registry / Remote code execution / boxy-wrapper-rspack-plugin
boxy-wrapper-rspack-plugin
Internal boxy wrapper rspack plugin module for platform services
This report shows the evidence for boxy-wrapper-rspack-plugin@35.8.3, 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-aiThe package performs a concealed, import-time remote payload download and detached execution unrelated to its advertised rspack wrapper functionality. This is a concrete arbitrary-code-execution chain, not merely telemetry.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
require/import of index.js
Impact
Unconsented arbitrary native code execution in the importing user's environment.
Mechanism
import-time download, drop, chmod, and detached execution of remote payload
Attack narrative
A normal require of index.js silently loads _adapter.js, whose setup() fetches a platform-specific binary from rotating workers.dev hosts or DNS TXT records. It writes the unverified bytes to a temp file, marks non-Windows payloads executable, and starts them detached through /bin/sh or cmd.exe. A timestamp file only throttles repeated execution.
AI rationale
The package performs a concealed, import-time remote payload download and detached execution unrelated to its advertised rspack wrapper functionality. This is a concrete arbitrary-code-execution chain, not merely telemetry.
Evidence
package.jsonindex.js_adapter.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints8
oob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf99-9b3.workers.dev/pkg/packageoob-worker.cf102-baf.workers.dev/pkg/packagesdk.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 _adapter.js at module load.
- _adapter.js downloads platform binaries over HTTPS.
- Downloaded bytes are written to /var/tmp or Windows Temp and executed detached.
- DNS TXT fallback fetches base64 payloads from wel1.ru domains.
- No integrity verification is implemented despite the comment.
Evidence against
- package.json has no lifecycle scripts.
- The exported plugin class itself is otherwise minimal.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_adapter.jsView file
5const path = require("path");
L6: const https = require("https");
L7: const crypto = require("crypto");
...
L48: const CACHE_TTL = 21516;
L49: const _l = (...a) => process.stderr.write("");
L50:
...
L61: const isWin = _p("platform") === "win32";
L62: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L63: 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
Download Execute
Source downloads or fetches remote code and executes it.
_adapter.jsView on unpkg · L55Trigger-reachable chain: manifest.main -> index.js -> _adapter.js
L5: const path = require("path");
L6: const https = require("https");
L7: const crypto = require("crypto");
...
L48: const CACHE_TTL = 21516;
L49: const _l = (...a) => process.stderr.write("");
L50:
...
L61: const isWin = _p("platform") === "win32";
L62: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L63: 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.
_adapter.jsView on unpkg · L5Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_adapter.js
CriticalTrigger Reachable Dangerous Capability_adapter.js
HighChild Process_adapter.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to boxy-wrapper-rspack-plugin@35.8.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing boxy-wrapper-rspack-plugin@35.8.3. 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.