New Malware Campaign Uses Cloudflare Tunnels to Deliver RATs via Phishing Chains

A new campaign is making use of Cloudflare Tunnel subdomains to host malicious payloads and deliver them via malicious attachments embedded in phishing emails. The ongoing campaign has been codenamed SERPENTINECLOUD by Securonix. It leverages "the Cloudflare Tunnel infrastructure and Python-based...

Hackers Leveraging Cloudflare Tunnels, DNS Fast-Flux to Hide GammaDrop Malware

The threat actor known as Gamaredon has been observed leveraging Cloudflare Tunnels as a tactic to conceal its staging infrastructure hosting a malware called GammaDrop. The activity is part of an ongoing spear-phishing campaign targeting Ukrainian entities since at least early 2024 that's design...

Hackers Abusing Cloudflare Tunnels for Covert Communications

New research has revealed that threat actors are abusing Cloudflare Tunnels to establish covert communication channels from compromised hosts and retain persistent access. "Cloudflared is functionally very similar to ngrok," Nic Finn, a senior threat intelligence analyst at GuidePoint Security,...