Computer/Disk Forensics involves the systematic investigation and analysis of data from computers, storage devices, and digital media to uncover evidence that can be used in legal proceedings or cybersecurity incidents.
Processes
- Disk Imaging: Creating a bit-by-bit copy (forensic image) of a storage device to preserve the original data without altering it.
- File Recovery: Using specialized tools to recover deleted, hidden, or encrypted files that may contain relevant evidence.
- Metadata Analysis: Examining file metadata (e.g., timestamps, file properties) to reconstruct events, access patterns, and user actions.
- Timeline Reconstruction: Establishing a chronological sequence of events based on recovered data, timestamps, and system logs.
- Malware Detection: Identifying, analysing, and mitigating malicious software that may compromise the integrity of digital evidence.
Use Cases
- Recovering Deleted Files: Retrieving files that have been intentionally or unintentionally deleted from storage devices.
- Investigating Internet History: Analysing web browser cache, cookies, and history logs to reconstruct online activities.
- Identifying Unauthorized Access: Detecting and documenting unauthorized access attempts, including user account breaches or network intrusions.
- Proving Data Tampering: Verifying the integrity of data by comparing original and altered versions to determine if data has been manipulated or tampered with.
Computer/Disk Forensics is crucial in various scenarios, including criminal investigations, incident response, intellectual property theft, and regulatory compliance. It requires expertise in forensic tools, methodologies, and legal standards to ensure the integrity and admissibility of digital evidence in court.