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intel/seen/file-names: Use file_over_new_connection()

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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
This commit is contained in:
Arne Welzel 2022-12-14 16:30:21 +01:00
parent 92e4c11914
commit 6d19c49efe
6 changed files with 91 additions and 1 deletions
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11
testing/btest/Baseline/scripts.policy.frameworks.intel.seen.filename-in-http-get-response/intel.log Normal file
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### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
#separator \x09
#set_separator ,
#empty_field (empty)
#unset_field -
#path intel
#open XXXX-XX-XX-XX-XX-XX
#fields ts uid id.orig_h id.orig_p id.resp_h id.resp_p seen.indicator seen.indicator_type seen.where seen.node matched sources fuid file_mime_type file_desc
#types time string addr port addr port string enum enum string set[enum] set[string] string string string
XXXXXXXXXX.XXXXXX CHhAvVGS1DHFjwGM9 10.1.9.63 63526 54.175.222.246 80 test.json Intel::FILE_NAME Files::IN_NAME zeek Intel::FILE_NAME source1 FiokML36uuy5agr5x3 - http://httpbin.org/response-headers?Content-Type=application/octet-stream; charset=UTF-8&Content-Disposition=attachment; filename="test.json"
#close XXXX-XX-XX-XX-XX-XX