Bias Analysis
Detected Bias Types
powershell_heavy
windows_tools
windows_first
Summary
The documentation page for ASIM security content in Microsoft Sentinel demonstrates a moderate Windows bias. Many examples and hunting queries focus on Windows-specific tools (e.g., rundll32.exe, PowerShell, Certutil, Exchange PowerShell Snapin, Windows System Shutdown/Reboot), and several analytic rules and queries are tailored to Windows attack techniques and binaries. There is little to no mention of Linux/macOS equivalents, and Windows-centric examples are presented first or exclusively in several sections.
Recommendations
- Add Linux/macOS-specific examples and hunting queries where relevant, such as detection rules for common Linux attack tools (e.g., bash scripts, cron jobs, SSH brute force, Linux-specific malware).
- Include analytic rules and queries for Linux/macOS process and file activity, such as suspicious sudo usage, modifications to /etc/passwd, or use of common Linux persistence techniques.
- Balance the presentation order by alternating Windows and Linux/macOS examples, or clearly label which examples apply to which platforms.
- Where Windows-specific tools are mentioned (e.g., PowerShell, rundll32.exe), provide Linux/macOS analogs (e.g., bash, python, systemd) if applicable.
- Explicitly state platform applicability for each rule/query to help users understand coverage.
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