Osep Work: Jijistudio

Moving laterally across the network using Kerberos attacks and abusing Group Policy Objects (GPOs) to compromise the entire domain.

The JijiStudio lab is a simulated corporate network environment designed by OffSec as part of the PEN-300 course. Unlike basic training labs that focus on simple exploits, JijiStudio is built to reflect "defense-in-depth" security systems. This means students cannot simply find a single vulnerability to gain access; instead, they must chain multiple sophisticated techniques together to succeed. Key components of the JijiStudio lab work include: jijistudio osep work

Once a system is breached, the work focuses on thorough enumeration to find "secret.txt" or other mission-critical flags required for certification. Educational and Career Impact Moving laterally across the network using Kerberos attacks

Rather than relying on public tools like Mimikatz, which are heavily signatured by AV, testers learn to write their own C# loaders and process injectors from scratch. This means students cannot simply find a single