CASE-001INFO
OverTheWire: Bandit
Wargame / Linux
Worked through the Bandit wargame to build Linux command-line and SSH fundamentals: file manipulation, permissions, data encoding, and basic networking.
LinuxSSHBash
Read writeup →FILE OPEN // ACCESS GRANTED
Risky Akbar
CYBER SECURITY · NETWORKING · RED TEAM
- Subject Code
- koktegesih
- Role
- Informatics Student
- Location
- Makassar, ID
- Classified Summary
- “If you know the enemy and know yourself, you need not fear the result of a hundred battles.”Sun Tzu, The Art of War
PHOTO ID
CLASSIFIEDFILE 02SUBJECT PROFILE
Profile
Networking and cyber security student with a red-team mindset. My roots are in computer networks, and my focus now leans offensive: web application pentesting, network enumeration, and Active Directory basics, all practiced in the lab and documented as clear, reproducible writeups. Active in the security community through COCONUT Computer Club.
Informatics Student, Cyber Security Concentration. Every finding is documented into a reproducible writeup, from exploitation steps to mitigation recommendations you can apply right away.
FILE 03CAPABILITIES
Capabilities & Tools
01/04
Fundamentals
[FND]// 04 ENTRIES
CLEARANCE
- 01Linux & Command Line
- 02Networking (TCP/IP, DNS, HTTP)
- 03Web Security Concepts (OWASP Top 10)
- 04Active Directory Basics
02/04
Offensive Security
[OFF]// 04 ENTRIES
CLEARANCE
- 01Web Application Pentesting (OWASP Top 10)
- 02Network Scanning & Enumeration
- 03Active Directory Attacks (basic)
- 04Exploit Development (learning)
03/04
Tools
[TLS]// 05 ENTRIES
CLEARANCE
- Burp Suite
- Nmap
- Metasploit
- Git
- Docker
04/04
Languages & Scripting
[LNG]// 05 ENTRIES
CLEARANCE
- Bash
- Python
- JavaScript / TypeScript
- Go
- SQL
FILE 04CASE FILES
Projects & Writeups
CASE-002HIGH
PortSwigger Web Security Academy: XSS
Web Exploitation
Completed the Cross-Site Scripting (XSS) labs on PortSwigger Web Security Academy, covering reflected, stored, and DOM-based XSS along with filter-bypass techniques.
Burp SuiteJavaScript
CASE-003HIGH
Vulnerable Machine Exploitation Lab
Network Pentest
Practiced network penetration on intentionally vulnerable machines (Metasploitable, VulnHub). Host discovery and service enumeration with Nmap, followed by exploiting identified services.
NmapMetasploitLinux
CASE-004INFO
AgroAdvisor: Smart Agriculture Platform
Web Development
Organization team project for a precision-agriculture platform (AI-driven recommendations, IoT sensor monitoring, weather forecasting). Contributed to the frontend in the early phase; later completed by a teammate.
Next.jsTypeScriptFastAPIMySQLDockerGemini AI
Open file ↗CASE-005INFO
Ilmu Falak: Transparent Qibla Direction PWA
Web Development
Client-side PWA for Qibla direction and prayer times that shows the math behind every value: great-circle azimuth with WMM 2025 magnetic declination correction, and NOAA solar position for the sun-based and Rashdul Qibla methods. Runs fully offline and in-browser, so location never leaves the device.
Next.jsReactTypeScriptPWADocker
Open file ↗CASE-006HIGH
SRTP VoIP Security: RTP vs SRTP + TLS
VoIP Security
Proof of concept comparing VoIP security with and without encryption on Asterisk and PJSIP. Unencrypted RTP audio could be reconstructed and replayed in Wireshark, while SRTP-SDES for media and TLS for signaling left captured media unintelligible without the crypto keys.
AsteriskSRTPTLSWiresharkOpenSSL
Open file ↗
FILE 06SERVICE RECORD
Experience & Education
2020 to 2023
SMK Teknik Komputer dan Jaringan
SMKS Amamapare Energi Dan Pertambangan Mimika
Vocational program in Computer & Network Engineering, covering network installation and configuration, hardware assembly, and troubleshooting.
2023 to Present
S1 Teknik Informatika
Universitas Muhammadiyah Makassar
Concentration in Computer Networks and Cyber Security.
2024 to Present
Executive Board (BPH)
COCONUT Computer Club
Active member and executive board of a research-oriented computer club focused on cyber security, machine learning, and computer vision. Involved in community activities and collaborative research.
2025
Local Committee, IDSECCONF 2025
IDSECCONF × COCONUT (Makassar)
Served on the local organizing committee for IDSECCONF 2025 in Makassar, Indonesia's largest hacker and cyber security conference, as part of COCONUT Computer Club.
FILE 07SECURE CHANNEL
Contact
Open to collaboration, internships, and security discussions. Contact channels are listed below, declassified and ready.
koktegesih · 0xA1F4-CYB3R