Digital forensic analysis skill for investigating disk images, memory dumps, PCAPs, malware, and system artifacts. Use this skill whenever the user needs to perform forensic analysis on any digital evidence including disk images, memory dumps, network captures, suspicious files, or when investigating security incidents. Trigger this skill for any forensic investigation, incident response, malware analysis, or digital evidence examination tasks.
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Digital forensic analysis skill for investigating disk images, memory dumps, PCAPs, malware, and system artifacts. Use this skill whenever the user needs to perform forensic analysis on any digital evidence including disk images, memory dumps, network captures, suspicious files, or when investigating security incidents. Trigger this skill for any forensic investigation, incident response, malware analysis, or digital evidence examination tasks.
Digital Forensic Analysis
A comprehensive skill for performing digital forensic investigations across multiple evidence types and platforms.
When to Use This Skill
Use this skill when you need to:
Analyze disk images or file system artifacts
Investigate memory dumps for malicious activity
Examine network captures (PCAP files)
Perform malware analysis on suspicious files
Conduct incident response investigations
Recover deleted or hidden files
Analyze browser artifacts and user activity
Detect anti-forensic techniques
Perform threat hunting and file integrity monitoring
Forensic Investigation Workflow
Follow this systematic approach for forensic investigations:
1. Evidence Acquisition and Preservation
Before analysis begins:
Create forensic copies (never work on original evidence)
Calculate and document hash values (MD5, SHA1, SHA256)
# Examine disk structure
fdisk -l image.img
# Identify file system type
file image.img
# List partitions
parted image.img print# Mount read-only (critical!)
mount -o ro,loop image.img /mnt/forensics
File system analysis:
# For ext file systems
ddrescue image.img recovered.img
extundelete image.img --restore-all
# For NTFS
tools/ntfs-3g mount -o ro image.img /mnt/forensics
# File carving (recover deleted files)
foremost -i image.img -o ./recovered/
scalpel -c /etc/scalpel/scalpel.conf image.img
# Location: ~/.config/google-chrome/Default/# Key files: History, Cookies, Web Data, Local Storage# Extract browsing history
sqlite3 ~/.config/google-chrome/Default/History \
"SELECT url, title, last_visit_time FROM urls ORDER BY last_visit_time DESC LIMIT 100;"# Extract cookies
sqlite3 ~/.config/google-chrome/Default/Cookies \
"SELECT host_key, name, encrypted_value FROM cookies;"
Firefox:
# Location: ~/.mozilla/firefox/*.default/# Key files: places.sqlite, cookies.sqlite, formhistory.sqlite# Extract browsing history
sqlite3 ~/.mozilla/firefox/*.default/places.sqlite \
"SELECT url, title, visit_count FROM moz_places ORDER BY last_visit_date DESC LIMIT 100;"
Reporting and Documentation
Always document:
Evidence collection methods and timestamps
Hash values for all evidence files
Tools and versions used
Commands executed and their output
Findings and conclusions
Chain of custody records
Report structure:
# Forensic Investigation Report
## Executive Summary
- Brief overview of investigation
- Key findings
- Recommendations
## Methodology
- Tools used
- Procedures followed
- Timeline of analysis
## Evidence Analysis
- Detailed findings by category
- Supporting artifacts
- Screenshots and logs
## Conclusions
- Summary of findings
- Confidence levels
- Next steps
## Appendices
- Hash values
- Raw data extracts
- Tool outputs
Best Practices
Never modify original evidence - Always work on copies
Document everything - Maintain detailed logs of all actions
Verify tool integrity - Hash all forensic tools before use
Use write-blockers - Prevent accidental evidence modification
Validate findings - Cross-reference multiple data sources
Maintain chain of custody - Track evidence handling