Cyber Network Defense Analysts (CNDA) with Security ...

Zeno Associates provides remote and onsite advanced technical assistance, proactive hunting, rapid onsite incident response, and immediate investigation and resolution using host-based, network-based, and cloud-based cybersecurity analysis capabilities. Team personnel provide a front-line response for digital forensics/incident response (DFIR) and proactively hunt for malicious cyber activity. We are seeking Cyber Network Defense Analysts (CNDA) to support this critical customer mission. Responsibilities:- Assists the Government lead in coordinating teams in preliminary incident response investigations- Assists the Government lead with interfacing with the customer while on site- Perform management duties as required to support the team, projects, and analysts- Determines appropriate courses of action in response to identified and analyses anomalous network activity- Assesses network topology and device configurations identifying critical security concerns and providing security best practice recommendations- Assists with the writing and publishing of Computer Network Defense guidance and reports on incident findings to appropriate constituencies- Collects network intrusion artifacts (e.g., PCAP, domains, URIs, certificates, etc.) and uses discovered data to enable mitigation of potential Computer Network Defense incidents- Analyzes identified malicious network activity to determine weaknesses exploited, exploitation methods, effects on system and information- Collects network device integrity data and analyzes for signs of tampering or compromise- Assists with real-time CND incident handling (i.e., forensic collections, intrusion correlation and tracking, threat analysis, and advising on system remediation) tasks to support onsite engagements Required Skills:- U.S. Citizenship- Must have an active TS/SCI clearance- Ability to obtain Department of Homeland Security (DHS) Entry on Duty (EOD) Suitability- 8+ years of directly relevant experience in network investigations- In depth knowledge of CND policies, procedures and regulations- In depth knowledge of TCP/IP protocols- In depth knowledge of standard protocols - ICMP, HTTP/S, DNS, SSH, SMTP, SMB, NFS, etc. - In depth knowledge and experience of Wifi networking - In depth knowledge and experience of network topologies - DMZs, WANs, etc.- Substantial knowledge of Splunk (or other SIEMs)- Understanding of MITRE Adversary Tactics, Techniques, and Common Knowledge (ATT&CK)- Knowledge of Computer Network Defense policies, procedures, and regulations- Knowledge of defense-in-depth principles and general attack stages concerning network security architecture- Ability to characterize and analyze network traffic to identify anomalous activity and potential threats to network resources- Ability to identify and analyze anomalies in network traffic using metadata- Experience with reconstructing a malicious attack or activity based on network traffic- Experience examining network topologies to understand data flow through the network- Must be able to work collaboratively across physical locations Desired Skills:- Substantial knowledge of network device integrity concepts and methodologies- Proficiency with network analysis software (e.g., Wireshark) - Proficiency in carving and extracting information from PCAP data - Proficiency with non-traditional network traffic (e.g., Command and Control) - Proficiency in preserving evidence integrity according to standard operating procedures or national standards Required Education:BS Computer Science, Cyber Security, Computer Engineering, or related degree; or HS Diploma & 10 years of network investigations experience. Desired Certifications:- One or more of the following professional certifications: GNFA, GCIH, GCIA, GSEC, CASP+, CySA+, PaLMS, FedVTE- GSEC (SANS401), Arcsight (or other SEIM solution), Network+, Security+

Created: 2025-10-04