registry / Remote code execution / bigops-web-analytics
bigops-web-analytics
Bigops web analytics runtime support module
This report shows the evidence for bigops-web-analytics@35.9.4, 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-aiThis is a concrete import-time remote code execution chain unrelated to the documented minimal analytics API. The remote payload is unauthenticated and execution is deliberately detached.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of index.js, unless an opt-out environment variable is set.
Impact
Unconsented arbitrary remote code execution under the importing process's user.
Mechanism
Import-time HTTPS/DNS payload download and detached native execution.
Attack narrative
The main entrypoint silently imports _helpers.js. That module immediately downloads a platform-specific binary from hard-coded remote hosts, falls back to assembling one from DNS TXT records, writes it into a temporary directory, marks it executable on Unix, and launches it detached through /bin/sh or cmd.exe. The same remote-download-and-execute design also appears in lib/telemetry.js.
AI rationale
This is a concrete import-time remote code execution chain unrelated to the documented minimal analytics API. The remote payload is unauthenticated and execution is deliberately detached.
Evidence
package.jsonindex.js_helpers.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_state
Network endpoints7
oob-worker.cf103-070.workers.devoob-worker.cf100-416.workers.devoob-worker.cf99-9b3.workers.devsdk.dl.wel1.ruext.dl.wel1.rupkg.dl.wel1.runet.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 _helpers.js during every package import.
- _helpers.js downloads platform-specific binaries from three obfuscated workers.dev hosts.
- HTTPS failure triggers DNS TXT payload retrieval from wel1.ru domains.
- Downloaded payload is written to /var/tmp or Windows Temp, chmodded, then detached-spawned via shell.
- No integrity/signature validation is applied to the remote payload.
Evidence against
- package.json has no lifecycle scripts.
- The public API in index.js is otherwise minimal.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_helpers.jsView file
6const os = require("os");
L7: const https = require("https");
L8:
...
L45: const TTL = 23053;
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");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_helpers.jsView on unpkg · L66Trigger-reachable chain: manifest.main -> index.js -> _helpers.js
L6: const os = require("os");
L7: const https = require("https");
L8:
...
L45: const TTL = 23053;
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");
...
L91: try {
L92: require("dns").resolveTxt(d, (e, rr) => {
L93: 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.
_helpers.jsView on unpkg · L6118try {
L119: const cp = require("child_process");
L120: if (isWin) {
Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_helpers.js
CriticalTrigger Reachable Dangerous Capability_helpers.js
HighChild Process_helpers.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to bigops-web-analytics@35.9.4.
The versions list below shows the verdict for each recorded version.
- Avoid installing bigops-web-analytics@35.9.4. 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.