registry / @fleetbo/svro / 0.0.29

@fleetbo/svro@0.0.29

AI Security Review

scanned 2h ago · by lpm-firewall-ai

Installing the package executes an obfuscated postinstall program in the consuming project's root. It automatically modifies project configuration and can invoke npm install.

Static reason

High-risk behavior combination matched malicious policy.

Trigger

npm install @fleetbo/svro

Impact

Unexpected persistent changes to application build/configuration files and dependency state.

Mechanism

obfuscated install-time project configuration mutation

Rationale

This is an unconsented, obfuscated install hook that persistently alters the consuming project, so it is unsafe to publish without warning. The inspected source does not establish a concrete malicious exfiltration, remote-code, or AI-control-hijack chain.

Evidence

package.jsondist/postinstall.cjsREADME.md.envsvro.schema.jsonindex.d.tstsconfig.jsonjsconfig.jsonvite.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 npm install.
dist/postinstall.cjs is deliberately obfuscated and uses fs, path, execSync, and HTTPS.
dist/postinstall.cjs invokes setup against INIT_CWD/project root.
README.md confirms install-time .env, package.json, ts/jsconfig, Vite config, schema, and type-file mutation.
dist/postinstall.cjs can run npm install and inject a Vite middleware/plugin.

Evidence against

No source evidence of credential harvesting outside Fleetbo setup inputs.
No foreign AI-agent control-surface writes found.
No confirmed remote payload download or arbitrary code-evaluation path found.

Behavioral surface

Source

DynamicRequireEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsMinifiedObfuscated

Manifest

NoLicense

scanned 3 file(s), 441 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: function _0x2098(_0x24ec1,_0x4811fc){_0x24ec1=_0x24ec1-0x105;const _0x315f65=_0x315f();let _0x209883=_0x315f65[_0x24ec1];if(_0x2098['bMGjCO']===undefined){var _0x55b67b=function(_0...

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/postinstall.cjsView on unpkg · L1

dist/index.jsView file

1const _0x2ba119=_0x5d5c;(function(_0x3202f3,_0x1e5879){const _0x34d861=_0x5d5c,_0x95db48=_0x3202f3();while(!![]){try{const _0x5889e6=parseInt(_0x34d861(0x1c2))/0x1+parseInt(_0x34d8... 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