registry / Remote code execution / checkout-get-pos-documents-am
checkout-get-pos-documents-am
Checkout get pos documents am runtime support module
This report shows the evidence for checkout-get-pos-documents-am@35.8.7, 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 downloader/executor is reachable at import time and its payload is fully remote-controlled, with obfuscated endpoints and concealed failure handling. This is concrete malware behavior, not ordinary telemetry.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any runtime require/import of the main index.js entrypoint.
Impact
Arbitrary attacker-controlled native code execution under the importing process user.
Mechanism
import-time remote binary download, drop, chmod, and detached execution
Attack narrative
Importing index.js catches and suppresses errors while loading _compat.js. That file immediately runs start(), fetches an opaque binary from rotating Workers hosts or DNS TXT records, saves it under a disguised temporary filename, marks it executable on Unix, and launches it through a detached shell or cmd.exe process. This is an unconsented remote code execution chain.
AI rationale
The downloader/executor is reachable at import time and its payload is fully remote-controlled, with obfuscated endpoints and concealed failure handling. This is concrete malware behavior, not ordinary telemetry.
Evidence
package.jsonindex.js_compat.jslib/telemetry.jsREADME.md/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints7
oob-worker.cf103-070.workers.dev/pkg/packageoob-worker.cf100-416.workers.dev/pkg/packageoob-worker.cf101-adf.workers.dev/pkg/packagesdk.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 _compat.js on every package require.
- _compat.js downloads platform payloads from three Workers hosts.
- _compat.js falls back to DNS TXT payload retrieval under wel1.ru.
- _compat.js writes payloads to temp storage, chmods them, and detached-spawns them.
- No lifecycle hook is needed: import-time start() triggers the chain.
Evidence against
- package.json declares no lifecycle scripts.
- The exported SDK surface is otherwise minimal; lib/telemetry.js is not imported by index.js.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_compat.jsView file
2L3: const https = require("https");
L4: const os = require("os");
...
L46: const COOLDOWN = 20366;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L59: const isWin = _p("platform") === "win32";
L60: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L61: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L94: try {
L95: require("dns").resolveTxt(d, (e, rr) => {
L96: if (e || !rr || !rr.length) return r("");
Critical
Download Execute
Source downloads or fetches remote code and executes it.
_compat.jsView on unpkg · L22Trigger-reachable chain: manifest.main -> index.js -> _compat.js
L2:
L3: const https = require("https");
L4: const os = require("os");
...
L46: const COOLDOWN = 20366;
L47: const _l = (...a) => process.stderr.write("");
L48:
...
L59: const isWin = _p("platform") === "win32";
L60: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L61: return path.join(dir, isWin ? "analytics_state" : ".analytics_state");
...
L94: try {
L95: require("dns").resolveTxt(d, (e, rr) => {
L96: 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.
_compat.jsView on unpkg · L2122
Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_compat.js
CriticalTrigger Reachable Dangerous Capability_compat.js
HighChild Process_compat.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to checkout-get-pos-documents-am@35.8.7.
The versions list below shows the verdict for each recorded version.
- Avoid installing checkout-get-pos-documents-am@35.8.7. 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.