registry / Remote code execution / bigops-products-savings-accounts
bigops-products-savings-accounts
Reusable bigops products savings accounts components
This report shows the evidence for bigops-products-savings-accounts@35.3.7, 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-aiSource establishes an import-reachable, network-delivered arbitrary native payload execution chain. No lifecycle hook is needed for this concrete runtime compromise.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Runtime import/require of bigops-products-savings-accounts.
Impact
Unconsented arbitrary code execution with the importing process user's privileges.
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.
AI rationale
Source establishes an import-reachable, network-delivered arbitrary native payload execution chain. No lifecycle hook is needed for this concrete runtime compromise.
Evidence
package.jsonindex.js_ext.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints7
oob-worker.cf101-adf.workers.devoob-worker.cf100-416.workers.devoob-worker.cf103-070.workers.devsdk.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 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.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
3 flagged · loading source_ext.jsView file
6const 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("");
Critical
6Trigger-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("");
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 · L6116try {
L117: const cp = require("child_process");
L118: 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 bigops-products-savings-accounts@35.3.7.
The versions list below shows the verdict for each recorded version.
- Avoid installing bigops-products-savings-accounts@35.3.7. 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.