Chinese Cybercrime Group Runs Global SEO Fraud Ring Using Compromised IIS Servers
Oct 06, 2025
Malware / Data Breach
Cybersecurity researchers have shed light on a Chinese-speaking cybercrime group codenamed UAT-8099 that has been attributed to search engine optimization (SEO) fraud and theft of high-value credentials, configuration files, and certificate data. The attacks are designed to target Microsoft Internet Information Services (IIS) servers, with most of the infections reported in India, Thailand, Vietnam, Canada, and Brazil, spanning universities, tech firms, and telecom providers. The group was first discovered in April 2025. The targets are primarily mobile users, encompassing both Android and Apple iPhone devices. UAT-8099 is the latest China-linked actor to engage in SEO fraud for financial gain. As recently as last month, ESET revealed details of another threat actor named GhostRedirector that has managed to compromise at least 65 Windows servers primarily located in Brazil, Thailand, and Vietnam with a malicious IIS module codenamed Gamshen to facilitate SEO fraud. "UAT-809...