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methodology/post_engagement_cleanup.md

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+# Post-engagement Cleanup
+
+By following these best practices, you ensure that the system is returned to its original state as closely as possible, minimizing any risks or disruptions to the client.
+
+### 1. Documentation
+
+- **List of Changes**: Maintain a detailed log of all the changes you've made during the test, such as uploaded files, created accounts, or modified configurations. 
+- **Cleanup Checklist**: Develop a checklist based on the list of changes to ensure nothing is missed during cleanup.
+
+### 2. Data Removal
+
+- **Uploaded Files**: Delete any payloads, backdoors, or files that were uploaded during the test.
+- **Test Data**: Remove any data that was created during the test, like dummy users or database entries.
+
+### 3. Account De-provisioning
+
+- **User Accounts**: Disable or remove any user accounts that were created.
+- **API Tokens**: Revoke any API keys or tokens that were generated.
+
+### 4. Configuration Reversion
+
+- **System Changes**: Revert any system or network changes made during the test, such as firewall rules, routing changes, or altered services.
+- **Code Changes**: If any temporary code changes were made, ensure they are reverted to their original state.
+
+### 5. Log Review
+
+- **Logs**: Review logs to ensure all actions taken during the test are removed or annotated, so they are not mistaken for malicious activities later on.
+- **Incident Systems**: Ensure that any alerts or incidents generated during the test are closed or annotated in the Incident Management System.
+
+### 6. Notification
+
+- **Stakeholder Notification**: Notify all relevant stakeholders that the cleanup process has been completed and that the system is back to its original state.
+- **Time Synchronization**: Confirm that the time and date of completion align with what was agreed upon in the initial scope.
+
+### 7. Validation
+
+- **System Checks**: Conduct a final round of checks to ensure all systems are functioning as expected.
+- **Security Checks**: Run a quick vulnerability scan or checklist to ensure that the cleanup process didn't introduce new vulnerabilities.
+
+### 8. Final Report Update
+
+- **Cleanup Documentation**: Update the final report to include a section detailing the cleanup actions taken.
+- **Client Sign-off**: Obtain client acknowledgment that the cleanup has been completed to their satisfaction.
+
+### 9. Lessons Learned
+
+- **Review**: Conduct a lessons-learned meeting with your team to discuss what went well and what could be improved in the cleanup process for future engagements.
+
+### 10. Legal and Ethical Responsibilities
+
+- **Data Handling**: Ensure that all sensitive data obtained during testing is securely deleted.
+- **Compliance**: Ensure that all actions are in line with legal requirements and ethical guidelines.
+