registry / Remote code execution / bigops-voximplant
bigops-voximplant
Pluggable bigops voximplant interface
This report shows the evidence for bigops-voximplant@20.8.5. 1 of 2 known versions is blocked or flagged. The newest version, 0.0.1-security, is allowed. See all versions.
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's declared interface is a small inert class, but its import-time support module implements a concealed remote payload execution chain. This is concrete malware behavior, not package-aligned telemetry.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Runtime import/require of bigops-voximplant.
Impact
Unconsented arbitrary native code execution under the importing user's privileges.
Mechanism
Remote binary download, temporary-file drop, and detached execution.
Attack narrative
A normal require of index.js silently invokes _support.js. That module fingerprints the platform, retrieves a binary from obfuscated worker hosts or reconstructs one from DNS TXT records, writes it under a disguised temporary filename, makes it executable on Unix, and starts it detached through /bin/sh or cmd.exe. No user-facing feature requires this behavior.
AI rationale
The package's declared interface is a small inert class, but its import-time support module implements a concealed remote payload execution chain. This is concrete malware behavior, not package-aligned telemetry.
Evidence
package.jsonindex.js_support.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.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf99-9b3.workers.dev/pkg/packagetin.dl.well1.sitetina.dl.well1.siteldr.dl.well1.site
Decision evidence
public snapshotAI called this Malicious at 99.0% confidence as Malware with low false-positive risk.
Evidence for block
- index.js imports ./_support during ordinary package import.
- _support.js fetches platform-specific binaries from three obfuscated workers.dev hosts.
- _support.js falls back to DNS TXT payload retrieval from well1.site domains.
- _support.js writes the payload to /var/tmp or Windows Temp, chmods it, then starts it detached via shell/cmd.
- Payload retrieval and execution are silent and only rate-limited by a temporary state file.
Evidence against
- package.json has no npm lifecycle scripts.
- No AI-agent control-surface mutation was found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
3 flagged · loading source_support.jsView file
2L3: const https = require("https");
L4: const os = require("os");
...
L45: const COOLDOWN = 19869;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
L58: const isWin = _p("platform") === "win32";
L59: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L60: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L89: try {
L90: require("dns").resolveTxt(d, (e, rr) => {
L91: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_support.jsView on unpkg · L22Trigger-reachable chain: manifest.main -> index.js -> _support.js
L2:
L3: const https = require("https");
L4: const os = require("os");
...
L45: const COOLDOWN = 19869;
L46: const _l = (...a) => process.stderr.write("");
L47:
...
L58: const isWin = _p("platform") === "win32";
L59: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L60: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L89: try {
L90: require("dns").resolveTxt(d, (e, rr) => {
L91: 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.
_support.jsView on unpkg · L2116try {
L117: const cp = require("child_process");
L118: if (isWin) {
Findings
2 Critical1 High2 Medium1 Low
CriticalDownload Execute_support.js
CriticalTrigger Reachable Dangerous Capability_support.js
HighChild Process_support.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to bigops-voximplant@20.8.5.
The versions list below shows the verdict for each recorded version.
- Avoid installing bigops-voximplant@20.8.5. 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.