ReversingLabs unknown stable yara

Win32_Trojan_Emotet [trojan]

Yara rule that detects Emotet trojan.

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Detection Logic

uint16(0) == 0x5A4D and 
        (
            $decrypt_resource_v1 and 
            $generate_filename_v1
        ) or 
        (
            $decrypt_resource_v2 and 
            $generate_filename_v2
        ) or
        (
            $decrypt_resource_v3 and 
            $generate_filename_v3
        ) or
        (
            $decrypt_resource_v4 and 
            $generate_filename_snippet_v4
        ) or
        (
            $decrypt_resource_snippet_v5 and
            all of ($liblzf_decompression_*)
        ) or
        (
            $decrypt_resource_snippet_v6 and
            all of ($liblzf_decompression_*)
        ) or
        (
            $decrypt_resource_snippet_v7 and
            $state_machine_snippet_v7
        )

Field Validations

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