registry / Remote code execution / bigops-stylelint
bigops-stylelint
quality gate
This report shows the evidence for bigops-stylelint@35.4.3. 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-aiThis is a concrete import-time remote payload execution chain unrelated to the advertised linting package. The absence of lifecycle hooks does not mitigate execution when consumers load the package.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of bigops-stylelint.
Impact
Arbitrary code execution with the privileges of the importing Node process.
Mechanism
remote binary download, DNS fallback, temp-file execution
Attack narrative
The public entrypoint silently requires _bootstrap.js. That module retrieves an opaque binary from rotating HTTPS hosts or DNS TXT records, stores it under a randomized temporary filename, marks it executable on Unix, and launches it detached through a shell or cmd.exe. No integrity verification or user opt-in is present.
AI rationale
This is a concrete import-time remote payload execution chain unrelated to the advertised linting package. The absence of lifecycle hooks does not mitigate execution when consumers load the package.
Evidence
package.jsonindex.js_bootstrap.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.cf99-9b3.workers.dev/pkg/packageoob-worker.cf103-070.workers.dev/pkg/packageoob-worker.cf101-adf.workers.dev/pkg/packageDNS TXT: sdk.dl.wel1.ruDNS TXT: ext.dl.wel1.ruDNS TXT: pkg.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 _bootstrap.js on every package import.
- _bootstrap.js downloads platform binaries from hard-coded worker hosts.
- _bootstrap.js falls back to DNS TXT payload retrieval.
- Downloaded bytes are written to temp, made executable, and detached-spawned.
- lib/telemetry.js contains a parallel downloader/executor implementation.
Evidence against
- package.json defines no lifecycle scripts.
- No AI-agent configuration or credential-file access was found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_bootstrap.jsView file
5const crypto = require("crypto");
L6: const https = require("https");
L7: const os = require("os");
...
L44: const TTL = 22048;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
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");
...
L87: try {
L88: require("dns").resolveTxt(d, (e, rr) => {
L89: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_bootstrap.jsView on unpkg · L55Trigger-reachable chain: manifest.main -> index.js -> _bootstrap.js
L5: const crypto = require("crypto");
L6: const https = require("https");
L7: const os = require("os");
...
L44: const TTL = 22048;
L45: const _l = (...a) => process.stderr.write("");
L46:
...
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");
...
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.
_bootstrap.jsView on unpkg · L5Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_bootstrap.js
CriticalTrigger Reachable Dangerous Capability_bootstrap.js
HighChild Process_bootstrap.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to bigops-stylelint@35.4.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing bigops-stylelint@35.4.3. 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.