Default credentials

Cross-platform resources for Default credentials: curated HTB machines, PortSwigger labs and TryHackMe rooms with validated writeups and related skills.

This page aggregates cross-platform resources to practice Default credentials: retired Hack The Box machines, PortSwigger Web Security Academy labs and TryHackMe rooms, plus curated resources (HackTricks, PortSwigger, etc.) and related skills.

Coverage: 4 challenges across 2 platforms — 1 HackTheBox · 3 TryHackMe. 1 with a Spanish writeup, 1 with a video writeup.

Where to start

Ordered by actual difficulty. At the same level: isolated lab first, then the guided room, and the full machine last.

1. TryHackMe — 25 Days of Cyber Security (Easy · ~45 min) · 🇬🇧
2. TryHackMe — Advent of Cyber 2 [2020] (Easy · ~45 min) · 🇬🇧
3. TryHackMe — Advent of Cyber 3 (2021) (Easy · ~1440 min) · 🇬🇧
4. HackTheBox — Mirai (Fácil) · 🇪🇸 🇬🇧 📹

Curated resources

Source	Link
HackTricks	https://book.hacktricks.wiki/en/generic-methodologies-and-resources/brute-force.html

HTB machines practicing Default credentials (1)

Machine	OS	Difficulty	Writeup
Mirai	Linux	EASY	🇪🇸 🇬🇧 📹

TryHackMe rooms practicing Default credentials (3)

Room	Difficulty	Type	Access	Official
25 Days of Cyber Security	EASY	Walkthrough	🟢 Free	Open
Advent of Cyber 2 [2020]	EASY	Walkthrough	🟢 Free	Open
Advent of Cyber 3 (2021)	EASY	Walkthrough	🟢 Free	Open

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Last updated: 2026-08-17