registry / Credential exfiltration / @reason-machines/cli-linux-x64

@reason-machines/cli-linux-x64

Reason CLI native binary for linux-x64

This report shows the evidence for @reason-machines/cli-linux-x64@0.2.541. 29 of 286 known versions are blocked or flagged. The newest version, 0.2.544, is allowed. See all versions.

AI Security Review

scanned 2h ago · by lpm-firewall-ai

The inspected native source shows default-on forwarding of saved third-party access tokens to the Reason API, without recipient-specific consent. This is concrete credential disclosure, so the package should be blocked.

Static reason

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

Trigger

Starting a connected worker with the documented default local-login setting.

Impact

Third-party account access tokens leave the machine; the source indicates refresh tokens are withheld.

Mechanism

The worker reads local provider credential stores and periodically submits changed access tokens in API request bodies.

Attack narrative

When a connected worker starts with local-login forwarding enabled, the default behavior, it reads saved credentials for local coding-agent accounts and periodically sends current access tokens to the local-subscription API endpoint. The source identifies Reason as the recipient and shows no per-recipient consent guard in this startup flow. It withholds refresh tokens, but the forwarded access tokens still expose third-party accounts.

AI rationale

Evidence

.lpm-inspection-EObbxo/0-6612e50a60d5.txt.credentials.jsonauth.json.grok/auth.json

Network endpoints1

/app/local-runtime/local-subscription

Decision evidence

public snapshot

AI called this Malicious at 98.0% confidence as Malware with low false-positive risk.

Evidence for block

The binary reads saved access credentials from local Claude, OpenAI, and other coding-agent account stores.
It submits newly observed provider credentials in request bodies to the local-subscription API route.
Connected worker startup invokes the transfer loop when local-login forwarding is enabled.
The embedded CLI text says local-login forwarding is on by default and that Reason receives each login’s current access token.
The source says refresh tokens are not forwarded.

Evidence against

The native analysis contains bounded embedded-source excerpts and cannot establish every aspect of binary behavior.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShellWebSocket

Supply chain

HighEntropyStringsMinifiedPossibleObfuscation

Source & flagged code

23 flagged

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

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=px((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 dr,dirname as Vx}from"path";import{fileURLToPath as Fx}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: ${a.message}`,{level:"er... L57: `)),e.end(fx(s))}function _l(e){return Buffer.from([5,e,0,1,0,0,0,0,0,0])}function dx(e){return new Promise((t)=>{let n=Buffer.alloc(0),r=(s)=>{e.off("data",a),clearTimeout(i),t(s)... ... L60: mux backend dial failed (${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=px((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 dr,dirname as Vx}from"path";import{fileURLToPath as Fx}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: ${a.message}`,{level:"er... L57: `)),e.end(fx(s))}function _l(e){return Buffer.from([5,e,0,1,0,0,0,0,0,0])}function dx(e){return new Promise((t)=>{let n=Buffer.alloc(0),r=(s)=>{e.off("data",a),clearTimeout(i),t(s)... ... L60: mux backend dial failed (${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=px((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

bin/vm-hands/index-gmsadq51.jsView file

1// @bun L2: import{hn}from"./vm-hands-entry-lite-q1yvw4xz.js";import{Fi,he,e}from"./vm-hands-entry-lite-pzj5s203.js";var Ce=he(function(C6,ly){var __dirname="/[redacted]... L3: `)!=-1,y=this._styles,E=y.length;while(E--){var S=s[y[E]];if(g=S.open+g.replace(S.closeRe,S.open)+S.close,b)g=g.replace(a,function(x){return S.close+x+S.open})}return g}n.setTheme=... L4: `).join(` L5: `+_),p.push(w+"m+"+r.exports.humanize(this.diff)+"\x1B[0m")}else p[0]=a()+f+" "+p[0]}function a(){if(t.inspectOpts.hideDate)return"";return new Date().toISOString()+" "}function l(... L6: `)}function c(p){if(p)process.env.DEBUG=p;else delete process.env.DEBUG}function u(){return process.env.DEBUG}function d(p){p.inspectOpts={};let f=Object.keys(t.inspectOpts);for(le... ... L8: `:` L9: `,p=d.whitespace?" = ":"=",f=

Critical

Remote Asset Decode Execute

Source fetches a remote non-code asset, decodes its contents, and dynamically executes the decoded payload.

bin/vm-hands/index-gmsadq51.jsView on unpkg · L1

271`).map((i)=>i+` L272: `);if(r)n.pop();else n.push(n.pop().slice(0,-1));return n}function _C(t){let r=[],n,i;for(let s=0;s<t.length;s++){if(n=t[s],n.added)i=1;else if(n.removed)i=-1;else i=0;r.push([i,n.... L273: `)}var Pi=(t)=>(r,n,i,s)=>{let o=i?Object.assign(i,{async:!1}):{async:!1},a=r._zod.run({value:n,issues:[]},o);if(a instanceof Promise)throw new Gr;if(a.issues.length){let l=new(s?....

High

Eval

Package source references dynamic code evaluation.

bin/vm-hands/index-gmsadq51.jsView on unpkg · L271

239`,CHAR_NO_BREAK_SPACE:"\xA0",CHAR_PERCENT:"%",CHAR_PLUS:"+",CHAR_QUESTION_MARK:"?",CHAR_RIGHT_ANGLE_BRACKET:">",CHAR_RIGHT_CURLY_BRACE:"}",CHAR_RIGHT_SQUARE_BRACKET:"]",CHAR_SEMICO... L240: GFS4: `),console.error(g)};if(!n[l]){if(p=global[l]||[],d(n,p),n.close=function(g){function b(y,E){return g.call(n,y,function(S){if(!S)w();if(typeof E==="function")E.apply(this,arg... L241: `:""},this._extScope=D,this._scope=new n.Scope({parent:D}),this._nodes=[new v]}toString(){return this._root.render(this.opts)}name(D){return this._scope.name(D)}scopeName(D){return...

bin/runtime/srt/vendor/seccomp/x64/apply-seccompView file

•path = [redacted]-seccomp kind = native_binary sizeBytes = 759816 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

bin/runtime/srt/vendor/seccomp/x64/apply-seccompView on unpkg

bin/vm-hands/vm-hands-entry-lite-4r1yn35v.jsView file

•matchType = normalized_sha256 matchedPackage = @reason-machines/cli-linux-arm64-musl@0.2.529 matchedPath = bin/vm-hands/vm-hands-entry-lite-4r1yn35v.js matchedIdentity = npm:[redacted]:0.2.529 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High