VDB
GCVE-110-OSM-2026-1184
GCVE-110-OSM-2026-1184
Advisory PublishedCVSS 8.8/10
Executes a bundled Windows PE32+ binary (core/windll.exe) via a postinstall script and establishes a C2 beacon to hardcoded IP 188.40.64.61 on ports 6292-6299 via a 112KB VM-obfuscated JavaScript payload in index.js.
core.js (postinstall hook) runs core/windll.exe via child_process.exec(). index.js implements a custom bytecode VM (vmx_c06e1) with a 200+ operator dispatch table. Hardcoded C2 constants decoded from hex: 0xbc.0x28.0x40.0x3d = 188.40.64.61; ports 0x1894=6292, 0x1898=6296, 0x189b=6299; UID token 'be330a3bde86ced606fa9fdc8ff43bb2'. On load, async function ss() initiates a C2 connection via spawn().
Weaknesses (CWE)
CWE-506Embedded Malicious Code
Risk Scores
CVSS 3.1
8.8/10
High · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| unknown | express-lib-validator | 1.0.1 (affected) | — |
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