Vendor

Baidu

0 mentions in 7 days · 2 in 30 days · 2 total · first seen Aug 20, 2026 · last 14d ago

Timeline2 articles

Counterfeit installers to system compromise: Tracking a deceptive software download campaign

Microsoft tracks a counterfeit software-installer campaign compromising multinationals' China operations, moderately linked to the Silver Fox (Yinhu) actor.

Microsoft Defender Experts is tracking an active campaign using spoofed software download sites for brands such as Razer, Kaspersky, Microsoft Edge, Calibre, and Baidu Netdisk on .com.cn and .hl.cn domains, delivering installer archives whose hashes change per download, indicating server-side payload generation. The implants establish persistence, weaken security protections, and communicate with attacker-controlled infrastructure, with confirmed compromises across healthcare, manufacturing, gaming, technology, logistics, government, and education. Microsoft assesses with moderate confidence that the activity matches the publicly reported Silver Fox (Yinhu) fake software campaign; it has not attributed it to a nation-state actor.

Microsoft Security BlogSep 1, 22:48 UTC · 14d agoThreat actor in the wild1

CDN Tsunami Attack Abuses HTTP/3 Translation for Up to 350x DoS Amplification

Researchers disclosed two DoS attacks exploiting CDNs' HTTP/3-to-HTTP/1.1 translation to amplify low-bandwidth requests up to 350x against origin servers.

Researchers named the two techniques HTTP/3 Bandwidth Amplification (HBA) and HTTP/3 Connection Amplification (HCA), exploiting the gap where CDNs speak HTTP/3 to browsers but only HTTP/1.1 to origins. All six tested CDNs (Alibaba, Baidu, Cloudflare, CloudFront, Fastly, Tencent) were susceptible to HBA, and five to HCA, with Cloudflare immune to HCA because it buffers full requests before opening backend connections. Attackers using under 5 Mbps forced over 100 Mbps at origins, and the 350x factor applies only to Alibaba, Baidu, and Tencent, which support the QPACK dynamic table. Testing identified 42,330 potentially vulnerable subdomains out of 151,685 hosted on the six providers across the Tranco Top 1M.

The Hacker NewsAug 20, 11:39 UTC · 26d agoResearch

Appears with

threat actor Silver Fox 1 threat actor Yinhu 1 organization Microsoft 1 organization The Hacker News 1 product CDN Tsunami 1 product HTTP/3 Bandwidth Amplification 1 product HTTP/3 Connection Amplification 1 product Microsoft Defender Experts 1 product Microsoft Defender XDR 1 product Microsoft Edge 1 vendor Alibaba 1 vendor Alibaba Cloud 1 vendor Amazon CloudFront 1 vendor Calibre 1 vendor Cloudflare 1 vendor Fastly 1

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