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6d19c49efe
The seen/file-names script relies on f$info$filename to be populated. For HTTP and other network protocols, however, this field is only populated during file_over_new_connection() that's running after file_new(). Use the file_new() event only for files without connections and file_over_new_connection() implies that f$conns is populated, anyway. Special case SMB to avoid finding files twice, because there's a custom implementation in seen/smb-filenames.zeek. Fixes #2647
30 lines
888 B
Text
30 lines
888 B
Text
@load base/frameworks/intel
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@load ./where-locations
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event file_new(f: fa_file)
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{
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# If there are connections attached, we'll be using
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# file_over_new_connection() for reporting the
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# filename instead as it's more likely to be populated.
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if ( f?$conns && |f$conns| > 0 )
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return;
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if ( f?$info && f$info?$filename )
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Intel::seen([$indicator=f$info$filename,
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$indicator_type=Intel::FILE_NAME,
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$f=f,
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$where=Files::IN_NAME]);
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}
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event file_over_new_connection(f: fa_file, c: connection, is_orig: bool) &priority=-5
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{
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# Skip SMB, there's a custom implementation in smb-filenames.zeek
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if ( f$source == "SMB" )
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return;
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if ( f?$info && f$info?$filename )
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Intel::seen([$indicator=f$info$filename,
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$indicator_type=Intel::FILE_NAME,
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$f=f,
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$where=Files::IN_NAME]);
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}
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