OpenVSX Registry Verified

JCL Check

4bf7be61-c694-5190-81c7-bc0a55dcee9d | v3.0.4
100/ 100
CRITICAL risk
+15 since v3.0.3
Risk verdict
Do not install

Score-based assessment (critical risk, 100/100). No analyst review available.

Analysis record

Analysed
6 days ago
Version
v3.0.4
Artifact
SHA256 E89…A00
Source
Findings (non-IoC)

Evidence ledger

Ranked by severity · findings with a source location link to the code viewer

129 detail rows

YARA Rule Matches

20 rules
SeverityRuleHitsFilesMetadata
HIGHsupply chain sourcemap appended iife 1
out/dependencies.js.map
-
LOWcredential env files 6
out/extension.js.mapout/extension.jsout/dependencies.js.map +3 more
-
LOWNoDisableTlsRejectUnauthorized 1
out/zowe.js.map
-
LOWpostinstall persistence mechanism 4
out/extension.js.mapout/dependencies.js.mapout/zowe.js.map +1 more
-
LOWNoDisableSanitizeHtml 2
out/dependencies.js.mapout/zowe.js.map
-
LOWpostinstall file download 5
out/dependencies.js.mapout/zowe.js.mapout/dependencies.js +2 more
-
LOWNoUseWeakRandom 2
out/dependencies.js.mapout/dependencies.js
-
LOWpostinstall crypto operations 10
prebuilds/keyring.linux-arm64-gnu.nodeout/zowe.js.mapout/dependencies.js +7 more
-
LOWpostinstall file manipulation 14
prebuilds/keyring.linux-arm64-gnu.nodeout/dependencies.jsout/zowe.js +11 more
-
LOWpostinstall system command 18
out/dependencies.jsprebuilds/keyring.linux-arm64-gnu.nodeprebuilds/keyring.linux-arm-gnueabihf.node +15 more
-
LOWNoUseSocketManually 1
out/dependencies.js.map
-
LOWpostinstall registry modification 9
prebuilds/keyring.linux-arm64-gnu.nodeprebuilds/keyring.linux-arm64-musl.nodeprebuilds/keyring.linux-x64-musl.node +6 more
-
LOWpostinstall obfuscation 9
out/extension.js.mapout/broadcom.js.mapout/ThirdPartyNotices.txt +6 more
-
LOWpostinstall network communication 16
prebuilds/keyring.linux-arm64-gnu.nodeprebuilds/keyring.linux-arm64-musl.nodeout/zowe.js.map +13 more
-
LOWpostinstall environment access 1
out/zowe.js
-
LOWUsingShellInterpreterWhenExecutingOSCommands 2
out/dependencies.js.mapout/zowe.js.map
-
LOWCreatingCookiesWithoutTheSecureFlag 1
out/zowe.js.map
-
LOWServerHostnameNotVerified 2
out/zowe.js.mapout/zowe.js
-
LOWDebuggerStatementsShouldNotBeUsed 2
out/dependencies.js.mapout/dependencies.js
-
LOWUsingCommandLineArguments 4
out/dependencies.js.mapout/zowe.js.mapout/dependencies.js +1 more
-

Network Indicators

Concrete URLs, domains, IPs, emails, and hashes extracted from the analyzed artifact.

383 total
...

Network indicators are queued for lazy loading

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Publisher Evidence

Low

BroadcomMFD

Publisher identity, store signals, distribution reach, and warning signals used for context. Treat this as supporting evidence, not a clean bill of health.

65
Noisy-finding weight
x1.00
Publisher domain
No domain
Missing
Store verification signal
Verified publisher
Verified
Extension portfolio
19
Portfolio

12 evidence rows available.

Finding Categories

1
Malware Signatures
12
Obfuscation
383
IoC Indicators

YARA Rules Matched

20 rules(110 hits)
supply chain sourcemap appended iife credential env files NoDisableTlsRejectUnauthorized postinstall persistence mechanism NoDisableSanitizeHtml postinstall file download NoUseWeakRandom postinstall crypto operations postinstall file manipulation postinstall system command NoUseSocketManually postinstall registry modification postinstall obfuscation postinstall network communication postinstall environment access UsingShellInterpreterWhenExecutingOSCommands +4 more

Security Analysis Summary

Security Analysis Overview

JCL Check is a OpenVSX Registry extension published by BroadcomMFD. Version 3.0.4 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 512 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

  • Critical: 11 finding(s)
  • High: 1 finding(s)
  • Medium: 384 finding(s)
  • Low: 116 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

JCL Check is published by BroadcomMFD on the OpenVSX Registry marketplace.

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.

Open VSX version history

Risk trend by version

2 analyzed versions. Each point is the latest successful scan for that version; failed zero-score scans are hidden. Dates are based on first seen by risky plugins.

Selected
100
Change since first
+15
Change from previous
+15
Versions:
First analyzed version
3.0.3
Mar 22, 2026
Risk range
85 to 100
Across analyzed versions
Latest analyzed version
3.0.4
Jul 22, 2026
Selected version
critical
Version
v3.0.4
1 months ago
Risk score
100
Findings
512
Change vs previous
+15

Pick any point on the chart to explore that version's code below.

About This Extension

Code4Z extension for JCLCheck linting and report generation

Frequently Asked Questions