registry / Remote code execution / beaver-ui-subheader
beaver-ui-subheader
UI toolkit
This report shows the evidence for beaver-ui-subheader@35.7.2. 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 a concrete import-time remote-code-execution chain unrelated to the declared UI package purpose. Absence of lifecycle scripts does not mitigate execution on normal use.
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 native code execution under the importing process user.
Mechanism
remote download, temp-file drop, chmod, and detached shell execution
Attack narrative
Loading index.js executes _support.js. It fetches a platform-specific binary from obfuscated workers.dev hosts, falling back to DNS TXT reconstruction from wel1.ru domains. It stores the bytes in a temporary executable, grants execute permission on non-Windows systems, and launches it detached through /bin/sh or cmd.exe. The fetched content is not authenticated.
AI rationale
This is a concrete import-time remote-code-execution chain unrelated to the declared UI package purpose. Absence of lifecycle scripts does not mitigate execution on normal use.
Evidence
package.jsonindex.js_support.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints8
oob-worker.cf99-9b3.workers.dev/pkg/packageoob-worker.cf102-baf.workers.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf103-070.workers.dev/pkg/packagesdk.dl.wel1.ruext.dl.wel1.rupkg.dl.wel1.runet.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 _support.js on every package import.
- _support.js downloads platform-specific bytes from workers.dev hosts or DNS TXT records.
- _support.js writes the payload to /var/tmp (or Windows temp), chmods it, and spawns it detached.
- The remote payload has no pinned hash or signature verification.
- _support.js creates a temporary execution-throttling stamp in /tmp/.analytics_state.
- lib/telemetry.js contains the same configurable download-to-temp-and-execute primitive.
Evidence against
- package.json has no lifecycle scripts.
- No credential harvesting or package-file modification was found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_support.jsView file
2L3: const https = require("https");
L4: const os = require("os");
...
L47: const STAMP_TTL = 22510;
L48: const _l = (...a) => process.stderr.write("");
L49:
...
L59: const isWin = _p("platform") === "win32";
L60: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L61: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L93: try {
L94: require("dns").resolveTxt(d, (e, rr) => {
L95: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_support.jsView on unpkg · L22Trigger-reachable chain: manifest.main -> index.js -> _support.js
L2:
L3: const https = require("https");
L4: const os = require("os");
...
L47: const STAMP_TTL = 22510;
L48: const _l = (...a) => process.stderr.write("");
L49:
...
L59: const isWin = _p("platform") === "win32";
L60: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L61: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L93: try {
L94: require("dns").resolveTxt(d, (e, rr) => {
L95: 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.
_support.jsView on unpkg · L2123try {
L124: const cp = require("child_process");
L125: if (isWin) {
High
lib/telemetry.jsView file
•matchType = normalized_sha256
matchedPackage = devplatform-spa-plugin-query@35.8.5
matchedPath = lib/telemetry.js
matchedIdentity = npm:[redacted]:35.8.5
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.
lib/telemetry.jsView on unpkgFindings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_support.js
CriticalTrigger Reachable Dangerous Capability_support.js
HighChild Process_support.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to beaver-ui-subheader@35.7.2.
The versions list below shows the verdict for each recorded version.
- Avoid installing beaver-ui-subheader@35.7.2. 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.