Division Zero (Div0) – Singapore Cybersecurity Community

SHELLGym — Linux Forensics and Reverse Engineering basics

Sat, Jun 13 · 2:00 PM SST

CyberSG TIG Collaboration Centre (formerly ICE71), 71 Ayer Rajah Crescent, Singapore, SG

⚠️ REGISTRATION IS REQUIRED VIA THIS LUMA FORM ⚠️

SHELLGym is the regular cybersecurity workout you have been looking for! Whether you're just starting out and need some exercises, studying for a cert (hint: OSCP), looking at CTF challenges, or developing something cybersecurity-related (maybe your own automated tools?), SHELLGym aims to help you progress in picking up practical cybersecurity knowledge and skills. Come and go as you please, work on your own stuff with like-minded individuals, or just have fun during the workout!

AGENDA
Linux Forensics and Reverse Engineering basics:

• Triaging in Linux
• Step-by step IDA
• Step-by-step gdb
• Guided walkthrough on selected real-life binary

⚠️ NOTE
Bring your own laptops (and laptop chargers) with pre-installed Linux VM. Please also download IDA Free (Link to Guide) before the session.

VIRTUAL SHELLGyms in JUNE (by request)
Hosted on Discord, do approach KK or the Div0 Crew for access

TRAINER
KK Tan — Founder, counterShell
As a mid-careerist convert to cybersecurity, Tan KK picked up his practical skills through getting OSCP certified and by participating in a variety of CTFs. In his career at CSIT, he performed a variety of red-teaming and vulnerability research roles and established the Cyber Training School at CSIT as the Lead Instructor. Besides the OSCP certification, KK is also OSCE and OSEE certified, and has a Bachelor's degree in Social Science (Psychology). He now sees psychology as a field of study where you fuzz humans until they produce unexpected behaviour.

SPONSORS

• VENUE SPONSOR: CyberSG TIG Collaboration Centre

IMPORTANT NOTICES

• Code of Conduct: https://www.div0.sg/code-of-conduct
• Terms of Use & Disclaimer Notice: https://www.div0.sg/terms-of-use-disclaimer-notice

Div0 CDQ Workshop - Building Your Own Home Lab

Tue, Jun 30 · 7:00 PM SST

CyberSG TIG Collaboration Centre (formerly ICE71), 71 Ayer Rajah Crescent, Singapore, SG

⚠️ REGISTRATION IS REQUIRED VIA THIS LUMA FORM ⚠️

A refundable deposit of SGD30 will be collected and refunded at the end of the workshop (within 2 working days). For refunds, attendees must email a screenshot of the completed post-event survey form to community@div0.sg via the email they used during sign-up.
Dinner will be provided to all workshop attendees.

—
ABSTRACT
From Curiosity to Capability: Build Your First Home Lab
A home lab is a personal computing environment you build and run yourself — a sandbox to experiment, break things, and learn. In this workshop, we explore why building one at home is one of the most practical ways to develop real cybersecurity skills, bridging the gap between textbook knowledge and hands-on capability. We will walk through how home lab concepts map directly to professional cybersecurity environments, and demystify the core terminologies you will encounter along the way — SSH, NAT, VLANs, IP and DNS, virtualisation, Docker, and remote access. Whether you are a student, a career switcher, or an IT professional looking to go deeper, this workshop gives you the foundation to start building with confidence.

LEARNING OBJECTIVES

• Homelab foundations + Quick Threat Modeling
• Lets build a simple DNS lab
• Monitoring logs
• What's next?

SET UP REQUIREMENTS
Bring your own laptops (and laptop chargers)

• Install VMware
• Download Proxmox Virtual Environment (VE) iso file and install in VMware
• Make sure to use Bridge mode and set static IP address on Proxmox guest VM, otherwise it gets a little bit more tricky to change the IP address (requires CLI)

TRAINERS

• Jeremy (LinkedIn)
• Jun Hong (Dave) (LinkedIn)

SPONSORS

• VENUE SPONSOR: CyberSG TIG Collaboration Centre and BLOCK71

IMPORTANT NOTICES

• Code of Conduct: https://www.div0.sg/code-of-conduct
• Terms of Use & Disclaimer Notice: https://www.div0.sg/terms-of-use-disclaimer-notice

SHELLGym — Windows Forensics and Reverse Engineering basics

Sat, Jul 18 · 2:00 PM SST

CyberSG TIG Collaboration Centre (formerly ICE71), 71 Ayer Rajah Crescent, Singapore, SG

⚠️ REGISTRATION IS REQUIRED VIA THIS LUMA FORM ⚠️

SHELLGym is the regular cybersecurity workout you have been looking for! Whether you're just starting out and need some exercises, studying for a cert (hint: OSCP), looking at CTF challenges, or developing something cybersecurity-related (maybe your own automated tools?), SHELLGym aims to help you progress in picking up practical cybersecurity knowledge and skills. Come and go as you please, work on your own stuff with like-minded individuals, or just have fun during the workout!

AGENDA
Windows Forensics and Reverse Engineering basics:

• Triaging in Windows (sysinternals)
• Step-by-step windbg
• Guided walkthrough on selected real-life binary

⚠️ NOTE
Bring your own laptops (and laptop chargers) with pre-installed Windows VM. Please also download windbg (Link to Guide) and sysinternals (Link to Guide) before the session.

VIRTUAL SHELLGyms in JULY (by request)
Hosted on Discord, do approach KK or the Div0 Crew for access

TRAINER
KK Tan — Founder, counterShell
As a mid-careerist convert to cybersecurity, Tan KK picked up his practical skills through getting OSCP certified and by participating in a variety of CTFs. In his career at CSIT, he performed a variety of red-teaming and vulnerability research roles and established the Cyber Training School at CSIT as the Lead Instructor. Besides the OSCP certification, KK is also OSCE and OSEE certified, and has a Bachelor's degree in Social Science (Psychology). He now sees psychology as a field of study where you fuzz humans until they produce unexpected behaviour.

SPONSORS

• VENUE SPONSOR: CyberSG TIG Collaboration Centre

IMPORTANT NOTICES

• Code of Conduct: https://www.div0.sg/code-of-conduct
• Terms of Use & Disclaimer Notice: https://www.div0.sg/terms-of-use-disclaimer-notice