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Security Information Event Management - nullhyd
SIEM systems provide security event monitoring and log management by collecting security data from across an organization's network and systems. The first SIEM was developed in 1996 and major players today include IBM QRadar, HP ArcSight, and McAfee Nitro. SIEMs aggregate logs from various sources, use correlation engines to identify related security events, and generate alerts when multiple events indicate a higher risk threat. They provide visibility across an organization's security infrastructure and help with compliance, operations, and forensic investigations. SIEM is important for threat detection, compliance, and gaining insights from security event data.
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Security Information Event Management - nullhyd
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- 2. Brief history ofSIEM!!! 1996 – Birth of SIEM 2000 – SIEM winner: ArcSight launches Big players in the market ArcSight-HP QRadar-IBM Nitro-McAfee SecureVue–EiQ Splunk, RSA envision and so on….
- 3. What is aSIEM?? SIEM - Security Information Event Management Logging and Event Aggregation Network (Routers, Switches, Firewall ,etc.) System (Server ,workstation ,etc.) Application (Web, DB, etc.) Correlation Engine 2+ related events = higher alarm
- 4. SIEM Advantages Correlationof data from multiple systems Prioritization based on risk of threat to assets Alerting and monitoring on events of interest to escalate priority Monitor and log the access and use of sensitive data Limits exposure to breach Allows organizations to demonstrate adherence to polices and controls
- 5. Present world !!! Attackers are more sophisticated in their attacks. Defenders need systems which help provide visibility and altering across numerous security systems. SIEM adoption driven by compliance Gartner says “more than 80%” Put “Security” back into SIEM using real world examples.
- 6. 5 reasons whySIEM is important… Compliance Operations Support Zero-day & APT Forensics
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- 8. What does itdo Directory Policy File Policy Registry Policy USB Policy
- 9. SIEM – It’susage How is SIEM helpful in the following Security concerns?? Countermeasures to detect attempts to infect internal system Identification of infected systems Mitigation of risk for infected systems Detection of outbound sensitive information ( DLP)
- 10. "Sep 01 201501:52:37: %ASA-4-402119: IPSEC: Received an ESP packet (SPI= 0x8C623E78, sequence number= 0x193D) from xxx.xxx.xxx.xxx (user= ezvpn2) to xxx.xxx.xxx.xxx that failed anti-replay checking. " uid=asa1.int.xnxx.edu ip=10.1.9.55 extip=10.1.9.55 sev=local6.warn ec=402119 et=3 sip= xxx.xxx.xxx.xxx dip=xxx.xxx.xxx.xxx npri=4 dir=1 sgrp=Extranet dgrp=Extranet proto=IPSEC act=1 family=Others user=ezvpn2 cnt=1 msg="Invalid sequence number in the recvd. IPSEC packet." seq=0x193D ecat=System ecatsubcat=Error ecatresult=Attemp RAW log Parsed logRAW log
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