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https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git
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mukul975
c47eed6a64
- Fix 25 shell=True subprocess calls with list-based commands - Fix 49 verify=False in defensive skills (env-var override) - Add timeout to 231 HTTP/subprocess/socket calls - Fix 6 SQL injection patterns with whitelist validation - Replace 8 __import__() with standard imports - Remove 701 unused imports across 442 files - Add authorized-testing disclaimers to all offensive skills - Complete 11 incomplete skill directories - Expand 10 stub SKILL.md files with full content - Fix 2 YAML parse errors in frontmatter - Fix 5 pre-existing syntax errors - Convert 22 hardcoded paths/ports to environment variables - Back up 21 redundant skill pairs to .bak - Fix 2 global declaration errors - 724/724 skills with full folder anatomy (SKILL.md + agent.py + api-reference.md + LICENSE) - 0 compile errors across all 724 agent.py files
3.9 KiB
3.9 KiB
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