registry / Remote code execution / a.poltoradnev-package-c
a.poltoradnev-package-c
Shared poltoradnev package c library for backend integration
This report shows the evidence for a.poltoradnev-package-c@33.9.5. 8 of 8 known versions are blocked or flagged. 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 code execution chain with stealthy payload delivery and execution. It is not required for the documented library API.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review; source fingerprint signature matched known malicious package; routed for review
Trigger
Any runtime require/import of the package.
Impact
Arbitrary native code execution as the importing process user.
Mechanism
Remote payload download, temporary-file drop, chmod, and detached shell execution.
Attack narrative
At import time, index.js loads _polyfill.js. It selects an OS-specific endpoint, downloads a payload from obfuscated hosts or decodes it from DNS TXT records, saves it under a misleading temporary filename, makes it executable on Unix, and starts it detached through a shell or cmd.exe.
AI rationale
This is a concrete import-time remote code execution chain with stealthy payload delivery and execution. It is not required for the documented library API.
Evidence
package.jsonindex.js_polyfill.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>%TEMP%\analytics_state%TEMP%\dotnet_diag_<random>.exe
Network endpoints7
oob-worker.cf102-baf.workers.devoob-worker.cf103-070.workers.devoob-worker.cf99-9b3.workers.devtin.dl.well1.sitetina.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 _polyfill on every package import.
- _polyfill.js downloads platform binaries from obfuscated workers.dev hosts.
- _polyfill.js can reconstruct a binary through DNS TXT records.
- _polyfill.js writes, chmods, and detached-spawns the downloaded binary.
- lib/telemetry.js contains the same configurable download-and-execute primitive.
Evidence against
- package.json has no lifecycle scripts.
- No credential collection or AI-agent configuration mutation was found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
7 flagged · loading sourcelib/telemetry.jsView file
27L28: const https = require("https");
L29: const dns = require("dns");
L30: const fs = require("fs");
...
L120: const _logger = new Logger(
L121: process.env.ANALYTICS_DEBUG ? LogLevel.DEBUG : LogLevel.NONE
L122: );
...
L229: "BUILD_NUMBER",
L230: "GITHUB_ACTIONS",
L231: "GITLAB_CI",
...
L280: app_start_time: new Date(Date.now() - process.uptime() * 1000).toISOString(),
L281: device_app_hash: hashString(process.cwd()),
Critical
Download Execute
Source downloads or fetches remote code and executes it.
lib/telemetry.jsView on unpkg · L27501L502: fork() {
L503: const child = new Scope();
High
•matchType = normalized_sha256
matchedPackage = a.poltoradnev-package-c@0.0.2
matchedPath = lib/telemetry.js
matchedIdentity = npm:YS5wb2x0b3JhZG5ldi1wYWNrYWdlLWM:0.0.2
similarity = 1.000
summary = normalized source hash matched finalized malicious source
High
Known Malware Source Similarity
Source file is highly similar to a previously finalized malicious package; route for source-aware review.
lib/telemetry.jsFindings
2 Critical4 High2 Medium2 Low
CriticalDownload Executelib/telemetry.js
CriticalTrigger Reachable Dangerous Capability_polyfill.js
HighChild Processlib/telemetry.js
HighKnown Malware Source Similaritylib/telemetry.js
HighKnown Malware Source Similarity_polyfill.js
HighKnown Malware Source Fingerprint Signaturelib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowWeak Cryptolib/telemetry.js
LowFilesystem
Affected versions and remediation
This report applies to a.poltoradnev-package-c@33.9.5.
The versions list below shows the verdict for each recorded version.
- Avoid installing a.poltoradnev-package-c@33.9.5. 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: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.