RT Journal Article T1 Detecting Cryptojacking Web Threats: An Approach with Autoencoders and Deep Dense Neural Networks A1 Hernández Suárez, Aldo A1 Sánchez Pérez, Gabriel A1 Toscano Medina, Linda K. A1 Olivares Mercado, Jesus A1 Portillo Portilo, Jose A1 Avalos, Juan Gerardo A1 García Villalba, Luis Javier AB With the growing popularity of cryptocurrencies, which are an important part of day-to-day transactions over the Internet, the interest in being part of the so-called cryptomining service has attracted the attention of investors who wish to quickly earn profits by computing powerful transactional records towards the blockchain network. Since most users cannot afford the cost of specialized or standardized hardware for mining purposes, new techniques have been developed to make the latter easier, minimizing the computational cost required. Developers of large cryptocurrency houses have made available executable binaries and mainly browser-side scripts in order to authoritatively tap into users’ collective resources and effectively complete the calculation of puzzles to complete a proof of work. However, malicious actors have taken advantage of this capability to insert malicious scripts and illegally mine data without the user’s knowledge. This cyber-attack, also known as cryptojacking, is stealthy and difficult to analyze, whereby, solutions based on anti-malware extensions, blocklists, JavaScript disabling, among others, are not sufficient for accurate detection, creating a gap in multi-layer security mechanisms. Although in the state-of-the-art there are alternative solutions, mainly using machine learning techniques, one of the important issues to be solved is still the correct characterization of network and host samples, in the face of the increasing escalation of new tampering or obfuscation techniques. This paper develops a method that performs a fingerprinting technique to detect possible malicious sites, which are then characterized by an autoencoding algorithm that preserves the best information of the infection traces, thus, maximizing the classification power by means of a deep dense neural network. PB MPDI SN 2076-3417 YR 2022 FD 2022-03-22 LK https://hdl.handle.net/20.500.14352/72085 UL https://hdl.handle.net/20.500.14352/72085 LA eng NO Unión Europea. Horizonte 2020 DS Docta Complutense RD 27 abr 2025