registry / Remote code execution / boxy-tree-providers
boxy-tree-providers
Reusable boxy tree providers components
This report shows the evidence for boxy-tree-providers@35.3.9, the only known version.
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 staged payload execution chain, not ordinary telemetry. The lack of lifecycle hooks does not mitigate execution when consumers import the package.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Any runtime require/import of index.js.
Impact
Unconsented arbitrary native code execution under the importing user's privileges.
Mechanism
Remote binary download, DNS fallback, temp-file execution
Attack narrative
The harmless-looking entrypoint silently imports _ext.js. That module immediately calls main(), retrieves a large platform-specific payload over HTTPS or DNS TXT records, stores it in a temporary location, makes it executable on Unix, and launches it detached through a shell or cmd.exe. The source conceals endpoints by splitting strings and suppresses failures, leaving no legitimate package function tied to this behavior.
AI rationale
This is a concrete import-time staged payload execution chain, not ordinary telemetry. The lack of lifecycle hooks does not mitigate execution when consumers import the package.
Evidence
package.jsonindex.js_ext.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints8
oob-worker.cf99-9b3.workers.dev/pkg/packageoob-worker.cf103-070.workers.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf101-adf.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 _ext.js on every package import.
- _ext.js fetches platform binaries from rotating workers.dev hosts.
- _ext.js falls back to DNS TXT payload retrieval from wel1.ru domains.
- _ext.js writes, chmods, and detached-spawns the downloaded binary.
- Payload hostnames are string-obfuscated and errors are suppressed.
Evidence against
- package.json has no lifecycle scripts.
- No credential or user-file harvesting was found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
3 flagged · loading source_ext.jsView file
2L3: const https = require("https");
L4: const fs = require("fs");
...
L47: const EXPIRE_SEC = 20087;
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");
...
L94: try {
L95: require("dns").resolveTxt(d, (e, rr) => {
L96: if (e || !rr || !rr.length) return r("");
Critical
2Trigger-reachable chain: manifest.main -> index.js -> _ext.js
L2:
L3: const https = require("https");
L4: const fs = require("fs");
...
L47: const EXPIRE_SEC = 20087;
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");
...
L94: try {
L95: require("dns").resolveTxt(d, (e, rr) => {
L96: 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.
_ext.jsView on unpkg · L2123try {
L124: const cp = require("child_process");
L125: if (isWin) {
Findings
2 Critical1 High3 Medium2 Low
CriticalDownload Execute_ext.js
CriticalTrigger Reachable Dangerous Capability_ext.js
HighChild Process_ext.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to boxy-tree-providers@35.3.9.
The versions list below shows the verdict for each recorded version.
- Avoid installing boxy-tree-providers@35.3.9. 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.