Withdraw mesage source

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Withdraw mesage source

L1 Bithead

Hi everyone,


I am currently working on connecting MineMeld with our SIEM solution. I however ran into a question.


When receiving an update message it states which sources the IOC originated from, also if there are multiple. example: (binarydefense and badips)




However all withdraw messages I receive do not include this field.

Question: are withdraw messages generated when the IOC is removed rom ALL sources or is a messages generated for each source individually?






L7 Applicator

Hi @Forseti,

WITHDRAW messages have no body and an aggregator generates a withdraw for an indicator only when all the Miners have withdrawn the indicator.


Longer explanation:


Let's suppose you have a graph with 2 Miners M1 and M2, connected to an aggregator A, and A is connected to a single output node O. This is how WITHDRAWs work:

  1. suppose that in the initial state both M1 and M2 have published an indicator I. M1 published I with a set of attributes AM1. M2 published I with a set of attributes AM2. Aggregator A then has published to O the indicator I with a set of attributes (AM1+AM2).
  2. Miner M1 expires indicator I (expiration of indicators depends on the age out configuration in each single Miner, i.e. each Miner can apply a different age out policy) and sends a WITHDRAW of indicator I to aggregator A.
  3. Aggregator A generates an UPDATE message to output O for indicator I with a set of attributes AM2, as AM1 have been removed.
  4. Miner M2 expires indicator I (according to its own age out policy) and sends a WITHDRAW of indicator I to aggregator A.
  5. Aggregator A at this point should remove indicator I because all the original Miners sources of I have withdrawn the indicator. Aggregator A then generates a WITHDRAW message for indicator I to output O.



Hope this helps.



Perfect answer! Just what I needed to know! Thank you @Imori
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