I spent the last few weeks building SecureCheck AI — a free web-based cybersecurity intelligence platform for developers. Here is what it does: Paste any website URL and get a security score from 0 to 100 It checks real HTTP headers — CS…

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I built a free cybersecurity scanner that gives any website a security score — here's how I spent the last few weeks building SecureCheck AI — a free web-based cybersecurity intelligence platform for developers.

Angriffsfläche

Enterprise IT / Cloud Infrastruktur

Exploit-Status

Geringe Ausnutzungswahrscheinlichkeit / Keine aktiven Kampagnen

Sofortmaßnahme

Asset-Inventar prüfen & Upstream-Advisory überwachen

I spent the last few weeks building SecureCheck AI — a free web-based cybersecurity intelligence platform for developers.

Here is what it does:

Paste any website URL and get a security score from 0 to 100

It checks real HTTP headers — CSP, X-Frame-Options, HTTPS redirects and more

It tells you exactly what is missing and how to fix it

It detects the tech stack of any website without touching their code

It has a full domain intelligence module — WHOIS, DNS, SSL certificate check

The AI assistant (powered by Groq Llama 3.3) answers security questions and analyzes code

How I know it works

I ran it on my own site and got 75/100. The report said I was missing a Content-Security-Policy header. I added 10 lines to my vercel.json. Ran it again — 100/100. That is exactly what this tool is built for.

What makes it different

Most security scanners are paid, complicated, or built for enterprise teams. This one is free, runs in the browser, and gives developers plain English explanations with exact fix recommendations.

Try it here:

https://securecheck-ui.vercel.app

Modules available right now:

Security Scanner

Technology Intelligence

Domain Intelligence

API Intelligence

Payment Lab

AI Security Assistant

Community Hub

Built with React, Tailwind, Node.js on Render, and Groq AI.

Would love feedback from the security community — what other checks should I add?

1. Sofort-Triage & Abwehrmaßnahmen

IR-PLAYBOOK-RCEHIGH

Schritte anzeigen

SOC Incident Playbook: Remote Code Execution (RCE) Defense

WAF MitigationSofort

Virtuelles Patchen am Reverse Proxy / WAF für gefährdete URL-Pfade und Payloads aktivieren.

SecRule REQUEST_URI "@rx ..." "id:1001,phase:1,deny,status:403"

Web Shell ScanSofort

Web-Root auf neu angelegte Scripts, anomal modifizierte Dateien und Persistence scannen.

find /var/www -type f -name "*.php" -mmin -120

Outbound FilteringSofort

Ausgehenden Datenverkehr (Reverse Shells zu unbekannten IPs/Ports) blockieren.

ss -tunp | grep -E ":(4444|1337|8080|9001)"

Vendor Patching

Hersteller-Update in Staging validieren und schnellstmöglich in Produktion ausrollen.

apt update && apt --only-upgrade install <pkg>

1-Click Detection Engineering: Multi-Dialect SIEM Rules5 Formate

Regeln anzeigen

1 Warnungen

title: Detect Exploitation - I built a free cybersecurity scanner that gives any website a security score — here's how
id: b0b351b0-cf52-4264-95ab-1caf15253731
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
  - https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-26
logsource:
  category: network_connection
  product: any
detection:
  selection:
      CommandLine|contains:
        - 'exploit'
  condition: selection
falsepositives:
  - Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
  - attack.initial_access

Syntax validiert (0 Fehler)

rule CTI_Threat_Indicator {
    meta:
        author = "iShareStuff CTI Automated Detection Engine"
        date = "2026-09-26"
        description = "YARA Signature for "
    strings:
        $str = "I built a free cybersecurity s" ascii wide
    condition:
        any of them
}

Syntax validiert (0 Fehler)

index=security sourcetype IN ("cisco:asa", "pan:traffic", "zeek_conn", "suricata", "WinEventLog:Security")
("I built a free cybersecurity scanner tha")
| stats count earliest(_time) as first_seen latest(_time) as last_seen by src_ip, dest_ip, dest_host, signature
| eval first_seen=strftime(first_seen, "%Y-%m-%d %H:%M:%S"), last_seen=strftime(last_seen, "%Y-%m-%d %H:%M:%S")
| sort - count

Syntax validiert (0 Fehler)

message: "*I built a free cybersecurity scanner tha*"

Syntax validiert (0 Fehler)

CommonSecurityLog
| where Message has "I built a free cybersecurity scanner tha"
| summarize EventCount = count(), FirstSeen = min(TimeGenerated), LastSeen = max(TimeGenerated) by SourceIP, DestinationIP, DestinationPort, Activity
| extend DetectionRule = "iShareStuff-CTI-Compiled"
| sort by EventCount desc

2. Cyber Threat Intelligence & Forensik

🎯

MITRE ATT&CK Matrix Navigator 14 Taktiken

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

💡 Tipp: Klicken Sie auf eine TTP, um Gegenmaßnahmen und SIEM-Erkennungsregeln anzuzeigen.Enterprise Matrix v14.1

🚀 Auf tsecurity.de entdecken

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Fokus-Vektor:

Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich I built a free cybersecurity scanner tha.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.

🛡️ Angriffsfläche & Exposure

Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.

⚡ Empfohlene Sofortmaßnahmen

1. Perimeter-Inspektion: Relevante Portfreigaben und exponierte Endpunkte unverzüglich scannen.
2. Patch-Applikation: Hersteller-Hotfix einspielen oder betroffene Daemons in isolierte DMZ-Segmente überführen.
3. Telemetrie & EDR-Alerts: Prozessaufrufe und Child-Processes auf anomale Shell-Spawns überwachen.

🔗 Semantisch verwandte Zero-Days MariaDB 11.7 VEC

Schnell-Prompts für Analysten

⚠️ DEFANGED SANDBOX VIEW (tsecurity.de): Alle Netzwerkindikatoren und URLs wurden neutralisiert (2 Indikatoren entschärft). Nur zur defensiven Analyse!

Format: python

#!/usr/bin/env python3
# Exploit Title: PoC for Target
import socket, sys
target = '192[.]168[.]1[.]10'
url = 'hxxp://target[.]local/vuln'
s = socket.socket()
s.connect((target, 80))
s.send(b'GET / HTTP/1.1\r\nHost: target.local\r\n\r\n')

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