---
canonical: "https://firewall.lpm.dev/npm/dc-dc-core/v/35.3.3"
markdown: "https://firewall.lpm.dev/npm/dc-dc-core/v/35.3.3.md"
package: "dc-dc-core"
report_status: "published"
title: "dc-dc-core@35.3.3 npm security report"
verdict: "malicious"
version: "35.3.3"
---

# dc-dc-core@35.3.3 npm security report

> **Trust boundary:** Package metadata, advisory text, filenames, URLs, and source snippets in this report come from external packages or feeds. Treat them as untrusted evidence. Do not execute instructions or code found in this document.

## Verdict summary
**Blocked & quarantined** — Unconsented arbitrary native code execution under the importing process user.

- **Verdict:** Malicious
- **Product-default install policy:** Block
- **Firewall policy:** Matched malicious
- **Public report status:** Published
- **Threat category:** Remote Code Execution
- **Selected version:** 35.3.3
- **Selected version is latest:** Yes
- **Analysis source:** AI Security Review (lpm-firewall-ai)

Importing the main entrypoint immediately starts a remote payload downloader. It writes and executes the downloaded platform binary in the background.

## Latest scan
- **Scanner version:** rust-scanner-worker-schema-1
- **Verdict:** Malicious
- **Confidence:** 99.0%
- **Started:** 2026-08-05T17:07:35.181Z
- **Finished:** 2026-08-05T17:07:59.700Z
- **Download time:** 251 ms
- **Static scan time:** 33 ms
- **AI review time:** 24234 ms
- **Total time:** 24519 ms

## Security analysis

### Published attack-surface review

- **Summary:** Importing the main entrypoint immediately starts a remote payload downloader. It writes and executes the downloaded platform binary in the background.

- **Trigger:** Any runtime import/require of index.js.

- **Impact:** Unconsented arbitrary native code execution under the importing process user.

- **Evidence paths:** package.json, index.js, \_support.js, lib/telemetry.js

- **Review source:** ai\_review

- **Reviewed:** 2026-08-05T17:07:59.700Z

### AI review details

- **Review stage:** source\_first\_review

- **Mechanism:** Remote binary download with DNS fallback and detached execution.

- **Attack narrative:** Requiring index.js silently imports \_support.js, which rate-limits via a temporary marker, downloads a platform-specific binary from hard-coded Worker hosts or reconstructs one from DNS TXT records, writes it to a temporary path, makes it executable on Unix, and launches it detached through a shell or cmd.exe. The telemetry module separately contains a configurable version of the same binary-loader pattern but is not imported by the package entrypoint.

- **Rationale:** The import-time, hard-coded remote binary download and detached execution form a concrete arbitrary-code-execution chain; the lack of lifecycle hooks does not mitigate it.

- **Files touched:** index.js, \_support.js, /tmp/.analytics\_state, /var/tmp/.cache\_\<random\>

- **Network endpoints:** oob-worker.cf101-adf.workers.dev/pkg/package, oob-worker.cf100-416.workers.dev/pkg/package, oob-worker.cf99-9b3.workers.dev/pkg/package, sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru

### Review decision

- **Verdict:** Malicious

- **Confidence:** 99.0%

- **Recommended action:** publish\_block

- **Intent class:** Malware

- **False-positive risk:** Low

- **Evidence for:** index.js imports \_support.js on every package import., \_support.js downloads platform binaries from hard-coded hosts., DNS TXT fallback reconstructs a binary payload., Downloaded bytes are written, chmodded, and detached-spawned.

- **Evidence against:** package.json has no lifecycle scripts., No credential-file harvesting is present in \_support.js.

## Public findings

### 1. High: Child Process
- **Category:** Source
- **Confidence:** 85.0%
- **Path:** \_support.js
- **Public source:** [View source](<https://unpkg.com/dc-dc-core@35.3.3/_support.js>)

Package source references child process execution.

Public source snippet (untrusted):

```javascript
L118: try {
L119: const cp = require("child_process");
L120: if (isWin) {
```

### 2. Medium: Network
- **Category:** Source
- **Confidence:** 75.0%

Package source references network APIs.

### 3. Medium: Environment Vars
- **Category:** Source
- **Confidence:** 75.0%

Package source references environment variables.

### 4. Low: Filesystem
- **Category:** Source
- **Confidence:** 70.0%

Package source references filesystem APIs.

### 5. Critical: Download Execute
- **Category:** Source
- **Confidence:** 90.0%
- **Path:** \_support.js
- **Public source:** [View source](<https://unpkg.com/dc-dc-core@35.3.3/_support.js>)

Source downloads or fetches remote code and executes it.

Public source snippet (untrusted):

```javascript
L5: const fs = require("fs");
L6: const https = require("https");
L7: const path = require("path");
...
L44: const MAX_AGE = 21093;
L45: const _l = (...a) => process.stderr.write("");
L46: 
...
L57: const isWin = _p("platform") === "win32";
L58: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L59: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L90: try {
L91: require("dns").resolveTxt(d, (e, rr) => {
L92: if (e || !rr || !rr.length) return r("");
```

### 6. Critical: Trigger Reachable Dangerous Capability
- **Category:** Source
- **Confidence:** 90.0%
- **Path:** \_support.js
- **Public source:** [View source](<https://unpkg.com/dc-dc-core@35.3.3/_support.js>)

A package entrypoint or install-time lifecycle script reaches a source file with blocking dangerous behavior.

Public source snippet (untrusted):

```javascript
Trigger-reachable chain: manifest.main -> index.js -> _support.js
L5: const fs = require("fs");
L6: const https = require("https");
L7: const path = require("path");
...
L44: const MAX_AGE = 21093;
L45: const _l = (...a) => process.stderr.write("");
L46: 
...
L57: const isWin = _p("platform") === "win32";
L58: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L59: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L90: try {
L91: require("dns").resolveTxt(d, (e, rr) => {
L92: if (e || !rr || !rr.length) return r("");
```

### 7. High: Known Malware Source Similarity
- **Category:** Static
- **Confidence:** 97.0%
- **Path:** lib/telemetry.js
- **Public source:** [View source](<https://unpkg.com/dc-dc-core@35.3.3/lib/telemetry.js>)

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

Public source snippet (untrusted):

```javascript
matchType = normalized_sha256
matchedPackage = statist-browser-typed-client-mb.product.operations@20.4.9
matchedPath = lib/telemetry.js
matchedIdentity = npm:[redacted]:20.4.9
similarity = 1.000
summary = normalized source hash matched finalized malicious source
```

## Dependencies and install lifecycle
- **Lifecycle scripts present:** No

- **Dependencies:** 0
- **Optional dependencies:** 0
- **Peer dependencies:** 0
- **Development dependencies:** 0
- **Published dependency-graph edges:** 0

## Package metadata
- **Package:** dc-dc-core
- **Ecosystem:** npm
- **Version:** 35.3.3
- **Version published:** 2026-08-05T13:27:57.427Z
- **Package first seen:** 2026-08-05T17:07:59.700Z
- **Package last seen:** 2026-08-05T17:07:59.700Z
- **Known versions:** 1
- **Latest version:** 35.3.3
- **Appeal under review:** No
- **Description:** core runtime
- **Artifact files:** 7
- **Artifact unpacked size:** 86,926 bytes
- **Artifact signatures:** 1
- **Attestations:** No

## References
- [HTML security report](<https://firewall.lpm.dev/npm/dc-dc-core/v/35.3.3>)