Hackback

Verified writeups for the Hackback machine of Hack The Box

Hackback

$ tldr Gophish log poisoning → reGeorg SOCKS → cron + SeImpersonate

·	·
Operating system	Windows
Difficulty	Insane
Vector	Windows privesc
IP	10.10.10.128
Retirement date	2019-07-06
Skills	Subdomain Enumeration Information Leakage Password Fuzzing Gophish Template Log Poisoning (Limited RCE) Internal Port Discovery reGeorg - Accessing internal ports through a SOCKS proxy (proxychains) Accessing the WinRM service through reGeorg and SOCKS proxy Abusing Cron Job + SeImpersonatePrivilege Alternative Exploitation Playing with PIPES - pipeserverimpersonate Impersonating users and executing commands as the impersonated user Bypassing Firewall Rules (BlockInbound/BlockOutbound) Abusing Services Alternate Data Streams (ADS)

Writeups

Language	Author	Format	Link
🇪🇸 ES	S4vitar	Vídeo	Open
🇬🇧 EN	0xdf	Texto	Open
🇬🇧 EN	IppSec	Vídeo	Open

Skill resources

Curated documentation for each technique listed in the Skills column above. Sources: HackTricks, GTFOBins, PortSwigger, etc.

Skill	Source	Link
Subdomain Enumeration	HackTricks	Open
Information Leakage	HackTricks	Open
Directory fuzzing	HackTricks	Open
Remote Code Execution (RCE)	HackTricks	Open

Related skills worth mastering

Local File Inclusion (LFI) · Remote File Inclusion (RFI) · Shellshock (CVE-2014-6271)

If you liked this machine, try

• Bart — Windows, Medium
• Worker — Windows, Medium
• Teacher — Linux, Easy
• Curling — Windows, Easy
• Remote — Windows, Easy

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Last updated: 2026-06-07