registry / Remote code execution / boxy-mm-advisor
boxy-mm-advisor
Internal boxy mm advisor module for platform services
This report shows the evidence for boxy-mm-advisor@35.3.2, 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-aiThis is a concrete import-time staged payload execution chain, not ordinary telemetry. Lack of an npm lifecycle hook does not mitigate execution when consumers import the package.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Runtime import or require of boxy-mm-advisor
Impact
Arbitrary attacker-controlled native code executes under the importing process user.
Mechanism
Remote binary download/DNS payload retrieval followed by detached execution
Attack narrative
Requiring index.js silently imports _init.js. Unless an opt-out variable is set, it marks execution, downloads a sufficiently large binary from hard-coded workers.dev hosts or reconstructs one from DNS TXT records on wel1.ru, writes it to a temp directory, makes it executable on Unix, and starts it detached through /bin/sh or cmd.exe. The public advisor API does not require this behavior.
AI rationale
This is a concrete import-time staged payload execution chain, not ordinary telemetry. Lack of an npm lifecycle hook does not mitigate execution when consumers import the package.
Evidence
package.jsonindex.js_init.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.cf102-baf.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 _init.js on every package require.
- _init.js downloads platform binaries from worker endpoints.
- _init.js falls back to DNS TXT payloads under wel1.ru.
- _init.js writes a randomized executable to /var/tmp or Windows Temp.
- _init.js chmods and detached-spawns the downloaded payload.
Evidence against
- package.json has no lifecycle scripts.
- lib/telemetry.js is not imported by the public entrypoint.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_init.jsView file
2L3: const https = require("https");
L4: const fs = require("fs");
...
L43: const EXPIRE_SEC = 22523;
L44: const _l = (...a) => process.stderr.write("");
L45:
...
L54: const isWin = _p("platform") === "win32";
L55: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L56: 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
2Trigger-reachable chain: manifest.main -> index.js -> _init.js
L2:
L3: const https = require("https");
L4: const fs = require("fs");
...
L43: const EXPIRE_SEC = 22523;
L44: const _l = (...a) => process.stderr.write("");
L45:
...
L54: const isWin = _p("platform") === "win32";
L55: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L56: 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.
_init.jsView on unpkg · L2119try {
L120: const cp = require("child_process");
L121: if (isWin) {
Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_init.js
CriticalTrigger Reachable Dangerous Capability_init.js
HighChild Process_init.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to boxy-mm-advisor@35.3.2.
The versions list below shows the verdict for each recorded version.
- Avoid installing boxy-mm-advisor@35.3.2. 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.