@reason-machines/cli-win32-x64@0.2.411: Manual Review npm

AI Security Review

scanned 3d ago · by lpm-firewall-ai

The embedded-source candidates suggest a potentially serious credential-forwarding path with an enabled-by-default setting. The bounded native analysis does not establish loader reachability, so the transfer cannot be confirmed from inspected evidence.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

The candidate path runs when worker startup enables local logins; absent configuration defaults that setting to true.

Impact

If reachable, provider keys could be disclosed to that service; the available analysis cannot confirm execution or fully resolve the recipient.

Mechanism

Candidate code reads provider API keys from the environment and calls a device-authenticated local-subscription route on the configured API origin.

AI rationale

The embedded-source candidates suggest a potentially serious credential-forwarding path with an enabled-by-default setting. The bounded native analysis does not establish loader reachability, so the transfer cannot be confirmed from inspected evidence.

Evidence

.lpm-inspection-Y5fF7W/0-c90a860c6662.txtbin/reason.exe

Decision evidence

public snapshot

AI called this Manual Review at 72.0% confidence as Unknown with medium false-positive risk.

AI review observations

The manifest identifies a Windows CLI binary and declares no lifecycle scripts.
The sandbox bundle's `.mcp.json` match occurs in a configuration-path list.
The offline analysis contains only bounded embedded-source candidates and states that loader reachability is unproven.
An embedded-source candidate collects provider API keys from environment variables.
Other candidates show a helper forwarding values through `localSubscription`, with worker startup gated by `localLogins`; missing configuration defaults that setting to true.

Evidence against

The package manifest has no lifecycle hook, and the flagged JavaScript file is a sandbox-runtime bundle rather than an installer.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystem

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

Manifest

Source & flagged code

6 flagged

bin/runtime/srt/sandbox-runtime.mjsView file

•matchType = previous_version_dangerous_delta matchedPackage = @reason-machines/cli-win32-x64@0.2.388 matchedIdentity = npm:[redacted]:0.2.388 similarity = 0.500 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg

60mux backend dial failed (${d}) L61: `)}),l.on("error",()=>c.destroy()),l.once("close",()=>c.destroy()),c.once("close",()=>l.destroy()),l.pipe(c),c.pipe(l)}let o=ux((l)=>{a.add(l),l.once("close",()=>a.delete(l)),l.on(... L62: `).filter(Boolean);if(y===1)return[];throw Error(`ripgrep failed with exit code ${y}: ${f}`)}import{join as ur,dirname as Lx}from"path";import{fileURLToPath as Ox}from"url";import*...

High

Child Process

Package source references child process execution.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg · L60

55\r L56: `)}}),t.on("request",async(r,i)=>{r.on("error",(a)=>{C(`Client request error: ${a.message}`,{level:"error"})}),i.on("error",(a)=>{C(`Client response error: ${a.message}`,{level:"er... L57: `)),e.end(cx(s))}function Tl(e){return Buffer.from([5,e,0,1,0,0,0,0,0,0])}function lx(e){return new Promise((t)=>{let n=Buffer.alloc(0),r=(s)=>{e.off("data",a),clearTimeout(i),t(s)... ... L60: mux backend dial failed (${d}) L61: `)}),l.on("error",()=>c.destroy()),l.once("close",()=>c.destroy()),c.once("close",()=>l.destroy()),l.pipe(c),c.pipe(l)}let o=ux((l)=>{a.add(l),l.once("close",()=>a.delete(l)),l.on(... L62: `).filter(Boolean);if(y===1)return[];throw Error(`ripgrep failed with exit code ${y}: ${f}`)}import{join as ur,dirname as Lx}from"path";import{fileURLToPath as Ox}from"url";import*

High

Same File Env Network Execution

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

bin/runtime/srt/sandbox-runtime.mjsView on unpkg · L55

47\r L48: Connection blocked by network allowlist`);return}if(s||i.destroyed){i.destroy();return}let R=_t(E)??E;if(e.mitmCA&&(e.shouldTerminateTLS?.(R,k)??!0)){i.write(`HTTP/1.1 200 Connecti... L49: \r ... L55: \r L56: `)}}),t.on("request",async(r,i)=>{r.on("error",(a)=>{C(`Client request error: ${a.message}`,{level:"error"})}),i.on("error",(a)=>{C(`Client response error: ${a.message}`,{level:"er... L57: `)),e.end(cx(s))}function Tl(e){return Buffer.from([5,e,0,1,0,0,0,0,0,0])}function lx(e){return new Promise((t)=>{let n=Buffer.alloc(0),r=(s)=>{e.off("data",a),clearTimeout(i),t(s)... ... L60: mux backend dial failed (${d}) L61: `)}),l.on("error",()=>c.destroy()),l.once("close",()=>c.destroy()),c.once("close",()=>l.destroy()),l.pipe(c),c.pipe(l)}let o=ux((l)=>{a.add(l),l.once("close",()

High

Command Output Exfiltration

Source combines command execution, command-output handling, and outbound requests; review data flow before blocking.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg · L47

•matchType = normalized_sha256 matchedPackage = @reason-machines/cli-darwin-arm64@0.2.410 matchedPath = bin/runtime/srt/sandbox-runtime.mjs matchedIdentity = npm:[redacted]:0.2.410 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.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg

bin/native/win32/prebuilds/win32-x64/win32-platform.nodeView file

•path = [redacted]-x64/win32-platform.node kind = native_binary sizeBytes = 8704 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

bin/native/win32/prebuilds/win32-x64/win32-platform.nodeView on unpkg

Source & flagged code

6 flagged · loading source

bin/runtime/srt/sandbox-runtime.mjsView file

•matchType = previous_version_dangerous_delta matchedPackage = @reason-machines/cli-win32-x64@0.2.388 matchedIdentity = npm:[redacted]:0.2.388 similarity = 0.500 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg

60mux backend dial failed (${d}) L61: `)}),l.on("error",()=>c.destroy()),l.once("close",()=>c.destroy()),c.once("close",()=>l.destroy()),l.pipe(c),c.pipe(l)}let o=ux((l)=>{a.add(l),l.once("close",()=>a.delete(l)),l.on(... L62: `).filter(Boolean);if(y===1)return[];throw Error(`ripgrep failed with exit code ${y}: ${f}`)}import{join as ur,dirname as Lx}from"path";import{fileURLToPath as Ox}from"url";import*...

High

Child Process

Package source references child process execution.

bin/runtime/srt/sandbox-runtime.mjsView on unpkg · L60

55\r L56: `)}}),t.on("request",async(r,i)=>{r.on("error",(a)=>{C(`Client request error: ${a.message}`,{level:"error"})}),i.on("error",(a)=>{C(`Client response error: ${a.message}`,{level:"er... L57: `)),e.end(cx(s))}function Tl(e){return Buffer.from([5,e,0,1,0,0,0,0,0,0])}function lx(e){return new Promise((t)=>{let n=Buffer.alloc(0),r=(s)=>{e.off("data",a),clearTimeout(i),t(s)... ... L60: mux backend dial failed (${d}) L61: `)}),l.on("error",()=>c.destroy()),l.once("close",()=>c.destroy()),c.once("close",()=>l.destroy()),l.pipe(c),c.pipe(l)}let o=ux((l)=>{a.add(l),l.once("close",()=>a.delete(l)),l.on(... L62: `).filter(Boolean);if(y===1)return[];throw Error(`ripgrep failed with exit code ${y}: ${f}`)}import{join as ur,dirname as Lx}from"path";import{fileURLToPath as Ox}from"url";import*

Findings

1 Critical4 High3 Medium4 Low

CriticalPrevious Version Dangerous Deltabin/runtime/srt/sandbox-runtime.mjs

HighChild Processbin/runtime/srt/sandbox-runtime.mjs

HighSame File Env Network Executionbin/runtime/srt/sandbox-runtime.mjs

HighCommand Output Exfiltrationbin/runtime/srt/sandbox-runtime.mjs

HighKnown Malware Source Similaritybin/runtime/srt/sandbox-runtime.mjs

MediumEnvironment Vars

MediumShips Native Binarybin/native/win32/prebuilds/win32-x64/win32-platform.node

MediumStructural Risk Force Deep Review

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

LowNo License

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Related packages

More from @reason-machines

Behavioral surface

Related packages

More from @reason-machines

Source & flagged code