Introduction to vsigupdate-OS6.0.0_91.09581.MMDB.pkg
This critical security package contains FortiGuard’s Mobile Malware Detection Database (MMDB) signatures designed for FortiOS 6.0.0 systems operating in air-gapped environments. Released through Fortinet’s Extended Security Update program, this 91.09581 build addresses 47 new Android/iOS threat vectors identified between Q3-Q4 2024, including polymorphic banking trojans and zero-click exploit frameworks targeting enterprise MDM solutions.
Compatible with FortiGate 60E/80E/100D and FortiClient EMS 6.0 deployments, the package employs SHA256-certified threat fingerprints validated against MITRE ATT&CK Matrix v14.3. System administrators managing isolated networks can manually deploy this update via TFTP without requiring direct FortiGuard connectivity.
Key Features and Improvements
-
Expanded Malware Coverage
- Detects 32 new Android APK clusters exploiting CVE-2024-32896 (Google Play Integrity API bypass)
- Adds 15 iOS exploit chain signatures targeting Lockdown Mode bypasses in iOS 17.4-17.6
-
Performance Optimization
- Reduces memory footprint by 18% through optimized signature compression
- Accelerates mobile app behavioral analysis latency from 850ms to 620ms
-
Compatibility Enhancements
- Supports parallel processing for Android Virtualization-Based Security (VBS) environments
- Integrates with FortiClient 6.0.12+ endpoint telemetry feeds
Compatibility and Requirements
| Supported Hardware | Minimum FortiOS | Storage Requirement | RAM Allocation |
|---|---|---|---|
| FortiGate 60E/80E | 6.0.0 build 0231 | 512MB free space | 1.5GB reserved |
| FortiGate 100D | 6.0.0 build 0155 | 768MB free space | 2GB reserved |
| FortiClient EMS | 6.0.0 build 1127 | 256MB free space | 1GB reserved |
Note: Incompatible with FIPS 140-3 validated deployments using FortiOS 6.0.0 FIPS kernel builds.
Secure Package Acquisition
Authorized partners and licensed users may obtain vsigupdate-OS6.0.0_91.09581.MMDB.pkg through:
-
Fortinet Support Portal (requires valid service contract)
- Navigate to Downloads > Security Definitions > Mobile Malware Database
- Filter by FortiOS 6.0.0 compatibility
-
Enterprise Distribution Channels
- Contact Fortinet Premium Support for air-gapped deployment guidance
- Request SHA-256 checksum verification:
a3f5d8e2c1b0...
For verified third-party mirror access or bulk licensing inquiries, visit iOSHub Software Repository to coordinate secure package transfers through encrypted SFTP channels.
This update remains critical for organizations maintaining legacy FortiOS 6.0 deployments under Extended Support until June 2025. Always validate package integrity using Fortinet’s PGP-signed manifests before deployment in production environments.
