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IE 0-Day On GOV.CN

ID: 1b078f6e-c63a-5641-b2ef-2f5c0a071e67

STIX ID: report--1b078f6e-c63a-5641-b2ef-2f5c0a071e67

Feed Name: Zscaler Security Research Blog

Threat Score
80/100

Date Published: 2025-04-02

Date Updated: 2026-05-01

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A report describes multiple Chinese government (.gov.cn) web pages actively hosting an Internet Explorer zero-day exploit (CVE-2010-0249) that loads shellcode via ev1/ev2 JavaScript routines to download a payload named v.exe, identified as a Hupigon backdoor. The analysis includes screenshots of the exploit code, VirusTotal detection (12/41), AV attribution to Hupigon (capabilities include webcam access, DDoS, rootkit, keylogging and data exfiltration), and lists several affected government domains, warning users (especially IE6 users) to upgrade or avoid IE.

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