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Memory was captured from a system infected by ransomware and its contents was examined using live forensic tools, with the intent of identifying the symmetric encryption keys being used. NotPetya, Bad Rabbit and Phobos hybrid ransomware…

密码学与安全 · 计算机科学 2020-12-22 Simon R. Davies , Richard Macfarlane , William J. Buchanan

Existing anti-malware software and reverse engineering toolkits struggle with stealthy sub-OS rootkits due to limitations of run-time kernel-level monitoring. A malicious kernel-level driver can bypass OS-level anti-virus mechanisms easily.…

Extended Asynchronous DRAM Refresh (eADR) proposed by Intel extends the persistence domain from the Non-Volatile Memory (NVM) to CPU caches and offers the persistence guarantee. Due to allowing lazy persistence and decreasing the amounts of…

密码学与安全 · 计算机科学 2023-07-06 Jianming Huang , Yu Hua

Linux-based cloud environments have become lucrative targets for ransomware attacks, employing various encryption schemes at unprecedented speeds. Addressing the urgency for real-time ransomware protection, we propose leveraging the…

Fighting against computer malware require a mandatory step of reverse engineering. As soon as the code has been disassemblied/decompiled (including a dynamic analysis step), there is a hope to understand what the malware actually does and…

密码学与安全 · 计算机科学 2010-09-22 Eric Filiol

The amount of digital data is rapidly growing. There is an increasing use of a wide range of computer systems, from mobile devices to large-scale data centers, and important for reliable operation of all computer systems is mitigating the…

信息论 · 计算机科学 2018-03-06 Katina Kralevska

The SEAR Dataset is a novel multimodal resource designed to study the emerging threat of social engineering (SE) attacks orchestrated through augmented reality (AR) and multimodal large language models (LLMs). This dataset captures 180…

人工智能 · 计算机科学 2025-06-02 Tianlong Yu , Chenghang Ye , Zheyu Yang , Ziyi Zhou , Cui Tang , Zui Tao , Jun Zhang , Kailong Wang , Liting Zhou , Yang Yang , Ting Bi

This research recasts ransomware detection using performance monitoring and statistical machine learning. The work builds a test environment with 41 input variables to label and compares three computing states: idle, encryption and…

密码学与安全 · 计算机科学 2021-09-28 David Noever , Samantha Miller Noever

Considering the prospects of public key embedding (PKE) mechanism in active forensics on the integrity or identity of ciphertext for distributed deep learning security, two reversible data hiding in encrypted domain (RDH-ED) algorithms with…

密码学与安全 · 计算机科学 2022-09-01 Yan Ke , Minqing Zhang , Xinpeng Zhang , Yiliang Han , Jia Liu

Modern ransomware often generate and manage cryptographic keys on the victim's machine, giving defenders an opportunity to capture exposed keys and recover encrypted data without paying the ransom. However, recent work has raised the…

密码学与安全 · 计算机科学 2021-07-21 Alpesh Bhudia , Daniel O'Keeffe , Daniele Sgandurra , Darren Hurley-Smith

Sosemanuk is a new synchronous software-oriented stream cipher, corresponding to Profile 1 of the ECRYPT call for stream cipher primitives. Its key length is variable between 128 and 256 bits. It ac- commodates a 128-bit initial value. Any…

Ransomware attacks are increasing at an alarming rate, leading to large financial losses, unrecoverable encrypted data, data leakage, and privacy concerns. The prompt detection of ransomware attacks is required to minimize further damage,…

密码学与安全 · 计算机科学 2022-05-31 Jurijs Nazarovs , Jack W. Stokes , Melissa Turcotte , Justin Carroll , Itai Grady

Secret sharing allows a user to split a secret into many shares so that the secret can be recovered if, and only if, an authorized set of shares is collected. Although secret sharing typically does not require any computational hardness…

密码学与安全 · 计算机科学 2024-05-15 James Bartusek , Justin Raizes

Threat information sharing is considered as one of the proactive defensive approaches for enhancing the overall security of trusted partners. Trusted partner organizations can provide access to past and current cybersecurity threats for…

密码学与安全 · 计算机科学 2021-12-21 Hisham Ali , Pavlos Papadopoulos , Jawad Ahmad , Nikolaos Pitropakis , Zakwan Jaroucheh , William J. Buchanan

Virtualization has become more important since cloud computing is getting more and more popular than before. There is an increasing demand for security among the cloud customers. AMD plans to provide Secure Encrypted Virtualization (SEV)…

密码学与安全 · 计算机科学 2017-12-15 Zhao-Hui Du , Zhiwei Ying , Zhenke Ma , Yufei Mai , Phoebe Wang , Jesse Liu , Jesse Fang

Encryption-based attacks have introduced significant challenges for detection mechanisms that rely on predefined signatures, heuristic indicators, or static rule-based classifications. Probabilistic Latent Encryption Mapping presents an…

密码学与安全 · 计算机科学 2025-03-26 Mohammad Eisa , Quentin Yardley , Rafael Witherspoon , Harriet Pendlebury , Clement Rutherford

This paper puts forward a safe mechanism of data transmission to tackle the security problem of information which is transmitted in Internet. The encryption standards such as DES (Data Encryption Standard), AES (Advanced Encryption…

密码学与安全 · 计算机科学 2011-10-11 Shaik Rasool , G. Sridhar , K. Hemanth Kumar , P. Ravi Kumar

Cybercrime is one of the major digital threats of this century. In particular, ransomware attacks have significantly increased, resulting in global damage costs of tens of billion dollars. In this paper, we train and test different Machine…

密码学与安全 · 计算机科学 2022-11-29 Benjamin Marais , Tony Quertier , Stéphane Morucci

The increasing sophistication of modern cyber threats, particularly file-less malware relying on living-off-the-land techniques, poses significant challenges to traditional detection mechanisms. Memory forensics has emerged as a crucial…

密码学与安全 · 计算机科学 2026-02-23 Arslan Tariq Syed , Mohamed Chahine Ghanem , Elhadj Benkhelifa , Fauzia Idrees Abro

Ransomware has been predominantly a threat to Windows systems. But, Linux systems became interesting for cybercriminals and this trend is expected to continue. This endangers IoT ecosystems, whereas many IoT systems are based on Linux (e.g.…

密码学与安全 · 计算机科学 2024-03-27 Salko Korac , Leandros Maglaras , Naghmeh Moradpoor , Bill Buchanan , Berk Canberk