S9052 MiniFast

malwareEnterprise

platformsWindows

also known asMiniFast

MiniFast is a custom malware designed for long-term persistence and remote code execution. MiniFast is a modular malware suspected of being generated using artificial intelligence (AI). MiniFast was first observed in early-2026 and is a modified version of the MiniJunk framework. MiniFast has been affiliated with the cyber espionage threat group NIMBUS MANTICORE.

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techniques used (21)

ATT&CK techniques this enables or maps to.

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used by groups (1)

Threat groups associated with this.

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source

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