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@askexenow/exe-os@0.9.361: AI-agent control-surface risk | LPM Firewall

registry / @askexenow/exe-os / 0.9.361

@askexenow/exe-os@0.9.361

AI employee operating system — persistent memory, task management, and multi-agent coordination for Claude Code.

AI Security Review

scanned 9d ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. npm postinstall automatically mutates Claude Code's global configuration and registers executable hooks. Those hooks execute package code across broad Claude lifecycle events.

Static reason

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

Trigger

npm install or package upgrade on a non-Windows host with existing ~/.exe-os setup state.

Impact

Package code gains recurring execution in Claude Code sessions and can influence agent tool and prompt lifecycle.

Mechanism

postinstall registration of global MCP server, skills, and command hooks

Policy narrative

Installing or upgrading the package runs postinstall.mjs, which invokes the installer without an explicit user command. For users with existing package state, it writes a global Claude MCP entry and injects commands that execute package hook scripts on session, prompt, tool, and stop events. This is an unconsented install-time mutation of a foreign, broad AI-agent control surface.

Rationale

The lifecycle path is concrete and reaches global Claude configuration and recurring command hooks. This meets the blocking policy regardless of scanner similarity labels.

Evidence

package.jsonpostinstall.mjsdist/bin/install.jsdist/chunk-U32RDCUB.jsdist/hooks/post-tool-combined.jsdist/hooks/prompt-submit.js~/.claude.json~/.claude/settings.json~/.claude/skills~/.exe/mcp.json

Source & flagged code

17 flagged · loading source

package.jsonView file

•scripts.postinstall = node postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

dist/chunk-75H4R62K.jsView file

1// src/lib/cc-binary-detect.ts L2: import { execSync } from "child_process"; L3: import { existsSync, readFileSync, readdirSync } from "fs";

High

Child Process

Package source references child process execution.

dist/chunk-75H4R62K.jsView on unpkg · L1

dist/chunk-J73I53JO.jsView file

34import crypto from "crypto"; L35: import { execSync } from "child_process"; L36: import { existsSync as existsSync2, mkdirSync, readFileSync, unlinkSync as unlinkSync2, chmodSync } from "fs"; ... L45: import path from "path"; L46: var GGUF_URL = process.env.EXE_EMBED_MODEL_URL ?? ""; L47: var EXPECTED_SHA256 = process.env.EXE_EMBED_MODEL_SHA256 ?? ""; ... L116: resetInactivityTimer(); L117: if (!fileStream.write(value)) { L118: await new Promise((resolve) => fileStream.once("drain", resolve)); ... L147: if (attempt < MAX_RETRIES) { L148: process.stderr.write(` L149: Download attempt ${attempt} failed, retrying...

Critical

Credential Exfiltration

Source appears to send environment or credential material to an external endpoint.

dist/chunk-J73I53JO.jsView on unpkg · L34

532const HEAP_FLAG_RE = /^--(max[-_]old[-_]space[-_]size|max[-_]semi[-_]space[-_]size|max[-_]heap[-_]size)(=|$)/i; L533: const execArgv = [ L534: ...process.execArgv.filter((a) => !HEAP_FLAG_RE.test(a)),

High

Shell

Package source references shell execution.

dist/chunk-J73I53JO.jsView on unpkg · L532

postinstall.mjsView file

49try { L50: const mod = await import(pathToFileURL(path.join(packageRoot, "dist", "lib", "platform-support.js")).href); L51: if (typeof mod.windowsRefusalText === "function") text = mod.windowsRefusalText();

Medium

Dynamic Require

Package source references dynamic require/import behavior.

postinstall.mjsView on unpkg · L49

dist/chunk-6EM6USV7.jsView file

21// src/lib/exe-daemon-client.ts L22: import net from "net"; L23: import os from "os"; L24: import { spawn, execSync as execSync2 } from "child_process"; L25: import { randomUUID as randomUUID2 } from "crypto"; ... L65: function daemonPidPath() { L66: return process.env.EXE_DAEMON_PID ?? path.join(exeDir(), "exed.pid"); L67: } ... L122: attr.ppid = ppid; L123: if (process.platform !== "win32" && Number.isInteger(ppid) && ppid > 0) { L124: try { ... L192: try {

Medium

Install Persistence

Source writes installer persistence such as shell profile or service configuration.

dist/chunk-6EM6USV7.jsView on unpkg · L21

dist/bin/install.jsView file

213import { existsSync, openSync, closeSync, writeFileSync, readFileSync, unlinkSync, statSync, mkdirSync, chmodSync, renameSync, readdirSync } from "fs"; L214: import { spawn, execSync } from "child_process"; L215: import path from "path"; L216: import os from "os"; L217: var homedir = os.homedir; L218: function exeDir() { ... L228: try { L229: const pkg = JSON.parse(readFileSync(path.join(pkgRoot, "package.json"), "utf8")); L230: return pkg.version; ... L249: versionMismatchWarned = true; L250: process.stderr.write( L251: `exe-os: daemon/client version mismatch (daemon ${daemonVersion}, client ${clientVersion}). Run: exe-os-install --global

Critical

Download Execute

Source downloads or fetches remote code and executes it.

dist/bin/install.jsView on unpkg · L213

213Trigger-reachable chain: manifest.bin -> dist/bin/install.js L213: import { existsSync, openSync, closeSync, writeFileSync, readFileSync, unlinkSync, statSync, mkdirSync, chmodSync, renameSync, readdirSync } from "fs"; L214: import { spawn, execSync } from "child_process"; L215: import path from "path"; L216: import os from "os"; L217: var homedir = os.homedir; L218: function exeDir() { ... L228: try { L229: const pkg = JSON.parse(readFileSync(path.join(pkgRoot, "package.json"), "utf8")); L230: return pkg.version; ... L249: versionMismatchWarned = true; L250: process.stderr.write( L251: `exe-os: daemon/client version mismatch (daemon ${daemonVersion}, client ${clientVersion}). Run: exe-os-install --global

Critical

Trigger Reachable Dangerous Capability

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

dist/bin/install.jsView on unpkg · L213

213

dist/bin/deferred-daemon-restart.jsView file

171Cross-file remote execution chain: dist/bin/deferred-daemon-restart.js spawns dist/chunk-3OEVDGIY.js; helper contains network access plus dynamic code execution. L171: import { existsSync, openSync, closeSync, writeFileSync, unlinkSync, readFileSync } from "fs"; L172: import { spawn, execSync } from "child_process"; L173: import path from "path"; ... L184: try { L185: const pkg = JSON.parse(readFileSync(path.join(pkgRoot, "package.json"), "utf8")); L186: return pkg.version; ... L205: versionMismatchWarned = true; L206: process.stderr.write( L207: `[deferred-restart] daemon/client version mismatch (daemon ${daemonVersion}, client ${clientVersion}). Run: exe-os-install --global ... L213: const result2 = await new Promise((resolve) => { L214: const req = http.get(`http://127.0.0.1:${DAEMON_PO

High

Cross File Remote Execution Context

Source spawns a local helper that also contains network and dynamic execution context; review data flow before blocking.

dist/bin/deferred-daemon-restart.jsView on unpkg · L171

dist/bin/exe-start.shView file

•path = dist/bin/exe-start.sh kind = build_helper sizeBytes = 10459 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

dist/bin/exe-start.shView on unpkg

dist/bin/codex-reviewd-cli.jsView file

•matchType = normalized_sha256 matchedPackage = @askexenow/exe-os@0.9.344 matchedPath = dist/bin/codex-reviewd-cli.js matchedIdentity = npm:QGFza2V4ZW5vdy9leGUtb3M:0.9.344 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.

dist/bin/codex-reviewd-cli.jsView on unpkg

dist/chunk-5KLQCGI5.jsView file

•matchType = normalized_sha256 matchedPackage = @askexenow/exe-os@0.9.344 matchedPath = dist/chunk-5KLQCGI5.js matchedIdentity = npm:QGFza2V4ZW5vdy9leGUtb3M:0.9.344 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.

dist/chunk-5KLQCGI5.jsView on unpkg

dist/chunk-64HUCOAL.jsView file

•matchType = normalized_sha256 matchedPackage = @askexenow/exe-os@0.9.359 matchedPath = dist/chunk-64HUCOAL.js matchedIdentity = npm:QGFza2V4ZW5vdy9leGUtb3M:0.9.359 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.

dist/chunk-64HUCOAL.jsView on unpkg

dist/chunk-VGWGXAHT.jsView file

•matchType = token_shingles matchedPackage = @askexenow/exe-os@0.9.359 matchedPath = dist/chunk-74R44E4S.js matchedIdentity = npm:QGFza2V4ZW5vdy9leGUtb3M:0.9.359 similarity = 1.000 shingleOverlap = 48 summary = source token shingles overlapped finalized malicious source

High

Known Malware Source Similarity

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

dist/chunk-VGWGXAHT.jsView on unpkg

dist/hooks/session-end.jsView file

•matchType = token_shingles matchedPackage = @askexenow/exe-os@0.9.359 matchedPath = dist/hooks/session-end.js matchedIdentity = npm:QGFza2V4ZW5vdy9leGUtb3M:0.9.359 similarity = 1.000 shingleOverlap = 48 summary = source token shingles overlapped finalized malicious source

High

Known Malware Source Similarity

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

dist/hooks/session-end.jsView on unpkg