MAL-2026-13570
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (98b117a5b8b618c0597bcc422e68216cd3626389417aec2940febf447c033a88)
On require of the package's main entry (index.js), compat.js and lib/telemetry.js run a bootstrap routine that downloads a platform-specific binary (linux_x64, linux_arm64, darwin, win32.exe) from a shuffled list of obfuscated Cloudflare Workers subdomains (oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev), with a DNS-TXT fallback to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The binary is written to /tmp or %TEMP% under a disguised name (.cache on unix, dotnet_diag_.exe on Windows), chmod 755, and spawned detached via cp.spawn("/bin/sh", ["-c", filePath + " &"], {detached:true, stdio:"ignore"}).unref(). No version pinning, no hash or signature verification. Destination hosts and sensitive API names are reconstructed at runtime via string-split concatenation (e.g. ["oob-worker.cf100-416.w","orkers.dev"].join(""), require("child_"+"process"), fs["chmod"+"Sync"], os"host"+"name") to evade static string matching. The behavior is framed with an 'analytics/telemetry' cover story and opt-out env vars. lib/telemetry.js additionally assembles a base64-encoded payload (Buffer.from(chunks, "base64")) and executes it via the same spawn/chmod chain, providing a second load-time RCE path.
- CWE-506 - The product contains code that appears to be malicious in nature.
{
"affected": [
{
"database_specific": {
"cwes": [
{
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code"
}
],
"indicators": {
"evidence_files": [
{
"path": "_compat.js",
"sha256": "a6eec2dba5b1a19c34a46f1cc627f866f127411d2d7a3f2b57fa062217ed5515",
"tlsh": "1aa1976916fa30180792e5d4841f9816719af65333c4e998fb8c6a984fda134c3f39ec"
},
{
"path": "lib/telemetry.js",
"sha256": "bf2e1a131d5d809bceccbab3025a6236104d460c54279f51ced09407cd3b1ba6",
"tlsh": "85733f4966fb10214263b0685fbb40437635c4072a4aed5dba9c43ec9f8db3896f1fb9"
}
],
"package_integrity": [
{
"filename": "dolyame-ui-focusstatehoc-35.8.1.tgz",
"hashes": {
"sha1": "33c0423ac8867680a6976795fe4b16e1a0f7503f",
"sha512_sri": "sha512-kSwEu9C6Ow/FGg3aODxquCy4qgfUBUFXVYVoQNDO6VJejogOAHtR3mDQIr/qC0AVmnJXdU/DoRcTJtWx7z2meQ=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "dolyame-ui-focusstatehoc"
},
"versions": [
"35.8.1"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-017009",
"import_time": "2026-08-07T12:51:22.043229333Z",
"modified_time": "2026-08-07T12:30:35Z",
"sha256": "98b117a5b8b618c0597bcc422e68216cd3626389417aec2940febf447c033a88",
"source": "amazon-inspector",
"versions": [
"35.8.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (98b117a5b8b618c0597bcc422e68216cd3626389417aec2940febf447c033a88)\nOn require of the package\u0027s main entry (index.js), _compat.js and lib/telemetry.js run a bootstrap routine that downloads a platform-specific binary (linux_x64, linux_arm64, darwin, win32.exe) from a shuffled list of obfuscated Cloudflare Workers subdomains (oob-worker.cf100-416.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev), with a DNS-TXT fallback to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru. The binary is written to /tmp or %TEMP% under a disguised name (.cache_\u003chex\u003e on unix, dotnet_diag_\u003chex\u003e.exe on Windows), chmod 755, and spawned detached via cp.spawn(\"/bin/sh\", [\"-c\", filePath + \" \u0026\"], {detached:true, stdio:\"ignore\"}).unref(). No version pinning, no hash or signature verification. Destination hosts and sensitive API names are reconstructed at runtime via string-split concatenation (e.g. [\"oob-worker.cf100-416.w\",\"orkers.dev\"].join(\"\"), require(\"child_\"+\"process\"), fs[\"chmod\"+\"Sync\"], os[\"host\"+\"name\"]()) to evade static string matching. The behavior is framed with an \u0027analytics/telemetry\u0027 cover story and opt-out env vars. lib/telemetry.js additionally assembles a base64-encoded payload (Buffer.from(chunks, \"base64\")) and executes it via the same spawn/chmod chain, providing a second load-time RCE path.\n",
"id": "MAL-2026-13570",
"modified": "2026-08-07T12:30:35Z",
"published": "2026-08-07T12:30:35Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/dolyame-ui-focusstatehoc/v/35.8.1"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in dolyame-ui-focusstatehoc (npm)"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.