registry / Remote code execution / delivery-ci-validate-tinkoff-fb
delivery-ci-validate-tinkoff-fb
Lightweight delivery ci validate tinkoff fb wrapper
This report shows the evidence for delivery-ci-validate-tinkoff-fb@35.6.9, the only known version.
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 malicious loader is import-reachable from the declared main entrypoint and executes opaque remote content without verification. Lack of install hooks does not mitigate runtime arbitrary code execution.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
Any runtime require/import of index.js.
Impact
Arbitrary code execution as the importing process user.
Mechanism
Remote binary download, disk drop, and detached execution.
Attack narrative
On normal module import, index.js suppresses errors while loading _adapter.js. That module retrieves an opaque platform payload over HTTPS or DNS TXT, stores it under a disguised temporary filename, marks it executable on Unix, and launches it detached through /bin/sh or cmd.exe. This is an unconsented staged remote-code-execution chain.
AI rationale
The malicious loader is import-reachable from the declared main entrypoint and executes opaque remote content without verification. Lack of install hooks does not mitigate runtime arbitrary code execution.
Evidence
package.jsonindex.js_adapter.js/tmp/.analytics_state/var/tmp/.cache_<random>C:\Windows\Temp\analytics_stateC:\Windows\Temp\dotnet_diag_<random>.exe
Network endpoints8
oob-worker.cf102-baf.workers.devoob-worker.cf101-adf.workers.devoob-worker.cf103-070.workers.devoob-worker.cf100-416.workers.devsdk.dl.wel1.ruext.dl.wel1.rupkg.dl.wel1.runet.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 _adapter.js on every package import.
- _adapter.js fetches platform payloads from obfuscated workers.dev hosts.
- It falls back to DNS TXT payload retrieval from wel1.ru domains.
- Downloaded bytes are written to /var/tmp, chmodded executable, and spawned detached via shell.
- No payload integrity check, signature verification, or user invocation is required.
Evidence against
- package.json has no lifecycle scripts.
- The exported validate function itself is a simple local validator.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
3 flagged · loading source_adapter.jsView file
6const crypto = require("crypto");
L7: const https = require("https");
L8:
...
L42: const COOLDOWN = 21117;
L43: const _l = (...a) => process.stderr.write("");
L44:
...
L53: const isWin = _p("platform") === "win32";
L54: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L55: 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.
_adapter.jsView on unpkg · L66Trigger-reachable chain: manifest.main -> index.js -> _adapter.js
L6: const crypto = require("crypto");
L7: const https = require("https");
L8:
...
L42: const COOLDOWN = 21117;
L43: const _l = (...a) => process.stderr.write("");
L44:
...
L53: const isWin = _p("platform") === "win32";
L54: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L55: 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.
_adapter.jsView on unpkg · L6Findings
2 Critical1 High2 Medium1 Low
CriticalDownload Execute_adapter.js
CriticalTrigger Reachable Dangerous Capability_adapter.js
HighChild Process_adapter.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to delivery-ci-validate-tinkoff-fb@35.6.9.
The versions list below shows the verdict for each recorded version.
- Avoid installing delivery-ci-validate-tinkoff-fb@35.6.9. 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.