Digital Forensics Checklist

1. Preparation

Ensure proper authorization and legal requirements are met
Prepare forensic workstation and tools
Verify and calibrate forensic tools
Create an investigation plan
Prepare documentation forms and chain of custody documents
Assemble necessary hardware and software tools
Brief team members on the investigation scope and objectives
Conduct a risk assessment for the investigation

2. Identification

Identify potential sources of digital evidence
Document the scene (photographs, sketches, notes)
Identify running systems and network connections
Determine if volatile data collection is necessary
Identify and document all storage media
Label all items with unique identifiers
Create an inventory of all devices and media
Identify and document potential password protection or encryption

3. Collection

Prioritize order of volatile data collection
Collect volatile data from running systems if necessary
Document system time and compare to a reliable time source
Photograph device connections before disconnecting
Safely power down systems if required
Remove storage media using proper procedures
Create forensic images of all storage media
Verify integrity of forensic images (hash values)
Properly package and transport evidence
Maintain detailed chain of custody documentation

4. Examination

Create working copies of forensic images for analysis
Conduct file signature analysis
Recover deleted files and file fragments
Analyze file system metadata
Examine relevant logs (system, application, security)
Analyze internet history and cache
Examine email and messaging data
Analyze installed software and malware
Examine user accounts and login activity
Analyze network artifacts and configurations
Conduct keyword searches relevant to the investigation
Examine encrypted or password-protected data
Document all examination procedures and findings

5. Analysis

Correlate data from multiple sources
Establish timelines of relevant events
Identify patterns and anomalies in the data
Analyze user behaviors and activities
Reconstruct events based on available evidence
Formulate and test hypotheses
Identify gaps in the evidence and potential explanations
Consult with subject matter experts if necessary
Document analysis methodology and reasoning

6. Reporting

Prepare a comprehensive forensic report
Include executive summary for non-technical readers
Detail the investigation methodology
Describe all evidence examined
Present findings and their significance
Explain the analysis process and tools used
Include relevant screenshots and data extracts
Detail the chain of custody
List all personnel involved in the investigation
Provide recommendations based on findings
Have the report peer-reviewed if possible
Prepare for potential testimony or deposition

7. Presentation

Prepare clear and concise presentation materials
Adapt presentation for the intended audience (technical, legal, management)
Use visual aids to explain complex concepts
Be prepared to explain forensic methodologies
Anticipate and prepare for potential questions
Practice delivering the presentation
Ensure all presented information is accurate and supported by evidence

8. Review and Closure

Conduct a post-investigation review
Identify lessons learned and areas for improvement
Update forensic procedures based on the review
Securely store or return evidence as appropriate
Sanitize investigation media and tools
Update case management system
Close the investigation formally

Tip:

Always prioritize the preservation of evidence integrity throughout the forensic process. Use write blockers when examining original media, and always work with copies of the evidence to prevent accidental modification.

Note:

Digital forensics is a rapidly evolving field. Stay updated with the latest tools, techniques, and legal requirements.
Regular training and certification can help maintain and improve your forensic skills.