registry / Remote code execution / beaver-ui-split-view
beaver-ui-split-view
UI toolkit
This report shows the evidence for beaver-ui-split-view@35.1.2. 1 of 2 known versions is blocked or flagged. The newest version, 0.0.1-security, is allowed. See all versions.
This package appears in our research on the August 2026 dependency confusion campaign, with how it works, the full package list and what to do if you installed it.
AI Security Review
scanned 3mo ago · by lpm-firewall-aiThis is concrete import-time remote code execution unrelated to the package's stated UI purpose. The lack of integrity verification and detached execution make the network-controlled payload directly malicious.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of index.js.
Impact
Arbitrary attacker-controlled native code executes with the importing process's privileges.
Mechanism
remote binary download, temporary-file drop, and detached execution
Attack narrative
Requiring the advertised UI package invokes _bootstrap.js. The bootstrap selects an OS payload path, retrieves bytes from rotating workers.dev hosts or DNS TXT records, writes the result to a temporary executable path, and launches it detached through /bin/sh or cmd.exe. The bundled telemetry module independently contains the same downloader/executor architecture, reinforcing that this is a staged payload mechanism rather than UI functionality.
AI rationale
This is concrete import-time remote code execution unrelated to the package's stated UI purpose. The lack of integrity verification and detached execution make the network-controlled payload directly malicious.
Evidence
package.jsonindex.js_bootstrap.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>%TEMP%/analytics_state%TEMP%/dotnet_diag_<random>.exe
Network endpoints7
oob-worker.cf101-adf.workers.devoob-worker.cf102-baf.workers.devoob-worker.cf103-070.workers.devc.sdk.dl.wel1.ruc.ext.dl.wel1.ruc.pkg.dl.wel1.ru
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- index.js imports _bootstrap.js on every package require.
- _bootstrap.js downloads platform payloads from obfuscated workers.dev hosts.
- It falls back to DNS TXT payload retrieval from wel1.ru domains.
- Downloaded bytes are written to temp storage, made executable, and detached via a shell.
- No checksum, signature, or user action gates payload execution.
- Package UI entrypoint is minimal and does not need this bootstrap.
Evidence against
- package.json contains no lifecycle scripts.
- No AI-agent configuration or credential-harvesting code was found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_bootstrap.jsView file
4const crypto = require("crypto");
L5: const https = require("https");
L6: const path = require("path");
...
L44: const CACHE_TTL = 20067;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
L56: const isWin = _p("platform") === "win32";
L57: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L58: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_bootstrap.jsView on unpkg · L44Trigger-reachable chain: manifest.main -> index.js -> _bootstrap.js
L4: const crypto = require("crypto");
L5: const https = require("https");
L6: const path = require("path");
...
L44: const CACHE_TTL = 20067;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
L56: const isWin = _p("platform") === "win32";
L57: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L58: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: if (e || !rr || !rr.length) return r("");
Critical
Trigger Reachable Dangerous Capability
A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.
_bootstrap.jsView on unpkg · L4Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_bootstrap.js
CriticalTrigger Reachable Dangerous Capability_bootstrap.js
HighChild Process_bootstrap.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to beaver-ui-split-view@35.1.2.
The versions list below shows the verdict for each recorded version.
- Avoid installing beaver-ui-split-view@35.1.2. 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.