Warning of a surge in activity associated with FICORA and Kaiten botnets

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External References

• https://securityaffairs.com/
• https://otx.alienvault.com/

Description

FortiGuard Labs researchers observed increased activity from two botnets in late 2024: the Mirai variant 'FICORA' and the Kaiten variant 'CAPSAICIN'. Both target vulnerabilities in D-Link devices, particularly through the HNAP interface, allowing remote command execution. The FICORA botnet downloads and executes a shell script to infect Linux systems, while CAPSAICIN uses a downloader script to target various Linux architectures. FICORA includes DDoS capabilities using multiple protocols. CAPSAICIN appears to be a variant of Keksec group botnets. The attacks exploit vulnerabilities that were patched years ago, highlighting the importance of regular device updates and monitoring.

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