Network Penetration Testing
Stress-test your boundaries and neutralize lateral corridors. Our elite Internal and External Network Penetration Testing services evaluate perimeter firewall logic, audit Active Directory domain controls, simulate post-breach lateral pivot strategies, and certify zoning integrity to isolate enterprise threat paths.
"Network Penetration Testing (Internal & External) is the technical validation of your corporate network's perimeter defenses and internal zoning controls. By simulating active threat actions, we identify exposed entry points and trace lateral escalation paths across Active Directory domains."
Securing a network requires addressing two distinct boundaries. The external boundary blocks unauthenticated perimeter scans targeting VPN gates and open service hosts. The internal boundary isolates local subnets, preventing a single user device compromise from escalating into a full domain takeover.
Our comprehensive network VAPT service evaluates your posture from both sides. Externally, we probe firewall logic, gateway portals, and TLS configurations for logical gaps. Internally, we simulate advanced local insider threats, executing LLMNR poisoning, GPO auditing, and lateral pivot testing. The outcome is a verified, hardened network blueprint that blocks threat propagation.
"Perimeter defense is the gatekeeper, but Active Directory is the keys to the castle. Hardening your domain pathways ensures that if the gatekeeper falls, the castle remain secure."
Boundary Validation: Stress-Testing External Gates and Active Directory Cores
Network Attack Surface Visualization
The High Cost of Network Vulnerability
Exposed Domain Controls
Unsecured Active Directory structures permit low-privilege accounts to execute LDAP queries, trace privilege relationships, and launch Kerberoasting exploits.
Insecure Local protocols
Reliance on legacy multicast name-resolution protocols (LLMNR/NBT-NS) leaves internal networks exposed to credential intercept and poisoned relays.
Perimeter Service Drifts
Staging environments, legacy VPN appliances, and unpatched boundary mail servers present unmonitored entry vectors directly from external networks.
The Evolving Network Threat Landscape
Derived from NIST, CIS & MITRE ATT&CK® Enterprise Baselines
Active Directory Domain Takeover
Exploiting weak domain policies, NTLM relaying, and AD misconfigurations to escalate to Domain Admin status.
Internal Lateral Pivot
Leveraging a single compromised workstation to scan internal segments and hop VLANs to reach production servers.
Legacy Service Exploitation
Exploiting unpatched remote execution vulnerabilities (such as EternalBlue or BlueKeep) on legacy servers.
Overly Broad Perimeter Exposure
Exposing databases, administration panels, and testing frameworks directly to external networks.
VPN Gateway Exploitation
Targeting outdated boundary VPN appliances with authentication bypass exploits to gain internal access.
Weak Account Credentials
Brute-forcing default or easy administrative credentials across network switches, routers, and host systems.
Man-in-the-Middle Spoofing
Exploiting local link protocols (LLMNR, NBT-NS) to intercept and capture local authentication hashes.
Insecure File Shares (SYSVOL)
Discovering exposed file shares and SYSVOL folders containing plaintext service credentials and configurations.
Missing Egress Filtering
Allowing open outbound connections on non-standard ports, enabling attackers to establish reverse shells and exfiltrate data.
Unencrypted Management Protocols
Capturing administrative credentials by sniffing legacy, unencrypted telnet, HTTP, or SNMPv1 traffic.
Why Network Penetration Testing is Critical
Maintaining a resilient perimeter and secure directory framework requires active simulated validation. Network penetration testing isolates exposed hosts, hardens Active Directory trust groupings, closes vulnerable local protocol layers, and locks boundaries against advanced lateral traversals.
Neutralize Lateral Threat Pivots
Identify and close insecure local protocols and cached memory secrets that adversaries leverage to migrate laterally across corporate subnets.
Harden Active Directory Cores
Stress-test domain GPOs, administrative groups, and trust linkages to block access escalation vectors leading to Domain Administrator takeover.
Secure External Boundary Portals
Purge unneeded listening ports, obsolete SSL cipher suites, and authentication gaps in VPN gateways to block perimeter breach entries.
Achieve Seamless Compliance Attestation
Comply with mandatory VAPT audit rules for major regulatory frameworks, including PCI DSS, SOC 2, HIPAA, and internal security guidelines.
Comprehensive Assessment Scope
Our combined network penetration testing scope covers the two fundamental pillars of network boundary resilience: comprehensive unauthenticated external boundary auditing and deep authenticated internal directory stress-testing.
Unauthenticated Testing
A rigorous external boundary stress-test simulating an outside attacker attempting to breach your perimeter gateways and exposed host interfaces without credentials.
Authenticated Testing
An exhaustive internal simulated insider threat assessment utilizing standard domain or local credentials to stress-test directory structures, VLAN configurations, and host boundaries.
Our Network Testing & VAPT Methodology
Our structured methodology combines deep reconnaissance mapping, controlled exploitation paths, and Active Directory trust auditing to guarantee absolute validation of your network state.
Discover &
Reconnaissance
We scan external perimeter IPs and map internal subnet nodes to construct an accurate baseline visualization of active hosts.
Vulnerability
Identification
We perform configuration audits on core firewalls, analyze local link protocols, and scan domain environments to locate structural vulnerabilities.
Exploitation &
Privilege Escalation
We physically simulate attack steps, performing relay poisoning, Kerberoasting, and token reuse to attempt Domain takeover.
Lateral Pivot
Simulations
We trace lateral movement corridors from low-privilege pods or hosts to verify segment isolation and secure database boundaries.
Verification &
Attestation
We run secondary confirmation scans to verify remediation success and provide an official CERT-In backed VAPT attestation.
What You Receive
We deliver actionable VAPT reports, Active Directory logical path graphs, network hardening playbooks, and certified attestations.
"Detailed findings of internal and external network tests, complete with verified proof-of-concepts, structural paths, and risk scores."
"Detailed findings of internal and external network tests, complete with verified proof-of-concepts, structural paths, and risk scores."
Why Choose Arridae
We combine deep directory-level audits with active perimeter and internal simulated testing to eliminate lateral pivot capabilities within your network corridors.
Expert CERT-In VAPT Specialists
Assessments directed strictly by CERT-In accredited network penetration testing specialists to ensure absolute directory and perimeter rigor.
Advanced Active Directory Audits
Deep-dive mapping of domain trusts, GPO settings, and administrative relationships to identify domain takeover corridors.
Simulated Insider Pivot Testing
We physically test internal boundaries from standard workstations to guarantee robust VLAN routing and isolation containment.
Zero Operational Downtime
All packet traversal, fuzzer scans, and domain exploits are mapped safely to prevent live network disruptions.
Comprehensive Device Coverage
Auditing capabilities covering Active Directory forests, network switches, core routers, host systems, and external VPN gateways.
PCI DSS & SOC 2 Compliance Proof
Receive certified network reports that satisfy merchant isolation controls and critical enterprise audits.
“Perimeter firewalls are a single lock on the front gate— internal segmentation and hardened Active Directory are what keep the vault secure when that gate is breached. ”
Fortify Your Perimeter and Secure AD Directories Today
Network Penetration Testing Q&A
Commonly asked questions about internal VAPT, Active Directory auditing, external boundaries, and our comprehensive security testing.