Is "Extension" on Firefox Add-ons Safe to Install?

elusive7495 · firefox · v2021.2

Risk Assessment

Analyzed
30.61
out of 100
LOW

18 security findings detected across all analyzers

Firefox extension requesting 1 permission

Severity Breakdown

0
Critical
2
High
16
Medium
0
Low
0
Info

Finding Categories

2
Malware Signatures
16
IoC Indicators

YARA Rules Matched

2 rules
postinstall file manipulation postinstall network communication

Requested Permissions

1 permission
*://*.youtube.com/*
Low

Detailed Findings

2 total

YARA Rule Matches

2 rules

Indicators of Compromise

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

URLs
3
IP Addresses
3
Domains
11
Strings
16

All Indicators · 16

IP
detected IP: 0::

XIOC detected IP: 0::

extracted_from_files

Hash
detected MD5 Hash: 870c677077a5d98a700be27042f06145

XIOC detected MD5 Hash: 870c677077a5d98a700be27042f06145

extracted_from_files

Domain
detected Domain: wuemeli.com

XIOC detected Domain: wuemeli.com

extracted_from_files

Domain
detected Domain: youtube.com

XIOC detected Domain: youtube.com

extracted_from_files

Domain
detected Domain: stackoverflow.com

XIOC detected Domain: stackoverflow.com

extracted_from_files

Domain
detected Domain: window.top

XIOC detected Domain: window.top

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://wuemeli.com

XIOC detected URL: https://wuemeli.com

extracted_from_files

URL
detected URL: http://stackoverflow.com/questions/2705583/how-to-simulate-a-click-with-javascript

XIOC detected URL: http://stackoverflow.com/questions/2705583/how-to-simulate-a-click-with-javascript

extracted_from_files

Domain
detected Domain: signingca1.addons.mozilla.org

XIOC detected Domain: signingca1.addons.mozilla.org

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: t43b06f7a51e32c07c70ceee1193445d2.870c677077a5d98a700be27042f06145.addons.mozilla.org

XIOC detected Domain: t43b06f7a51e32c07c70ceee1193445d2.870c677077a5d98a700be27042f06145.addons.mozilla.org

extracted_from_files

Domain
detected Domain: v.sy

XIOC detected Domain: v.sy

extracted_from_files

IP
detected Domain: yt-ad-autoskipper.zip

XIOC detected Domain: yt-ad-autoskipper.zip

extracted_from_files

Security Analysis Summary

Security Analysis Overview

This extension is a Firefox Add-ons extension published by elusive7495. Version 2021.2 has been analyzed by the Risky Plugins security platform, receiving a risk score of 30.61/100 (LOW risk) based on 18 security findings.

Risk Assessment

This extension presents low security risk. Some minor findings were detected, but nothing that would prevent typical usage. Reviewing the detailed findings below is recommended before use in sensitive environments.

Findings Breakdown

  • High: 2 finding(s)
  • Medium: 16 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

This extension is published by elusive7495 on the Firefox Add-ons marketplace. The extension has approximately 94 users.

Recommendation

Exercise caution with this extension. Review the detailed findings and ensure the requested permissions align with the extension's stated functionality before installation.

Frequently Asked Questions