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All Journal IJID (International Journal on Informatics for Development) MULTINETICS JISKa (Jurnal Informatika Sunan Kalijaga) Community Development Journal: Jurnal Pengabdian Masyarakat Vocational: Journal of Educational Technology
Kusuma, Ridho Surya
Unknown Affiliation
Humanities Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Languange, Linguistic, Communication & Media Library & Information Science Public Health

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Analysis of Conti Ransomware Attack on Computer Network with Live Forensic Method Umar, Rusydi; Riadi, Imam; Kusuma, Ridho Surya
IJID (International Journal on Informatics for Development) Vol. 10 No. 1 (2021): IJID June
Publisher : Faculty of Science and Technology, UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/ijid.2021.2423

Abstract

Ransomware viruses have become a dangerous threat increasing rapidly in recent years. One of the variants is Conti ransomware that can spread infection and encrypt data simultaneously. Attacks become a severe threat and damage the system, namely by encrypting data on the victim's computer, spreading it to other computers on the same computer network, and demanding a ransom. The working principle of this Ransomware acts by utilizing Registry Query, which covers all forms of behavior in accessing, deleting, creating, manipulating data, and communicating with C2 (Command and Control) servers. This study analyzes the Conti virus attack through a network forensic process based on network behavior logs. The research process consists of three stages, the first stage is simulating attacks on the host computer, the second stage is carrying network forensics by using live forensics methods, and the third stage is analysing malware by using statistical and dynamic analysis. The results of this study provide forensic data and virus behavior when running on RAM and computer networks so that the data obtained makes it possible to identify ransomware traffic on the network and deal with zero-day, especially ransomware threats. It is possible to do so because the analysis is an initial step in generating virus signatures based on network indicators.
Android Malware Threats: A Strengthened Reverse Engineering Approach to Forensic Analysis Kusuma, Ridho Surya; Putra , Muhammad Dirga Purnomo
JISKA (Jurnal Informatika Sunan Kalijaga) Vol. 10 No. 1 (2025): January 2025
Publisher : UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/jiska.2025.10.1.122-138

Abstract

The widespread adoption of Android devices has rendered them a primary target for malware attacks, resulting in substantial financial losses and significant breaches of user privacy. Malware can exploit system vulnerabilities to execute unauthorized premium SMS transactions, exfiltrate sensitive data, and install additional malicious applications. Conventional detection methodologies, such as static and dynamic analysis, often prove inadequate in identifying deeply embedded malicious behaviors. This study introduces a systematic reverse engineering framework for analysing suspicious Android applications. In contrast to traditional approaches, the proposed methodology comprises six distinct stages: initialization, decompilation, static analysis, code reversal, behavioral analysis, and reporting. This structured process facilitates a comprehensive examination of an application’s internal mechanisms, enabling the identification of concealed malware functionalities. The findings of this study demonstrate that the proposed method attains an overall effectiveness of 84.3%, surpassing conventional static and dynamic analysis techniques. Furthermore, this research generates a detailed list of files containing specific malware indicators, thereby enhancing the effectiveness of future malware detection and prevention systems. These results underscore the efficacy of reverse engineering as a critical tool for understanding and mitigating sophisticated Android malware threats.
Improvement of Learning Outcomes Using the Scramble Model with Interactive Video Media Anam, Khoirul; Kusuma, Ridho Surya; Sirajuddin, Suharti; Santosa, Eric
Vocational: Journal of Educational Technology Vol. 2 No. 2 (2026)
Publisher : Yayasan Pendidikan Dan Pengembangan Harapan Ananda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58740/vocational.v2i2.609

Abstract

The integration of active learning strategies with digital media has become increasingly essential in higher education to enhance student learning outcomes. This classroom action research investigated the effectiveness of the Scramble learning model supported by interactive video media in improving student achievement in the English Language Education Department at Universitas Negeri Makassar. The study was conducted in two cycles, each consisting of planning, action, observation, and reflection. A total of 32 undergraduate students participated, selected through purposive sampling. Data collection employed tests, observations, and reflective notes, while data analysis combined descriptive statistics with normalized gain (N-gain) to evaluate improvements in learning outcomes. The findings showed consistent progress across cycles. Average student performance improved significantly from the baseline measurement to the second cycle, demonstrating that the instructional strategy effectively supported knowledge acquisition. Moreover, the integration of Scramble activities with interactive video fostered greater classroom engagement, collaboration, and motivation. Students responded positively to the use of multimedia-based tasks, which provided a more dynamic and student-centered learning environment. The study concludes that the Scramble model, when combined with interactive video media, is a highly effective approach to improving learning outcomes in teacher education courses. Beyond raising academic achievement, this model also contributes to enhancing students’ critical thinking, active participation, and collaborative learning. These findings highlight the potential of technology-enhanced active learning models to address challenges in higher education and provide meaningful benefits for both teaching practice and student development.
Forensik Serangan Ransomware Ryuk pada Jaringan Cloud Kusuma, Ridho Surya
MULTINETICS Vol. 9 No. 2 (2023): MULTINETICS Nopember (2023)
Publisher : POLITEKNIK NEGERI JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/multinetics.v9i2.5234

Abstract

Technological advancements have made data a valuable asset; data protection and security are important from various threats such as damage, natural disasters, loss, and cybercrime. In recent years, ransomware attacks have become such a real threat that nowadays, the virus encrypts important data, then demands a financial ransom from the victim by threatening to publish, delete or withhold access. This study conducts network forensic investigations using live forensic methods in network traffic to find traces of perpetrators. This method requires precision and accuracy because data traffic speed is calculated per millisecond, then utilizes the Wireshark tool for data packet analysis. The stages begin with preservation, collection, examination, and research. The following are the investigation results, including the time of the attack, Ip Address, Mac Address, Port, Protocol, and phishing website URL addresses from infected computers. Based on the data obtained, this research is following the expected goals.
PELATIHAN PENYUSUNAN STANDART OPERATIONAL PROCEDURE (SOP) PENGELOLAAN SAMPAH DI KALURAHAN TEGALTIRTO BERBASIS 3R (REDUCE, REUSE, RECYCLE) Eliana, Desy; Yanuari, Nabela Putri; Kusuma, Ridho Surya; Saputra, Rizki Kurniawan; Nugroho, Rakmat Prasetyo Agung; Setyaputri, Khairina Eka; Sulistiyowati, Andita
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 3 (2024): Volume 5 No. 3 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i3.28088

Abstract

Sumber sampah tertinggi di Provinsi Daerah Istimewa Yogyakarta (DIY) adalah berasar dari sampah rumah tangga yaitu sebanyak 65, 15%. Tegaltirto menjadi salah satu wilayah yang mengalami dampak akibat penumpukan sampah yang tidak terorganisir dan tidak terkelola dengan tepat. Hal tersebut karena belum memiliki standar operasional prosedur dalam pengelolaan sampah akibat rendahnya pengetahuan petugas pengelola sampah dalam menyusun SOP. Oleh karena itu pelatihan penyusunan SOP menjadi hal yang urgnet untuk dilakukan di kalurahan Tegaltirto. Kegiatan pengabdian masyarakat ini dilakukan dengan persiapan penyusunan SOP, Pembentukan organisasi tim pengabdian masyarakat dan pengelola BumDes, perencanaan, penyusunan, dan evaluasi. Dampak dari kegiatan ini adanya perbedaan pengetahuan dan sikap penyusunan SOP Pengelolaan Sampah berbasis 3R. Peningkatan pengetahuan sebelum dan sesudah diberikan pelatihan penyususnan SOP pengelolaan sampah berbasis 3R sebesar 12.14% dan peningkatan sikap sebesar 10.34 %.
Co-Authors Desy Eliana Eric Santosa Imam Riadi KHOIRUL ANAM Nugroho, Rakmat Prasetyo Agung Putra , Muhammad Dirga Purnomo Rusydi Umar Saputra, Rizki Kurniawan Setyaputri, Khairina Eka Suharti Sirajuddin, Suharti Sulistiyowati, Andita Yanuari, Nabela Putri