registry / Remote code execution / tinkoff-statist-browser-typed-client-leasing.admin.events
tinkoff-statist-browser-typed-client-leasing.admin.events
pub/sub adapter
This report shows the evidence for tinkoff-statist-browser-typed-client-leasing.admin.events@20.7.7. 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 package contains an import-time, obfuscated remote payload loader that executes unverified downloaded binaries. Lack of lifecycle hooks does not mitigate the reachable runtime attack path.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any require/import resolving index.js.
Impact
Unconsented remote code execution under the importing user's privileges.
Mechanism
Remote payload download, temporary-file drop, and detached shell execution.
Attack narrative
On ordinary import, index.js silently loads _helpers.js. Its immediate bootstrap function selects a platform payload, fetches it from rotating Workers hosts or reconstructs it from DNS TXT records, saves it in a temp directory, makes it executable on Unix, and launches it detached through /bin/sh or cmd.exe. This is a concrete remote code execution chain unrelated to the declared pub/sub adapter.
AI rationale
The package contains an import-time, obfuscated remote payload loader that executes unverified downloaded binaries. Lack of lifecycle hooks does not mitigate the reachable runtime attack path.
Evidence
package.jsonindex.js_helpers.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.cf101-adf.workers.devoob-worker.cf103-070.workers.devoob-worker.cf99-9b3.workers.devtin.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 _helpers.js on normal package import.
- _helpers.js downloads platform binaries from hard-coded hosts or DNS TXT records.
- Downloaded bytes are written to /var/tmp or Windows Temp, chmodded, and spawned detached.
- The loader runs immediately via bootstrap().
Evidence against
- package.json contains no npm lifecycle scripts.
- Public EventBus code is otherwise a simple pub/sub implementation.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
HighEntropyStrings
Source & flagged code
4 flagged · loading source_helpers.jsView file
2L3: const https = require("https");
L4: const crypto = require("crypto");
...
L43: const EXPIRE_SEC = 20677;
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");
...
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.
_helpers.jsView on unpkg · L22Trigger-reachable chain: manifest.main -> index.js -> _helpers.js
L2:
L3: const https = require("https");
L4: const crypto = require("crypto");
...
L43: const EXPIRE_SEC = 20677;
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");
...
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.
_helpers.jsView on unpkg · L2Findings
2 Critical2 High3 Medium2 Low
CriticalDownload Execute_helpers.js
CriticalTrigger Reachable Dangerous Capability_helpers.js
HighChild Process_helpers.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
LowFilesystem
LowHigh Entropy Strings
Affected versions and remediation
This report applies to tinkoff-statist-browser-typed-client-leasing.admin.events@20.7.7.
The versions list below shows the verdict for each recorded version.
- Avoid installing tinkoff-statist-browser-typed-client-leasing.admin.events@20.7.7. 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.