Blue Team Labs
Put your knowledge into practice with gamified cyber security challenges.

Crossed Signals
Endpoint Forensics
mediumA routine security audit. A trusted messaging app. By the time the victim realized something was wrong, the damage was already done. Can you trace what happened?

DeadDrop - Hollow
Threat Hunting, Endpoint Forensics
hardInvestigate a hybrid cloud + on-prem intrusion using Splunk, triage disk and memory images across three hosts: trace a phished finance workstation through DLL side-loading, Kerberoasting and in-memory shellcode, follow lateral movement over WinRM to a Domain-Controller-impersonating AD CS certificate, and uncover a covert Microsoft Graph calendar dead-drop C2 that leaves no network signature.

Ancientland Breach - LockBit
Endpoint Forensics, Network Forensics
hardCommunity rating: insaneTrace a real-world attack chain end to end — from a leaked VPN config to domain-wide ransomware. Along the way you will decode obfuscated malware, reverse-engineer a kernel exploit, crack beacon encryption, and reconstruct the attacker's every move from disk, memory, and network artifacts.