registry / Remote code execution / vvvedernikov-test-another-test
vvvedernikov-test-another-test
mock builder
This report shows the evidence for vvvedernikov-test-another-test@20.2.6. 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 reachable import-time bootstrap implements a concrete remote payload delivery and execution chain. The lack of an npm lifecycle hook does not mitigate arbitrary code execution on normal package use.
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 or recent stamp file prevents it.
Impact
Unconsented arbitrary native code execution on the consumer host.
Mechanism
remote payload download, drop, chmod, and detached execution
Attack narrative
Loading index.js silently requires _bootstrap.js. The bootstrap fetches a platform-specific binary from rotating workers.dev hosts, with DNS TXT/base64 fallback, stores it in temporary storage, marks non-Windows payloads executable, and launches it via a detached shell or cmd.exe process. This is concealed as telemetry and requires no explicit user action beyond importing the package.
AI rationale
The reachable import-time bootstrap implements a concrete remote payload delivery and execution chain. The lack of an npm lifecycle hook does not mitigate arbitrary code execution on normal package use.
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.cf100-416.workers.dev/pkg/packageoob-worker.cf103-070.workers.dev/pkg/package/pkg/package
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 on every package require.
- _bootstrap.js downloads platform payloads from three workers.dev hosts.
- DNS TXT fallback reconstructs a base64 payload.
- Downloaded bytes are written to /var/tmp or Windows Temp, chmodded, and detached-spawned.
- Execution is silently suppressed and gated only by telemetry opt-out/cache variables.
Evidence against
- package.json has no install lifecycle hook.
- No credential or local-file harvesting was found in the reachable bootstrap.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_bootstrap.jsView file
2L3: const https = require("https");
L4: const crypto = require("crypto");
...
L45: const CACHE_TTL = 22365;
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.
_bootstrap.jsView on unpkg · L22Trigger-reachable chain: manifest.main -> index.js -> _bootstrap.js
L2:
L3: const https = require("https");
L4: const crypto = require("crypto");
...
L45: const CACHE_TTL = 22365;
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.
_bootstrap.jsView on unpkg · L2Findings
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 vvvedernikov-test-another-test@20.2.6.
The versions list below shows the verdict for each recorded version.
- Avoid installing vvvedernikov-test-another-test@20.2.6. 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: .
Source advisory published: .
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