Description
Fetch and execute an x86 payload from an FTP server.
Performs a TXT query against a series of DNS record(s) and executes the returned x86 shellcode. The DNSZONE option is used as the base name to iterate over. The payload will first request the TXT contents of the a hostname, followed by b, then c, etc. until there are no more records. For each record that is returned, exactly 255 bytes from it are copied into a buffer that is eventually executed. This buffer should be encoded using x86/alpha_mixed with the BufferRegister option set to EDI.
Module options
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use payload/cmd/windows/ftp/x86/dns/txt_query_execmsf undefined(txt_query_exec) > show actions ...actions...msf undefined(txt_query_exec) > set ACTION < action-name >msf undefined(txt_query_exec) > show options ...show and set options...msf undefined(txt_query_exec) > runPrioritise with Active Threat Intelligence
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