Adventures in Antiforensics

WIP

Platform Independant Methods

Data Destruction

Shredding

• HDD vs SSD
  • Overwrite settings
    • SSD lifespan
    • HDD difficulty
    • Zeroing
    • Free space shredding
    • Limitations
      • File tips
        • Vendor-specific data destruction
      • bad sector remnants

Encrypted Data Nuking

• Encrypt data and to destory, shred the encryption headers and shutdown

Encryption

• Unencrypted data leaks
  • Out of band data leaks
    • Backup leaks
    • Cloud leaks

Key Management

• Key creation
  • Passphrases
    • Password managers
      • Where they are ok
      • Where they are not
    • Creating a passphrase manually
      • physical paper
        • +mind
    • Weaknesses
      • Third Party
      • KDF or Hashing algo
      • Breached passwords
      • Guessable passwords
• Key defence
  • Key Durability
  • Key protection
  • Key leaks

Whole disk

• Robustness of crypto
  • Investigate
    • window
    • linux
• virtual machines
• NO BITLOCKER
  • NO BITLOCKER UPLOAD TO M$ JESUS FUCK
• Tooling
  • shred encryption headers of disk and force shutdown
    • force fork to background, clear, and exit
      • linux
        • something like alias FORCEMETHEFUCKOFF='(setsid sudo bash /bin/KILLITWITHFIRE.sh && sudo shutdown now &); clear; exit'
          • where KILLITWITHFIRE.sh shreds the disks encryption headers with shred

Specific Data

• Unencrypted data leaks
• Unencrypted remnants

Symmetric

Assymetric

Internet Anonymity

Tor

• Settings
  • Relays
  • Tor browser
  • Hardware identifiers
  • Other leaks
• Internal to the os (bad)
  • pniux
• physical external to device (much better) for per-request tor hopping on a specific command/operation
  • openwrt?
    • kill switch
    • sanity checks

Opsec