Extraterrestrial Persistence — HTB Writeup

A Linux persistence script via systemd. Decoding the Base64 that builds the .service file, the flag appears inside the Description= field.

Challenge overview

Field	Value
Platform	Hack The Box · Challenge
Category	Forensics
Difficulty	Very Easy
State	Retired
Files	`persistence.sh`

Attack map

[persistence.sh] malicious script
      │
      ▼
[checks] user/host + curl payload
      │
      ▼
[base64 -d] builds service.service
      │
      ▼
[Description=] holds the flag
      │
      ▼
[FLAG]

Script de persistencia Linux vía systemd. Al decodificar el Base64 que genera el fichero .service, la flag aparece dentro del campo Description=.

Ficha del challenge

Campo	Valor
Plataforma	Hack The Box · Challenge
Categoría	Forensics
Dificultad	Very Easy
Estado	Retirado
Archivos	`persistence.sh`

Mapa del ataque

[persistence.sh] script malicioso
      │
      ▼
[checks] usuario/host + curl payload
      │
      ▼
[base64 -d] genera service.service
      │
      ▼
[Description=] contiene la flag
      │
      ▼
[FLAG]

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