@reason-machines/cli-darwin-x64@0.2.407: Manual Review npm

AI Security Review

scanned 4d ago · by lpm-firewall-ai

The package manifest has no install lifecycle hook, and the inspected runtime excerpt does not establish agent configuration changes. The 78 MB native executable remains materially unresolved by bounded analysis, so manual review is appropriate.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review

Trigger

Unknown; potentially when bin/reason is run.

Impact

Unknown; the available evidence is insufficient to determine the executable's effects.

Mechanism

The inspected analysis does not establish which embedded code is reachable or what other behavior the executable contains.

AI rationale

The package manifest has no install lifecycle hook, and the inspected runtime excerpt does not establish agent configuration changes. The 78 MB native executable remains materially unresolved by bounded analysis, so manual review is appropriate.

Evidence

bin/reason.lpm-inspection-2eXuAY/0-37bba5347c9f.txtbin/runtime/srt/sandbox-runtime.mjs

Decision evidence

public snapshot

AI called this Manual Review at 83.0% confidence as Unknown with medium false-positive risk.

AI review observations

package.json identifies this as a macOS x64 CLI package and contains no lifecycle hook or JavaScript entrypoint.
The required runtime excerpt lists agent-related paths but does not establish that the package writes to them.
The offline analysis identifies bin/reason as a 78 MB Mach-O executable, but its bounded source windows cannot establish reachability or rule out other behavior.

Evidence against

No concrete attack behavior is established by the inspected JavaScript excerpt or native analysis.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystem

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationUrlStrings

Manifest

NoLicense

scanned 1 file(s), 526 KB of source, external domains: 127.0.0.1

Source & flagged code

6 flagged

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

60mux backend dial failed (${q}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=OH((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(N===1)return[];throw Error(`ripgrep failed with exit code ${N}: ${H}`)}import{join as V0,dirname as kH}from"path";import{fileURLToPath as fH}from"url";import*...

High

Child Process

Package source references child process execution.

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

55\r L56: `)}}),J.on("request",async(Q,Y)=>{Q.on("error",(G)=>{Z(`Client request error: ${G.message}`,{level:"error"})}),Y.on("error",(G)=>{Z(`Client response error: ${G.message}`,{level:"er... L57: `)),$.end(MH(W))}function Z7($){return Buffer.from([5,$,0,1,0,0,0,0,0,0])}function UH($){return new Promise((J)=>{let X=Buffer.alloc(0),Q=(W)=>{$.off("data",G),clearTimeout(Y),J(W)... ... L60: mux backend dial failed (${q}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=OH((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(N===1)return[];throw Error(`ripgrep failed with exit code ${N}: ${H}`)}import{join as V0,dirname as kH}from"path";import{fileURLToPath as fH}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(W||Y.destroyed){Y.destroy();return}let P=jJ(B)??B;if($.mitmCA&&($.shouldTerminateTLS?.(P,C)??!0)){Y.write(`HTTP/1.1 200 Connecti... L49: \r ... L55: \r L56: `)}}),J.on("request",async(Q,Y)=>{Q.on("error",(G)=>{Z(`Client request error: ${G.message}`,{level:"error"})}),Y.on("error",(G)=>{Z(`Client response error: ${G.message}`,{level:"er... L57: `)),$.end(MH(W))}function Z7($){return Buffer.from([5,$,0,1,0,0,0,0,0,0])}function UH($){return new Promise((J)=>{let X=Buffer.alloc(0),Q=(W)=>{$.off("data",G),clearTimeout(Y),J(W)... ... L60: mux backend dial failed (${q}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=OH((M)=>{G.add(M),M.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-linux-x64-musl@0.2.398 matchedPath = bin/runtime/srt/sandbox-runtime.mjs matchedIdentity = npm:[redacted]:0.2.398 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/Background/Reason.app/Contents/MacOS/ReasonBackgroundIdentityView file

•path = bin/Background/Reason.[redacted] kind = native_binary sizeBytes = 34896 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

bin/Background/Reason.app/Contents/MacOS/ReasonBackgroundIdentityView on unpkg

package.jsonView file

1{ "name": "@reason-machines/cli-darwin-x64", "version": "0.2.407", "description": "Reason CLI native binary for darwin-x64", "os": [ "darwin" ], "cpu": [ "x64" ], "files": [ "bin", "README.md", "LICENSE", "THIRD_PARTY_NOTICES.txt" ], "publishConfig": { "access": "public", "provenance": false },

Low

Suspicious Lifecycle Evidence

package.json identifies this as a macOS x64 CLI package and contains no lifecycle hook or JavaScript entrypoint.

package.jsonView on unpkg · L1

Source & flagged code

6 flagged · loading source

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

60mux backend dial failed (${q}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=OH((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(N===1)return[];throw Error(`ripgrep failed with exit code ${N}: ${H}`)}import{join as V0,dirname as kH}from"path";import{fileURLToPath as fH}from"url";import*...

High

Child Process

Package source references child process execution.

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

55\r L56: `)}}),J.on("request",async(Q,Y)=>{Q.on("error",(G)=>{Z(`Client request error: ${G.message}`,{level:"error"})}),Y.on("error",(G)=>{Z(`Client response error: ${G.message}`,{level:"er... L57: `)),$.end(MH(W))}function Z7($){return Buffer.from([5,$,0,1,0,0,0,0,0,0])}function UH($){return new Promise((J)=>{let X=Buffer.alloc(0),Q=(W)=>{$.off("data",G),clearTimeout(Y),J(W)... ... L60: mux backend dial failed (${q}) L61: `)}),M.on("error",()=>O.destroy()),M.once("close",()=>O.destroy()),O.once("close",()=>M.destroy()),M.pipe(O),O.pipe(M)}let U=OH((M)=>{G.add(M),M.once("close",()=>G.delete(M)),M.on(... L62: `).filter(Boolean);if(N===1)return[];throw Error(`ripgrep failed with exit code ${N}: ${H}`)}import{join as V0,dirname as kH}from"path";import{fileURLToPath as fH}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.

Findings

4 High3 Medium5 Low

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/Background/Reason.app/Contents/MacOS/ReasonBackgroundIdentity

MediumStructural Risk Force Deep Review

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

LowNo License

LowSuspicious Lifecycle Evidencepackage.json

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