mirror of
https://github.com/zeek/zeek.git
synced 2025-10-03 23:28:20 +00:00
ded98cd373
This is based on commit 2731def9159247e6da8a3191783c89683363689c from the zeek-docs repo.
249 lines
9.2 KiB
ReStructuredText
249 lines
9.2 KiB
ReStructuredText
:tocdepth: 3
|
|
|
|
base/protocols/rdp/main.zeek
|
|
============================
|
|
.. zeek:namespace:: RDP
|
|
|
|
Implements base functionality for RDP analysis. Generates the rdp.log file.
|
|
|
|
:Namespace: RDP
|
|
:Imports: :doc:`base/protocols/conn/removal-hooks.zeek </scripts/base/protocols/conn/removal-hooks.zeek>`, :doc:`base/protocols/rdp/consts.zeek </scripts/base/protocols/rdp/consts.zeek>`
|
|
|
|
Summary
|
|
~~~~~~~
|
|
Runtime Options
|
|
###############
|
|
======================================================================================= ==================================================================
|
|
:zeek:id:`RDP::disable_analyzer_after_detection`: :zeek:type:`bool` :zeek:attr:`&redef` If true, detach the RDP analyzer from the connection to prevent
|
|
continuing to process encrypted traffic.
|
|
:zeek:id:`RDP::rdp_check_interval`: :zeek:type:`interval` :zeek:attr:`&redef` The amount of time to monitor an RDP session from when it is first
|
|
identified.
|
|
======================================================================================= ==================================================================
|
|
|
|
Types
|
|
#####
|
|
=========================================== =
|
|
:zeek:type:`RDP::Info`: :zeek:type:`record`
|
|
=========================================== =
|
|
|
|
Redefinitions
|
|
#############
|
|
==================================================================== ==============================================================================
|
|
:zeek:type:`Log::ID`: :zeek:type:`enum`
|
|
|
|
* :zeek:enum:`RDP::LOG`
|
|
:zeek:type:`RDP::Info`: :zeek:type:`record`
|
|
|
|
:New Fields: :zeek:type:`RDP::Info`
|
|
|
|
analyzer_id: :zeek:type:`count` :zeek:attr:`&optional`
|
|
The analyzer ID used for the analyzer instance attached
|
|
to each connection.
|
|
|
|
done: :zeek:type:`bool` :zeek:attr:`&default` = ``F`` :zeek:attr:`&optional`
|
|
Track status of logging RDP connections.
|
|
:zeek:type:`connection`: :zeek:type:`record`
|
|
|
|
:New Fields: :zeek:type:`connection`
|
|
|
|
rdp: :zeek:type:`RDP::Info` :zeek:attr:`&optional`
|
|
:zeek:id:`likely_server_ports`: :zeek:type:`set` :zeek:attr:`&redef`
|
|
==================================================================== ==============================================================================
|
|
|
|
Events
|
|
######
|
|
=========================================== ===================================================================
|
|
:zeek:id:`RDP::log_rdp`: :zeek:type:`event` Event that can be handled to access the rdp record as it is sent on
|
|
to the logging framework.
|
|
=========================================== ===================================================================
|
|
|
|
Hooks
|
|
#####
|
|
============================================================ ======================
|
|
:zeek:id:`RDP::finalize_rdp`: :zeek:type:`Conn::RemovalHook` RDP finalization hook.
|
|
:zeek:id:`RDP::log_policy`: :zeek:type:`Log::PolicyHook`
|
|
============================================================ ======================
|
|
|
|
|
|
Detailed Interface
|
|
~~~~~~~~~~~~~~~~~~
|
|
Runtime Options
|
|
###############
|
|
.. zeek:id:: RDP::disable_analyzer_after_detection
|
|
:source-code: base/protocols/rdp/main.zeek 67 67
|
|
|
|
:Type: :zeek:type:`bool`
|
|
:Attributes: :zeek:attr:`&redef`
|
|
:Default: ``F``
|
|
|
|
If true, detach the RDP analyzer from the connection to prevent
|
|
continuing to process encrypted traffic.
|
|
|
|
.. zeek:id:: RDP::rdp_check_interval
|
|
:source-code: base/protocols/rdp/main.zeek 71 71
|
|
|
|
:Type: :zeek:type:`interval`
|
|
:Attributes: :zeek:attr:`&redef`
|
|
:Default: ``10.0 secs``
|
|
|
|
The amount of time to monitor an RDP session from when it is first
|
|
identified. When this interval is reached, the session is logged.
|
|
|
|
Types
|
|
#####
|
|
.. zeek:type:: RDP::Info
|
|
:source-code: base/protocols/rdp/main.zeek 13 63
|
|
|
|
:Type: :zeek:type:`record`
|
|
|
|
|
|
.. zeek:field:: ts :zeek:type:`time` :zeek:attr:`&log`
|
|
|
|
Timestamp for when the event happened.
|
|
|
|
|
|
.. zeek:field:: uid :zeek:type:`string` :zeek:attr:`&log`
|
|
|
|
Unique ID for the connection.
|
|
|
|
|
|
.. zeek:field:: id :zeek:type:`conn_id` :zeek:attr:`&log`
|
|
|
|
The connection's 4-tuple of endpoint addresses/ports.
|
|
|
|
|
|
.. zeek:field:: cookie :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
Cookie value used by the client machine.
|
|
This is typically a username, but note that it will often
|
|
be truncated on the wire, to a maximum of 9 characters.
|
|
|
|
|
|
.. zeek:field:: result :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
Status result for the connection. It's a mix between
|
|
RDP negotiation failure messages and GCC server create
|
|
response messages.
|
|
|
|
|
|
.. zeek:field:: security_protocol :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
Security protocol chosen by the server.
|
|
|
|
|
|
.. zeek:field:: client_channels :zeek:type:`vector` of :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
The channels requested by the client
|
|
|
|
|
|
.. zeek:field:: keyboard_layout :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
Keyboard layout (language) of the client machine.
|
|
|
|
|
|
.. zeek:field:: client_build :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
RDP client version used by the client machine.
|
|
|
|
|
|
.. zeek:field:: client_name :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
Name of the client machine.
|
|
|
|
|
|
.. zeek:field:: client_dig_product_id :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
Product ID of the client machine.
|
|
|
|
|
|
.. zeek:field:: desktop_width :zeek:type:`count` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
Desktop width of the client machine.
|
|
|
|
|
|
.. zeek:field:: desktop_height :zeek:type:`count` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
Desktop height of the client machine.
|
|
|
|
|
|
.. zeek:field:: requested_color_depth :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
The color depth requested by the client in
|
|
the high_color_depth field.
|
|
|
|
|
|
.. zeek:field:: cert_type :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
If the connection is being encrypted with native
|
|
RDP encryption, this is the type of cert
|
|
being used.
|
|
|
|
|
|
.. zeek:field:: cert_count :zeek:type:`count` :zeek:attr:`&log` :zeek:attr:`&default` = ``0`` :zeek:attr:`&optional`
|
|
|
|
The number of certs seen. X.509 can transfer an
|
|
entire certificate chain.
|
|
|
|
|
|
.. zeek:field:: cert_permanent :zeek:type:`bool` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
Indicates if the provided certificate or certificate
|
|
chain is permanent or temporary.
|
|
|
|
|
|
.. zeek:field:: encryption_level :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
Encryption level of the connection.
|
|
|
|
|
|
.. zeek:field:: encryption_method :zeek:type:`string` :zeek:attr:`&log` :zeek:attr:`&optional`
|
|
|
|
Encryption method of the connection.
|
|
|
|
|
|
.. zeek:field:: analyzer_id :zeek:type:`count` :zeek:attr:`&optional`
|
|
|
|
The analyzer ID used for the analyzer instance attached
|
|
to each connection. It is not used for logging since it's a
|
|
meaningless arbitrary number.
|
|
|
|
|
|
.. zeek:field:: done :zeek:type:`bool` :zeek:attr:`&default` = ``F`` :zeek:attr:`&optional`
|
|
|
|
Track status of logging RDP connections.
|
|
|
|
|
|
.. zeek:field:: ssl :zeek:type:`bool` :zeek:attr:`&log` :zeek:attr:`&default` = ``F`` :zeek:attr:`&optional`
|
|
|
|
(present if :doc:`/scripts/policy/protocols/rdp/indicate_ssl.zeek` is loaded)
|
|
|
|
Flag the connection if it was seen over SSL.
|
|
|
|
|
|
|
|
Events
|
|
######
|
|
.. zeek:id:: RDP::log_rdp
|
|
:source-code: base/protocols/rdp/main.zeek 75 75
|
|
|
|
:Type: :zeek:type:`event` (rec: :zeek:type:`RDP::Info`)
|
|
|
|
Event that can be handled to access the rdp record as it is sent on
|
|
to the logging framework.
|
|
|
|
Hooks
|
|
#####
|
|
.. zeek:id:: RDP::finalize_rdp
|
|
:source-code: base/protocols/rdp/main.zeek 296 303
|
|
|
|
:Type: :zeek:type:`Conn::RemovalHook`
|
|
|
|
RDP finalization hook. Remaining RDP info may get logged when it's called.
|
|
|
|
.. zeek:id:: RDP::log_policy
|
|
:source-code: base/protocols/rdp/main.zeek 11 11
|
|
|
|
:Type: :zeek:type:`Log::PolicyHook`
|
|
|
|
|
|
|