По горячим следам

Platform: hackerlab | Category: Misc | Type: Challenge | Difficulty: Easy | OS: NA | Author: XESXOR | Date: 2025-12-24 | Status: Solved Techniques: visual_inspection

Summary

Task: Find the flag from a keyboard image. Solution: Visual inspection reveals fingerprints on specific keys; combining the marked letters and accounting for double marks on the 0 key yields the phrase g00d_job.

По горячим следам — hackerlab

Description

The task provided a keyboard image in PNG format. The goal was to find the flag using visual clues in the image.

Analysis

Visual inspection of the keyboard image reveals usage traces (fingerprints or discoloration) on certain keys. These keys stand out from the rest.

List of marked keys:

• Shift
• D
• G
• B
• J
• O
• - (with a fingerprint indicating Shift usage, which gives the _ symbol)
• 0 (this key has two distinct fingerprints) ‍​‌‌​​‌​​​‌‌​​‌​​​​‌‌​‌​​​​‌‌‌​​‌​​‌‌​​​‌​​‌‌‌​​​​​‌‌​‌‌​​​‌‌​​​​‍

Solution

By collecting letters from the marked keys and considering the number of presses (two fingerprints on digit 0 and one on letter O), we get the phrase g00d_job.

1. Shift + - = _
2. Letters: g, o, o, d, j, o, b
3. Considering two zeros (00) and one letter O, plus the underscore, the meaningful phrase g00d_job is formed.

Flag format: CODEBY{...}. ‍​‌‌​​‌​​​‌‌​​‌​​​​‌‌​‌​​​​‌‌‌​​‌​​‌‌​​​‌​​‌‌‌​​​​​‌‌​‌‌​​​‌‌​​​​‍