OpenVSX Registry Verified

SharpLsp

5c5060b6-663b-5752-9cc5-1adc3cf7e4cc | v0.21.0
100/ 100
CRITICAL risk
No change since v0.20.0
Risk verdict
Do not install

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

Analysis record

Analysed
Yesterday
Version
v0.21.0
Artifact
SHA256 D39…A84
Source
Findings (non-IoC)

Evidence ledger

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

351 detail rows
Showing 25 of 230 · highest severity first

YARA Rule Matches

14 rules
SeverityRuleHitsFilesMetadata
HIGHNjrat

Njrat

1
bin/all/Basic.Reference.Assemblies.Net100.dll
botherder https://github.com/botherder FP 10%
LOWpostinstall persistence mechanism 10
bin/all/sharplsp-sidecar-fsharpdist/extension.jspackage.json +7 more
-
LOWcredential env files 7
dist/extension.jspackage.nls.zh-cn.jsonbin/linux-x64/netcoredbg/netcoredbg +4 more
-
LOWpostinstall network communication 11
package.nls.ja.jsondist/extension.jsLICENSE.txt +8 more
-
LOWpostinstall obfuscation 4
dist/extension.jsbin/all/SharpLsp.Sidecar.CSharp.xmlbin/linux-x64/netcoredbg/netcoredbg +1 more
-
LOWpostinstall registry modification 4
dist/extension.jsbin/all/SharpLsp.Sidecar.CSharp.xmlbin/all/BuildHost-netcore/Microsoft.CodeAnalysis.Workspaces.MSBuild.Contracts.pdb +1 more
-
LOWpostinstall system command 24
bin/all/SharpLsp.Sidecar.FSharp.deps.jsonbin/all/BuildHost-netcore/Microsoft.CodeAnalysis.Workspaces.MSBuild.BuildHost.deps.jsonbin/linux-x64/netcoredbg/libdbgshim.so +21 more
-
LOWpostinstall crypto operations 12
bin/all/SharpLsp.Sidecar.FSharp.deps.jsonbin/all/SharpLsp.Sidecar.Common.xmlbin/linux-x64/netcoredbg/libdbgshim.so +9 more
-
LOWpostinstall file manipulation 12
bin/linux-x64/netcoredbg/netcoredbgbin/linux-x64/netcoredbg/libdbgshim.sopackage.nls.ja.json +9 more
-
LOWUsingShellInterpreterWhenExecutingOSCommands 1
dist/extension.js
-
LOWDebuggerStatementsShouldNotBeUsed 25
package.jsonbin/all/Microsoft.CodeAnalysis.Features.dllbin/all/es/FSharp.Compiler.Service.resources.dll +22 more
-
LOWSQLInjection 1
dist/extension.js
-
LOWpostinstall file download 8
dist/extension.jsbin/all/SharpLsp.Sidecar.CSharp.xmlbin/linux-x64/netcoredbg/netcoredbg +5 more
-
LOWNoUseWeakRandom 1
dist/extension.js
-

Network Indicators

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

981 total
...

Network indicators are queued for lazy loading

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Publisher Evidence

Low

Nimblesite

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

60
Noisy-finding weight
x1.00
Publisher domain
No domain
Missing
Store verification signal
Verified publisher
Verified
Extension portfolio
7
Portfolio

12 evidence rows available.

Finding Categories

1
Malware Signatures
227
Obfuscation
981
IoC Indicators

YARA Rules Matched

14 rules(121 hits)
Njrat postinstall persistence mechanism credential env files postinstall network communication postinstall obfuscation postinstall registry modification postinstall system command postinstall crypto operations postinstall file manipulation UsingShellInterpreterWhenExecutingOSCommands DebuggerStatementsShouldNotBeUsed SQLInjection postinstall file download NoUseWeakRandom

Security Analysis Summary

Security Analysis Overview

SharpLsp is a OpenVSX Registry extension published by Nimblesite. Version 0.21.0 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 1332 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: 227 finding(s)
  • High: 1 finding(s)
  • Medium: 981 finding(s)
  • Low: 123 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

SharpLsp is published by Nimblesite 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

10 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
No change
Versions:
First analyzed version
0.1.0
Jun 9, 2026
Risk range
85 to 100
Across analyzed versions
Latest analyzed version
0.21.0
Sep 12, 2026
Selected version
critical
Version
v0.21.0
1 weeks ago
Risk score
100
Findings
1332
Change vs previous
No change

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

About This Extension

The open-source .NET Language Server — C# and F# intelligence for every editor. Zero licenses. Zero vendor lock-in.

Frequently Asked Questions