registry / Credential exfiltration / @viraatdas/rudder / 2.16.4

@viraatdas/rudder@2.16.4

A TUI for managing coding agents: run Claude Code, Codex and opencode side by side, each in its own isolated jj workspace.

AI Security Review

scanned 7d ago · by lpm-firewall-ai

The postinstall hook performs Jujutsu setup, while the cloud launch path forwards an existing Claude session credential by default. Because launch has no separate credential approval or destination host restriction, warn about conditional exposure without asserting malicious intent.

Static reason

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

Trigger

A user runs a cloud launch command from a repository.

Impact

The cloud recipient may access the copied Claude session credential while it remains valid.

Mechanism

The launch path includes credentials by default, retrieves Claude Code credentials from macOS Keychain, stages them in the snapshot, and sends the archive to the configured cloud control plane. The source shows no separate credential approval or destination host restriction.

AI rationale

Evidence

dist/cloud.js

Network endpoints1

rudder-cloud-control.fly.dev

Decision evidence

public snapshot

AI called this Suspicious at 91.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The manifest runs a postinstall script that checks for Jujutsu and installs it with the system package manager if missing.
Explicit cloud launch commands create snapshots with credential inclusion enabled by default.
On macOS, the cloud path reads Claude Code credentials from Keychain and stages them as a credentials file.
The snapshot archive is sent in a POST to the cloud launch endpoint using the configured control plane.
The default control plane is Rudder Cloud, but the URL setting accepts other HTTPS destinations without a host allowlist.
The other cited agent paths read local Claude conversation records and the local Codex model cache.

Evidence against

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkWebSocket

Supply chain

HighEntropyStringsMinifiedUrlStrings

Manifest

Source & flagged code

17 flagged

package.jsonView file

•scripts.postinstall = node scripts/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

dist/util.jsView file

•matchType = normalized_sha256 matchedPackage = @viraatdas/rudder@2.14.69 matchedPath = dist/util.js matchedIdentity = npm:QHZpcmFhdGRhcy9ydWRkZXI:2.14.69 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/util.jsView on unpkg

1import { spawn, spawnSync } from "node:child_process"; L2: import { createHash, randomUUID } from "node:crypto"; ... L7: import readline from "node:readline/promises"; L8: import { stdin as input, stdout as output } from "node:process"; L9: const DEFAULT_PATH = [ ... L24: export function rudderHome() { L25: return path.resolve(process.env.RUDDER_HOME?.trim() || path.join(os.homedir(), ".rudder")); L26: } ... L65: const raw = await fsp.readFile(filePath, "utf8"); L66: return JSON.parse(raw); L67: } ... L160: const TOOL_INSTALL_HINTS = {

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/util.jsView on unpkg · L1

dist/improve/schedule.jsView file

7Trigger-reachable persistence chain: scripts.start -> dist/index.js -> dist/main.js -> dist/improve/index.js -> dist/improve/schedule.js L7: function plistPath() { L8: return path.join(os.homedir(), "Library", "LaunchAgents", `${LAUNCHD_LABEL}.plist`); L9: } ... L49: export async function scheduleCommand(action) { L50: if (process.platform !== "darwin") { L51: throw new Error("rudder improve schedule currently supports macOS (launchd) only; run `rudder improve run` from cron/systemd on other platforms."); ... L59: // Re-bootstrap idempotently: boot out any prior registration first. L60: await runCommand("launchctl", ["bootout", `gui/${uid}/${LAUNCHD_LABEL}`], { allowFailure: true }); L61: const bootstrap = await runCommand("launchctl", ["bootstrap", `gui/${uid}`, plistPath()], {

High

Trigger Reachable Persistence

A manifest entrypoint or package-local install chain reaches persistence behavior.

dist/improve/schedule.jsView on unpkg · L7

7function plistPath() { L8: return path.join(os.homedir(), "Library", "LaunchAgents", `${LAUNCHD_LABEL}.plist`); L9: } ... L49: export async function scheduleCommand(action) { L50: if (process.platform !== "darwin") { L51: throw new Error("rudder improve schedule currently supports macOS (launchd) only; run `rudder improve run` from cron/systemd on other platforms."); ... L59: // Re-bootstrap idempotently: boot out any prior registration first. L60: await runCommand("launchctl", ["bootout", `gui/${uid}/${LAUNCHD_LABEL}`], { allowFailure: true }); L61: const bootstrap = await runCommand("launchctl", ["bootstrap", `gui/${uid}`, plistPath()], {

Medium

Install Persistence

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

dist/improve/schedule.jsView on unpkg · L7

dist/cloud.jsView file

•Manifest-reachable source captures an API credential, sends it to a fixed unofficial gateway, and persists that redirection in agent or shell configuration. dist/cloud.js: "~/.claude/.credentials.json", "~/.claude/settings.json", "~/.claude/CLAUDE.md", "~/.claude.json", "~/.codex/auth.json", "~/.codex/config.toml", "~/.codex/AGENTS.md", "~/.codex/hooks.json",

High

Credential Redirect Persistence

Manifest-reachable source sends a prompted API credential to a fixed unofficial gateway and persists the redirection.

dist/cloud.jsView on unpkg

scripts/postinstall.mjsView file

5// install: on any problem it prints guidance and exits 0. L6: import { spawnSync } from "node:child_process"; L7: ... L13: try { L14: const probe = process.platform === "win32" ? "where" : "which"; L15: return spawnSync(probe, [cmd], { stdio: "ignore" }).status === 0; ... L34: warn(" Rust: cargo install jj-cli"); L35: warn(" Other: https://jj-vcs.github.io/jj/latest/install-and-setup/"); L36: warn("Then run: rudder doctor"); ... L39: function main() { L40: if (process.env.RUDDER_SKIP_POSTINSTALL) { L41: return;

High

Sandbox Evasion Gated Capability

Source gates dangerous network, credential, or execution behavior behind CI, host, platform, time, or geo fingerprint checks.

scripts/postinstall.mjsView on unpkg · L5

•matchType = normalized_sha256 matchedPackage = @viraatdas/rudder@2.14.69 matchedPath = scripts/postinstall.mjs matchedIdentity = npm:QHZpcmFhdGRhcy9ydWRkZXI:2.14.69 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.

scripts/postinstall.mjsView on unpkg

dist/native/darwin-x64/rudder-nativeView file

•path = dist/native/darwin-x64/rudder-native kind = native_binary sizeBytes = 5045776 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

dist/native/darwin-x64/rudder-nativeView on unpkg

dist/improve/collect.jsView file

•stage = ast_semantic_analysis; reason = ast_alias_growth_limit_exceeded; limitedFiles = 6

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

dist/improve/collect.jsView on unpkg

dist/board/daemon.jsView file

•matchType = normalized_sha256 matchedPackage = @viraatdas/rudder@2.14.69 matchedPath = dist/board/daemon.js matchedIdentity = npm:QHZpcmFhdGRhcy9ydWRkZXI:2.14.69 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/board/daemon.jsView on unpkg

dist/handoff.jsView file

•matchType = normalized_sha256 matchedPackage = @viraatdas/rudder@2.14.69 matchedPath = dist/handoff.js matchedIdentity = npm:QHZpcmFhdGRhcy9ydWRkZXI:2.14.69 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/handoff.jsView on unpkg

dist/version-check.jsView file

•matchType = normalized_sha256 matchedPackage = @viraatdas/rudder@2.14.69 matchedPath = dist/version-check.js matchedIdentity = npm:QHZpcmFhdGRhcy9ydWRkZXI:2.14.69 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/version-check.jsView on unpkg

dist/feedback.jsView file

•matchType = normalized_sha256 matchedPackage = @viraatdas/rudder@2.14.69 matchedPath = dist/feedback.js matchedIdentity = npm:QHZpcmFhdGRhcy9ydWRkZXI:2.14.69 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/feedback.jsView on unpkg

dist/improve/state.jsView file

•matchType = normalized_sha256 matchedPackage = @viraatdas/rudder@2.14.69 matchedPath = dist/improve/state.js matchedIdentity = npm:QHZpcmFhdGRhcy9ydWRkZXI:2.14.69 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/improve/state.jsView on unpkg

dist/models.jsView file

•matchType = normalized_sha256 matchedPackage = @viraatdas/rudder@2.14.69 matchedPath = dist/models.js matchedIdentity = npm:QHZpcmFhdGRhcy9ydWRkZXI:2.14.69 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/models.jsView on unpkg

Source & flagged code

17 flagged · loading source

package.jsonView file

•scripts.postinstall = node scripts/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node scripts/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

dist/util.jsView file

High

Known Malware Source Similarity

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

dist/util.jsView on unpkg

Findings

13 High6 Medium5 Low

HighInstall Time Lifecycle Scriptspackage.json

HighCredential Redirect Persistencedist/cloud.js

HighSandbox Evasion Gated Capabilityscripts/postinstall.mjs

HighTrigger Reachable Persistencedist/improve/schedule.js

HighSemantic Analysis Limiteddist/improve/collect.js

HighKnown Malware Source Similaritydist/util.js

HighKnown Malware Source Similaritydist/board/daemon.js

HighKnown Malware Source Similaritydist/handoff.js

HighKnown Malware Source Similaritydist/version-check.js

HighKnown Malware Source Similaritydist/feedback.js

HighKnown Malware Source Similaritydist/improve/state.js

Affected versions and remediation

This report applies to @viraatdas/rudder@2.16.4.

See all versions of @viraatdas/rudder for other recorded verdicts.

Review the evidence and your use of @viraatdas/rudder@2.16.4 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-10-16 01:41:26.899Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Runtime surface

Behavioral surface

Source & flagged code