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Unveiling the Cybercrime Ecosystem: Impact of Ransomware-as-a-Service (RaaS) in Indonesia Budi wibowo; Luqman Hafiz; Taufik Hidayat
International Journal of Science Education and Cultural Studies Vol. 4 No. 1 (2025): IJSECS
Publisher : Sultan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58291/ijsecs.v4i1.320

Abstract

This study explores the rise of Ransomware-as-a-Service (RaaS) in Indonesia’s cybercrime ecosystem, highlighting its role as a significant digital security threat. RaaS lowers the technical barriers to executing ransomware attacks, enabling individuals with minimal expertise to launch sophisticated cyberattacks. Analyzing data from 2020 to 2024, this study identified Indonesia as a hotspot for RaaS-driven cybercrime in Southeast Asia due to low cybersecurity awareness and weak regulatory frameworks. Key findings reveal that government administration, healthcare, and finance are the most frequently targeted sectors due to their sensitive data and inadequate defense capabilities. Ransomware variants such as Luna Moth and WannaCry, dominate the malware landscape by employing tactics like phishing and exploiting outdated systems. These attacks result in severe socioeconomic consequences, including financial losses, operational disruptions, and reputational damage. This study contributes to our understanding of RaaS by examining its operational, economic, and regulatory dimensions in the Indonesian context. This underscores the urgent need for strengthened cybersecurity policies, public-private sector collaboration, and international cooperation to address transnational cybercrime. By providing actionable insights into attack patterns and mitigation strategies, this study aims to guide efforts to combat ransomware threats and enhance Indonesia’s digital resilience.
Cybersecurity Education Strategies Based on Open-Source Intelligence (OSINT) to Enhance Public Awareness Taufik Hidayat; Budi Wibowo; Andrie Yuswanto; Annisa Fathul Jannah
International Journal of Science Education and Cultural Studies Vol. 4 No. 2 (2025): ijsecs
Publisher : Sultan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58291/ijsecs.v4i2.422

Abstract

In today’s rapidly evolving digital landscape, cybersecurity threats are escalating in both frequency and complexity, which points to the urgent need for effective educational approaches to enhance public awareness. Open-Source Intelligence (OSINT), which leverages publicly available information, offers a practical framework for identifying and understanding cyber risks. This study proposes the design, implementation, and evaluation of an OSINT-based cybersecurity education strategy aimed at non-technical audiences. Employing a mixed-methods approach including literature review, module development, and surveys, this research measures the strategy’s effectiveness in improving cybersecurity comprehension. The results indicate that the OSINT-based educational approach significantly enhances participants’ understanding of cyber risks, yielding an average increase of 35% in comprehension scores. Furthermore, the integration of real-world OSINT demonstrations makes cybersecurity threats more tangible and personally relevant, thereby motivating proactive preventive behavior. In conclusion, incorporating OSINT into cybersecurity education provides an effective and scalable strategy for improving public awareness and resilience against modern digital threats.
Digital Signal Feature Extraction for Graph-Based Host Classification in VM Placement Taufik Hidayat; Lukman Medriavin Silalahi; Abdul Hamid
ZETROEM Vol 8 No 1 (2026): ZETROEM
Publisher : Prodi Teknik Elektro Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/ztr.v8i1.7559

Abstract

This study proposes a host classification methodology based on signal analysis and graph representation as a pre-placement stage for virtual machines (VM) in a cloud computing environment. The Bitbrains dataset is utilized as a source of time-series data representing CPU, memory, disk, and network utilization. Each parameter is modeled as a discrete signal and analyzed in both time and frequency domains. The analysis is conducted using a fixed observation window and frequency-domain transformation to capture workload characteristics across multiple resources. The Fourier transform results indicate the dominance of low-frequency components, suggesting gradual workload variations. Spectral energy is calculated and normalized to identify quantitative differences between host conditions. The results show that the overloaded class contributes 98.9% of the total spectral energy, while the underloaded and balanced classes contribute only 0.7% and 0.4%, respectively. The extracted features are then integrated using a four-node graph model that connects all resource dimensions into a single structure. The aggregated graph score is employed for dynamic percentile-based classification. From a total of 1,239 analyzed hosts, the proposed method classifies 421 hosts as overloaded, 409 as underloaded, and 409 as balanced. These findings demonstrate that spectral characteristics combined with graph integration provide a quantitatively structured and adaptive host segmentation mechanism, where the resulting classification can support VM placement decisions by identifying underloaded, balanced, and overloaded host conditions.
An Enhanced Informed-RRT* Integrating Bidirectional Exploration, Fast Sampling, and Local Path Optimization Heru Suwoyo; Taufik Hidayat; Yingzhong Tian; Julpri Andika; Andi Adriansyah
Journal of Embedded Systems, Security and Intelligent Systems Vol 7 No 2 (2026): June 2026
Publisher : Program Studi Teknik Komputer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/jessi.v7i2.12223

Abstract

Purpose – This study aims to improve the efficiency and path quality of Informed-RRT* for mobile robot path planning in complex environments by integrating bidirectional exploration, fast sampling, and local path optimization. Design/methods/approach – The proposed method follows a two-stage framework. In the initial exploration phase, two search trees are expanded bidirectionally using fast sampling to accelerate feasible path discovery. An ancestor-based parent selection mechanism based on the triangular inequality principle is then applied to improve local path quality and reduce inefficient rewiring. After an initial path is found, the algorithm switches to an informed optimization phase using ellipsoidal sampling while maintaining simultaneous two-tree expansion. The proposed method was evaluated in three two-dimensional static environments with different levels of complexity and compared with Fast-RRT* and Informed-RRT*. Performance was assessed using path cost, computation time, number of iterations, and Wilcoxon signed-rank testing. Findings – The results show that the proposed method consistently achieves lower path cost, shorter computation time, and fewer iterations than the baseline methods. Across simple to maze environments, the method reduces computation time by approximately 24–75% and improves path optimality by approximately 3.9–4.8%. Statistical testing confirms significant improvements in more constrained and maze-like environments. Research implications/limitations – The study demonstrates that combining accelerated exploration and local optimization can improve sampling-based path planning performance. However, the evaluation is limited to two-dimensional static environments and selected baseline methods. Originality/value – The proposed framework provides an enhanced Informed-RRT* approach that jointly addresses initial exploration efficiency, local path refinement, and informed optimization within a unified planning strategy.
DRUG SALES WEB-BASED INFORMATION SYSTEM AT DILA FARMA PHARMACY USING WATERFALL METHOD Agna Safera; Mohamad Ricky Martin; Taufik Hidayat; Indra Surya Permana
Perwira Journal of Science & Engineering Vol 2 No 2 (2022)
Publisher : Universitas Perwira Purbalingga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/pjse.v2i2.131

Abstract

The volume of data and information that must be handled makes manual processing impossible. A tool with a high degree of computation speed and data delivery is necessary for processing a massive volume of data. These instruments consist of hardware and software, Dila Farma Pharmacy is a pharmacy that still uses manual techniques to calculate the sale of medications, such as documenting pharmaceuticals and their pricing in a ledger. This manual technique requires considerable time and effort and is prone to error. This project aims to develop a medicine distribution system that can facilitate data processing computations. This study's objective is to build and develop a web-based application for processing drug data and comprehensive information on the sorts of pharmaceuticals used at Dila Farma Pharmacy.
INTEREST ANALYSIS OF COMPUTER ENGINEERING STUDENTS OF UNIVERSITAS WIRALODRA IN THE USE OF ELECTRONIC WALLETS Seno Wiji Prayitno; Taufik Hidayat
Perwira Journal of Science & Engineering Vol 2 No 2 (2022)
Publisher : Universitas Perwira Purbalingga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/pjse.v2i2.138

Abstract

Now technology is developing very rapidly. One of the fields that follow technological developments is in the financial sector. Financial technology (fintech) is an update in the financial sector that is centered on today's technology. One of the fintechs currently in development is a digital wallet (e-wallet). E-wallet is an application that stores nominal e-money and transactions can be carried out via mobile media by connecting the network to the internet. E-money is an electronic payment medium by first handing over a certain amount of money to the publisher, either directly or through the publisher's agents. For payment transactions by reducing the value of money on the e-money media. The study was conducted to analyze the interest of Computer Engineering students at Wiralodra University in using digital wallets as a modern technology. By distributing questionnaires to Computer Engineering students at Wiralodra University. The results of the media questionnaire were processed using multiple linear regression calculations. The results obtained from this study are students' interest in e-wallet with perceptions of convenience, efficiency and security.
Co-Authors Abdul Hamid Adrial Adrial Affan Nawly Tanjung Affy Khoiriyah Agna Safera Ahmad Gani Aji Nurrohman Ali Miftakhu Rosyad Ali Miftakhu Rosyad Alissa Eka Rahmawati Andi Adriansyah Andrie Yuswanto Andrie Yuswanto Andrie Yuswanto Angel Imannuel Annisa Fathul Jannah Azzery, Yasep Baiti Jannati Budi wibowo Cyntiya Laxmi Haura Dandi, Muhamad Dewi Yunita Sari Dewi Yunita Sari Diana Rusjayanti Diana Rusjayanti Dwi Mulyanto, Nur Fachri Alfianza Febriano Anggawa Rizky Fernando, Kinky He Xi Kang Hufrizatul Parida Ica Reisyya Y. P Imroatul Karimah Indra Surya Permana Ismail Ismail Ismail Ismail Jannatul Firdaus Nawang Wulan Julpri Andika Kalamullah Ramli Kinky Fernando Lukman Medriavin Silalahi Luqman Hafiz Luthfia Sodikin M Ihsan M. Kenanta Dhafin Mahardiko, Rahutomo Marwiyah Marwiyah Moh Mardiyana Mohamad Adnan Fauzi Mohamad Ricky Martin Mudrik Alaydrus Muhamad Baedowi Muhamad Dandi Muhammad Hamsah Nadim Ibrahim Nadim Ibrahim Najeem Olawale Adelakun Nida Pristyan Ramadhani Nur Afandi Nur Dwi Mulyanto Nurchamidah Nurchamidah Pao P. Ruaya Parastoo Alaei Roozbahani Pipit Puji Arti R. Deiny Mardian Rahmat Hidayat Rahutomo Mahardiko Rahutomo Mahardiko Rahutomo Mahardiko Ricky Martin, Mohamad Safera, Agna Seno Wiji Prayitno Shofa Lutfiah Fitri Sianturi Tigor Franky Devano Sigit Wibawa Sodikin, Luthfia Stephen Reader Suwoyo, Heru Syahril Sidiq Tineke Fatma Putri Tio Dwi Ananpasha tion sutiyono Tion Sutiyono Wahyu Pratama SJ Wiji Prayitno, Seno Yasep Azzery Yingzhong Tian Zaenudin Zaenudin Zeyn Saleh Ali