lever
Host Based Systems Analyst II
Arsiem
Arlington, USA
Full-time
Mid · 5+ years experience
Onsite
Discovered 1 weeks ago
SnortArcsightSiLKNetwork+Security+Python
Free
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SnortArcsightSiLKNetwork+Security+Python
Full Job Posting
- The Computer Network Defense Analyst uses information collected from a variety of sources to monitor network activity and analyze it for evidence of suspicious behavior. Monitoring and analysis are performed to identify and report events that occur, or might occur, within the network, in order to protect information, information systems, and networks from threats. CNDAs review data collected to analyze cyber events, and the network environment, to find trends, patterns or anomaly correlations that indicate more serious attacks or future threats. The CNDAs will recommend proactive measures to contain the incident. These proactive measurers include, but are not limited to, identification of intruder local changes/suspect interactions, isolation, in-depth digital media analysis, consultation with law enforcement or counterintelligence organizations, development of signatures to detect this malicious behavior and development and deployment of eradication tools.
- The majority of the CNDA’s time (75%) will be spent executing the following tasks:
- Characterize and analyze network traffic to identify anomalous activity and potential threats to network resources
- Coordinate with enterprise-wide cyber defense staff to validate network alerts
- Document and escalate incidents (including event's history, status, and potential impact for further action) that may cause ongoing and immediate impact to the environment
- Perform cyber defense trend analysis and reporting
- Perform event correlation using information gathered from a variety of sources within the enterprise to gain situational awareness and determine the effectiveness of an observed attack
- Provide daily summary reports of network events and activity relevant to cyber defense practices
- Receive and analyze network alerts from various sources within the enterprise and determine possible causes of alerts
- Provide timely detection, identification, and alerting of possible attacks/intrusions, anomalous activities, and misuse activities and distinguish these incidents and events from benign activities
- Use cyber defense tools for continual monitoring and analysis of system activity to identify malicious activity
- Analyze identified malicious activity to determine weaknesses exploited, exploitation methods, effects on system and information
- Determine tactics, techniques, and procedures (TTPs) for intrusion sets
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