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sica-fondt/knowledge/cyber-skills/skills/implementing-anti-ransomware-group-policy/references/api-reference.md
Claude 24f816b6a3
Consolidate 22 sibling repos into layered organism structure 
Place useful parts of the surrounding repos into sica-fondt by layer, per the
body model (Ada = membrane; brain/endocrine/capabilities/knowledge non-Ada):

- brain/        LLM reasoning + providers (dapr, hermes, MoMoA)
- capabilities/ REPRAG sidecars: hermes tools/skills, dapr tools, parallel
                dispatch, A51 channels, and the OSINT cluster
- knowledge/    LORAG corpus: 754 cyber-skills, agency personas, secure-coding,
                MITRE ATT&CK data
- reference/    defensive threat-reference (C3, shhbruh doc) + AdaYaml parser

License handling: AGPL sources (worldosint, advanced_evolution, mercury,
Reticulum) and GPL DeTTECT are SPEC-only clean-room/port descriptions — no
copyleft code copied. MIT/Apache/data parts copied as working trees.

Safety: shhbruh escape/persistence material and C3 covert-C2 kept as reference
only, not wired into the running organism. See CONSOLIDATION.md.

https://claude.ai/code/session_01UehUqEXXJJCsHoA4voCU5c
2026-06-10 06:53:01 +00:00

3.9 KiB
Raw Blame History

API Reference: Anti-Ransomware Group Policy

AppLocker PowerShell Cmdlets

Get Effective Policy

Get-AppLockerPolicy -Effective | Select-Object -ExpandProperty RuleCollections

Create AppLocker Rule

# Deny executables from AppData paths
New-AppLockerPolicy -RuleType Path -RuleNamePrefix "DenyAppData" `
  -Path "%USERPROFILE%\AppData\*" -Action Deny -User Everyone

Test AppLocker Policy

Test-AppLockerPolicy -Path "C:\Users\test\AppData\Local\Temp\malware.exe" `
  -XmlPolicy (Get-AppLockerPolicy -Effective -Xml)

AppLocker Event Log IDs

Event ID Log Description
8003 AppLocker/EXE Allowed executable
8004 AppLocker/EXE Blocked executable
8005 AppLocker/Script Allowed script
8006 AppLocker/Script Blocked script
8007 AppLocker/MSI Allowed installer
8008 AppLocker/MSI Blocked installer

Controlled Folder Access (CFA)

Enable CFA

Set-MpPreference -EnableControlledFolderAccess Enabled

CFA Modes

Value Mode Description
0 Disabled No protection
1 Enabled Block unauthorized modifications
2 Audit Log but do not block
6 BlockDiskModificationOnly Block disk-level changes only

Add Protected Folders

Add-MpPreference -ControlledFolderAccessProtectedFolders "C:\Finance"

Add Allowed Applications

Add-MpPreference -ControlledFolderAccessAllowedApplications "C:\Program Files\App\app.exe"

CFA Event IDs

Event ID Log Description
1123 Defender/Operational Blocked file modification
1124 Defender/Operational Audited file modification

Attack Surface Reduction (ASR) Rules

Enable ASR Rule

Add-MpPreference -AttackSurfaceReductionRules_Ids <GUID> `
  -AttackSurfaceReductionRules_Actions Enabled

ASR Rule Actions

Value Action
0 Disabled
1 Block
2 Audit
6 Warn

Key Anti-Ransomware ASR Rule GUIDs

GUID Rule
BE9BA2D9-53EA-4CDC-84E5-9B1EEEE46550 Block executable content from email
D4F940AB-401B-4EFC-AADC-AD5F3C50688A Block Office child processes
3B576869-A4EC-4529-8536-B80A7769E899 Block Office executable content creation
75668C1F-73B5-4CF0-BB93-3ECF5CB7CC84 Block Office code injection
D3E037E1-3EB8-44C8-A917-57927947596D Block JS/VBS downloaded executables
5BEB7EFE-FD9A-4556-801D-275E5FFC04CC Block obfuscated scripts
92E97FA1-2EDF-4476-BDD6-9DD0B4DDDC7B Block Win32 API from Office macros

ASR Event IDs

Event ID Log Description
1121 Defender/Operational ASR rule fired in block mode
1122 Defender/Operational ASR rule fired in audit mode

GPO Paths Reference

AppLocker

Computer Configuration → Policies → Windows Settings →
Security Settings → Application Control Policies → AppLocker

Controlled Folder Access

Computer Configuration → Administrative Templates →
Windows Components → Microsoft Defender Antivirus →
Microsoft Defender Exploit Guard → Controlled Folder Access

Attack Surface Reduction

Computer Configuration → Administrative Templates →
Windows Components → Microsoft Defender Antivirus →
Microsoft Defender Exploit Guard → Attack Surface Reduction

Network Restrictions

Computer Configuration → Administrative Templates →
Network → Lanman Workstation    (SMB settings)
Windows Components → Remote Desktop Services    (RDP settings)
Windows Components → AutoPlay Policies    (AutoPlay/AutoRun)

GPResult Verification

# Check applied GPOs
gpresult /r /scope:computer

# Generate HTML report
gpresult /h gpo_report.html

# Check specific policy RSoP
gpresult /z /scope:computer