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57 challenges (Page 3 of 3)

Digital ForensicsLevel 2★★☆☆☆

Identify Intrusion Time from File Timestamps

Analyze the modification times of the files in evidence/ to identify when the intrusion occurred and which hidden…

ProgrammingLevel 2★★☆☆☆

Programming - Bash Job Log Analysis

/challenge/jobs.log is a nightly batch log that is regenerated with random data every time the container starts. Each…

ProgrammingLevel 2★★☆☆☆

Programming - PIN Brute Force

/challenge/vault.json is a vault record that is regenerated with random data every time the container starts. It…

ProgrammingLevel 2★★☆☆☆

Programming - Hash Verification and Decryption

Analyze the evidence file artifact-manifest.json, which is generated randomly at every start. Each artifact…

ProgrammingLevel 2★★☆☆☆

Programming - Binary TLV Parsing

/challenge/capture.bin is a custom binary file that is regenerated with random data every time the container starts.…

Digital ForensicsLevel 2★★☆☆☆

Find Process in Memory Dump

memory.dump is a simplified text of memory-analysis output (pslist / psscan / cmdline). Find the suspicious process…

Digital ForensicsLevel 2★★☆☆☆

Recover Deleted Files

Recover the deleted compressed file (ZIP) from the disk image and find the flag in the memo inside it. Learn how to…

ProgrammingLevel 2★★☆☆☆

Regular Expressions - The One-Time Golden Glyph

Extract every KINO-four-digits-four-uppercase glyph from data.txt, identify the one occurring once, and submit it to…

Digital ForensicsLevel 2★★☆☆☆

Message Hidden in Image LSB

Extract the message hidden in the LSB (Least Significant Bit) of a PNG file. Learn the basics of steganography…