Help TDS Linked to Hotejka as 20,000+ Cloudflare Pages Domains Host Tech Support Scams
Help TDS linked to Hotejka, hosting tech support scams on 20,000+ Cloudflare Pages domains.
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Summary
A long-running Traffic Distribution System (TDS) known as Help TDS has been linked to a Russian-language affiliate program called Hotejka, which is likely a rebrand of the ROI777 operation. Help TDS has been active since at least 2017, providing PHP code templates to affiliates. These templates are installed on compromised websites to redirect unsuspecting users to tech support scams, with over 20,000 Cloudflare Pages domains identified as hosting these malicious redirects.
The lesson from this incident
Full lessonThe Help TDS operation, active since at least 2017, demonstrates how long-lived cybercriminal affiliate networks can persist by compromising legitimate websites and abusing trusted platforms like Cloudflare Pages to evade detection. Attackers install PHP redirect templates on vulnerable or poorly maintained websites, silently funneling unsuspecting users to tech support scam pages — a tactic that exploits both website owner negligence and end-user trust in familiar domains. The sheer scale of 20,000+ malicious domains highlights how traffic distribution systems can industrialize fraud with minimal cost to attackers. This matters because compromised legitimate sites damage the reputation of innocent website owners while providing cover for criminal activity. End users are especially at risk because the redirect chain obscures the malicious origin, making it harder for both humans and security tools to detect the threat.
What helps against this
How we list vendors- External attack surface management (EASM)
You find your forgotten internet-facing systems before attackers do.
- Threat intelligence
Attack campaigns reach your sector, suppliers or software before your team hears about them.
- DNS filtering and secure web gateway
Users cannot reach known-malicious sites, and malware cannot phone home.
Indicators of Compromise
- malware — Help TDS