registry / Remote code execution / bigops-activity-headers-interceptor

bigops-activity-headers-interceptor

Lightweight bigops activity headers interceptor wrapper

This report shows the evidence for bigops-activity-headers-interceptor@35.6.8. 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-ai

The advertised interceptor has no functional connection to hidden import-time remote executable delivery. This is a concrete remote-code-execution chain, not merely telemetry behavior.

Static reason

High-risk behavior combination matched malicious policy.

Trigger

Any runtime require/import of index.js.

Impact

Arbitrary native code execution as the importing process user.

Mechanism

import-time remote binary download and detached execution

Attack narrative

When a consumer imports index.js, its try-require invokes _helpers.js. That module selects a platform payload path, attempts HTTPS downloads from obfuscated hard-coded hosts, and falls back to DNS TXT payload retrieval. If it receives more than 1000 bytes, it drops the bytes into a temporary executable, marks it executable on Unix, and launches it in a detached shell process.

AI rationale

The advertised interceptor has no functional connection to hidden import-time remote executable delivery. This is a concrete remote-code-execution chain, not merely telemetry behavior.

Evidence

index.js_helpers.jspackage.json/tmp/.analytics_state/var/tmp/.cache_<random>

Network endpoints7

oob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf103-070.workers.devoob-worker.cf100-416.workers.devsdk.dl.wel1.ruext.dl.wel1.rupkg.dl.wel1.runet.dl.wel1.ru

Decision evidence

public snapshot

AI called this Malicious at 99.0% confidence as Malware with low false-positive risk.

Evidence for block

index.js imports _helpers.js on every package import.
_helpers.js downloads platform payloads from hard-coded workers.dev hosts.
_helpers.js can retrieve base64 payloads via hard-coded .ru DNS TXT records.
Downloaded bytes are written under /var/tmp or Windows Temp, chmodded, then spawned detached.
No integrity, signature, or user action guards the payload execution.

Evidence against

package.json has no npm lifecycle scripts.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetwork

Supply chainNo supply-chain packaging signals triggered.

ManifestNo manifest risk signals triggered.

scanned 3 file(s), 84.5 KB of source

Source & flagged code

3 flagged

_helpers.jsView file

2L3: const https = require("https"); L4: const crypto = require("crypto"); ... L43: const MAX_AGE = 21345; L44: const _l = (...a) => process.stderr.write(""); L45: ... L55: const isWin = _p("platform") === "win32"; L56: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp"; L57: return path.join(dir, isWin ? "analytics_state" : ".analytics_state"); ... L88: try { L89: require("dns").resolveTxt(d, (e, rr) => { L90: if (e || !rr || !rr.length) return r("");

Critical

Download Execute

Source downloads or fetches remote code and executes it.

_helpers.jsView on unpkg · L2

2Trigger-reachable chain: manifest.main -> index.js -> _helpers.js L2: L3: const https = require("https"); L4: const crypto = require("crypto"); ... L43: const MAX_AGE = 21345; L44: const _l = (...a) => process.stderr.write(""); L45: ... L55: const isWin = _p("platform") === "win32"; L56: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp"; L57: return path.join(dir, isWin ? "analytics_state" : ".analytics_state"); ... L88: try { L89: require("dns").resolveTxt(d, (e, rr) => { L90: 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 · L2

117try { L118: const cp = require("child_process"); L119: if (isWin) {

High

Child Process

Package source references child process execution.

_helpers.jsView on unpkg · L117

Source & flagged code

3 flagged · loading source

_helpers.jsView file

Critical

Download Execute

Source downloads or fetches remote code and executes it.

_helpers.jsView on unpkg · L2

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 · L2

Findings

2 Critical1 High2 Medium1 Low

CriticalDownload Execute_helpers.js

CriticalTrigger Reachable Dangerous Capability_helpers.js

HighChild Process_helpers.js

MediumNetwork

MediumEnvironment Vars

LowFilesystem

Affected versions and remediation

This report applies to bigops-activity-headers-interceptor@35.6.8.

The versions list below shows the verdict for each recorded version.

Avoid installing bigops-activity-headers-interceptor@35.6.8. 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: 2026-08-05 15:30:35.241Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.

Versions

2 known versions

0.0.1-securitylatestClean—AllowPublishedAug 5, 2026, 6:04 PM 35.6.8shownMaliciousRemote Code ExecutionBlockPublishedAug 5, 2026, 1:55 PM

AI Security Review

Decision evidence

Source & flagged code

Source & flagged code

Findings

Affected versions and remediation

Versions

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