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dexrelay@0.1.75: Malicious npm security report (Block) | LPM Firewall

registry / dexrelay / 0.1.75

dexrelay@0.1.75

Mac-side CLI/bootstrap runtime for the DexRelay iPhone app.

AI Security Review

scanned 2h ago · by lpm-firewall-ai

A global npm install on macOS installs persistent services and exposes a network-accessible command-execution bridge. No authentication is required before the bridge dispatches local/exec.

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

npm global install on macOS, followed by a WebSocket request to the started bridge.

Impact

A reachable peer can run arbitrary commands with the installing user's privileges and retain access through LaunchAgents.

Mechanism

postinstall persistence plus unauthenticated remote command execution

Attack narrative

On global macOS installation, postinstall launches install.sh. The installer writes and starts persistent LaunchAgents, including a bridge configured on 0.0.0.0:4615. Any connecting WebSocket client reaches the local RPC dispatcher; local/exec passes its command array directly to spawn without an authentication or peer-authorization check. This creates a concrete remote command-execution path as the installing user.

Rationale

The lifecycle-triggered installer creates persistence and starts a LAN-exposed bridge whose local/exec handler runs supplied commands without authorization. This is concrete attack behavior, not merely a package-aligned setup primitive.

Evidence

package.jsonpostinstall.jsinstall.shbridge.js$HOME/Library/LaunchAgents/com.codexrelay.bootstrap.plist$HOME/Library/Application Support/DexRelay/runtime

Network endpoints1

Source & flagged code

6 flagged · loading source

package.jsonView file

•scripts.postinstall = node ./postinstall.js

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node ./postinstall.js

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

servicectl.pyView file

•path = servicectl.py kind = build_helper sizeBytes = 13291 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

servicectl.pyView on unpkg

postinstall.jsView file

•matchType = normalized_sha256 matchedPackage = dexrelay@0.1.73 matchedPath = postinstall.js matchedIdentity = npm:ZGV4cmVsYXk:0.1.73 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.

postinstall.jsView on unpkg

110async function main() { if (shouldSkipAutoInstall()) { process.exit(0); } const installScript = path.join(__dirname, "install.sh"); const startTime = Date.now(); log("Installing the DexRelay Mac runtime. This usually takes 20-40 seconds."); log("Do not interrupt this step even if npm looks quiet for a moment."); const child = spawn("bash", [installScript], { cwd: __dirname, stdio: ["ignore", "pipe", "pipe"], env: { ...process.env, CODEX_RELAY_AUTO_INSTALL: "1", CODEX_RELAY_INSTALL_MODE: "npm[redacted]", HOMEBREW_NO_AUTO_UPDATE: process

High

Suspicious Lifecycle Evidence

Global macOS postinstall invokes install.sh automatically.

postinstall.jsView on unpkg · L110

bridge.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = dexrelay@0.1.70 matchedIdentity = npm:ZGV4cmVsYXk:0.1.70 similarity = 0.833 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

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

bridge.jsView on unpkg

Source & flagged code

6 flagged

package.jsonView file

Lines 25-65json

25 "install.sh",

26 "ios_testflight_common.py",

27 "og-dexrelay-2x.png",

28 "og-dexrelay.png",

29 "package.json",

30 "postinstall.js",

31 "prepare-ios-testflight.py",

32 "publish-ios-adhoc-ota.sh",

33 "quic-bridge-gateway.swift",

34 "rebuild-workspace-services.py",

35 "relay-connector.js",

36 "relay-server.js",

37 "run-ios-device.sh",

38 "run-ios-on-phone.sh",

39 "servicectl.py",

40 "services.registry.json",

41 "setup-guide.html",

42 "xcode-devdir.sh"

43 ],

44 "scripts": {

45 "postinstall": "node ./postinstall.js",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L45

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L45

46 "test": "./dexrelay version"

47 },

48 "keywords": [

49 "dexrelay",

50 "codex",

51 "mac",

52 "ios",

53 "cli",

54 "bootstrap"

55 ],

56 "author": "DexRelay",

57 "license": "MIT",

58 "homepage": "https://github.com/dexrelay-app/dexrelay#readme",

59 "repository": {

60 "type": "git",

61 "url": "git+https://github.com/dexrelay-app/dexrelay.git"

62 },

63 "bugs": {

64 "url": "https://github.com/dexrelay-app/dexrelay/issues"

65 },

servicectl.pyView file

•path = servicectl.py kind = build_helper sizeBytes = 13291 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

servicectl.pyView on unpkg

postinstall.jsView file

Lines 90-130javascript

90 `DexRelay ${version} is ready on this Mac.`,

91 "",

92 "Open the DexRelay iOS app. It should automatically find this Mac on local Wi-Fi.",

93 "If it does not appear, tap the Mac/Apple connect icon in the app and use QR pairing.",

94 "",

95 "Useful commands:",

bridge.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = dexrelay@0.1.70 matchedIdentity = npm:ZGV4cmVsYXk:0.1.70 similarity = 0.833 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

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

bridge.jsView on unpkg