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Large Language ModelsZenn AI/MLPublished: Nov 8, 2026, 06:00 JST

AlienPentest lets Claude run full pentests on Kali Linux

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AlienPentest lets Claude run full pentests on Kali Linux

3 Key Points

  1. What happened

    Developer zer0 released AlienPentest for Kali Linux, which runs five phases — recon, scan, exploit, post-exploit and report — after you enter a target IP and press LAUNCH. It needs a purchased license key and a Claude API key.

  2. Why it matters

    Tasks that once required running nmap, nikto and gobuster by hand and reading each output can now be chained automatically, so pentest work may need far less manual tool operation and specialist time.

WHO IT HITSSecurity consultants and in-house pentesters who currently run reconnaissance and vulnerability tools by hand could hand that chain to the AI, while learners can watch its reasoning on practice targets like Metasploitable2. Anthropic API usage is billed directly to the user per scan.

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Context & Analysis

The pitch rests on how penetration testing is normally done: a tester runs tools like nmap, nikto and gobuster one at a time and interprets each output before choosing the next move, which takes deep expertise and a great deal of time. AlienPentest replaces that loop with AI judgment, moving from open ports and running services to known vulnerabilities and then to whether entry is actually possible, and finishing with a report that includes recommended countermeasures.

The distribution model is split in two. The license itself is bought from alienpentest-license.fly.dev and comes in STR, PRO and ENT tiers that differ on monthly sessions, whether exploitation is allowed, and PDF export; the AI side runs on a Claude API key obtained from Anthropic's console, with usage billed by Anthropic and consumption per scan varying with target size. A stealth toggle that inserts 0.5–3 second gaps between tool runs and caps concurrency is offered for real engagements where detection matters, and an interrupted scan can be resumed from a button on the next launch.

For practice, the tool is paired with Metasploitable2, an intentionally vulnerable VM, and lists the flaws it is meant to find automatically — a backdoor in vsftpd 2.3.4 that yields a root shell, a backdoor command in UnrealIRCd 3.2.8.1, an OS command route in Samba 3.0.20, password-free root access to MySQL 5.0.51a, and code execution through Apache PHP 5.2.4 URL arguments. The author states that every operation described was carried out only in environments they own or manage, and the tool is presented as being for certified professionals holding written permission, given that unauthorized testing is a criminal offense under laws including Japan's Unauthorized Access Prohibition Act and the U.S. Computer Fraud and Abuse Act.

FAQ
What do I need to run AlienPentest?
Kali Linux 2024.x or later on x86_64, with 4GB of memory recommended and an internet connection. You also need two keys: an AlienPentest license key from alienpentest-license.fly.dev and a Claude API key from console.anthropic.com.
How much does a scan cost?
API usage is billed directly by Anthropic, and consumption per scan varies with the size of the target. On top of that, the license tiers are STR at 30 sessions a month, PRO at 100 sessions, and ENT unlimited.
Can I test any system I want?
No. The tool is aimed only at certified security professionals with written permission, and a confirmation dialog asks about that permission before a scan starts. Testing without authorization violates laws such as Japan's Unauthorized Access Prohibition Act and the U.S. Computer Fraud and Abuse Act.
What is stealth mode for?
Turning the STEALTH toggle on adds random intervals of 0.5 to 3 seconds between tool runs and limits concurrent executions, which makes automated detection by IDS/IPS less likely.
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