registry / @fleetbo/svro / 0.0.31

@fleetbo/svro@0.0.31

AI Security Review

scanned 2h ago · by lpm-firewall-ai

Installing the package automatically runs an obfuscated setup script that modifies the consuming project. No confirmed credential exfiltration or remote-code-execution chain was found in the install path.

Static reason

High-risk behavior combination matched malicious policy.

Trigger

npm install @fleetbo/svro

Impact

Creates/patches project schema, typing, TypeScript, Vite, and package configuration files.

Mechanism

postinstall project configuration mutation

Rationale

This is a documented but unusually invasive, obfuscated install hook that mutates the host project. Source inspection did not establish a concrete malicious chain, so blocking is not justified.

Evidence

package.jsondist/postinstall.cjsREADME.mdsvro.schema.jsonsrc/auto-imports.d.tstsconfig.jsonjsconfig.jsonvite.config.tsvite.config.js

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 82.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for block

package.json postinstall executes dist/postinstall.cjs on install.
dist/postinstall.cjs runs setup against INIT_CWD/project cwd.
Setup writes schema/type files and patches TypeScript, Vite, and package configuration.
Published artifacts are heavily obfuscated, hindering audit.

Evidence against

README.md explicitly documents automatic postinstall project setup.
Postinstall calls runFullSetup with skipSelfInstall:true.
The network token handler is separate from runFullSetup and is not called by the postinstall entrypoint.
No source evidence of secret harvesting, remote payload execution, or AI-agent configuration writes.

Behavioral surface

Source

DynamicRequireEnvironmentVarsFilesystemNetwork

Supply chain

HighEntropyStringsMinifiedObfuscated

Manifest

NoLicense

scanned 3 file(s), 446 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 _0x4bcb91=_0x6071;(function(_0x136fcb,_0x310a9c){const _0x3ddbb2=_0x6071,_0x4f6f18=_0x136fcb();while(!![]){try{const _0x129436=-parseInt(_0x3ddbb2(0x271))/0x1*(parseInt(_0x3d...

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/postinstall.cjsView on unpkg · L1

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

1#!/usr/bin/env node L2: function _0x3b95(){const _0x2e2eb9=["AgvYigfUzcbbDq","A2v5qxbWpxH4Ea","cN0kcMv4Cg9YDa","yM8VC3zYBYdIGjqG","BNK+oWP9oWOklW","y1n5BMmGFsa9ia","khrHyMXLoIbgBa","zxn1Bhq+oWOGia","zxreB...

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

dist/index.jsView file

1const _0x3e1d52=_0x65a9;(function(_0x1bc57a,_0x5549e1){const _0x2d7a57=_0x65a9,_0x28b31b=_0x1bc57a();while(!![]){try{const _0x5c58e0=parseInt(_0x2d7a57(0x3b5))/0x1+-parseInt(_0x2d7... 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/cli.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