SMB (139/445)

Cross-platform resources for SMB (139/445): curated HTB machines, PortSwigger labs and TryHackMe rooms with validated writeups and related skills.

SMB (139/445)

This page aggregates cross-platform resources to practice SMB (139/445): retired Hack The Box machines, PortSwigger Web Security Academy labs and TryHackMe rooms, plus curated resources (HackTricks, PortSwigger, etc.) and related skills.

Curated resources

Source	Link
HackTricks	https://book.hacktricks.wiki/en/network-services-pentesting/pentesting-smb/index.html

HTB machines practicing SMB (139/445) (16)

Machine	OS	Difficulty
Active	Windows	EASY
Anubis	Windows	INSANE
APT	Windows	INSANE
Atom	Windows	MEDIUM
Bankrobber	Windows	INSANE
Blackfield	Windows	HARD
Cascade	Windows	MEDIUM
Heist	Windows	EASY
MultiMaster	Windows	INSANE
Resolute	Windows	MEDIUM
Scrambled	Windows	MEDIUM
Search	Windows	HARD
Sizzle	Windows	INSANE
Sniper	Windows	MEDIUM
StreamIO	Windows	MEDIUM
TimeLapse	Windows	EASY

TryHackMe rooms practicing SMB (139/445) (12)

Room	Difficulty	Type	Access	Official
25 Days of Cyber Security	EASY	Walkthrough	🟢 Free	Open
AD: Basic Enumeration	EASY	Walkthrough	🟢 Free	Open
Advent of Cyber 2 [2020]	EASY	Walkthrough	🟢 Free	Open
Advent of Cyber 2022	EASY	Walkthrough	🟢 Free	Open
Basic Pentesting	EASY	Challenge	🟢 Free	Open
Django: CVE-2025-64459	EASY	Walkthrough	🟢 Free	Open
Kenobi	EASY	Walkthrough	🟢 Free	Open
Network Security Essentials	EASY	Walkthrough	🟢 Free	Open
Network Services	EASY	Walkthrough	🟢 Free	Open
Network Traffic Basics	EASY	Walkthrough	🟢 Free	Open
Detecting AD Lateral Movement	MEDIUM	Walkthrough	🔵 VIP	Open
Dumping Router Firmware	MEDIUM	Walkthrough	🟢 Free	Open

Related skills

• /en/skills/eternalblue
• /en/skills/ms08-067

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Last updated: 2026-05-09