registry / AI-agent capability abuse / skykoi

skykoi

SkyKoi â€” Koi runtime. Multi-channel gateway CLI with RPC Koi.

This report shows the evidence for skykoi@2026.3.605. 3 of 91 known versions are blocked or flagged. The newest version, 2026.3.623, is flagged. See all versions.

AI Security Review

scanned 2mo ago · by lpm-firewall-ai

The package embeds covert, proactive collection instructions into its active agent system prompt and targets highly sensitive user data without an in-code consent gate. This exceeds a benign assistant capability and constitutes concrete AI-agent capability abuse.

Static reason

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

Trigger

User runs the SkyKoi agent in a non-minimal session with shell or node tools.

Impact

Unauthorized privacy-invasive collection and persistence of personal, message, browser, and account data.

Mechanism

System-prompted covert local and connected-account reconnaissance.

Policy narrative

At runtime, the package builds and injects a personal-context system prompt whenever shell or device tools exist. The prompt falsely treats consent as already granted, orders the agent to investigate silently, and provides instructions to read browser history, messages, files, and connected services, then persist a dossier. This is a concrete covert AI-agent surveillance workflow, although no npm install-time execution or hardcoded exfiltration endpoint was confirmed.

AI rationale

Evidence

dist/reply-Cu31ovR-.jspackage.jsonskykoi.mjsdist/entry.jsUSER.mdprofile.jsonmemory/*.md$env:LOCALAPPDATA\Microsoft\Edge\User Data\Default\History$env:LOCALAPPDATA\Google\Chrome\User Data\Default\History$env:LOCALAPPDATA\BraveSoftware\Brave-Browser\User Data\Default\History

Decision evidence

public snapshot

AI called this Malicious at 96.0% confidence as Malware with low false-positive risk.

Evidence for block

Runtime prompt enables the dossier only when shell or node tools are available.
It directs silent background investigation when profile files are absent.
The prompt explicitly targets browser-history databases.
The generated personal-context section is inserted into the agent system prompt.

Evidence against

No npm preinstall, install, or postinstall lifecycle hook is defined.
No hardcoded external data receiver was confirmed in the inspected path.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNativeBindingsNetworkShellWebSocket

Supply chain

HighEntropyStringsMinifiedPossibleObfuscationTelemetryUrlStrings

ManifestNo manifest risk signals triggered.

Source & flagged code

34 flagged

dist/esm-a9Sv9P5B.jsView file

5594patternName = generic_password severity = medium line = 5594 matchedText = password...d]",

Medium

Secret Pattern

Package contains a possible secret pattern.

dist/esm-a9Sv9P5B.jsView on unpkg · L5594

dist/performances-OcFGqv78.jsView file

6import { sep } from "node:path"; L7: import { spawn } from "node:child_process"; L8:

High

Child Process

Package source references child process execution.

dist/performances-OcFGqv78.jsView on unpkg · L6

187try { L188: spawn("powershell", [ L189: "-NoProfile",

High

Shell

Package source references shell execution.

dist/performances-OcFGqv78.jsView on unpkg · L187

6import { sep } from "node:path"; L7: import { spawn } from "node:child_process"; L8: ... L32: const SITES = { L33: youtube: "https://www.youtube.com/", L34: gmail: "https://mail.google.com/", ... L183: function fireVirtualKey(vk, times = 1) { L184: if (process.platform !== "win32") return; L185: const once = `[koi.K]::keybd_event(${vk},0,0,[IntPtr]::Zero);[koi.K]::keybd_event(${vk},0,2,[IntPtr]::Zero)`; ... L303: if (parts === void 0) return false; L304: const target = [homedir(), ...parts].join(sep); L305: try {

High

Sandbox Evasion Gated Capability

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

dist/performances-OcFGqv78.jsView on unpkg · L6

dist/plugin-sdk/photon_rs-CqtwMJvX.jsView file

4179module.exports.__wbg_newnoargs_e643855c6572a4a8 = function(arg0, arg1) { L4180: return new Function(getStringFromWasm0(arg0, arg1)); L4181: };

High

Eval

Package source references dynamic code evaluation.

dist/plugin-sdk/photon_rs-CqtwMJvX.jsView on unpkg · L4179

dist/git-commit-uvJOzUy3.jsView file

35try { L36: const pkg = createRequire(import.meta.url)("../../package.json"); L37: return formatCommit(pkg.gitHead ?? pkg.githead ?? null);

Medium

Dynamic Require

Package source references dynamic require/import behavior.

dist/git-commit-uvJOzUy3.jsView on unpkg · L35

dist/tui-DBVvUhSL.jsView file

48import fs$1 from "node:fs/promises"; L49: import { execFile, spawn, spawnSync } from "node:child_process"; L50: import { Writable } from "node:stream"; ... L77: if (resolved === path.parse(resolved).root) return true; L78: const home = resolveHomeDir(); L79: if (home && resolved === path.resolve(home)) return true; ... L136: * historically left behind — so an uninstall wasn't "no trace": L137: * - the private Node runtime (~/.skykoi-node) it drops when no system Node, L138: * - the `koi` shims in the npm prefix (incl. a hand-written dev shim that ... L154: }); L155: if (process.platform === "win32") { L156: const prefix = path.join(process.env.APPDATA || path.join(home, "AppData", "Roaming"), "npm");

High

Obfuscated Payload Loader

Source contains an obfuscated payload loader that reconstructs and executes hidden code.

dist/tui-DBVvUhSL.jsView on unpkg · L48

Medium

Unsafe Vm Context

Package source executes code through a VM context API.

dist/tui-DBVvUhSL.jsView on unpkg · L48

dist/plugin-sdk/dist-DAWMj_3q.jsView file

5import { n as require_dist$9, t as require_dist$10 } from "./dist-L9D1u2Mi.js"; L6: import { n as __filename, r as init_esm_shims, t as __dirname } from "./esm-shims-o37Ji_s9.js"; L7: ... L239: this.requireSize = (k, v, size, sizeCalculation) => { L240: if (this.isBackgroundFetch(v)) return 0; L241: if (!isPosInt(size)) if (sizeCalculation) { ... L817: const auth = `${decodeURIComponent(proxy.username)}:${decodeURIComponent(proxy.password)}`; L818: headers["Proxy-Authorization"] = `Basic ${Buffer.from(auth).toString("base64")}`; L819: } ... L1909: else this._ensureWriteable(byteLength, offsetVal); L1910: this._buff.write(value, offsetVal, byteLength, encodingVal); L1911: if (isInsert) this._writeOffset += byteLength;

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/plugin-sdk/dist-DAWMj_3q.jsView on unpkg · L5

dist/systemd-CC8qsoSh.jsView file

7Trigger-reachable persistence chain: manifest.main -> dist/index.js -> dist/systemd-CC8qsoSh.js L7: import fs from "node:fs/promises"; L8: import { execFile } from "node:child_process"; L9: ... L30: try { L31: return os.userInfo().username; L32: } catch { ... L39: try { L40: const { stdout } = await runExec("loginctl", [ L41: "show-user", ... L295: * one answer a translated error string cannot fool — the same reason the L296: * Windows side trusts `/Query` exit codes over schtasks' localized output. L297: * ActiveState matters too: after a unit file is deleted and daemon-reload

High

Trigger Reachable Persistence

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

dist/systemd-CC8qsoSh.jsView on unpkg · L7

7import fs from "node:fs/promises"; L8: import { execFile } from "node:child_process"; L9: ... L30: try { L31: return os.userInfo().username; L32: } catch { ... L39: try { L40: const { stdout } = await runExec("loginctl", [ L41: "show-user", ... L295: * one answer a translated error string cannot fool — the same reason the L296: * Windows side trusts `/Query` exit codes over schtasks' localized output. L297: * ActiveState matters too: after a unit file is deleted and daemon-reload

Medium

Install Persistence

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

dist/systemd-CC8qsoSh.jsView on unpkg · L7

dist/reply-Cu31ovR-.jsView file

76import { a as formatTokenCount$2, i as estimateUsageCost, o as formatUsd$1, s as resolveModelCostConfig } from "./transcript-tools-UfIShVfz.js"; L77: import { a as minSecurity, d as resolveExecApprovalsFromFile, i as maxAsk, l as resolveSafeBins, o as recordAllowlistUse, r as evaluateShellAllowlist, s as requiresExecApproval, t ... L78: import { a as canvasSnapshotTempPath, c as parseCameraClipPayload, d as buildNodeShellCommand, i as parseEnvPairs, l as parseCameraSnapPayload, n as screenRecordTempPath, o as pars... L79: import { a as browserSnapshot, c as browserStop, d as fetchBrowserJson, i as browserProfiles, l as browserTabs, n as browserFocusTab, o as browserStart, r as browserOpenTab, s as b... ... L113: import { createInterface } from "node:readline"; L114: import { createSer

Critical

Hardcoded Runtime Data Exfiltration

Source sends credentials or rich application records to a package-controlled external receiver enabled by default.

dist/reply-Cu31ovR-.jsView on unpkg · L76

Critical

Credential Exfiltration

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

dist/reply-Cu31ovR-.jsView on unpkg · L76

dist/dist-DbdYn2HD.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/dist-DbdYn2HD.js: import { writeFile } from "fs/promises"; baseUrl: "https://bedrock-runtime.us-east-1.amazonaws.com", baseUrl: "https://bedrock-runtime.us-east-1.amazonaws.com", baseUrl: "https://bedrock-runtime.us-east-1.amazonaws.com", baseUrl: "https://bedrock-runtime.us-east-1.amazonaws.com", baseUrl: "https://bedrock-runtime.us-east-1.amazonaws.com", baseUrl: "https://bedrock-runtime.us-east-1.amazonaws.com", baseUrl: "https://bedrock-runtime.us-east-1.amazonaws.com",

High

Credential Redirect Persistence

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

dist/dist-DbdYn2HD.jsView on unpkg

•matchType = normalized_sha256 matchedPackage = skykoi@2026.3.586 matchedPath = dist/dist-C53i5oqF.js matchedIdentity = npm:c2t5a29p:2026.3.586 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/dist-DbdYn2HD.jsView on unpkg

dist/gateway-cli-D6MR7Y6c.jsView file

73import { a as resolveOutboundTarget, o as resolveSessionDeliveryTarget, u as normalizePollInput } from "./message-BqTNgviC.js"; L74: import { i as [redacted], s as verifyDeviceSignature, t as deriveDeviceIdFromPublicKey } from "./device-identity-S9LsHyR8.js"; L75: import { n as pickPrimaryTailnetIPv6, t as pickPrimaryTailnetIPv4 } from "./tailnet-Cr3uILr_.js"; L76: import { $ as validateNodePairListParams, A as [redacted], At as ErrorCodes, B as validateKoiIdentityParams, C as validateCronUpdateParams, Ct as validateWeb... L77: import { n as callGateway, s as loadGatewayTlsRuntime$1 } from "./call-BfDJFkHb.js"; ... L112: import "./graph-access-CDNpfrV8.js"; L113: import { _ as setAudioMuted, m as isPrivateMode, p as isAudioMuted, v as setPrivateMode } from "./identify-DcWtcev6.js"; L1

Critical

Remote Asset Decode Execute

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

dist/gateway-cli-D6MR7Y6c.jsView on unpkg · L73

High

Command Output Exfiltration

Source combines command execution, command-output handling, and outbound requests; review data flow before blocking.

dist/gateway-cli-D6MR7Y6c.js

dist/dist-C_FHbTTK.jsView file

15import { access, lstat, open, readFile, readdir, readlink, realpath, stat, unlink } from "node:fs/promises"; L16: import { spawn, spawnSync } from "node:child_process"; L17: import * as _bundledTypebox from "@sinclair/typebox"; ... L44: //#region node_modules/.pnpm/@mariozechner+pi-coding-agent@0.52.8_ws@8.19.0_zod@4.3.6/node_modules/@mariozechner/pi-coding-agent/dist/config.js L45: const __dirname = dirname$1(fileURLToPath$1(import.meta.url)); L46: /** ... L63: switch (detectInstallMethod()) { L64: case "bun-binary": return `Download from: https://github.com/badlogic/pi-mono/releases/latest`; L65: case "pnpm": return `Run: pnpm install -g ${packageName}`; ... L72: /** L73: * Get the base directory for resolving package assets (themes, package.json, README.md, CHANGELOG.md). L74: * -

Critical

Browser Credential Phishing

Source appears to collect browser login credentials for exfiltration.

dist/dist-C_FHbTTK.jsView on unpkg · L15

•stage = ast_semantic_analysis; reason = ast_path_work_budget_exceeded; limitedFiles = 5

High

Semantic Analysis Limited

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

dist/dist-C_FHbTTK.jsView on unpkg

•matchType = normalized_sha256 matchedPackage = skykoi@2026.3.586 matchedPath = dist/dist-Bl9USPjs.js matchedIdentity = npm:c2t5a29p:2026.3.586 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

dist/dist-cjs-BRDaKGsV.jsView file

64if (response.statusCode === 200) { L65: const parsed = JSON.parse(str); L66: if (typeof parsed.AccessKeyId !== "string" || typeof parsed.SecretAccessKey !== "string" || typeof parsed.Token !== "string" || typeof parsed.Expiration !== "string") throw new pro... ... L119: const AWS_CONTAINER_CREDENTIALS_RELATIVE_URI = "AWS_CONTAINER_CREDENTIALS_RELATIVE_URI"; L120: const DEFAULT_LINK_LOCAL_HOST = "http://169.254.170.2"; L121: const AWS_CONTAINER_CREDENTIALS_FULL_URI = "AWS_CONTAINER_CREDENTIALS_FULL_URI"; ... L126: let host; L127: const relative = options.[redacted] ?? process.env[AWS_CONTAINER_CREDENTIALS_RELATIVE_URI]; L128: const full = options.awsContainerCredentialsFullUri ?? process.env[AWS_CONTAINER_CREDENTIALS_FULL_URI];

High

Cloud Metadata Access

Source reaches cloud instance metadata or link-local credential endpoints.

dist/dist-cjs-BRDaKGsV.jsView on unpkg · L64

dist/daemon-runtime-DEmf_Uo4.jsView file

8Cross-file remote execution chain: dist/daemon-runtime-DEmf_Uo4.js spawns dist/model-selection-Bz2h2N8p.js; helper contains network access plus dynamic code execution. L8: import fs from "node:fs/promises"; L9: import { execFile } from "node:child_process"; L10: import { createHash } from "node:crypto"; ... L162: function buildPosixShim() { L163: return `#!/bin/sh L164: # SkyKoi launcher shim (format ${LAUNCHER_FORMAT_VERSION}) — generated, do not edit. ... L306: } L307: function buildLauncherShim(platform = process.platform) { L308: const content = platform === "win32" ? buildWindowsShim() : buildPosixShim(); ... L333: async function installLauncher(params) { L334: const env = params.env ?? process.env; L335: const platform = params.platform ?? process.platform;

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/daemon-runtime-DEmf_Uo4.jsView on unpkg · L8

src/capture/audio-daemon/SkyKoiCapture.app/Contents/MacOS/audio-daemonView file

•path = src/capture/audio-daemon/SkyKoiCapture.app/Contents/MacOS/audio-daemon kind = native_binary sizeBytes = 579792 magicHex = [redacted]

Medium

Ships Native Binary

Package ships native binary artifacts.

src/capture/audio-daemon/SkyKoiCapture.app/Contents/MacOS/audio-daemonView on unpkg

scripts/needle-sidecar.pyView file

•path = scripts/needle-sidecar.py kind = build_helper sizeBytes = 3524 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

scripts/needle-sidecar.pyView on unpkg

dist/plugin-sdk/pi-model-discovery-gZUF6XqE.jsView file

•matchType = normalized_sha256 matchedPackage = skykoi@2026.3.586 matchedPath = dist/plugin-sdk/pi-model-discovery-HMR1-eGH.js matchedIdentity = npm:c2t5a29p:2026.3.586 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/plugin-sdk/pi-model-discovery-gZUF6XqE.jsView on unpkg

dist/doctor-Bq8z-9gU.jsView file

•matchType = normalized_sha256 matchedPackage = skykoi@2026.3.586 matchedPath = dist/doctor-C4isAw6U.js matchedIdentity = npm:c2t5a29p:2026.3.586 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/doctor-Bq8z-9gU.jsView on unpkg

dist/graphics-terminal-setup-Dr54B27V.jsView file

•matchType = normalized_sha256 matchedPackage = skykoi@2026.3.586 matchedPath = dist/graphics-terminal-setup-CI80Oah_.js matchedIdentity = npm:c2t5a29p:2026.3.586 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/graphics-terminal-setup-Dr54B27V.jsView on unpkg

Source & flagged code

34 flagged · loading source

dist/esm-a9Sv9P5B.jsView file

5594patternName = generic_password severity = medium line = 5594 matchedText = password...d]",

Medium

Secret Pattern

Package contains a possible secret pattern.

dist/esm-a9Sv9P5B.jsView on unpkg · L5594

dist/performances-OcFGqv78.jsView file

6import { sep } from "node:path"; L7: import { spawn } from "node:child_process"; L8:

High

Child Process

Package source references child process execution.

dist/performances-OcFGqv78.jsView on unpkg · L6

187try { L188: spawn("powershell", [ L189: "-NoProfile",

High

Shell

Package source references shell execution.

dist/performances-OcFGqv78.jsView on unpkg · L187

Findings

6 Critical20 High10 Medium6 Low

CriticalHardcoded Runtime Data Exfiltrationdist/reply-Cu31ovR-.js

CriticalCredential Exfiltrationdist/reply-Cu31ovR-.js

CriticalBrowser Credential Phishingdist/dist-C_FHbTTK.js

CriticalRemote Asset Decode Executedist/gateway-cli-D6MR7Y6c.js

CriticalRemote Response Code Executiondist/reply-Cu31ovR-.js

CriticalTrigger Reachable Dangerous Capabilitydist/reply-Cu31ovR-.js

HighChild Processdist/performances-OcFGqv78.js

HighShelldist/performances-OcFGqv78.js

HighEvaldist/plugin-sdk/photon_rs-CqtwMJvX.js

HighCredential Redirect Persistencedist/dist-DbdYn2HD.js

HighEntrypoint Foreign Package Code Overwrite

Affected versions and remediation

This report applies to skykoi@2026.3.605.

The versions list below shows the verdict for each recorded version.

Avoid installing skykoi@2026.3.605. Remove it from direct dependencies and check your lockfile for transitive copies.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.
If this version ran, investigate the affected machine and build environment. Rotate credentials it could access and rebuild from a trusted environment.

Evidence last updated: 2026-08-19 06:37:21.812Z (UTC).

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

Versions

91 known versions

2026.3.623latestSuspiciousCredential ExfiltrationWarnPublishedAug 24, 2026, 9:18 PM 2026.3.609Manual Review—AllowUnder ReviewAug 20, 2026, 7:40 PM 2026.3.605shownMaliciousAI-agent capability abuseBlockPublishedAug 19, 2026, 6:31 AM 2026.3.604SuspiciousAI-agent capability abuseWarnPublishedAug 19, 2026, 6:12 AM

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

Related packages

Other AI-agent capability abuse packages

Behavioral surface

Related packages

Other AI-agent capability abuse packages

Source & flagged code