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For commercial SIEMs, correlation rules and threat signatures are available from some communities (CERTs and others) or from some commercial offers. What about ELK based SIEMs? Where can I find off-the_shelf correlation rules for a "standard" information system (either community or commercial ones)? How do they compare?

Alternativey if a correlation engine is required on top of ELK, same question for open source correlation engines like CorReactive, Esper or Drools?

Our context is a multi-location software development company, 10k people. In our Information System, we have firewalls, VPN, proxies, AD, email, PKI, application servers, infrastructure services, windows and Linux servers and workstations

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In particular, MineMeld Open-source Threat Intelligence processing framework by Palo Alto Networks is supported by the ELK based OpenSource SIEM solution SIEMONSTER - I have not yet tested them.

  • We have abandoned the SIEMonster solution due to the lack of sales contact. Many messages and phone calls without answers. And we have abandonned also ELK for lack of off-the-shelf viable SIEM solution – lalebarde Jul 18 '18 at 21:14

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