Abstract

The world's technological development is very fast, especially smartphones with a variety of functions and applications, including instant messaging like MiChat in Indonesia. MiChat offers features like “People Nearby”, “Chat Trends”, “Moments”, and “Message Tree” for an interactive chat experience. However, these advances have also triggered negative impacts such as online prostitution. The research aims to find digital evidence of online prostitution in MiChat using the method of the National Institute of Justice (NIJ) which includes Identification, Collection, Examination, Analysis, and Reporting. The identification involves devices such as MOBILedit Forensics Express, Autopsy, and Systools SQLite Viewer. The results of this research found 1 image of transfer evidence, recovered 19 deleted conversation texts, and found 2 perpetrator contacts through user ID number analysis using Systools SQLite Viewer. It is hoped that in the future this research can be used as a reference for investigating online prostitution cases for other researchers in the future.

References

• A. C. N. Hidayah and I. Riadi, “Digital Forensic Analysis on Mobile-based MiChat Services using National Institute of Standard Technology Method,” Int. J. Comput. Appl., vol. 184, no. 31, pp. 49–55, Oct. 2022, doi: 10.5120/ijca2022922387.
• A. Andria, “Forensik Digital Sistem Informasi Berbasis Web,” JAMI J. Ahli Muda Indones., vol. 2, no. 2, pp. 33–44, Dec. 2021, doi: 10.46510/jami.v2i2.73.
• C. Indonesia, “Tujuh Muncikari Prostitusi Online Ditangkap di Surabaya,” Trans Media, 2020. https://www.cnnindonesia.com/nasional/20200515113308-12-503655/tujuh-muncikari-prostitusi-online-ditangkap-di-surabaya (accessed May 17, 2023).
• D. Yuliana, T. Yuniati, and B. Parga Zen, “Analisis Forensik Terhadap Kasus Cyberbullying Pada Instagram dan Whatsapp Menggunakan Metode National Institute of Justice (NIJ),” Cyber Secur. dan Forensik Digit., vol. 5, no. 2, pp. 52–59, Jan. 2023, doi: 10.14421/csecurity.2022.5.2.3734.
• G. Pawitradi and I. K. Gede Suhartana, “Acquisition of LINE Digital Social Media Evidence Using the National Institute of Justice (NIJ) Method,” JELIKU (Jurnal Elektron. Ilmu Komput. Udayana), vol. 8, no. 2, p. 129, Jan. 2020, doi: 10.24843/JLK.2019.v08.i02.p04.
• H. A. Timor and I. Riadi, “Web Forensics on Tiktok Services using National Institute of Standards and Technology Method,” Int. J. Comput. Appl., vol. 185, no. 36, pp. 40–46, Oct. 2023, doi: 10.5120/ijca2023923157.
• H. Herman, A. Yudhana, and F. Anggraini, “Akuisisi Bukti Digital Tiktok Berbasis Android Menggunakan Metode National Institute of Justice,” vol. 10, no. 1, pp. 89–96, 2023, doi: 10.25126/jtiik.20231016416.
• I. Gilbert Rian Mailangkay, E. Zakharia, A. Hadi, T. Informatika, and S. Palangka Raya, “Komparasi Analisis Bukti Digital Tiktok Lite Menggunakan Metode National Institute of Justice,” J. Sains Komput. Inform. (J-SAKTI, vol. 6, no. 2, pp. 661–670, 2022, doi: 10.30645/j-sakti.v6i2.
• I. P. D. I. Putra and I. K. G. Suhartana, “Cyberbullying Analysis on WhatsApp Messenger Using the National Institute of Justice (NIJ) Method,” JELIKU (Jurnal Elektron. Ilmu Komput. Udayana), vol. 9, no. 4, p. 501, May 2021, doi: 10.24843/JLK.2021.v09.i04.p07.
• I. Riadi, S. Sunardi, and S. Sahiruddin, “Analisis Forensik Recovery pada Smartphone Android Menggunakan Metode National Institute Of Justice (NIJ),” J. Rekayasa Teknol. Inf., vol. 3, no. 1, p. 87, Jun. 2019, doi: 10.30872/jurti.v3i1.2292.
• Jeki Kuswanto, Nur Asyifa, and I. Hadi Purwanto, “Akuisisi Google Drive Android Menggunakan Oxygen dan MOBILedit Dengan Metode National Institute of Justice,” J. Inform. Teknol. dan Sains, vol. 5, no. 1, pp. 141–147, Feb. 2023, doi: 10.51401/jinteks.v5i1.2523.
• K. D. O. Mahendra and I. K. Ari Mogi, “Digital Forensic Analysis Of Michat Application On Android As Digital Proof In Handling Online Prostitution Cases,” JELIKU (Jurnal Elektron. Ilmu Komput. Udayana), vol. 9, no. 3, p. 381, Feb. 2021, doi: 10.24843/JLK.2021.v09.i03.p09.
• M. Prasetio and I. Riadi, “Investigation Telegram based-on Web using National Institute of Standards and Technology Method,” Int. J. Comput. Appl., vol. 183, no. 50, pp. 8–15, Feb. 2022, doi: 10.5120/ijca2022921092.
• MiChat PTE. Limited, “MiChat,” 2018. https://www.michat.sg/about/ (accessed May 21, 2023).
• Muhammad Abdul Aziz, Wicaksono Yuli Sulistyo, and Sri Rahayu Astari3, “Komparatif Anti Forensik Aplikasi Instant Messaging Berbasis Web Menggunakan Metode Association of Chief Police Officers (ACPO),” JURISTIK (Jurnal Ris. Teknol. Inf. dan Komputer), vol. 1, no. 01, pp. 8–15, Jun. 2021, doi: 10.53863/juristik.v1i01.341.
• N. A. I. Maniar and T. Yuniati, “Implementasi Mobile Forensic Pada Aplikasi Michat dan Telegram Dengan Framework NIST 800-101,” Cyber Secur. dan Forensik Digit., vol. 5, no. 2, pp. 60–65, Jan. 2023, doi: 10.14421/csecurity.2022.5.2.3764.
• N. Anwar, S. A. Akbar, A. Azhari, and I. Suryanto, “Ekstraksi Logis Forensik Mobile pada Aplikasi E-Commerce Android,” Mob. Forensics, vol. 2, no. 1, pp. 1–10, Mar. 2020, doi: 10.12928/mf.v2i1.1791.
• N. Fatmah and R. Indrayani, “Analisis Forensik Digital pada Solid State Drive Fungsi TRIM Menggunakan Tools Autopsy dan OSForensics,” J-SISKO TECH (Jurnal Teknol. Sist. Inf. dan Sist. Komput. TGD), vol. 5, no. 2, p. 185, Jul. 2022, doi: 10.53513/jsk.v5i2.5755.
• R. Adijisman and I. Riadi, “Mobile Forensic on WhatsAppServices using National Institute of Standards and Technology Method,” Int. J. Comput. Appl., vol. 183, no. 29, pp. 41–48, Oct. 2021, doi: 10.5120/ijca2021921680.
• S. Kemp, “DataReportal Digital 2020: Indonesia,” Digital 2020: Indonesia, 2020. https://datareportal.com/reports/digital-2020-indonesia (accessed May 17, 2023).
• S. P. F. W. Pratama, I. G. N. A. C. Putra, M. A. Hamid, C. Christian, and I. K. K. Merdana, “Analisis Forensik Digital pada Aplikasi Twitter di Android sebagai Bukti Digital dalam Penanganan Kasus Prostitusi Online,” JELIKU (Jurnal Elektron. Ilmu Komput. Udayana), vol. 10, no. 3, p. 271, Apr. 2022, doi: 10.24843/JLK.2022.v10.i03.p03.
• S. R. A. Ardiningtias, S. Sunardi, and H. Herman, “Investigasi Digital Pada Facebook Messenger Menggunakan National Institute of Justice,” J. Inform. Polinema, vol. 7, no. 4, pp. 19–26, Aug. 2021, doi: 10.33795/jip.v7i4.709.
• S. Soni, Y. Fatma, and R. Anwar, “Akuisisi Bukti Digital Aplikasi Pesan Instan ‘Bip’Menggunakan Metode National Institute Of Justice (NIJ),” J. CoSciTech (Computer Sci. Inf. Technol., vol. 3, no. 1, pp. 34–42, Jun. 2022, doi: 10.37859/coscitech.v3i1.3694.
• S. Sunardi, I. Riadi, and J. Triyanto, “Forensics Mobile Layanan WhatsApp pada Smartwatch Menggunakan Metode National Institute of Justice,” JOINTECS (Journal Inf. Technol. Comput. Sci., vol. 6, no. 2, p. 63, May 2021, doi: 10.31328/jointecs.v6i2.2315.
• T. F. Efendi, R. Rahmadi, and Y. Prayudi, “Rancang Bangun Sistem Untuk Manajemen Barang Bukti Fisik dan Chain of Custody (CoC) pada Penyimpananan Laboratorium Forensika Digital,” J. Teknol. dan Manaj. Inform., vol. 6, no. 2, pp. 53–63, Dec. 2020, doi: 10.26905/jtmi.v6i2.4177.
• T. Irawan and I. Riadi, “Mobile Forensic Signal Instant Messenger Services in Case of Web Phishing using National Institute of Standards and Technology Method,” Int. J. Comput. Appl., vol. 184, no. 32, pp. 30–40, Oct. 2022, doi: 10.5120/ijca2022922394.
• Y. Safitri, I. Riadi, and S. Sunardi, “Mobile Forensic for Body Shaming Investigation Using Association of Chief Police Officers Framework,” MATRIK J. Manajemen, Tek. Inform. dan Rekayasa Komput., vol. 22, no. 3, pp. 651–664, Jul. 2023, doi: 10.30812/matrik.v22i3.2987.