OpenAI’s ChatGPT (GPT-3.5, GPT-4) and other LLMs like BERT, Bard, etc. have sparked widespread debate due to their disruptive applications across various fields.
These LLM modules generate answers and solutions promptly based on comprehensive text-based training data and rapidly growing interest in the scientific community and society.
Cybersecurity researchers from several universities recently published an Arxiv paper evaluating ChatGPT’s impact, especially GPT-4, on digital forensics.
Here below, we have mentioned the name of the researchers and their respective universities:-
Mark Scanlon (Forensics and Security Research Group, School of Computer Science, University College Dublin, Ireland)
Frank Breitinger (School of Criminal Justice, University of Lausanne, Lausanne, Switzerland)
Christopher Hargreaves (Department of Computer Science, University of Oxford, United Kingdom)
John Sheppard (Department of Computing and Mathematics, South East Technological University, Waterford, Ireland)
ChatGPT for Digital Forensic
Cybersecurity researchers from several universities recently published an Arxiv paper evaluating ChatGPT’s impact, especially GPT-4, on digital forensics.
LLMs’ advancements have opened doors for new AI applications in digital forensics, focusing on several segments such as:-
Data Classification
Network Forensics
Malware Investigation
Facial Recognition
While LLMs have potential, they prioritize generating answers over correctness, leading to hallucinations and reasoning errors. The following are the risks that involve in digital forensics, so it requires caution when using GPT-4 and similar AI models:-
Biases/Errors
Legal concerns
Ethical concerns
Investigator over-reliance
Technical limitations
Methodology & Uses
OpenAI’s GPTs, a family of LLMs since 2019, form a framework for GAI apps. ChatGPT, built on GPT3.5 and GPT-4, initially used GPT-3.5 for free access but offers GPT-4 to paid Plus members.
Six representative areas were selected for digital forensic investigations to assess ChatGPT’s applicability, derived from existing uses like code generation and creative writing.
Digital forensic investigations require exceptional functionalities, often absent in current software, demanding rapid script creation in resource-limited live forensic scenarios, crucial for various cases.
Here below we have mentioned some of the cases:-
File Carving
RAID Disk Acquisition
Password Cracking
Memory Forensics – Recovering Encryption Keys
Besides digital forensic investigation, it can also be used for several other tasks, such as:-
Storyboarding
Synthetic Content
Character Profiles
Character Interests
Summary
Though ChatGPT has several potentials in digital forensic investigation, there are limitations impacting universality. Experiments were not exhaustive, and real-world complexity might differ.
The results depend on prompts and are not directly duplicatable due to the non-deterministic behavior of ChatGPT.