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License: Apache 2.0 PRs not allowed

Tenable.ad IOA event logs listener

Tenable.ad IOA event logs listener, developed in Rust, is part of the Tenable.ad IOA module. It listens to event logs coming from channels declared in TenableADEventsListenerConfiguration.json configuration file, and filters those with declared event identifiers and provider names. The listener uses EvtSubscribe Windows API for this purpose.

The listener buffers event logs during time intervals and writes them to a file regularly. The file can be compressed or not.

Event logs listener GPO

The listener also lowers impacts on the side of the domain controllers with the help of specific mechanisms (explicit CPU/RAM limitations, throttling, etc).

Event logs listener running

Build

cargo build --release

Run

.\\Register-TenableADEventsListener.exe -t 15 -p 'C:\file.gz' -g

Help

.\\Register-TenableADEventsListener.exe -h

Arguments

The following command launches an event listener, which forwards each received event to an internal memory buffer. The listener flushed its buffer to the disk periodically.

USAGE:

    Register-TenableADEventsListener.exe [OPTIONS] --EventLogFilePath <EVENT_LOG_FILE_PATH> --TimerDurationSeconds <TIMER_DURATION_SECONDS>

OPTIONS:

    -b, --MaxBufferSizeBytes <MAX_BUFFER_SIZE_BYTES>
            The maximum buffer size in bytes [default: 524288000]

    -d, --DurationLeapMilliSeconds <DURATION_LEAP>
            The duration leap to adjust events logs consumption throughput, in milliseconds
            [default: 10]

    -g, --EnableGzip
            Whether GZip compression is enabled

    -h, --help
            Print help information

    -p, --EventLogFilePath <EVENT_LOG_FILE_PATH>
            The file where events are written

    -r, --CpuRate <CPU_RATE>
            Control the CPU rate of the process (does not work on Windows Sever 2008R2 and below)
            [default: 20]

    -s, --MaxThroughput <MAX_THROUGHPUT>
            The maximum handled throughput, in event logs per second [default: 1500]

    -t, --TimerDurationSeconds <TIMER_DURATION_SECONDS>
            The interval between each file write

    -w, --Preview
            Enable preview features

Contribution

Tenable does not allow any public contribution. You can report issues to Tenable by reaching out to your support contact.

License

The project is licensed under Apache 2.0