OPSEC Failure Exposes Coquettte's Malware Campaigns on Bulletproof Hosting Servers
Apr 04, 2025
Threat Intelligence / Malware
A novice cybercrime actor has been observed leveraging the services of a Russian bulletproof hosting ( BPH ) provider called Proton66 to facilitate their operations. The findings come from DomainTools, which detected the activity after it discovered a phony website named cybersecureprotect[.]com hosted on Proton66 that masqueraded as an antivirus service. The threat intelligence firm said it identified an operational security (OPSEC) failure in the domain that left its malicious infrastructure exposed, thereby revealing the malicious payloads staged on the server. "This revelation led us down a rabbit hole into the operations of an emerging threat actor known as Coquettte – an amateur cybercriminal leveraging Proton66's bulletproof hosting to distribute malware and engage in other illicit activities," it said in a report shared with The Hacker News. Proton66, also linked to another BPH service known as PROSPERO, has been attributed to several campaigns distribut...
