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A library for defining and creating structured data (called records) that can be streamed to disk or piped to other tools that use flow.record.

Records can be read and transformed to other formats by using output adapters, such as CSV and JSON.


flow.record is available on PyPI.

$ pip install flow.record


This library contains the tool rdump. With rdump you can read, write, interact, and manipulate records from stdin or from record files saved on disk. Please refer to rdump -h or to the rdump documentation for all parameters.

Records are the primary output type when using the various functions of target-query. The following command shows how to pipe record output from target-query to rdump:

$ target-query -f runkeys targets/EXAMPLE.vmx | rdump
<windows/registry/run hostname='EXAMPLE' domain='EXAMPLE.local' ts=2022-12-09 12:06:20.037806+00:00 name='OneDriveSetup' path='C:/Windows/SysWOW64/OneDriveSetup.exe /thfirstsetup' key='HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Run' hive_filepath='C:\\Windows/ServiceProfiles/LocalService/ntuser.dat' username='LocalService' user_sid='S-1-5-19' user_home='%systemroot%\\ServiceProfiles\\LocalService'>

Programming example

Define a RecordDescriptor (schema) and then create a few records and write them to disk

from flow.record import RecordDescriptor, RecordWriter

# define our descriptor
MyRecord = RecordDescriptor("my/record", [
    ("net.ipaddress", "ip"),
    ("string", "description"),

# define some records
records = [
    MyRecord("", "cloudflare dns"),
    MyRecord("", "google dns"),

# write the records to disk
with RecordWriter("output.records.gz") as writer:
    for record in records:

The records can then be read from disk using the rdump tool or by instantiating a RecordReader when using the library.

$ rdump output.records.gz
<my/record ip=net.ipaddress('') description='cloudflare dns'>
<my/record ip=net.ipaddress('') description='google dns'>


We can also use selectors for filtering and selecting records using a query (Python like syntax), e.g.:

$ rdump output.records.gz -s '"google" in r.description'
<my/record ip=net.ipaddress('') description='google dns'>

$ rdump output.records.gz -s 'r.ip in net.ipnetwork("")'
<my/record ip=net.ipaddress('') description='cloudflare dns'>


For more details, please refer to the API documentation of flow.record.