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files.log: Unroll and introduce uid and id fields

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This is a script-only change that unrolls File::Info records into
multiple files.log entries if the same file was seen over different
connections by single worker. Consequently, the File::Info record
gets the commonly used uid and id fields added. These fields are
optional for File::Info - a file may be analyzed without relation
to a network connection (e.g by using Input::add_analysis()).

The existing tx_hosts, rx_hosts and conn_uids fields of Files::Info
are not meaningful after this change and removed by default. Therefore,
files.log will have them removed, too.

The tx_hosts, rx_hosts and conn_uids fields can be revived by using the
policy script frameworks/files/deprecated-txhosts-rxhosts-connuids.zeek
included in the distribution. However, with v6.1 this script will be
removed.
This commit is contained in:
Arne Welzel 2022-08-16 17:22:20 +02:00
parent f631551ffb
commit d2314d2666
39 changed files with 412 additions and 113 deletions
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6
testing/btest/Baseline/scripts.base.protocols.smb.smb2/files.log
View file

@ -5,7 +5,7 @@
#unset_field -
#path files
#open XXXX-XX-XX-XX-XX-XX
#fields ts fuid tx_hosts rx_hosts conn_uids source depth analyzers mime_type filename duration local_orig is_orig seen_bytes total_bytes missing_bytes overflow_bytes timedout parent_fuid md5 sha1 sha256 extracted extracted_cutoff extracted_size
#types time string set[addr] set[addr] set[string] string count set[string] string string interval bool bool count count count count bool string string string string string bool count
XXXXXXXXXX.XXXXXX FwL5Z01az5ZsFYcHh5 10.0.0.11 10.0.0.12 CHhAvVGS1DHFjwGM9 SMB 0 (empty) application/pdf WP_SMBPlugin.pdf 0.073970 - T 1508939 - 0 0 F - - - - - - -
#fields ts fuid uid id.orig_h id.orig_p id.resp_h id.resp_p source depth analyzers mime_type filename duration local_orig is_orig seen_bytes total_bytes missing_bytes overflow_bytes timedout parent_fuid md5 sha1 sha256 extracted extracted_cutoff extracted_size
#types time string string addr port addr port string count set[string] string string interval bool bool count count count count bool string string string string string bool count
XXXXXXXXXX.XXXXXX FwL5Z01az5ZsFYcHh5 CHhAvVGS1DHFjwGM9 10.0.0.11 49208 10.0.0.12 445 SMB 0 (empty) application/pdf WP_SMBPlugin.pdf 0.073970 - T 1508939 - 0 0 F - - - - - - -
#close XXXX-XX-XX-XX-XX-XX