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Secure File Redirection System with Process Integrity Handling

apriorit.com

Security

Information technology

Financial services

Challenges in Secure File Redirection for Restricted Processes

When implementing file redirection for data protection, restricted subprocesses (e.g., MS Word temporary files, Internet Explorer with Low Integrity Level) encounter access permission errors. This creates security vulnerabilities and workflow disruptions when handling downloaded files requiring elevated security contexts.

About the Client

A cybersecurity company specializing in enterprise data protection solutions with global operations

Key Goals for Enhanced File Redirection System

Research and document OS process integrity mechanisms
Implement secure file redirection that maintains access permissions across security boundaries
Ensure compatibility with Microsoft Office suite and legacy browsers
Develop administrator-configurable rules for dynamic permission management

Core System Capabilities

Rule-based file redirection engine
Process integrity level detection module
Dynamic ACL (Access Control List) adjustment system
Restricted subprocess handling framework
Security context-aware temporary file management

Technology Stack Requirements

Windows File System Minifilter Driver

Windows API (CreateProcess, CreateFile hooks)

Microsoft Office Interop Libraries

C++/C# for system-level programming

Windows Security Center API

System Integration Needs

Microsoft Office suite (Word, Excel, PowerPoint)
Windows Integrity Mechanisms (Mandatory Integrity Control)
Enterprise Active Directory security policies
Legacy browser security frameworks (Internet Explorer)

Critical System Attributes

Real-time permission adjustment with <50ms latency
Support for 10,000+ concurrent file operations
FIPS 140-2 compliant encryption for redirected data
99.99% system availability under load
Compliance with NIST SP 800-171 security standards

Expected Business Outcomes

Implementation will reduce data leakage risks by 78% through secure redirection, eliminate 95% of temporary file access errors in restricted processes, and improve compliance with regulatory requirements (GDPR, HIPAA). The solution will enable seamless secure collaboration while maintaining compatibility with legacy enterprise applications.