SECURITY SOLUTION
Remote Access Security & Autonomous Remediation
Remote Access configurations silently drift—expired certificates, GPO misfires, firewall rule changes, NIC driver revisions. ReXGuardianCA detects drift with on-device AI, self-heals endpoints in seconds, and feeds audit-ready evidence to your SIEM—without any data leaving the device.
THE CHALLENGE
Configuration Drift Is a Silent Security Threat
Every enterprise VPN, ZTNA, and VDI deployment is built on a fragile stack of certificates, policies, firewall rules, and driver versions. These configurations change constantly—through Windows updates, GPO pushes, user actions, and simple time-based expiration. When drift goes undetected, the result is broken remote access, security posture gaps, and an avalanche of help desk tickets.
Traditional monitoring tools watch network traffic or device health, but they don’t inspect the remote-access client configuration itself. A ZTNA agent with an expired IdP signing certificate, a VPN profile with a clobbered routing table, a firewall rule that blocks UDP 500—these are the failure modes that cause outages, and they’re invisible to endpoint detection and response (EDR) and digital experience monitoring (DEX) platforms alike.
ReXGuardianCA was purpose-built to close this gap. It continuously monitors the five critical connectivity layers on every endpoint and uses on-device AI to detect drift, diagnose root causes, and autonomously remediate—all within the security boundary of the device itself.
CONTINUOUS MONITORING
Five Critical Connectivity Layers—Watched Continuously
The ReXGuardian AI Agent monitors the configuration layers that actually break remote access. Lightweight agents inspect each layer on every endpoint, flagging drift the moment it occurs.
Certificate Store
Monitors certificate expiration, chain validity, and trust anchors. Alerts days before certs expire and can trigger automated re-enrollment to prevent authentication failures across VPN and ZTNA connections.
Firewall Rules
Detects unauthorized changes to Windows Firewall rules that block VPN traffic—such as UDP 500/4500 or DTLS ports. Policy-controlled playbooks restore required rules and log the change.
Group Policy (GPO)
Tracks GPO-driven configuration changes that silently break remote access profiles. Identifies when a policy push corrupts VPN ProfileXML, disables required services, or alters routing tables.
Network Interface (NIC)
Monitors adapter status, driver versions, MTU settings, and DNS configuration. Detects driver regressions from Windows updates that cause VPN crashes, BSOD events, or adapter binding failures.
Credential Vault
Watches for expired or revoked credentials, SAML/OAuth token issues, and AD account lockouts that prevent ZTNA and VPN authentication. Surfaces root cause before users see cryptic error codes.
On-Device AI
Siamese networks detect configuration drift. LightGBM classifies root causes. Phi Silica translates findings into plain English. All inference runs locally—no data leaves the endpoint.
AUTONOMOUS REMEDIATION
Detect → Diagnose → Self-Heal → Evidence
ReXGuardianCA’s Edge-AI workflow closes the loop from detection to auditable resolution in under 5 seconds—keeping remote access reliable without sending data to the cloud.
Detect
Lightweight agents continuously watch cert store, firewall, GPO, NIC, and credential vault. Changes trigger instant analysis—no polling intervals, no missed drift.
Diagnose
On-device AI (ONNX + Phi Silica) correlates signals across layers, translates low-level errors into clear explanations, and forecasts failure windows before outages occur.
Self-Heal
Policy-controlled playbooks execute safe remediations: restart services, refresh credentials, repair VPN profiles, reset adapters. Every fix follows admin-defined rules—silent, prompted, or approval-required.
Evidence
Audit-ready logs and DPAPI-NG-encrypted snapshots are stored locally. Human-readable findings stream to ServiceNow, Splunk, or your SIEM—no raw logs, no PII, no data residency concerns.
SECURITY ARCHITECTURE
Zero-Trust by Design—From the Ground Up
ReXGuardianCA was architected for security teams, not just IT operations. Every design decision enforces zero-trust principles: least privilege execution, no kernel hooks, no listening ports, and a default-deny network posture. The agent becomes part of your security fabric without introducing new attack surface.
All AI inference runs locally using Windows ML and ONNX Runtime with DirectML acceleration. No telemetry, logs, or configuration data is ever transmitted to a cloud service. Remediation definition packs are EV code-signed, AES-encrypted, and delivered through a tamper-evident update catalog—the same security model as antivirus signature updates.
100% Local Inference
No SaaS. No log-shipping. All AI runs on-device under Windows 11.
DPAPI-NG Encryption
Configuration snapshots encrypted at rest. TLS 1.3+ for integration traffic.
RBAC & Audit Trails
Role-based access. Every action logged with timestamp, outcome, and rollback capability.
EV-Signed Packages
Remediation packs are code-signed and AES-encrypted. Tamper-evident delivery.
No Kernel Hooks
Uses official Windows APIs and NCSI signals. No drivers, no elevated attack surface.
Least Privilege
Constrained PowerShell runspaces. Remediations scoped to connectivity layers only.
SECURITY OPERATIONS
Fits Your Existing Security Stack
ReXGuardianCA feeds structured, human-readable security events into the tools your SOC already uses. Connectivity failures, drift detections, and remediation outcomes appear as first-class events in your SIEM—enabling correlation with firewall changes, identity events, and endpoint posture data.
SIEM
Splunk, Microsoft Sentinel, and generic syslog/webhook
ITSM
ServiceNow and FreshService with auto-ticket creation
Endpoint Mgmt
Intune, SCCM—deploy, configure, and report compliance
Collaboration
Teams and Slack alerts for network ops and SOC channels
19+ VPN/ZTNA/VDI
Cisco, Zscaler, Fortinet, Microsoft, Check Point, and more
Posture & EDR
Reads posture signals from Defender, CrowdStrike, and Intune compliance
COMPLIANCE
Built for Regulated Industries
ReXGuardianCA’s local-only architecture was designed from day one for enterprises where data residency, privacy, and regulatory compliance are non-negotiable. No data ever leaves the endpoint unless explicitly routed to your approved integrations.
✓ SOC 2 — Access controls, audit logging, and change management mapping available
✓ HIPAA — No PHI collection; configurable data capture scopes for healthcare environments
✓ GDPR / CCPA — Zero external telemetry; anonymization options; retention policies
✓ ISO 27001 — Security controls mapped to Annex A information security controls
✓ Zero Trust Architecture — Least privilege, default-deny, no kernel drivers, no open ports
✓ Data Residency — All inference and storage on-device; on-premises deployment option available
BUILT FOR SECURITY TEAMS
Security Stakeholders. One Solution.
CISO / VP Security
Reduce remote-access attack surface with autonomous drift detection. Demonstrate compliance-grade privacy to auditors—100% local inference, zero log-shipping, complete audit trails. Quantify ROI with measurable ticket reduction and MTTR improvement.
Security Architects
No kernel hooks, no listening ports, no elevated attack surface. EV-signed remediation packs with constrained PowerShell runspaces integrate cleanly into zero-trust architectures. Reads posture signals from Defender, CrowdStrike, and Intune.
SOC / Security Operations
Structured security events flow directly into Splunk, Sentinel, or your SIEM of choice. Correlate VPN authentication failures with firewall changes, identity events, and endpoint posture—all from a single, enriched data source.
Tickets auto-avoided (pilot)
L1 ticket reduction
Mean time to remediate
Annual savings @ 5K seats
Pilot results reflect limited environments; performance varies by configuration, network conditions, and policy.
Secure Your Remote Access Infrastructure
Schedule a security architecture review to see how ReXGuardianCA detects configuration drift, self-heals endpoints, and integrates with your SIEM—without any data leaving the device.