Is Ninja Hacker Cat safe to use?

Ninja Hacker Cat has a security risk score of 61.53/100 (MEDIUM risk). Our security analysis detected 98 findings. Review the detailed security assessment below to understand the specific risks before installation.

What are the security risks of Ninja Hacker Cat?

Based on our automated security analysis, Ninja Hacker Cat presents medium risk level. The extension is analyzed for malware patterns, secret exposure, network communications, permissions, and supply chain vulnerabilities.

How is the security score calculated?

Risky Plugins calculates security scores using weighted categories: severity of findings (25 points max), malware detections (35 points), secret exposure (28 points), network communications (10 points), and obfuscation (10 points). Scores range from 0-100, with higher scores indicating greater risk.

What does CRITICAL, HIGH, MEDIUM, LOW, MINIMAL risk mean?

CRITICAL (80-100): Severe security issues like malware. HIGH (60-79): Significant vulnerabilities. MEDIUM (40-59): Moderate security concerns. LOW (20-39): Minor issues. MINIMAL (0-19): Very low risk. Always review findings before installing any extension.

Is "Ninja Hacker Cat" on Firefox Add-ons Safe to Install?

Name: Ninja Hacker Cat
Availability: InStock
Rating: 3.6667 (3 reviews)
Author: Alex

Alex · firefox · v1.7

This extension will make simple security requests for you. It can check the website you are visiting for security issue. You should only use it on your own websites. It can detect versions of the running web application and check if thats a vulnerable version. The detection is based on versions detection or proof of concept requests. Current detections: Simple Cross Site Scripting, SQL Injections and Wordpress-Backups. CVS: Confluence Server (CVE-2022-26134), Bitbucket Server (CVE-2022-36804), Exchange Server Proxyshell (CVE-2021-34473), Apache (CVE-2021-41773), Weblogic Console (CVE-2020-14882). The detections are under development. Current detections are listed in GitHub: https://github.com/Leetcore/ninja-hacker-cat

Risk Assessment

Analyzed

61.53

out of 100

MEDIUM

98 security findings detected across all analyzers

Firefox extension requesting 3 permissions

Severity Breakdown

Critical

High

Medium

Low

Info

Finding Categories

Malware Signatures

Network

IoC Indicators

YARA Rules Matched

9 rules(32 hits)

postinstall system command postinstall environment access postinstall file download credential git credentials credential docker env postinstall network communication postinstall registry modification postinstall obfuscation postinstall file manipulation

Requested Permissions

3 permissions

<all_urls>

Access and modify data on every website you visit

Dangerous

webRequest

Intercept, modify, and block all network requests

High

notifications

Low

About This Extension

Detailed Findings

37 total

YARA Rule Matches

9 rules

Indicators of Compromise

Network indicators, suspicious strings, and potential IoCs extracted during analysis

URLs

IP Addresses

Domains

Strings

All Indicators · 61

Domain

detected Domain: wp-config.php.save

XIOC detected Domain: wp-config.php.save

extracted_from_files

detected IP: ::

XIOC detected IP: ::

extracted_from_files

URL

detected URL: https://addons.mozilla.org/de/firefox/addon/ninja-hacker-cat/

XIOC detected URL: https://addons.mozilla.org/de/firefox/addon/ninja-hacker-cat/

extracted_from_files

URL

detected URL: https://github.com/vulhub/vulhub/tree/master/confluence/CVE-2022-26134

XIOC detected URL: https://github.com/vulhub/vulhub/tree/master/confluence/CVE-2022-26134

extracted_from_files

URL

detected URL: https://portswigger.net/support/using-burp-to-test-for-os-command-injection-vulnerabilities)

XIOC detected URL: https://portswigger.net/support/using-burp-to-test-for-os-command-injection-vulnerabilities)

extracted_from_files

URL

detected URL: https://github.com/horizon3ai/CVE-2022-1388/blob/main/CVE-2022-1388.py)

XIOC detected URL: https://github.com/horizon3ai/CVE-2022-1388/blob/main/CVE-2022-1388.py)

extracted_from_files

URL

detected URL: https://www.synacktiv.com/publications/how-to-exploit-cve-2021-40539-on-manageengine-adselfservice-plus.html)

XIOC detected URL: https://www.synacktiv.com/publications/how-to-exploit-cve-2021-40539-on-manageengine-adselfservice-plus.html)

extracted_from_files

URL

detected URL: https://www.1337core.de

XIOC detected URL: https://www.1337core.de

extracted_from_files

Domain

detected Domain: t.gr

XIOC detected Domain: t.gr

extracted_from_files

Domain

detected Domain: www.w3.org

XIOC detected Domain: www.w3.org

extracted_from_files

URL

detected URL: https://mozilla.org/MPL/2.0/.

XIOC detected URL: https://mozilla.org/MPL/2.0/.

extracted_from_files

URL

detected URL: http://addons.mozilla.org/ca/crl.pem0N

XIOC detected URL: http://addons.mozilla.org/ca/crl.pem0N

extracted_from_files

URL

detected URL: https://github.com/Leetcore/ninja-hacker-cat

XIOC detected URL: https://github.com/Leetcore/ninja-hacker-cat

extracted_from_files

URL

detected URL: https://github.com/sponsors/Leetcore

XIOC detected URL: https://github.com/sponsors/Leetcore

extracted_from_files

URL

detected URL: https://ko-fi.com/leetcore

XIOC detected URL: https://ko-fi.com/leetcore

extracted_from_files

detected Domain: backup.zip

XIOC detected Domain: backup.zip

extracted_from_files

Domain

detected Domain: readme.md

XIOC detected Domain: readme.md

extracted_from_files

Domain

detected Domain: foo.com

XIOC detected Domain: foo.com

extracted_from_files

Domain

detected Domain: windowinfo.id

XIOC detected Domain: windowinfo.id

extracted_from_files

Domain

detected Domain: header.name

XIOC detected Domain: header.name

extracted_from_files

Domain

detected Domain: s.ph

XIOC detected Domain: s.ph

extracted_from_files

Domain

detected Domain: ݢ.gd

XIOC detected Domain: ݢ.gd

extracted_from_files

Domain

detected Domain: ko-fi.com

XIOC detected Domain: ko-fi.com

extracted_from_files

Domain

detected Domain: www.1337core.de

XIOC detected Domain: www.1337core.de

extracted_from_files

Domain

detected Domain: portswigger.net

XIOC detected Domain: portswigger.net

extracted_from_files

Domain

detected Domain: www.synacktiv.com

XIOC detected Domain: www.synacktiv.com

extracted_from_files

Domain

detected Domain: cve-2022-1388.py

XIOC detected Domain: cve-2022-1388.py

extracted_from_files

detected Domain: ninja-hacker-cat.zip

XIOC detected Domain: ninja-hacker-cat.zip

extracted_from_files

Hash

detected MD5 Hash: edd1c9f034335f136f87ad84b625c8f1

XIOC detected MD5 Hash: edd1c9f034335f136f87ad84b625c8f1

extracted_from_files

Domain

detected Domain: z.tv

XIOC detected Domain: z.tv

extracted_from_files

Domain

detected Domain: 낹.ki

XIOC detected Domain: 낹.ki

extracted_from_files

Domain

detected Domain: ԥ.sk

XIOC detected Domain: ԥ.sk

extracted_from_files

Domain

detected Domain: p.td

XIOC detected Domain: p.td

extracted_from_files

Domain

detected Domain: b.ge

XIOC detected Domain: b.ge

extracted_from_files

Domain

detected Domain: y.hu

XIOC detected Domain: y.hu

extracted_from_files

Domain

detected Domain: github.com

XIOC detected Domain: github.com

extracted_from_files

Domain

detected Domain: mozilla.com

XIOC detected Domain: mozilla.com

extracted_from_files

Domain

detected Domain: addons.mozilla.org

XIOC detected Domain: addons.mozilla.org

extracted_from_files

Domain

detected Domain: content-signature.mozilla.org

XIOC detected Domain: content-signature.mozilla.org

extracted_from_files

Domain

detected Domain: tc525924ea5d91b1457dcbd826bb64454.4664a6fac6428c9786ab1952b077c1bf.addons.mozilla.org

XIOC detected Domain: tc525924ea5d91b1457dcbd826bb64454.4664a6fac6428c9786ab1952b077c1bf.addons.mozilla.org

extracted_from_files

Domain

detected Domain: ę6.jm

XIOC detected Domain: ę6.jm

extracted_from_files

Domain

detected Domain: rule.cat

XIOC detected Domain: rule.cat

extracted_from_files

Domain

detected Domain: options.data

XIOC detected Domain: options.data

extracted_from_files

detected IP: 127.0.0.1

XIOC detected IP: 127.0.0.1

extracted_from_files

detected IP: 5::e

XIOC detected IP: 5::e

extracted_from_files

Domain

detected Domain: mozilla.org

XIOC detected Domain: mozilla.org

extracted_from_files

Domain

detected Domain: rubygems.org

XIOC detected Domain: rubygems.org

extracted_from_files

Domain

detected Domain: miau2.mp

XIOC detected Domain: miau2.mp

extracted_from_files

Domain

detected Domain: miau1.mp

XIOC detected Domain: miau1.mp

extracted_from_files

Domain

detected Domain: signingca1.addons.mozilla.org

XIOC detected Domain: signingca1.addons.mozilla.org

extracted_from_files

detected IP: 1::

XIOC detected IP: 1::

extracted_from_files

detected IP: 2::

XIOC detected IP: 2::

extracted_from_files

detected IP: 0::

XIOC detected IP: 0::

extracted_from_files

detected IP: 4::

XIOC detected IP: 4::

extracted_from_files

detected IP: c::

XIOC detected IP: c::

extracted_from_files

detected IP: ::4

XIOC detected IP: ::4

extracted_from_files

detected IP: ::a

XIOC detected IP: ::a

extracted_from_files

Hash

detected MD5 Hash: 4664a6fac6428c9786ab1952b077c1bf

XIOC detected MD5 Hash: 4664a6fac6428c9786ab1952b077c1bf

extracted_from_files

URL

detected URL: http://www.w3.org/2000/svg

XIOC detected URL: http://www.w3.org/2000/svg

extracted_from_files

URL

detected URL: https://rubygems.org

XIOC detected URL: https://rubygems.org

extracted_from_files

URL

detected URL: https://www.1337core.de/

XIOC detected URL: https://www.1337core.de/

extracted_from_files

Security Analysis Summary

Security Analysis Overview

Ninja Hacker Cat is a Firefox Add-ons extension published by Alex. Version 1.7 has been analyzed by the Risky Plugins security platform, receiving a risk score of 61.53/100 (MEDIUM risk) based on 98 security findings.

Risk Assessment

This extension presents high security risk. Significant concerns were identified during analysis. It is not recommended for use in sensitive or production environments without thorough review.

Findings Breakdown

High: 32 finding(s)
Medium: 66 finding(s)

What Was Analyzed

The security assessment covers multiple analysis categories:

Malware Detection: YARA rule matching against 2,400+ malware signatures
Secret Detection: Scanning for exposed API keys, tokens, and credentials
Static Analysis: Code-level security analysis for common vulnerability patterns
Network Analysis: Detection of suspicious network communications and endpoints
Obfuscation Detection: Identification of code obfuscation techniques

Developer Information

Ninja Hacker Cat is published by Alex on the Firefox Add-ons marketplace. The extension has approximately 52 users.

Recommendation

This extension is not recommended for installation without thorough manual review. Consider alternatives with lower risk scores, or contact the developer to address the identified security concerns.

Source Code Viewer

Source Code Not Available

Source code is not available for this version of the extension.

Frequently Asked Questions

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Is "Ninja Hacker Cat" on Firefox Add-ons Safe to Install?

Risk Assessment

Severity Breakdown

Finding Categories

YARA Rules Matched

Requested Permissions

About This Extension

Detailed Findings

NET-FETCH-engine/fuzzing.js-56

NET-FETCH-engine/tags.js-9

NET-FETCH-engine/helper.js-51

NET-FETCH-engine/fuzzing.js-119

MANIFEST-SENSITIVE-PERM-<ALL_URLS>

YARA Rule Matches

postinstall system command

postinstall environment access

postinstall file download

credential git credentials

credential docker env

postinstall network communication

postinstall registry modification

postinstall obfuscation

postinstall file manipulation

Indicators of Compromise

All Indicators · 61

Security Analysis Summary

Security Analysis Overview

Risk Assessment

Findings Breakdown

What Was Analyzed

Developer Information

Recommendation

Frequently Asked Questions

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