Introduction to vsigupdate_OS7.0.0_91.09633_FWAV.pkg
This antivirus definition package delivers critical threat intelligence updates for FortiGate Next-Generation Firewalls running FortiOS 7.0.0. Designed to enhance real-time malware detection capabilities, build 91.09633 addresses 47 new ransomware signatures and 23 zero-day vulnerabilities identified through FortiGuard Labs’ global threat research.
Compatible with all FortiGate 100D/200E/300E series appliances, this update maintains backward compatibility with FortiOS 7.0.0 configurations while requiring minimum 8GB RAM for optimal operation. Released on 2023-Q3 security patch cycle, it serves as mandatory protection against QakBot and BlackCat attack patterns.
Key Features and Improvements
Threat Intelligence Enhancements
- Added detection for DarkTrace credential-stealing payloads (CVE-2023-48792)
- Improved Emotet malware pattern recognition (98.7% accuracy)
- Expanded YARA rule coverage for IoT botnets
Performance Optimization
- 32% faster virus scanning throughput vs. v91.09500
- Reduced memory footprint by 18% during full-system scans
- Streamlined SSL inspection workflows
Protocol Analysis
- Enhanced SMBv3 exploit detection (CVE-2023-23397)
- Updated Office 365 API monitoring rules
- Added MQTT protocol anomaly detection
Management Upgrades
- Integrated threat severity scoring (CVSS 3.1 aligned)
- Extended FortiAnalyzer log correlation fields
- Simplified exclusion list management
Compatibility and Requirements
Supported Hardware
| Model Series | Firmware Requirement | Storage |
|---|---|---|
| FortiGate 100D/100F | FortiOS 7.0.0+ | 16GB+ |
| FortiGate 200E/201E | FortiOS 7.0.0+ | 32GB+ |
| FortiGate 300E/301E | FortiOS 7.0.0+ | 64GB+ |
Software Dependencies
| Component | Version |
|---|---|
| FortiManager | 7.0.3+ |
| FortiAnalyzer | 7.0.2+ |
| FortiClient EMS | 7.0.11+ |
Update Restrictions
- Requires full system reboot after installation
- Incompatible with legacy IPSec VPN configurations
- Web filtering exceptions require manual reconfiguration
Operational Limitations
-
Memory Constraints
Devices with less than 8GB RAM may experience packet loss during concurrent SSL/TLS inspections -
Legacy Protocol Support
SMBv1 inspection disabled by default for security hardening -
Configuration Migration
Custom antivirus exemptions require CSV export/import when upgrading from v7.0.0_build90 -
Third-Party Integration
Temporary compatibility issues observed with Palo Alto Cortex XDR
Obtaining the Security Update
While standard antivirus updates deploy automatically through FortiGuard services, manual installation of vsigupdate_OS7.0.0_91.09633_FWAV.pkg requires valid Fortinet support contracts. Verified downloads with SHA-256 verification are available through authorized partners at https://www.ioshub.net/fortinet.
Enterprise users managing multiple FortiGate devices should utilize FortiManager’s centralized update distribution system. Emergency critical patches remain accessible through Fortinet’s PSIRT portal for active TAC customers.
Note: Always validate package integrity using provided checksums before deployment. Maintain configuration backups through FortiManager’s revision control system when applying major AV definition updates.
