An incident response team is conducting live digital evidence acquisition on a compromised enterprise gateway server suspected of hosting an active in-memory exploit. Based on the RFC 3227 standard Order of Volatility, in what sequence should the forensic investigator capture the following digital evidence components, starting from the most volatile to the least volatile?
- 1Processor cache memory and CPU registers
- 2System RAM (physical random-access memory)
- 3Temporary swap files and virtual memory paging files
- 4Local NVMe solid-state drive partitions and event logs
- 5Remote offsite archival tapes and cloud backup repositories
Cevap
The correct acquisition sequence from most volatile to least volatile is: Processor cache memory and CPU registers → System RAM → Temporary swap files and virtual memory paging files → Local NVMe solid-state drive partitions and event logs → Remote offsite archival tapes and cloud backup repositories.
Digital forensics follows RFC 3227 guidelines for the Order of Volatility, prioritizing data collection from the most perishable sources to the most stable. CPU registers and cache are updated continuously within nanoseconds and must be gathered first if live CPU state is required. Physical RAM comes next, containing active processes and network sockets that evaporate upon loss of power. Temporary swap files and pagefiles reside on disk but fluctuate frequently with virtual memory management, placing them third. Local NVMe non-volatile disk partitions persist across reboots and are collected fourth. Finally, remote offsite backups and archival tapes are long-term offline media, representing the least volatile evidence source.
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Order of Volatility in Digital Forensics