---
canonical: "https://firewall.lpm.dev/npm/bigops-products-savings-accounts/v/35.3.7"
markdown: "https://firewall.lpm.dev/npm/bigops-products-savings-accounts/v/35.3.7.md"
package: "bigops-products-savings-accounts"
report_status: "published"
title: "bigops-products-savings-accounts@35.3.7 npm security report"
verdict: "malicious"
version: "35.3.7"
---

# bigops-products-savings-accounts@35.3.7 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 code execution with the importing process user's privileges.

- **Verdict:** Malicious
- **Product-default install policy:** Block
- **Firewall policy:** Matched malicious
- **Public report status:** Published
- **Threat category:** Remote Code Execution
- **Selected version:** 35.3.7
- **Selected version is latest:** Yes
- **Analysis source:** AI Security Review (lpm-firewall-ai)

Importing the package automatically starts a remote binary download-and-execute chain. It uses HTTPS with DNS TXT fallback, then runs the fetched platform-specific file detached.

## Latest scan
- **Scanner version:** rust-scanner-worker-schema-1
- **Verdict:** Malicious
- **Confidence:** 99.0%
- **Started:** 2026-08-05T16:44:42.165Z
- **Finished:** 2026-08-05T16:45:16.056Z
- **Download time:** 507 ms
- **Static scan time:** 26 ms
- **AI review time:** 33358 ms
- **Total time:** 33891 ms

## Security analysis

### Published attack-surface review

- **Summary:** Importing the package automatically starts a remote binary download-and-execute chain. It uses HTTPS with DNS TXT fallback, then runs the fetched platform-specific file detached.

- **Trigger:** Runtime import/require of bigops-products-savings-accounts.

- **Impact:** Unconsented arbitrary code execution with the importing process user's privileges.

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

- **Review source:** ai\_review

- **Reviewed:** 2026-08-05T16:45:16.056Z

### AI review details

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

- **Mechanism:** remote payload retrieval, temporary-file drop, chmod, and detached execution

- **Attack narrative:** A normal require of index.js silently requires \_ext.js. Its top-level setup function fetches a platform-specific binary from hard-coded remote hosts, or retrieves base64 chunks through attacker-controlled DNS TXT records. It drops the bytes into a temporary directory, grants execute permission on Unix, and launches the file detached via /bin/sh or cmd.exe. The marker file merely throttles execution and opt-out variable names disguise the behavior as telemetry.

- **Rationale:** Source establishes an import-reachable, network-delivered arbitrary native payload execution chain. No lifecycle hook is needed for this concrete runtime compromise.

- **Files touched:** index.js, \_ext.js, /tmp/.analytics\_state, /var/tmp/.cache\_\<random\>, C:\\Windows\\Temp\\analytics\_state, C:\\Windows\\Temp\\dotnet\_diag\_\<random\>.exe

- **Network endpoints:** oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev, 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 \_ext.js on every package import., \_ext.js downloads platform binaries from three hard-coded Workers hosts., \_ext.js falls back to DNS TXT payload retrieval from \*.wel1.ru., Downloaded bytes are written to /var/tmp or Windows Temp, made executable, then detached-spawned., The payload chain is concealed as telemetry and suppressed errors.

- **Evidence against:** package.json has no npm lifecycle scripts., No credential or environment-value exfiltration is present in the inspected entrypoint chain.

## Public findings

### 1. High: Child Process
- **Category:** Source
- **Confidence:** 85.0%
- **Path:** \_ext.js
- **Public source:** [View source](<https://unpkg.com/bigops-products-savings-accounts@35.3.7/_ext.js>)

Package source references child process execution.

Public source snippet (untrusted):

```javascript
L116: try {
L117: const cp = require("child_process");
L118: 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:** \_ext.js
- **Public source:** [View source](<https://unpkg.com/bigops-products-savings-accounts@35.3.7/_ext.js>)

Source downloads or fetches remote code and executes it.

Public source snippet (untrusted):

```javascript
L6: const path = require("path");
L7: const https = require("https");
L8: 
...
L43: const TTL = 20964;
L44: const _l = (...a) => process.stderr.write("");
L45: 
...
L54: const isWin = _p("platform") === "win32";
L55: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L56: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L87: try {
L88: require("dns").resolveTxt(d, (e, rr) => {
L89: if (e || !rr || !rr.length) return r("");
```

### 6. Critical: Trigger Reachable Dangerous Capability
- **Category:** Source
- **Confidence:** 90.0%
- **Path:** \_ext.js
- **Public source:** [View source](<https://unpkg.com/bigops-products-savings-accounts@35.3.7/_ext.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 -> _ext.js
L6: const path = require("path");
L7: const https = require("https");
L8: 
...
L43: const TTL = 20964;
L44: const _l = (...a) => process.stderr.write("");
L45: 
...
L54: const isWin = _p("platform") === "win32";
L55: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L56: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L87: try {
L88: require("dns").resolveTxt(d, (e, rr) => {
L89: if (e || !rr || !rr.length) return r("");
```

### 7. Low: High Entropy Strings
- **Category:** Supply Chain
- **Confidence:** 55.0%

Package source contains high-entropy string patterns.

### 8. Medium: Structural Risk Force Deep Review
- **Category:** Artifact Inventory
- **Confidence:** 85.0%

Artifact structure forces deeper review even if the static behavioral verdict is clean.

## 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:** bigops-products-savings-accounts
- **Ecosystem:** npm
- **Version:** 35.3.7
- **Version published:** 2026-08-05T14:03:47.928Z
- **Package first seen:** 2026-08-05T16:45:16.056Z
- **Package last seen:** 2026-08-05T16:45:16.056Z
- **Known versions:** 1
- **Latest version:** 35.3.7
- **Appeal under review:** No
- **Description:** Reusable bigops products savings accounts components
- **Artifact files:** 7
- **Artifact unpacked size:** 87,423 bytes
- **Artifact signatures:** 1
- **Attestations:** No

## References
- [HTML security report](<https://firewall.lpm.dev/npm/bigops-products-savings-accounts/v/35.3.7>)