challengersez[.]pro

challengersez.pro was observed hosting a brand‑impersonation campaign targeting the esports brand celer. The site’s HTML title reads “Global | eSports and Gaming Community”, which aligns with the declared impersonation of celer. The domain was registered on 21 February 2026 and resolves to the IPv4 address 193.221.201.81, an address owned by NEON CORE NETWORK LLC in Germany (AS205775). The hosting provider has not been identified beyond the ASN. The site is currently offline, but its recent registration suggests a short operational window.

VirusTotal records show that 14 of 93 scanning engines flagged the domain as malicious, indicating a consensus among security products that the site carries malicious intent. The domain appears on one public blocklist and has been referenced in three AlienVault OTX threat‑intel pulses, reinforcing its reputation as a threat. PhishDestroy has explicitly blocked the domain, and Gridinsoft assigns it a trust score of 0 out of 100, the lowest possible rating. The SSL certificate presented by the site is classified as “E8”, a rating that typically denotes weak or untrusted encryption.

Given the combination of a low‑trust SSL certificate, a zero trust score, multiple vendor detections, blocklist inclusion, and the explicit brand‑impersonation label, defenders should treat challengersez.pro as a confirmed malicious resource. Immediate mitigation steps include adding the domain and its resolving IP address to network‑level deny lists, updating web‑proxy and DNS filtering rules, and monitoring for any re‑appearance of the domain or related infrastructure. Analysts should also watch for other domains registered after February 2026 that resolve to the same IP block, as threat actors often reuse hosting assets. Continuous threat‑intel feeds should be consulted for any new pulses referencing this domain or its IP range.