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All Journal Jurnal Simetris TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Jurnal Kajian Informasi & Perpustakaan InfoTekJar : Jurnal Nasional Informatika dan Teknologi Jaringan JOIN (Jurnal Online Informatika) Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Jurnal Informatika Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Jurnal SOLMA Conference SENATIK STT Adisutjipto Yogyakarta PROCESSOR Jurnal Ilmiah Sistem Informasi, Teknologi Informasi dan Sistem Komputer Angkasa: Jurnal Ilmiah Bidang Teknologi Compiler KACANEGARA Jurnal Pengabdian pada Masyarakat JISKa (Jurnal Informatika Sunan Kalijaga) Aviation Electronics, Information Technology, Telecommunications, Electricals, and Controls (AVITEC) Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat International Journal of Engineering, Technology and Natural Sciences (IJETS) SKANIKA: Sistem Komputer dan Teknik Informatika Journal of Applied Data Sciences Jurnal Informatika Medis (J-INFORMED)
Wintolo, Hero
Institut Teknologi Dirgantara Adisutjipto
Aerospace Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Library & Information Science Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary Other

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FORENSIC ANALYSIS OF TROJAN BACKDOOR (GACOR) ATTACKS ON PRIVATE CLOUD ENVIRONMENTS USING KUAD METHOD Hero Wintolo; Mohammad Faiq Badruz Zaman; Haruno Sajati; Imam Riadi; Anton Yudhana; Tri Rochmadi; Puspa Ira Dewi Candra Wulan
Jurnal Informatika Medis (J-INFORMED) Vol. 4 No. 1 (2026): Jurnal Informatika Medis (J-INFORMED)
Publisher : LPPM Universitas Muhammadiyah Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/im.v4i1.4196

Abstract

This research examines the impact of a Trojan Backdoor Attack, referred to as a Gacor attack, on the security and service integrity of a private cloud environment based on OwnCloud. The experimental environment was deployed ubuntu server 22.04 using OwnCloud version 10.15.2 and supported by a Mikrotik CCR1016-12G network device. Application level and network level activities were monitored through Apache web server logs and Snort Intrusion Detection System (IDS) version 2.9.15.1, respectively. The investigation adopts the knowledge Understanding assessment defence (KUAD) framework, which structures the analysis into initiation, acquisition, execution, mitigation, and digital evidence disposition stages. The attack scenario focuses on exploiting a file upload vulnerability in the OwnCloud service to deploy and execute a malicious PHP-based Trojan Backdoor. The results show that the Gacor attack demonstrates highly repetitive and centralized behaviour, originate from a limited number of highly active IP addresses. This behaviour exploits weaknesses in application security configuration and results in system takeover and service defacement. Correlation between log analysis and IDS alerts confirms 10 distinct attack events and reveals a structured intrusion pattern rather than random probing activity. The data visualization reveals a structured and centralized attack pattern, resulting in 100% defacement of the OwnCloud index page, which highlights the severe security risk faced by private cloud environments that lack a adequate file upload protection mechanisms. The findings demonstrate that the application of the KUAD method, when combined with log analysis and intrusion detection systems (IDS) is effective in identifying, analyzing, and systematically documenting Trojan Backdoor attacks in private cloud computing environments.
An ADDIE-Based Approach to Developing an Automatic Room Sprayer from Recycled Styrofoam Waste Rindi Nur Wulandari; Hero Wintolo; Adila Aviv Khairunisa; Parhan Parhan; Lasmadi Lasmadi; Emmanuel Endy Ismoyo; Rifky Adhi Pangestu
Compiler Vol 15, No 1 (2026): May
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/compiler.v15i1.3999

Abstract

Styrofoam waste constitutes an increasingly acute environmental problem in Indonesia due to its non-biodegradable nature and widespread accumulation across various sectors. This study presents the design, development, and evaluation of a proof-of-concept prototype of an Arduino microcontroller-based automatic room sprayer — designated Aero-Spray — that utilizes recycled styrofoam as the primary structural material, shaped into a miniature representation of an Airbus A320-200 aircraft. The system was developed following the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) instructional design model, which enabled a systematic and iterative development process. The hardware architecture integrates a PIR motion sensor, servo motor, aroma spray module, LCD display, LED indicators, and a buzzer, all coordinated by an Arduino microcontroller. Comprehensive functional testing demonstrated that the PIR sensor reliably detects human movement at distances of up to 6 meters across all evaluated angles (0°, 15°, and 30°). The average system response latency from motion detection to spray activation was 3.8 seconds, while spray interval accuracy attained 98.34% of the programmed value. System power consumption was measured at 1.025 W in idle mode and 4.025 W during active spraying, yielding a total estimated daily energy consumption of 17.42 Wh to 28.16 Wh. Fragrance endurance analysis indicated operational durations of 15 to 24.5 days per 60 mL volume, depending on occupancy levels. These results collectively demonstrate that the Aero-Spray proof-of-concept prototype operates reliably under normal indoor conditions, validating the feasibility of transforming styrofoam waste into a functional, value-added, and environmentally responsible automated device.
Descriptive Analysis and ANOVA Test with File Sending on Computer Networks Attacked with Rogue's Dynamic Host Configuration Protocol (DHCP) Hero Wintolo; Yuliani Indrianingsih; Wahyu Hamdani; Syafrudin Abdie
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol. 9 No. 2 (2023): June
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/jiteki.v9i2.26167

Abstract

The requirement for a computer that is physically connected to a computer network to be able to access existing resources on a computer network in the form of an IP address obtained statically or dynamically. On a static IP address, there are not many problems that arise because it is loaded directly into the computer, while for a dynamic IP address, security problems arise in the form of a dynamic IP address sharing server in the form of DHCP Rogue. The configuration that is added to the first router when the network is hit by a DHCP rogue attack is to configure the main router, in this case, the first router, and the switch used as a connecting device between computers. configuration on both switches is done by snooping trust which is useful for securing IP addresses to avoid IP attackers. This research was conducted to find out if a computer network with a dynamic IP address was attacked by sending files between computers. Files with the longest sending time indicate an attack on the computer network. The method used in this study is the ANOVA test with descriptive-based analysis. Based on the results of the analysis, it is known that the average file transfer time on networks affected by DHCP Rogue is higher than the average file transfer time on normal and mitigated networks, and the significant value of the ANOVA test results has a value of 0.004. In general, it can be concluded that there are differences in data transfer when the network is normal, the network is subject to DHCP Rogue, and the network has been mitigated with DHCP Rogue.
Co-Authors . Sudaryanto Addiwinoto, Gunawan Adila Aviv Khairunisa Aditya Wisnu Pratama Aditya, Reza Aditya, Reza Aji, Bimio Wahyu Amalia Farhati Aminuyati Anggit Tri Widiastuti Anggit Tri Widiastuti, Anggit Tri Anggraini Kusumaningrum Anggraini Kusumaningrum Anggraini Kusumaningrum Anggraini Kusumaningrum, Anggraini Anton Setiawan Honggowibowo Anton Yudhana Arief Dwi Nugroho ARIF HIDAYATULLAH Arwin Datumaya Wahyudi Sumari Astika AyuningTyas, Astika Astuti, Ellyana Mega Dewantri Bambang Sudibya Bambang Sudibya, Bambang Basuki Nugroho Susanto Basuki Nugroho Susanto, Basuki Nugroho Bimio Wahyu Aji Chris Tri Widyarto Christoporus Galih Pramudito Deny Hp., Fathul Fata Derry Purnamasari Derry Purnamasari, Derry Devia Tito Setyaningsih Dewi Retnowati, Nurcahyani Dwi Nugrahenny Dwi Nugrahenny, Dwi Dwi Nugraheny Dwi Nugraheny Dwi Nugraheny, Dwi Dwi Paradita, Lalu Septian Edi Triono Nuryatno Emmanuel Endy Ismoyo Emy Setyaningsih Evi Wahyuningsih Eviana Yulianti Saputri Fathul Fata Deny Hp. Fera Suprapti Friska Ayu Dhawara Galih Andita Sukma Gilang Wiratmaja Gregorius Ferdian F.D.Setyawan Gunawan Addiwinoto Habib Satrio Atmojo Handoko Widya Kusuma Harliyus Agustian Haruno Sajati Hasibuan, Piniel Romulia Ibrahim Saleh Ibrahim, Andi Ahmad Iswar Ida Ayu Putu Sri Widnyani Imam Riadi Irawaty, Mardiana Khairur Razikin Kusumaningrum, Anggaraini Lalu Septian Dwi Paradita Lalu Suwandi Yusuf Lasmadi Lasmadi Mega Fatimah Rosana Mohammad Faiq Badruz Zaman Muhamad Hafish Muhammad Imam, Muhammad Muhammad Rivai Murinto Murinto Ngadiyono Ngadiyono, Ngadiyono Nurcahyani Dewi Retnowati Nuryatno, Edi Triono Omara, Safik Parhan Parhan Piniel Romulia Hasibuan Pradana Nur Prasetya Pramudito, Christoporus Galih Prasetya, Pradana Nur Prasetyo Fendriyanto, Prasetyo Pratama, Aditya Wisnu Prayogi, Yogi Priyo Pujiastuti, Asih Puspa Ira Dewi Candra Wulan Qurniawan, Wawan Razikin, Khairur Rifky Adhi Pangestu Rindi Nur Wulandari Rindu Alriavindra Funny Rivcky Septianto RIYAN ANDRIYANTO Safik Omara Salam Aryanto Saleh, Ibrahim Saputri, Eviana Yulianti Septianto, Rivcky Setiawan Honggowibowo, Anton Seto, Moh.Bambang Haryo Setyaningsih, Devia Tito Setyoadi, Wangsit Sri Mulyani SUDARYANTO SUDARYANTO Sudaryanto Sudaryanto Suhirman Sukma, Galih Andita Sumarsono Sumarsono Sumarsono Sumarsono Suprapti, Fera SUWITO SUWITO Suwito Suwito Syafrudin Abdie Tri Rochmadi Wahyu Hamdani Wangsit Setyoadi Wawan Qurniawan Widyarto, Chris Tri Wiratmaja, Gilang Wiwik Handayani Yenni Astuti Yenni Astuti, Yenni Yogi Priyo Prayogi Yuliani Indrianingsih Yuliani Indrianingsih Yuliani Indrianingsih Yuliani Indrianingsih Yuliani Indrianingsih Yuliansah, Herman Yusuf, Lalu Suwandi Zulham Zulham Zuliana Zuliana Zuliana, Zuliana