Initial commit - 611 cybersecurity skills across all subdomains

skills/deobfuscating-powershell-obfuscated-malware/references/workflows.md

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+# PowerShell Deobfuscation Workflows
+
+## Workflow 1: Automated Multi-Layer Deobfuscation
+
+```
+[Obfuscated Script] --> [Identify Techniques] --> [Remove Tick Marks]
+                                                        |
+                                                        v
+                                              [Resolve Concatenation]
+                                                        |
+                                                        v
+                                              [Decode Base64 Layers]
+                                                        |
+                                                        v
+                                              [IEX -> Write-Output]
+                                                        |
+                                                        v
+                                              [Extract Final Payload]
+```
+
+## Workflow 2: AST-Based Analysis
+
+```
+[Script Input] --> [Parse AST] --> [Walk Expression Nodes] --> [Evaluate Expressions]
+                                                                       |
+                                                                       v
+                                                             [Reconstruct Commands]
+                                                                       |
+                                                                       v
+                                                             [Extract IOCs]
+```
+
+## Workflow 3: Dynamic Sandbox Deobfuscation
+
+```
+[Obfuscated Script] --> [Execute in Sandbox] --> [Capture ScriptBlock Logs]
+                                                          |
+                                                          v
+                                                 [Event ID 4104 Analysis]
+                                                          |
+                                                          v
+                                                 [Reconstruct Execution Chain]
+```
+
+### Steps:
+1. **Enable Logging**: Enable PowerShell ScriptBlock logging (Event ID 4104)
+2. **Execute**: Run obfuscated script in isolated sandbox
+3. **Collect**: Gather all ScriptBlock log entries
+4. **Reconstruct**: Assemble deobfuscated script from logged blocks
+5. **Extract**: Pull IOCs from the reconstructed clear-text script