and other regulated entities to conduct periodic vulnerability assessment and penetration testing of their network infrastructure. SEBI's Cyber Security and Cyber Resilience circular requires similar assessments for stock exchanges, depositories, and market intermediaries. Security Brigade is CERT-In empanelled since 2008, which is a prerequisite for auditors conducting these regulatory assessments.
What happens after vulnerabilities are found?+
Findings appear in your real-time Lemon dashboard as they are identified during the engagement, not just in the final report. Each vulnerability includes detailed proof-of-concepts, exact exploitation steps, and technology-specific remediation guidance. Multiple rounds of retesting are included so your infrastructure team can verify fixes iteratively. Our consultants also conduct remediation walkthrough sessions with your team or third-party vendors. A formal Security Assessment Certificate is issued once all critical and high findings are resolved.
Can you test cloud infrastructure and hybrid networks?+
Yes, our network penetration testing covers hybrid environments that span on-premises data centers, private clouds, and public cloud infrastructure including AWS, Azure, and GCP. We test VPN interconnects, cloud security group configurations, container network policies, and cross-environment trust relationships. For cloud-specific assessments such as AWS configuration reviews or container security testing, we also offer dedicated cloud security assessment services that can be combined with network penetration testing for comprehensive coverage.
How do you ensure complete coverage of our network scope?+
Coverage validation is built into our methodology at multiple checkpoints. ShadowMap identifies external assets your team may not have included in the scope. Lemon cross-references client-provided asset inventories against scan results and reconnaissance findings to flag discrepancies. AI-assisted analysis validates that every in-scope host and service has been tested. The L2 reviewer specifically checks for coverage gaps before the engagement can be marked complete. This multi-layered approach ensures no host, service, or network segment is accidentally missed.

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