Is Zip File Preview safe to use?

Zip File Preview has a security risk score of 81.38/100 (HIGH risk). Our security analysis detected 166 findings. Review the detailed security assessment below to understand the specific risks before installation.

What are the security risks of Zip File Preview?

Based on our automated security analysis, Zip File Preview presents high 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 "Zip File Preview" on VS Code Marketplace Safe to Install?

Name: Zip File Preview
Availability: InStock
Author: fovelas

fovelas · vscode · v1.0.0

Preview and explore the contents of ZIP files directly in Visual Studio Code.

Risk Assessment

Analyzed

81.38

out of 100

HIGH

166 security findings detected across all analyzers

VS Code extension analyzed via package manifest and static code analysis

Severity Breakdown

Critical

High

155

Medium

Low

Info

Finding Categories

Malware Signatures

152

IoC Indicators

YARA Rules Matched

9 rules(10 hits)

postinstall network communication postinstall system command postinstall crypto operations NoUseWeakRandom postinstall persistence mechanism OriginsNotVerified postinstall file manipulation postinstall obfuscation credential env files

About This Extension

Preview and explore the contents of ZIP files directly in Visual Studio Code.

Detailed Findings

11 total

YARA Rule Matches

9 rules

Indicators of Compromise

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

URLs

IP Addresses

Domains

137

Strings

152

All Indicators · 152

Domain

detected Domain: this.date

XIOC detected Domain: this.date

extracted_from_files

Domain

detected Domain: this.total

XIOC detected Domain: this.total

extracted_from_files

URL

detected URL: https://stuk.github.io/jszip/documentation/howto/read_zip.html

XIOC detected URL: https://stuk.github.io/jszip/documentation/howto/read_zip.html

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://github.com/fovelas/vscode-zipfilepreview.git

XIOC detected URL: https://github.com/fovelas/vscode-zipfilepreview.git

extracted_from_files

URL

detected URL: https://github.com/fovelas/vscode-zipfilepreview/issues

XIOC detected URL: https://github.com/fovelas/vscode-zipfilepreview/issues

extracted_from_files

Domain

detected Domain: e.nz

XIOC detected Domain: e.nz

extracted_from_files

Domain

detected Domain: b.sh

XIOC detected Domain: b.sh

extracted_from_files

Domain

detected Domain: github.com

XIOC detected Domain: github.com

extracted_from_files

Domain

detected Domain: license.md

XIOC detected Domain: license.md

extracted_from_files

Domain

detected Domain: schemas.microsoft.com

XIOC detected Domain: schemas.microsoft.com

extracted_from_files

Domain

detected Domain: microsoft.visualstudio.services.links.support

XIOC detected Domain: microsoft.visualstudio.services.links.support

extracted_from_files

Domain

detected Domain: readme.md

XIOC detected Domain: readme.md

extracted_from_files

Domain

detected Domain: r.lt

XIOC detected Domain: r.lt

extracted_from_files

Domain

detected Domain: er.es

XIOC detected Domain: er.es

extracted_from_files

Domain

detected Domain: ۦio.mx

XIOC detected Domain: ۦio.mx

extracted_from_files

Domain

detected Domain: jt.nr

XIOC detected Domain: jt.nr

extracted_from_files

Domain

detected Domain: 7zs.tj

XIOC detected Domain: 7zs.tj

extracted_from_files

Domain

detected Domain: fl.dm

XIOC detected Domain: fl.dm

extracted_from_files

Domain

detected Domain: i.de

XIOC detected Domain: i.de

extracted_from_files

Domain

detected Domain: entry.date

XIOC detected Domain: entry.date

extracted_from_files

Domain

detected Domain: b.name

XIOC detected Domain: b.name

extracted_from_files

Domain

detected Domain: b.date

XIOC detected Domain: b.date

extracted_from_files

Domain

detected Domain: event.data

XIOC detected Domain: event.data

extracted_from_files

Domain

detected Domain: message.data

XIOC detected Domain: message.data

extracted_from_files

detected Domain: unknown.zip

XIOC detected Domain: unknown.zip

extracted_from_files

detected Domain: t.zip

XIOC detected Domain: t.zip

extracted_from_files

Domain

detected Domain: this.reader.zero

XIOC detected Domain: this.reader.zero

extracted_from_files

Domain

detected Domain: u.date

XIOC detected Domain: u.date

extracted_from_files

Domain

detected Domain: te.support

XIOC detected Domain: te.support

extracted_from_files

Domain

detected Domain: i.name

XIOC detected Domain: i.name

extracted_from_files

Domain

detected Domain: chevron.open

XIOC detected Domain: chevron.open

extracted_from_files

Domain

detected Domain: colwidths.map

XIOC detected Domain: colwidths.map

extracted_from_files

Domain

detected Domain: entry.name

XIOC detected Domain: entry.name

extracted_from_files

Domain

detected Domain: wl.call

XIOC detected Domain: wl.call

extracted_from_files

Domain

detected Domain: a-this.zero

XIOC detected Domain: a-this.zero

extracted_from_files

Domain

detected Domain: hl.call

XIOC detected Domain: hl.call

extracted_from_files

Domain

detected Domain: gl.call

XIOC detected Domain: gl.call

extracted_from_files

Domain

detected Domain: ei.prototype.on.call

XIOC detected Domain: ei.prototype.on.call

extracted_from_files

detected Domain: this.zip

XIOC detected Domain: this.zip

extracted_from_files

detected Domain: oe.zip

XIOC detected Domain: oe.zip

extracted_from_files

Domain

detected Domain: qr.prototype.pause.call

XIOC detected Domain: qr.prototype.pause.call

extracted_from_files

Domain

detected Domain: qr.prototype.resume.call

XIOC detected Domain: qr.prototype.resume.call

extracted_from_files

Domain

detected Domain: a.date

XIOC detected Domain: a.date

extracted_from_files

Domain

detected Domain: ll.call

XIOC detected Domain: ll.call

extracted_from_files

Domain

detected Domain: ml.call

XIOC detected Domain: ml.call

extracted_from_files

Domain

detected Domain: r.name

XIOC detected Domain: r.name

extracted_from_files

Domain

detected Domain: this.zero

XIOC detected Domain: this.zero

extracted_from_files

Domain

detected Domain: xt.call

XIOC detected Domain: xt.call

extracted_from_files

Domain

detected Domain: xt.prototype.push.call

XIOC detected Domain: xt.prototype.push.call

extracted_from_files

Domain

detected Domain: e.file.name

XIOC detected Domain: e.file.name

extracted_from_files

Domain

detected Domain: xt.prototype.resume.call

XIOC detected Domain: xt.prototype.resume.call

extracted_from_files

Domain

detected Domain: xt.prototype.error.call

XIOC detected Domain: xt.prototype.error.call

extracted_from_files

Domain

detected Domain: xt.prototype.lock.call

XIOC detected Domain: xt.prototype.lock.call

extracted_from_files

Domain

detected Domain: qr.call

XIOC detected Domain: qr.call

extracted_from_files

Domain

detected Domain: r.prototype.cleanup.call

XIOC detected Domain: r.prototype.cleanup.call

extracted_from_files

Domain

detected Domain: qn.store

XIOC detected Domain: qn.store

extracted_from_files

detected Domain: xe.zip

XIOC detected Domain: xe.zip

extracted_from_files

Domain

detected Domain: xe.data

XIOC detected Domain: xe.data

extracted_from_files

Domain

detected Domain: o.name

XIOC detected Domain: o.name

extracted_from_files

Domain

detected Domain: o.date

XIOC detected Domain: o.date

extracted_from_files

Domain

detected Domain: vr.data

XIOC detected Domain: vr.data

extracted_from_files

Domain

detected Domain: t.total

XIOC detected Domain: t.total

extracted_from_files

Domain

detected Domain: e.work

XIOC detected Domain: e.work

extracted_from_files

Domain

detected Domain: r.head.name

XIOC detected Domain: r.head.name

extracted_from_files

Domain

detected Domain: r.work

XIOC detected Domain: r.work

extracted_from_files

Domain

detected Domain: r.total

XIOC detected Domain: r.total

extracted_from_files

Domain

detected Domain: vl.call

XIOC detected Domain: vl.call

extracted_from_files

Domain

detected Domain: r.prototype.flush.call

XIOC detected Domain: r.prototype.flush.call

extracted_from_files

Domain

detected Domain: e.total

XIOC detected Domain: e.total

extracted_from_files

Domain

detected Domain: this.bi

XIOC detected Domain: this.bi

extracted_from_files

URL

detected URL: https://github.com/fovelas/vscode-zipfilepreview#readme

XIOC detected URL: https://github.com/fovelas/vscode-zipfilepreview#readme

extracted_from_files

Domain

detected Domain: changelog.md

XIOC detected Domain: changelog.md

extracted_from_files

URL

detected URL: https://github.com/fovelas/vscode-zipfilepreview/raw/HEAD/images/demo.gif)

XIOC detected URL: https://github.com/fovelas/vscode-zipfilepreview/raw/HEAD/images/demo.gif)

extracted_from_files

Domain

detected Domain: this.options.to

XIOC detected Domain: this.options.to

extracted_from_files

Domain

detected Domain: this.work

XIOC detected Domain: this.work

extracted_from_files

detected IP: ::

XIOC detected IP: ::

extracted_from_files

URL

detected URL: http://schemas.openxmlformats.org/package/2006/content-types

XIOC detected URL: http://schemas.openxmlformats.org/package/2006/content-types

extracted_from_files

Domain

detected Domain: array.prototype.slice.call

XIOC detected Domain: array.prototype.slice.call

extracted_from_files

Domain

detected Domain: e.bi

XIOC detected Domain: e.bi

extracted_from_files

Domain

detected Domain: rn-e.bi

XIOC detected Domain: rn-e.bi

extracted_from_files

Domain

detected Domain: e.strm.data

XIOC detected Domain: e.strm.data

extracted_from_files

Domain

detected Domain: e.next

XIOC detected Domain: e.next

extracted_from_files

Domain

detected Domain: t.data

XIOC detected Domain: t.data

extracted_from_files

Domain

detected Domain: ir.prototype.cleanup.call

XIOC detected Domain: ir.prototype.cleanup.call

extracted_from_files

Domain

detected Domain: ir.prototype.resume.call

XIOC detected Domain: ir.prototype.resume.call

extracted_from_files

Domain

detected Domain: xo.call

XIOC detected Domain: xo.call

extracted_from_files

Domain

detected Domain: xi.call

XIOC detected Domain: xi.call

extracted_from_files

Domain

detected Domain: xi.prototype.processchunk.call

XIOC detected Domain: xi.prototype.processchunk.call

extracted_from_files

Domain

detected Domain: this.streaminfo.data

XIOC detected Domain: this.streaminfo.data

extracted_from_files

Domain

detected Domain: e.data

XIOC detected Domain: e.data

extracted_from_files

Domain

detected Domain: lo.call

XIOC detected Domain: lo.call

extracted_from_files

Domain

detected Domain: co.call

XIOC detected Domain: co.call

extracted_from_files

Domain

detected Domain: t.call

XIOC detected Domain: t.call

extracted_from_files

Domain

detected Domain: re.date

XIOC detected Domain: re.date

extracted_from_files

Domain

detected Domain: ir.call

XIOC detected Domain: ir.call

extracted_from_files

Domain

detected Domain: this.data

XIOC detected Domain: this.data

extracted_from_files

Domain

detected Domain: bi.data

XIOC detected Domain: bi.data

extracted_from_files

Domain

detected Domain: v.data

XIOC detected Domain: v.data

extracted_from_files

Domain

detected Domain: x.data

XIOC detected Domain: x.data

extracted_from_files

Domain

detected Domain: tostring.call

XIOC detected Domain: tostring.call

extracted_from_files

Domain

detected Domain: object.prototype.hasownproperty.call

XIOC detected Domain: object.prototype.hasownproperty.call

extracted_from_files

Domain

detected Domain: this.name

XIOC detected Domain: this.name

extracted_from_files

Domain

detected Domain: tr.call

XIOC detected Domain: tr.call

extracted_from_files

Domain

detected Domain: t.head.data

XIOC detected Domain: t.head.data

extracted_from_files

Domain

detected Domain: r.data

XIOC detected Domain: r.data

extracted_from_files

Domain

detected Domain: xr.call

XIOC detected Domain: xr.call

extracted_from_files

Domain

detected Domain: xr.prototype.push.call

XIOC detected Domain: xr.prototype.push.call

extracted_from_files

Domain

detected Domain: destroy.call

XIOC detected Domain: destroy.call

extracted_from_files

Domain

detected Domain: za.call

XIOC detected Domain: za.call

extracted_from_files

Domain

detected Domain: p.stream

XIOC detected Domain: p.stream

extracted_from_files

Domain

detected Domain: ya.call

XIOC detected Domain: ya.call

extracted_from_files

Domain

detected Domain: gi.call

XIOC detected Domain: gi.call

extracted_from_files

Domain

detected Domain: e.read

XIOC detected Domain: e.read

extracted_from_files

Domain

detected Domain: ei.call

XIOC detected Domain: ei.call

extracted_from_files

Domain

detected Domain: r.prototype.read

XIOC detected Domain: r.prototype.read

extracted_from_files

Domain

detected Domain: r.date

XIOC detected Domain: r.date

extracted_from_files

Domain

detected Domain: t.buffer.head.data

XIOC detected Domain: t.buffer.head.data

extracted_from_files

Domain

detected Domain: r.call

XIOC detected Domain: r.call

extracted_from_files

Domain

detected Domain: e.final

XIOC detected Domain: e.final

extracted_from_files

Domain

detected Domain: pa.call

XIOC detected Domain: pa.call

extracted_from_files

Domain

detected Domain: l.next

XIOC detected Domain: l.next

extracted_from_files

Domain

detected Domain: r.next

XIOC detected Domain: r.next

extracted_from_files

Domain

detected Domain: a.next

XIOC detected Domain: a.next

extracted_from_files

Domain

detected Domain: t.corkedrequestsfree.next

XIOC detected Domain: t.corkedrequestsfree.next

extracted_from_files

Domain

detected Domain: i.data

XIOC detected Domain: i.data

extracted_from_files

Domain

detected Domain: i.next

XIOC detected Domain: i.next

extracted_from_files

Domain

detected Domain: n.data

XIOC detected Domain: n.data

extracted_from_files

Domain

detected Domain: n.next

XIOC detected Domain: n.next

extracted_from_files

Domain

detected Domain: this.constructor.name

XIOC detected Domain: this.constructor.name

extracted_from_files

Domain

detected Domain: this.next

XIOC detected Domain: this.next

extracted_from_files

Domain

detected Domain: t.next

XIOC detected Domain: t.next

extracted_from_files

Domain

detected Domain: xf.call

XIOC detected Domain: xf.call

extracted_from_files

Domain

detected Domain: e.call

XIOC detected Domain: e.call

extracted_from_files

Domain

detected Domain: cf.call

XIOC detected Domain: cf.call

extracted_from_files

Domain

detected Domain: object.prototype.tostring.call

XIOC detected Domain: object.prototype.tostring.call

extracted_from_files

Domain

detected Domain: this.tail.next

XIOC detected Domain: this.tail.next

extracted_from_files

Domain

detected Domain: this.head.data

XIOC detected Domain: this.head.data

extracted_from_files

Domain

detected Domain: this.head.next

XIOC detected Domain: this.head.next

extracted_from_files

detected IP: ::bef

XIOC detected IP: ::bef

extracted_from_files

detected IP: e::bef

XIOC detected IP: e::bef

extracted_from_files

detected IP: e::

XIOC detected IP: e::

extracted_from_files

detected IP: ::0

XIOC detected IP: ::0

extracted_from_files

Domain

detected Domain: schemas.openxmlformats.org

XIOC detected Domain: schemas.openxmlformats.org

extracted_from_files

Domain

detected Domain: stuk.github.io

XIOC detected Domain: stuk.github.io

extracted_from_files

Domain

detected Domain: www.w3.org

XIOC detected Domain: www.w3.org

extracted_from_files

URL

detected URL: http://schemas.microsoft.com/developer/vsx-schema-design/2011

XIOC detected URL: http://schemas.microsoft.com/developer/vsx-schema-design/2011

extracted_from_files

URL

detected URL: http://schemas.microsoft.com/developer/vsx-schema/2011

XIOC detected URL: http://schemas.microsoft.com/developer/vsx-schema/2011

extracted_from_files

URL

detected URL: https://github.com/fovelas/vscode-zipfilepreview/blob/HEAD/LICENSE.md).

XIOC detected URL: https://github.com/fovelas/vscode-zipfilepreview/blob/HEAD/LICENSE.md).

extracted_from_files

Domain

detected Domain: bs.call

XIOC detected Domain: bs.call

extracted_from_files

Domain

detected Domain: i.gzhead.name

XIOC detected Domain: i.gzhead.name

extracted_from_files

Domain

detected Domain: l.call

XIOC detected Domain: l.call

extracted_from_files

Security Analysis Summary

Security Analysis Overview

Zip File Preview is a Visual Studio Code Marketplace extension published by fovelas. Version 1.0.0 has been analyzed by the Risky Plugins security platform, receiving a risk score of 81.38/100 (HIGH risk) based on 166 security findings.

Risk Assessment

This extension presents critical security risk. Severe issues were detected, potentially including malware indicators, exposed secrets, or dangerous behaviors. Installation is strongly discouraged until these issues are addressed.

Findings Breakdown

High: 10 finding(s)
Medium: 155 finding(s)
Low: 1 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

Zip File Preview is published by fovelas on the Visual Studio Code Marketplace marketplace. The extension has approximately 62 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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Risk Assessment

Severity Breakdown

Finding Categories

YARA Rules Matched

About This Extension

Detailed Findings

DEP-jszip-3.10.1

YARA Rule Matches

postinstall network communication

postinstall system command

postinstall crypto operations

NoUseWeakRandom

postinstall persistence mechanism

OriginsNotVerified

postinstall file manipulation

postinstall obfuscation

credential env files

Indicators of Compromise

All Indicators · 152

Security Analysis Summary

Security Analysis Overview

Risk Assessment

Findings Breakdown

What Was Analyzed

Developer Information

Recommendation

Frequently Asked Questions

Similar Extensions

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Copilot MCP + Agent Skills Manager

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