Challenge list
ProgrammingLevel 4★★★★☆Advanced Python - Custom VM Bytecode Execution
program.kvm is bytecode for a custom four-register VM. Implement an interpreter in Python from the instruction…
Network SecurityLevel 4★★★★☆Network Analysis - Rebuilding Chunked gzip HTTP from TCP
capture.pcap records two HTTP exchanges over one TCP connection. The server's segments are reordered and some are…
Network SecurityLevel 4★★★★☆Network Analysis - TCP Retransmission Covert Channel
capture.pcap contains TCP retransmissions with duplicate sequence numbers. Extract retransmissions whose payload…
ProgrammingLevel 4★★★★☆Binary Repair - Firmware Header and CRC32
Repair firmware.bin by writing KINO at bytes 0-3 and the little-endian CRC32 of bytes 12+ at bytes 8-11. Submit the…
ProgrammingLevel 4★★★★☆Programming - C2 Traffic Analysis
Analyze the synthetic log beacon.log, which is generated randomly at every start (no network connection is needed).…
ProgrammingLevel 4★★★★☆Programming - Buffer Overflow Crash Analysis
Analyze the crash reports crash_01.txt to crash_06.txt, which are generated randomly at every start (they contain no…
ProgrammingLevel 4★★★★☆Programming - Fuzzing Result Analysis
Analyze the fuzzing result log fuzz-results.log, which is generated randomly at every start (inputs are merely stored;…
ProgrammingLevel 4★★★★☆Programming - Blockchain Event Reassembly
/challenge/blocks.json is a list of blocks from an offline development chain, regenerated with random data every time…
ProgrammingLevel 4★★★★☆Programming - Rootkit View Diffing
proc_ps.txt (the userland ps output) and proc_kernel.txt (the result of walking the kernel task list directly) are…
ProgrammingLevel 4★★★★☆Programming - Anomaly Detection
/challenge/requests.csv is a web API access log that is regenerated with random data every time the container starts…
ProgrammingLevel 4★★★★☆Programming - Pentest Finding Analysis
findings.json is a scan result built from random data at every start (in /challenge). It has entry (edge-gw),…
ProgrammingLevel 4★★★★☆Programming - Async Scan Result Analysis
/challenge/scan-events.jsonl is the event log of an asynchronous port scanner, regenerated with random data every time…