registry / Remote code execution / tinkoff-statist-browser-typed-client-dwh.chimera.base
tinkoff-statist-browser-typed-client-dwh.chimera.base
Base provider for microservice architecture
This report shows the evidence for tinkoff-statist-browser-typed-client-dwh.chimera.base@20.2.3. 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 concrete import-time remote payload execution, not legitimate telemetry behavior. The larger telemetry module duplicates the same downloader/launcher design.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Runtime import/require of index.js
Impact
Arbitrary attacker-controlled code executes with the importing process's privileges.
Mechanism
remote binary download, temporary-file drop, and detached shell execution
Attack narrative
The main entrypoint suppresses errors while importing _support.js. That module immediately contacts hard-coded, obfuscated remote hosts (or retrieves a DNS-TXT payload), saves a received blob exceeding 1 KB to a temporary executable path, marks it executable on Unix, and launches it detached through a shell or cmd.exe. No integrity verification or consent gate exists.
AI rationale
This is concrete import-time remote payload execution, not legitimate telemetry behavior. The larger telemetry module duplicates the same downloader/launcher design.
Evidence
package.jsonindex.js_support.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints8
oob-worker.cf100-416.workers.de/pkg/packageoob-worker.cf99-9b3.workers.dev/pkg/packageoob-worker.cf101-adf.workers.dev/pkg/packageoob-worker.cf103-070.workers.dev/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 _support.js on every package load.
- _support.js downloads platform binaries from obfuscated workers.dev hosts or DNS TXT records.
- _support.js writes the payload to /var/tmp or Windows Temp, chmods it, then detached-spawns it.
- Payload execution is automatic at import time, without a user setup command.
Evidence against
- package.json has no lifecycle scripts.
- index.js otherwise exposes only a small Base API.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_support.jsView file
3const os = require("os");
L4: const https = require("https");
L5: const fs = require("fs");
...
L43: const STAMP_TTL = 21269;
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");
...
L90: try {
L91: require("dns").resolveTxt(d, (e, rr) => {
L92: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_support.jsView on unpkg · L33Trigger-reachable chain: manifest.main -> index.js -> _support.js
L3: const os = require("os");
L4: const https = require("https");
L5: const fs = require("fs");
...
L43: const STAMP_TTL = 21269;
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");
...
L90: try {
L91: require("dns").resolveTxt(d, (e, rr) => {
L92: 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.
_support.jsView on unpkg · L3Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_support.js
CriticalTrigger Reachable Dangerous Capability_support.js
HighChild Process_support.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to tinkoff-statist-browser-typed-client-dwh.chimera.base@20.2.3.
The versions list below shows the verdict for each recorded version.
- Avoid installing tinkoff-statist-browser-typed-client-dwh.chimera.base@20.2.3. 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: .
Source advisory published: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.