HTTPProbe vs HTTPX: A Pentester’s Guide to Probing Tools

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Introduction

HTTPProbe and HTTPX are two essential tools for penetration testers and security researchers, designed to probe and analyze HTTP(S) endpoints. While both serve similar purposes—identifying live hosts, detecting vulnerabilities, and mapping attack surfaces—they differ in speed, complexity, and feature sets. This article explores their strengths, weaknesses, and best use cases for security assessments.

Learning Objectives

  • Understand the core functionalities of HTTPProbe and HTTPX.
  • Compare their strengths and weaknesses in real-world penetration testing.
  • Learn practical commands and probing techniques for both tools.

You Should Know

1. Installing HTTPProbe & HTTPX

Command (Linux):

 Install HTTPProbe 
go install github.com/tomnomnom/httprobe@latest

Install HTTPX 
go install github.com/projectdiscovery/httpx/cmd/httpx@latest

What This Does:

These commands install both tools using Go. HTTPProbe is lightweight and fast, while HTTPX offers advanced probing features.

Step-by-Step Guide:

  1. Ensure Go is installed (sudo apt install golang on Debian-based systems).
  2. Run the above commands to fetch the latest versions.
  3. Verify installation by running `httprobe -h` and httpx -h.

2. Basic Probing with HTTPProbe

Command:

cat subdomains.txt | httprobe

What This Does:

Takes a list of subdomains from `subdomains.txt` and checks which ones are live by sending HTTP/HTTPS requests.

Step-by-Step Guide:

1. Gather subdomains (e.g., using `subfinder` or `assetfinder`).

2. Pipe the list into `httprobe`.

  1. Output shows active endpoints (e.g., http://example.com`,https://api.example.com`).

3. Advanced Probing with HTTPX

Command:

cat subdomains.txt | httpx -title -status-code -tech-detect

What This Does:

Probes subdomains while extracting page titles, HTTP status codes, and technology stacks (e.g., WordPress, Nginx).

Step-by-Step Guide:

1. Input subdomains from a file (`subdomains.txt`).

  1. Use flags like `-title` (page title), `-status-code` (HTTP response code), and `-tech-detect` (server tech).
  2. Results help prioritize vulnerable targets (e.g., `404` errors, outdated frameworks).

4. Custom Headers & Proxies in HTTPX

Command:

httpx -l targets.txt -H "User-Agent: Mozilla/5.0" -proxy http://127.0.0.1:8080

What This Does:

Sends requests with a custom User-Agent and routes traffic through a proxy (e.g., Burp Suite for debugging).

Step-by-Step Guide:

1. Specify targets in `targets.txt`.

  1. Modify headers (-H) for evasion or testing WAFs.
  2. Use `-proxy` to inspect traffic in Burp or OWASP ZAP.
    1. Fast Scanning with HTTPProbe for Large Scans

Command:

cat massive_list.txt | httprobe -c 50

What This Does:

Scans 50 URLs concurrently for high-speed reconnaissance in large-scale assessments.

Step-by-Step Guide:

  1. Use `-c` (concurrency) to adjust speed (higher = faster but more aggressive).
  2. Ideal for initial reconnaissance before deeper scans with HTTPX.

6. Vulnerability Detection with HTTPX

Command:

httpx -l urls.txt -path "/.git/config" -status-code -mc 200

What This Does:

Checks for exposed `.git/config` files (common misconfiguration leading to source code leaks).

Step-by-Step Guide:

1. Use `-path` to test specific endpoints.

2. `-mc 200` filters only successful (200 OK) responses.

3. Useful for finding sensitive files (`/admin`, `/backup`).

7. Comparing Output Formats

HTTPProbe (Simple):

cat domains.txt | httprobe > live_hosts.txt

HTTPX (Detailed):

httpx -l domains.txt -json -o results.json

What This Does:

HTTPProbe outputs plaintext live hosts, while HTTPX supports JSON for automation (e.g., feeding into other tools).

What Undercode Say

  • Key Takeaway 1: HTTPProbe excels in speed for large-scale scans, while HTTPX offers deeper analysis for targeted assessments.
  • Key Takeaway 2: Combining both tools optimizes efficiency—use HTTPProbe for initial recon and HTTPX for in-depth probing.

Analysis:

For penetration testers, choosing between HTTPProbe and HTTPX depends on the scenario. Large-scale bug bounty programs benefit from HTTPProbe’s speed, while complex engagements (e.g., red teams) require HTTPX’s advanced features. Future updates may merge these strengths, but for now, mastering both ensures comprehensive coverage.

Prediction

As web applications grow in complexity, probing tools will evolve with AI-driven automation, real-time vulnerability correlation, and deeper API security checks. Expect tighter integration with frameworks like Nuclei, making HTTPX a staple in modern pentesting workflows.

IT/Security Reporter URL:

Reported By: Dharamveer Prasad – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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