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kjjoyal
Level 7
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Message 1 of 5

Custom Alarm ESM 10.4.0

Hi,

I am trying to setup a custom alarm for DOS attacks, as we do not have any devices that support flows so the DOS content pack doesnt work for it. 

I have configured an alarm to for a signature ID  a count of 1000 and an elapsed timeframe of 60(which Im assuming is 60 seconds?).

I cannot get this rule to fire, any help would be appreciated.

Thanks,

KJoyaldos alarm.jpg

4 Replies
SSSSYYYY
Level 10
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Message 2 of 5

Re: Custom Alarm ESM 10.4.0

Remove the last two conditions, and try to add a threshold via the 3 dots in front of the AND operator, define number of events and time period.

kjjoyal
Level 7
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Message 3 of 5

Re: Custom Alarm ESM 10.4.0

The only thing I can do with the with the 3 dots in front of the AND is change it to a OR statement. 

 

SSSSYYYY
Level 10
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Message 4 of 5

Re: Custom Alarm ESM 10.4.0

that's strange. Do you not have Threshold and Time Window option when you edit logical element? Maybe you are on alarm, can you create a correlation rule instead?

David1111
Reliable Contributor
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Message 5 of 5

Re: Custom Alarm ESM 10.4.0

Hi.

1- sssyyyy is right. your in the FIeld MATCH GUI in the Alarm section

you need to add a correlation for that, there you could set the time fram ETC just by clicking on the "AND" gate.

regarding the signature ID you added, what is the rule name of that signature?

maybe there is the problom.

 

Best Regards👍👍👍

David

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