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rudy_candy

Ex-network engineer, now a vulnerability assessor in Japan. I write about real-world pentesting, how I broke into security, and what the job actually looks like inside Japan's security industry.

Location Japan Joined Joined on  github website
What people get wrong about penetration testing

What people get wrong about penetration testing

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2 min read
The skills that actually transfer: what to learn for a long career in IT

The skills that actually transfer: what to learn for a long career in IT

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2 min read
How I pass IT certifications in about 3 months while working full-time

How I pass IT certifications in about 3 months while working full-time

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2 min read
A Day in the Life of a Vulnerability Assessor in Japan

A Day in the Life of a Vulnerability Assessor in Japan

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4 min read
strings Command in CTF: Hidden Data Guide

strings Command in CTF: Hidden Data Guide

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9 min read
pngcheck in CTF: How to Analyze and Repair PNG Files

pngcheck in CTF: How to Analyze and Repair PNG Files

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12 min read
Scan Surprise picoCTF Writeup

Scan Surprise picoCTF Writeup

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3 min read
CTF Audio Challenges: A Practical SoX Combat Guide

CTF Audio Challenges: A Practical SoX Combat Guide

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15 min read
fdisk in CTF: Partition Analysis and Common Challenge Patterns

fdisk in CTF: Partition Analysis and Common Challenge Patterns

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13 min read
binwalk in CTF: Spot False Positives Fast

binwalk in CTF: Spot False Positives Fast

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6 min read
CTF Forensics Tools: The Ultimate Guide for Beginners

CTF Forensics Tools: The Ultimate Guide for Beginners

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6 min read
RED picoCTF Writeup

RED picoCTF Writeup

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8 min read
Includes picoCTF Writeup

Includes picoCTF Writeup

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7 min read
steghide in CTF: Extract Flags

steghide in CTF: Extract Flags

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5 min read
Corrupted File picoCTF Writeup

Corrupted File picoCTF Writeup

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10 min read
Crack the Power picoCTF Writeup

Crack the Power picoCTF Writeup

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3 min read
Disk Image Forensics: Why mount Fails and How to Make the Right Call First

Disk Image Forensics: Why mount Fails and How to Make the Right Call First

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7 min read
zbarimg in CTF: QR/Barcode Decoding Techniques and Common Challenge Patterns

zbarimg in CTF: QR/Barcode Decoding Techniques and Common Challenge Patterns

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3 min read
pdfdumper in CTF: Extracting PDF Content and Common Challenge Patterns

pdfdumper in CTF: Extracting PDF Content and Common Challenge Patterns

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10 min read
dd in CTF: Disk Imaging, Extraction, and Common Challenge Patterns

dd in CTF: Disk Imaging, Extraction, and Common Challenge Patterns

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10 min read
Audacity CTF: Audio Forensics

Audacity CTF: Audio Forensics

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11 min read
FFmpeg for CTF Forensics

FFmpeg for CTF Forensics

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11 min read
Mini RSA picoCTF Writeup

Mini RSA picoCTF Writeup

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9 min read
Analyzing ZIP Encryption: When to Act

Analyzing ZIP Encryption: When to Act

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111 min read
DISKO 1 picoCTF Writeup

DISKO 1 picoCTF Writeup

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6 min read
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