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Memory forensics is a powerful technique commonly adopted to investigate compromised machines and to detect stealthy computer attacks that do not store data on non-volatile storage. To employ this technique effectively, the analyst has to…

密码学与安全 · 计算机科学 2025-07-29 Andrea Oliveri , Davide Balzarotti

Timestamps play a pivotal role in digital forensic event reconstruction, but due to their non-essential nature, tampering or manipulation of timestamps is possible by users in multiple ways, even on running systems. This has a significant…

密码学与安全 · 计算机科学 2025-01-03 Céline Vanini , Jan Gruber , Christopher Hargreaves , Zinaida Benenson , Felix Freiling , Frank Breitinger

Today's computer systems come with a pre-installed tiny operating system, which is also known as UEFI. UEFI has slowly displaced the former legacy PC-BIOS while the main task has not changed: It is responsible for booting the actual…

密码学与安全 · 计算机科学 2025-05-12 Tobias Latzo , Florian Hantke , Lukas Kotschi , Felix Freiling

Today, a mobile phone is not just a phone but it is a computer that you can also use for calling someone. Besides, in criminal investigations the importance of evidence from the mobile phone is increasing as more and more phones are seized…

密码学与安全 · 计算机科学 2016-09-13 Rob Witteman , Arjen Meijer , M-T. Kechadi , Nhien-An Le-Khac

Fake videos represent an important misinformation threat. While existing forensic networks have demonstrated strong performance on image forgeries, recent results reported on the Adobe VideoSham dataset show that these networks fail to…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Tai D. Nguyen , Shengbang Fang , Matthew C. Stamm

While image forensics is concerned with whether an image has been tampered with, image anti-forensics attempts to prevent image forensics methods from detecting tampered images. The competition between these two fields started long before…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Eren Tahir , Mert Bal

Digital scans of analogue photographic film typically contain artefacts such as dust and scratches. Automated removal of these is an important part of preservation and dissemination of photographs of historical and cultural importance.…

计算机视觉与模式识别 · 计算机科学 2023-02-21 Daniela Ivanova , John Williamson , Paul Henderson

The pervasive nature of cloud-enabled big data storage solutions introduces new challenges in the identification, collection, analysis, preservation and archiving of digital evidences. Investigation of such complex platforms to locate and…

密码学与安全 · 计算机科学 2018-07-30 Yee-Yang Teing , Ali Dehghantanha , Kim-Kwang Raymond Choo

File fragment classification (FFC) on small chunks of memory is essential in memory forensics and Internet security. Existing methods mainly treat file fragments as 1d byte signals and utilize the captured inter-byte features for…

计算机视觉与模式识别 · 计算机科学 2023-04-17 Wenyang Liu , Yi Wang , Kejun Wu , Kim-Hui Yap , Lap-Pui Chau

Three-dimensional x-ray CT image reconstruction in baggage scanning in security applications is an important research field. The variety of materials to be reconstructed is broader than medical x-ray imaging. Presence of high attenuating…

计算机视觉与模式识别 · 计算机科学 2015-08-20 S. Degirmenci , Joseph A. O'Sullivan , David G. Politte

The exploitation of Deepfake techniques for malicious intentions has driven significant research interest in Deepfake detection. Deepfake manipulations frequently introduce random tampered traces, leading to unpredictable outcomes in…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Juan Hu , Xin Liao , Difei Gao , Satoshi Tsutsui , Qian Wang , Zheng Qin , Mike Zheng Shou

Forward and inverse models are used throughout different engineering fields to predict and understand the behaviour of systems and to find parameters from a set of observations. These models use root-finding and minimisation techniques…

计算工程、金融与科学 · 计算机科学 2023-08-08 Preslav Aleksandrov

Image forensics have attracted wide attention during the past decade. Though many forensic methods have been proposed to identify image forgeries, most of them are targeted ones, since their proposed features are highly dependent on the…

多媒体 · 计算机科学 2015-03-18 Haodong Li , Weiqi Luo , Xiaoqing Qiu , Jiwu Huang

In the era of the internet and smart devices, the detection of malware has become crucial for system security. Malware authors increasingly employ obfuscation techniques to evade advanced security solutions, making it challenging to detect…

密码学与安全 · 计算机科学 2024-04-04 S M Rakib Hasan , Aakar Dhakal

In digital forensics, file fragment classification is an important step toward completing file carving process. There exist several techniques to identify the type of file fragments without relying on meta-data, such as using features like…

密码学与安全 · 计算机科学 2025-04-15 Mustafa Ghaleb , Kunwar Saaim , Muhamad Felemban , Saleh Al-Saleh , Ahmad Al-Mulhem

Fundamental processes in digital forensic investigation, such as disk imaging, were developed when digital investigation was relatively young. As digital forensic processes and procedures matured, these fundamental tools, that are the…

计算机与社会 · 计算机科学 2020-01-03 Jiyoon Ham , Joshua I. James

Scene motion, multiple reflections, and sensor noise introduce artifacts in the depth reconstruction performed by time-of-flight cameras. We propose a two-stage, deep-learning approach to address all of these sources of artifacts…

计算机视觉与模式识别 · 计算机科学 2018-07-30 Qi Guo , Iuri Frosio , Orazio Gallo , Todd Zickler , Jan Kautz

The frequency and harmfulness of cyber-attacks are increasing every day, and with them also the amount of data that the cyber-forensics analysts need to collect and analyze. In this paper, we propose a formal analysis process that allows an…

密码学与安全 · 计算机科学 2019-07-17 Erisa Karafili , Matteo Cristani , Luca Viganò

We propose a new probabilistic method for unsupervised recovery of corrupted data. Given a large ensemble of degraded samples, our method recovers accurate posteriors of clean values, allowing the exploration of the manifold of possible…

机器学习 · 计算机科学 2020-07-01 Francesco Tonolini , Pablo G. Moreno , Andreas Damianou , Roderick Murray-Smith

This is the era of High Performance Computing (HPC). There is a great demand of the best performance evaluation techniques for the file and storage systems. The task of evaluation is both necessary and hard. It gives in depth analysis of…

操作系统 · 计算机科学 2013-12-09 Brijender Kahanwal , Tejinder Pal Singh