The NET300 challenge was actually a fun challenge which we solved pretty fast.
One day, attacker A hacked into B company¡¯s internal system and then stole backup data.
This backup data was made by attacker A himself.
Attacker A used his specifically configured network to detour B company¡¯s security system.
Now you(B’company’s an employee) detected it late.
You have to analyze the traffic by using WireShark and have to find which data was leaked from which internal system.
A stolen data by Attacker A will be an important hint to find the answer.
Answer : strupr(md5(Hint in the leaked data | Hacked internal system address)) (‘|’is just a character)