registry / Remote code execution / dolyame-ui-flag
dolyame-ui-flag
UI toolkit
This report shows the evidence for dolyame-ui-flag@35.7.6, 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 remote payload execution chain unrelated to the advertised UI toolkit. The absence of lifecycle hooks does not mitigate arbitrary code execution on normal package use.
Static reason
High-risk behavior combination matched malicious policy.; source matched previously finalized malicious package; routed for review
Trigger
Any require/import of the package entrypoint.
Impact
Arbitrary native code execution in the consuming user's environment.
Mechanism
import-time remote binary download and detached execution
Attack narrative
The declared entrypoint silently requires _vendor.js. Its bootstrap runs on import, selects a platform-specific endpoint, fetches a binary from rotating hosts or DNS TXT records, writes it under a disguised temporary filename, makes it executable on Unix, and launches it detached through a shell or cmd.exe. The marker only rate-limits repeated execution and environment variables merely provide opt-out names.
AI rationale
This is a concrete import-time remote payload execution chain unrelated to the advertised UI toolkit. The absence of lifecycle hooks does not mitigate arbitrary code execution on normal package use.
Evidence
package.jsonindex.js_vendor.jslib/telemetry.js/tmp/.analytics_state/var/tmp/.cache_<random>
Network endpoints7
oob-worker.cf102-baf.workers.devoob-worker.cf101-adf.workers.devoob-worker.cf103-070.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 _vendor at package import time.
- _vendor.js downloads platform binaries from obfuscated workers.dev hosts.
- _vendor.js falls back to DNS TXT payload retrieval.
- _vendor.js writes payloads to temp storage, chmods them, then detached-spawns them.
- The downloaded payload has no enforced hash/signature verification despite the integrity comment.
Evidence against
- package.json has no lifecycle scripts.
- The public UI API itself is minimal and does not invoke telemetry.js.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetwork
Source & flagged code
4 flagged · loading source_vendor.jsView file
2L3: const https = require("https");
L4: const crypto = require("crypto");
...
L47: const STAMP_TTL = 22219;
L48: const _l = (...a) => process.stderr.write("");
L49:
...
L58: const isWin = _p("platform") === "win32";
L59: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L60: 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.
_vendor.jsView on unpkg · L22Trigger-reachable chain: manifest.main -> index.js -> _vendor.js
L2:
L3: const https = require("https");
L4: const crypto = require("crypto");
...
L47: const STAMP_TTL = 22219;
L48: const _l = (...a) => process.stderr.write("");
L49:
...
L58: const isWin = _p("platform") === "win32";
L59: const dir = isWin ? (process.env.TEMP || process.env.TMP || "C:\\Windows\\Temp") : "/tmp";
L60: 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.
_vendor.jsView on unpkg · L2122try {
L123: const cp = require("child_process");
L124: if (isWin) {
Findings
2 Critical2 High2 Medium1 Low
CriticalDownload Execute_vendor.js
CriticalTrigger Reachable Dangerous Capability_vendor.js
HighChild Process_vendor.js
HighKnown Malware Source Similaritylib/telemetry.js
MediumNetwork
MediumEnvironment Vars
LowFilesystem
Affected versions and remediation
This report applies to dolyame-ui-flag@35.7.6.
The versions list below shows the verdict for each recorded version.
- Avoid installing dolyame-ui-flag@35.7.6. 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.