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All Journal Bulletin of Electrical Engineering and Informatics Syntax Literate: Jurnal Ilmiah Indonesia ILKOM Jurnal Ilmiah JURNAL PENDIDIKAN TAMBUSAI JURIKOM (Jurnal Riset Komputer) JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) Jutisi: Jurnal Ilmiah Teknik Informatika dan Sistem Informasi Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) JATI (Jurnal Mahasiswa Teknik Informatika) Aiti: Jurnal Teknologi Informasi Jurnal Teknik Informatika (JUTIF) Jurnal Pendidikan dan Teknologi Indonesia Jurnal Indonesia : Manajemen Informatika dan Komunikasi IT-Explore: Jurnal Penerapan Teknologi Informasi dan Komunikasi Jurnal Informatika: Jurnal Pengembangan IT Jurnal Indonesia : Manajemen Informatika dan Komunikasi
Dian Widiyanto Chandra
Universitas Kristen Satya Wacana
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Social Sciences Other

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Anti-WebShell PHP Backdoor Scanner pada Linux Server Sopaheluwakan, Christian Ronaldo; Chandra, Dian Widiyanto
ILKOM Jurnal Ilmiah Vol 12, No 2 (2020)
Publisher : Teknik Informatika Fakultas Ilmu Komputer Univeristas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/ilkom.v12i2.596.143-153

Abstract

Backdoor or commonly also known as web shell is one of the malicious software that hackers use to maintain access systems that they have entered. Relatively few programs like Anti Web-Shell, PHP Backdoor Scanner circulating on the Internet, and can be obtained free of charge to deal with the issues above. But most of these programs have no actual database of signature behavior to deal with PHP backdoor / Shell nowadays. Then comes the contemporary Anti Web-Shell program that can deal with today's backdoor shell. This study uses an experimental method concerning previous similar studies and is implemented directly into the world of cyber security professional industries. By enriching the Regex dictionary signature and String Array Matching the actualized Anti Web-Shell program can detect more backdoor than similar programs that have existed in the past. The results of this study are in the form of a web application software in PHP extension. The application can minimize 100% of false positives and is twice as fast in scanning files because it is more specific in heuristic analysis scan.
Satellite imagery and machine learning for aridity disaster classification using vegetation indices Sri Yulianto Joko Prasetyo; Kristoko Dwi Hartomo; Mila Chrismawati Paseleng; Dian Widiyanto Chandra; Edi Winarko
Bulletin of Electrical Engineering and Informatics Vol 9, No 3: June 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1593.071 KB) | DOI: 10.11591/eei.v9i3.1916

Abstract

Central Java Province is one of provinces in Indonesia that has a high aridity risk index. Aridity disaster risk monitoring and detection can be done more accurately in larger areas and with lower costs if the vegetation index is extracted from the remote sensing imagery. This study aims to provide accurate aridity risk index information using spectral vegetation index data obtained from LANDSAT 8 OLI satellite. The classification of drought risk areas was carried out using k-nn with the Spatial Autocorrelation method. The spectral vegetation indices used in the study are NDVI, SAVI, VHI, TCI and VCI. The results show a positive correlation and trend between the spectral vegetation index influenced by seasonal dynamics and the characteristics of the High R.A. and Middle R.A. drought risk areas. The highest correlation coefficient is SAVI with a High R.A. amounted to 0.967 and Middle R.A. amounted to 0.951. The results of the Kappa accuracy test comparison show that SVM and k-nn have the same accuracy of 88.30. The result of spatial prediction using the IDW method shows that spectral vegetation index data that initially as an outlier, using the k-nn method, the spectral vegetation index data can be identified as data in the aridity classification. The spatial connectivity test among sub-districts that experience drought was done using Moran’s I Analysis.
Versioning Catcher Software (VCS) untuk mendeteksi Sensitive Information File Versioning pada Linux Server: Versioning Catcher Software (VCS) To Detect Sensitive Information File Versioning on Linux Server Rhenaldo Delfi Nugraha; Dian Widiyanto Chandra
AITI Vol 18 No 1 (2021)
Publisher : Fakultas Teknologi Informasi Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/aiti.v18i1.14-33

Abstract

Abstrak Website merupakan media yang sangat populer untuk menemukan informasi. Membangun sebuah website diperlukan banyak sekali komponen file yang nantinya disimpan di dalam server. Untuk meminimalisir terjadinya peretasan website, diperlukan keamanan dari sisi sistem dan sisi pengguna. Berdasarkan TOP 10 OWASP, salah satu kerentanan yang biasa muncul adalah bocornya informasi sensitif akibat dari file versioning yang berada dalam server. Demi meminimalisir terjadinya kebocoran informasi sensitif dari kerentanan tersebut, maka penulis membuat program Versioning Catcher Software (VCS) yang berfungsi untuk mendeteksi keberadaan file versioning tersebut. Tujuan dilakukannya penelitian ini adalah untuk melindungi dan mencegah bocornya informasi sensitif di server. Hasil pembahasan dari penelitian ini dapat digunakan untuk meminimalisir terjadinya peretasan server akibat dari file versioning berisi informasi sensitif yang tidak segera ditangani.
Implementasi dan modifikasi WebShell untuk monitoring serangan berbasis website: WebShell Implementation And Modification For Website-Based Attack Monitoring Paulus Miki Resa Gumilang; Dian Widiyanto Chandra
AITI Vol 18 No 1 (2021)
Publisher : Fakultas Teknologi Informasi Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/aiti.v18i1.54-68

Abstract

Backdoor is code commonly used by hackers to gain access to a web page illegally, backdoor or commonly called a web shell is currently used by hackers to attack a web page, but in handling attacks that use a web shell. not always detectable quickly it even takes months to realize a web page has embedded a web shell. To deal with this problem, we need an application that can quickly detect attacks carried out by embedding a web shell on a web page. The purpose of this research is to modify the existing web shell so that it can be monitored when it is used by hackers to attack a website. The monitoring process is carried out using a web page created by the author. The results of the discussion of this study are expected to reduce losses arising from attacks carried out by hackers using a web shell.
Analisis Pola dan Dampak Serangan Cryptojacking dengan Menggunakan Metode Analisis Dinamis dan Analisis Statis Mesakh Herdian Pamungkas; Dian Widiyanto Chandra
JURIKOM (Jurnal Riset Komputer) Vol 9, No 5 (2022): Oktober 2022
Publisher : STMIK Budi Darma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30865/jurikom.v9i5.5041

Abstract

In the current era of globalization, people's daily activities are highly dependent on technology. The development of this technology is certainly utilized by many different parties. In addition to taking advantage of the positive side, there are also parts that take advantage of the negative side. In this case it is like developing criminal software or what is commonly called cybercrime. One form of this crime is cryptojacking. Cryptojacking is the dark side of cryptocurrency mining and poses a threat to website visitors or end-users. This research was carried out with a 6-step method which resulted in the result that based on static and dynamic malware analysis, the installation of Crackonosh itself runs by replacing important files on the Windows system and abusing Windows Safe Mode to damage the order and defense of the Windows system
Implementasi Weighted Load balancing Per Connection Clasifier Dengan Teknik Failover Menggunakan Mikrotik RB941-2ND (Studi Kasus : Dinas Pemberdayaan Perempuan,Perlindungan Anak dan Keluarga Berencana Kabupaten Grobogan ) Lilik Husein Efendi; Dian Widiyantoko Chandra
JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) Vol 7, No 3 (2022)
Publisher : STKIP PGRI Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/jipi.v7i3.3048

Abstract

Telah dilakukan penelitian mengenai pengoptimalan pada penggunaan ISP yang tersedia di Kantor Dinas Pemberdayaan Perempuan, Perlindungan Anak Kabupaten Grobogan. Penelitian dilakukan dengan menggunakan teknologi Load balancing. Teknologi Load balancing merupakan teknologi untuk memaksimalkan pada penggunaan layanan internet ISP dan dapat digunakan untuk melakukan backup ketika terjadi masalah pada layanan internet yaitu dengan menggunakan metode pcc dengan Teknik failover. Metode pcc memiliki keunggulan yaitu memiliki ketahanan atau relibilitas yang baik ketika terjadi gangguan pada jaringan. Adapun pengoptimalan pada ISP tersebut menggunakan Mikrotik RB941-2ND dengan melakukan konfigurasi di winbox. Penelitian yang telah dilakukan meliputi : (1)  Tahapan pengujian perbandingan, (2) Pengujian jalur akses tracert ketika melakukan browsing, (3) Pengujian download pemutusan salah satu gateway. Perbandingan yang digunakan yaitu 2:1, 4:2, 10:5. Hasil yang diperoleh untuk masing-masing perbandingan yaitu 2:1 = 94,3 Mbps, 4:2 = 93,7 Mbps, dan 10:5=91,4 Mbps. Hasil yang paling optimum yaitu diperoleh 2:1. Hasil tersebut mampu maksimalkan koneksi internet yang ada, dimana teknik failover sendiri sebagai jalur backup apabila terjadi salah satu gateway mengalami down.
Perancangan Kunci Kontak Sepeda Motor Menggunakan E-SIM dengan Jaringan RFID Laurensius Phillipus Ramawijaya; Dian Widiyanto Chandra
Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Vol 7 No 1 (2023): JANUARY-MARCH 2023
Publisher : KITA Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/jtik.v7i1.687

Abstract

Nowadays, the motorcycle key is assumed to be too old-fashioned because it still uses physical metal, is easily eroded, and is loose. A driver's license (SIM) is a card that needs to be brought when driving. It used the driver as evidence that they have a driving permit from the police. On the other hand, identity cards such as SIMs already have RFID technology. However, this technology is rarely used correctly. This study aims to design a motorcycle security system using RFID and, likewise SIM card model as a motorcycle ignition key. The study showed that the system could perform or operate well. Motorcycle key using RFID as a dummy SIM makes people easier who are careless in putting their motorcycle keys.
Sistem Kipas Angin Otomatis Dengan Sensor Suhu dan Sensor Ultrasonik Berbasis Arduino Abyarake Adiyoga; Dian Widiyanto Chandra
Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Vol 7 No 1 (2023): JANUARY-MARCH 2023
Publisher : KITA Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/jtik.v7i1.700

Abstract

There are several factors that affect the room temperature, including the weather and the number of people who exceed the capacity. Hot temperature room can interfere our concentration. To overcome this, a tool is needed to decrease the room temperature such as a fan. However, people often forget to turn off the fan, as a result there will be the fan components quickly damage. Based on this case, this research aims to how to make an automatic fan system. By utilizing the DHT11 temperature sensor and ultrasonic sensor HC-SR04 and controlled by Arduino Uno. The result of test is that the fan will automatically turn on when the temperature reaches 300c or the number of people in the room reaches 10 people and the fan will turn off if it does not meet these conditions. With a system like this, it will extend the life of the fan and make it practical to turn on or turn off the fan.
Project Home Automation Control Menggunakan aplikasi Telegram Albert Lionel; Dian W. Chandra
Jurnal Pendidikan Tambusai Vol. 7 No. 1 (2023): April 2023
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (256.191 KB)

Abstract

Saat ini konsumsi listrik di Indonesia sangat tinggi, sehingga biaya yang harus dibayarkan masyarakat sangat tinggi. Terdapat beberapa faktor yang menyebabkan konsumsi listrik di Indonesia sangat tinggi salah satunya dikarenankan banyaknya aktivitas dan kesibukan yang ada di mayarakat yang menyebabkan masyarakat lupa untuk mengontrol penggunaan peralatan elektronik yang ada dirumah tangga. Oleh karena itu penelitian ini bertujuan untuk mengaplikasikan Home Automation Control untuk dapat mengontrol penggunaan peralatan elektronik rumah tangga dengan menggunakan terminal listrik pintar berbasis IoT. Terminal listrik pintar ini menggunakan mikrokontroler ESP32 sebagai komponen utamanya. Dikarenakan ESP32 memiliki fitur wifi sehingga dapat dikontrol secara jarak jauh asalkan terhubung dengan internet.
4G LTE NETWORK WALK TEST ANALYSIS USING ANDROID APPLICATION G-NET TRACK ON SWCU FTI BUILDING Yosefhin Rayaruna Yungka; Dian Chandra Widiyanto
Jurnal Teknik Informatika (Jutif) Vol. 4 No. 2 (2023): JUTIF Volume 4, Number 2, April 2023
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2023.4.2.727

Abstract

The poor performance of a cellular network can hinder student academic activities such as the difficulty of accessing online materials. Therefore, this research aims to obtain data on the quality of the 4G LTE cellular network in the SWCU FTI building area so that the data can be used as a reference for improving network quality. The parameters used for analysis are RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality) and SINR (Signal Interference to Noise Ratio) parameters. The results of measurements in 21 data collection points show that the RSRP parameter shows that the overall average of Telkomsel operators is -111.05 dBm and Indosat operators is -114.48 dBm and based on KPI standards, it is categorized as very poor signal quality. For the RSRQ parameter, the average overall measurement results for Telkomsel operators is -16.25 dB and Indosat operators are -19.57 dB and based on KPI standards, it is categorized as poor signal quality. For SINR parameters, the overall average of Telkomsel operators is -7.5 dB and Indosat operators is -7.8 dB and based on KPI standards, it is categorized as poor signal quality.
Co-Authors Abyarake Adiyoga Albert Lionel Auliya, Kharisma Xena Bagas Haryanto Dicky Anggara Sendiyono Haryanto, Bagas Joshua, Ivan Kristoko Dwi Hartomo Laurensius Phillipus Ramawijaya Laurentius Kuncoro Probo Saputra, Laurentius Kuncoro Probo Lilik Husein Efendi Mesakh Herdian Pamungkas Mila Chrismawati Paseleng Odi Pramadika Paulus Miki Resa Gumilang Purun, Elisa Stefano Franli Rahmadyanto, Eko Putra Rhenaldo Delfi Nugraha Rulof Baltwin Tallane Samuel Nugraha Sebastian, Danny Sopaheluwakan, Christian Ronaldo Sri Yulianto Joko Prasetyo Suryasatriya Trihandaru Sutarto Wijono Winarko, Edi Yosefhin Rayaruna Yungka