Analysis Environment

WildFire reproduces a variety of analysis environments, including operating system, to identify malicious behaviors within samples. Depending on the characteristics and features of the sample, multiple analysis environments may be used to determine the nature of the file. WildFire uses static analysis with machine learning to initially determine if known and variants of known samples are malicious. Based on the initial verdict of the submission, WildFire sends the unknown samples to analysis environment(s) to inspect the file in greater detail by extracting additional information and indicators from dynamic analysis. During dynamic analysis, WildFire observes the file as it would behave when executed within client systems and looks for various signs of malicious activities, such as changes to browser security settings, injection of code into other processes, modification of files in operating system folders, or attempts by the sample to access malicious domains.
WildFire Sample Analysis Workflow
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WildFire analyzes files using the following methods:
  • Static Analysis—Detects known threats by analyzing the characteristics of samples prior to execution.
  • Machine Learning—Identifies variants of known threats by comparing malware feature sets against a dynamically updated classification systems.
  • Dynamic Analysis—A custom built, evasion resistant virtual environment in which previously unknown submissions are detonated to determine real-world effects and behavior.
  • Bare Metal Analysis (WildFire Cloud analysis only)—A fully hardware-based analysis environment specifically designed for advanced VM-aware threats. Samples that display the characteristics of an advanced VM-aware threat are steered towards the bare metal appliance by the heuristic engine.
WildFire operates analysis environments that replicate the following operating systems:
  • Microsoft Windows XP 32-bit
  • Microsoft Windows 7 64-bit
  • Microsoft Windows 7 32-bit (Supported as an option for WildFire appliance only)
  • Microsoft Windows 10 64-bit (WildFire Cloud Analysis only)
  • Mac OSX (WildFire Cloud Analysis only)
  • Android (WildFire Cloud Analysis only)
  • Linux (WildFire Cloud Analysis only)
The WildFire public cloud also analyzes files using multiple versions of software to accurately identify malware that target specific versions of client applications. The WildFire private cloud does not support multi-version analysis, and does not analyze application-specific files across multiple versions.

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