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OnyxC2 Malware-as-a-Service Offers Enterprise-Grade Data Theft

ID: 65846b7f-eb58-5e39-9ee5-05422ff6370b

STIX ID: report--65846b7f-eb58-5e39-9ee5-05422ff6370b

Feed Name: Security Affairs

Threat Score
82/100

Date Published: 2026-06-11

Date Updated: 2026-06-18

Author: Pierluigi Paganini

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OnyxC2 is a commercial Malware-as-a-Service infostealer that targets over 210 applications (browsers, password managers, 2FA extensions, wallets, FTP/email clients), uses DLL sideloading and encrypted payloads to evade detection, and bundles HVNC and remote-access tooling; BlackFog's analysis of active samples and operator panel data shows large-scale credential and session theft and confirms effectiveness of the delivery and evasion techniques.

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