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All Journal Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Madura Eco-Entrepreneur Management and Economics Journal (MEC-J) Journal Zetroem
Kety Lulu Agustin
Politeknik Negeri Balikpapan
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Social Sciences

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Pengaruh Pandemi COVID-19 Terhadap Return Saham Perbankan Milik Pemerintah Indonesia (Studi Kasus Maret 2020-Maret 2022) Endang Sri Apriani; Kety Lulu Agustin
Eco-Entrepreneur Vol 8, No 1 (2022): Juni
Publisher : Eco-Entrepreneur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/ee.v8i1.16488

Abstract

Kebijakan penundaan kewajiban pembayaran kredit dan kebijakan bunga perbankan yang dikeluarkan oleh pemerintah karena terjadinya pandemi COVID-19 berpengaruh terhadap pencatatan pendapatan bank. Permasalahan tersebut melatarbelakangi penelitian terhadap kinerja harga saham perbankan yang tercermin melalui indeks infobank15. Penelitian ini dilakukan secara kuantitatif dengan menggunakan perubahan data kasus terkonfirmasi, pemulihan dan kematian akibat COVID-19 di Indonesia dan data harga saham bank-bank BUMN pada periode yang sama. Manfaat penelitian ini dapat digunakan sebagai bahan pertimbangan masyarakat untuk berinvestasi di Pasar Modal dan mengantisipasi beberapa akibat yang timbul dari pandemi. Dari sisi emiten, dapat dilakukan branding saham yang baik melalui kebijakan yang akan diterapkan pada saat krisis karena faktor makroekonomi.
The Effect of Debt to Equity Ratio, Debt to Asset Ratio, and Risk Based Capital on Return on Asset In General Insurance Companies on The Indonesia Stock Exchange For 2015-2021 Period Kety Lulu Agustin; Annisa Dewi Dharmmesti; Nurul Musfirah Khairiyah
MEC-J (Management and Economics Journal) Vol 6, No 3 (2022)
Publisher : Faculty of Economics, State Islamic University of Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/mec-j.v6i3.17418

Abstract

According to the study's findings, the ratios of debt to equity (DER), debt to assets (DAR), and risk-based capital (RBC) all affect return on assets at the same time (ROA). This research was conducted to look at the ratios of risk-based capital (RBC) to return on assets (ROA), debt to equity ratio (DER), and debt to asset ratio (DAR) in general insurance businesses for the years 2015 through 2021.  This kind of study employs a quantitative methodology and secondary data sources. Financial statements are the source of the data. The general insurance businesses are the study's population. Analysis is conducted using multiple regression. The IBM SPSS Statistics 25 statistical application is used by the researcher. Debt to Equity Ratio (DER) significantly influences Return on Assets in a favorable way (ROA).  
The Accuracy of Using the Moving Average Cross Indicator in Technical Analysis of Indonesian Banking Stocks Endang Sri Apriani; Kety Lulu Agustin; Dessy Handa Sari; Nurul Musfirah Khairiyah
Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Vol 19, No 1: January - April 2026
Publisher : Universitas Trunodjoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/pamator.v19i1.34091

Abstract

One popular technique for financial decision-making is the moving average cross. This indicator provides signals about future stock price movements. However, the accuracy of this indicator's signals will be evaluated specifically on banking stocks listed on the Indonesia Stock Exchange. Thirty Indonesian banking companies listed on the main trading board in 2026 were selected as the research stocks. A purposive sampling procedure was used to select the research subjects, with issuers on the main board having assets exceeding 100 billion Rupiah and having been listed on the market for at least three years. Issuers on the main board are considered large issuers and can attract investors' attention. The signals provided by the 30 research subjects will then be tested using logistic regression techniques using SPSS. This approach works well for research using moving averages that have been converted into dummy data. Statistical test results indicate that the moving average cross movement is insufficient to decide which banking stocks to purchase; only 46.67% of the signals from the moving average move in accordance with the signal. More comprehensive indicators in technical analysis can be added to the analysis to make decisions and pay attention to the fundamental level of the emiten. 
Virtual Private Network for Data and Information Communication Security:Testing on Zyxel USG 2200 Router Nurwahidah Jamal; Ihsan Ihsan; Kety Lulu Agustin; Andi Yasir Amsal; Farida Farida; Mariatul Kiptiah
ZETROEM Vol 8 No 2 (2026): ZETROEM
Publisher : Prodi Teknik Elektro Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/ztr.v8i2.7830

Abstract

This study evaluates the efficacy and security robustness of a Remote Terminal Unit (RTU) data connection protected by a Virtual Private Network (VPN) deployed on the Zyxel USG 2200 router. The aim is to evaluate the effects of IPsec and SSL VPN implementations on network performance, particularly in terms of latency and packet loss, and to assess system resilience against cyberattacks through penetration testing. An experimental methodology was employed, involving the configuration of IPsec/SSL on the Zyxel router and VA modem, conducting packet transmission tests, and performing a security evaluation using Kali Linux tools (Hydra, NMAP, and Metasploit). The results indicate superior network performance, with latency values of 1.8 ms and 5.1 ms, and packet loss rates of 0.14% and 0.81%, signifying that the communication channel is exceptionally reliable and appropriate for real-time RTU applications. Port scanning revealed five open ports (21, 22, 53, 80, 443), but all penetration attempts were futile. Hydra faced failure due to a key-exchange mismatch; NMAP was unable to identify appropriate authentication keys despite numerous attempts, and Metasploit experienced connection issues during exploitation efforts. These findings validate that the established encryption and authentication systems offer sufficient defense against brute-force and fundamental exploitation threats. The research reveals that deploying IPsec and SSL VPN on the Zyxel USG 2200 enhances communication security while maintaining network performance. Future studies should incorporate long-term load testing and more sophisticated, multi-layered attack scenarios to achieve comprehensive security certification.
Co-Authors Andi Yasir Amsal Annisa Dewi Dharmmesti Dessy Handa Sari Endang Sri Apriani Farida Farida Ihsan Ihsan Khairiyah, Nurul Musfirah Mariatul Kiptiah Nurwahidah Jamal