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Hazvinei Nomatter Masiya

Cybersecurity Professional Β· Security Operations Β· Detection Engineering Β· Incident Response Β· Automation
12+ Years Enterprise IT | CompTIA Security+ Certified (SY0-701) | Evidence-First Security Operations
πŸ“ Harare, Zimbabwe πŸ“§ Contact via LinkedIn

CompTIA Security+ Certified (SY0-701) cybersecurity professional with 12+ years of enterprise IT experience across infrastructure, systems administration, Windows/Linux, Active Directory, networking, access control and endpoint security. I apply that operational foundation to security operations, detection engineering, incident response and DFIR through evidence-backed, authorized technical work.

Flagship Security Labs

Five evidence-driven defensive case studies covering malware triage, phishing/BEC, modern identity security, ransomware response and AI-assisted SOC operations. Published evidence uses synthetic, safe training artifacts.

SYNTHETIC

Malware Analysis & Triage

Static triage, IOC extraction, YARA, ATT&CK mapping and SOC investigation reporting.

SYNTHETIC

Phishing & BEC

Email headers, SPF/DKIM/DMARC, IOC analysis, identity impact and incident response.

SYNTHETIC

Identity / Entra ID

Identity anomaly detection, OAuth consent, privilege changes and Sentinel/KQL-style analytics.

SIMULATED

Ransomware Detection & Response

Endpoint telemetry, Wazuh/Sysmon-style detection, containment, evidence preservation and recovery.

AI SECURITY

AI Security / AI-Assisted SOC

Prompt-injection risks, sensitive-data controls, MITRE ATLAS and human-in-the-loop SOC triage.

LOCAL AI SECURITY LAB

AI Cybersecurity & Governance

A local Ollama lab covering eight synthetic prompt-injection scenarios, baseline and defended configurations, privacy-conscious event logging, application-log detection, threat modelling and AI governance artefacts.

1 November 2026 live test: five complete runs (80 cases) using the local llama3.2 default 3B tag. The A2 baseline synthetic-canary detection occurred in 5/5 runs; defended A2 had no exact-canary detection, with the input filter intercepting it in 5/5.

Evidence limits: one local model, synthetic scenarios, exact-canary matching, and a 64-token output cap. A1 and A4 were also intercepted, although the baseline model refused those requests itself. This is a learning lab, not a production assurance assessment.

Evidence Hubs

Focused entry points for recruiters and technical reviewers. Each hub links directly to source evidence in the repository and preserves the portfolio's evidence-scope standard.

Technical Projects & Artifacts

Attack Simulation & Detection Engineering Lab

Live Lab Evidence
🎯 6 of 6 Technique/Platform Combinations β€” Live Validation on Self-Owned Lab Targets

3 real MITRE ATT&CK techniques (Execution T1059, Persistence T1053/T1547, Credential Access T1003), each written to run against 2 real, self-owned targets: the home-lab Linux host and the Azure Windows Server DC documented elsewhere in this portfolio. All 6 technique/platform combinations have preserved live-alert evidence from authorized tests against self-owned Linux and Windows lab targets. The evidence is lab validation, not client or production infrastructure.

MITRE ATT&CK Wazuh Detection Engineering

Azure Windows Server Security Lab

Observed Evidence
πŸ”’ RDP Locked to a Single Admin IP β€” No Open Ingress

Terraform-provisioned Windows Server 2022 VM in Azure with a default-deny NSG, no committed secrets, and daily auto-shutdown for cost control. Deployed, promoted to an AD Domain Controller (lab.local), hardened, and validated end-to-end: 409 real Security events exported and analyzed for 392 findings, plus a live Wazuh Agent connection generating real MITRE-mapped alerts.

Admin IP NSG (3389) Win Server DC
Terraform Azure Active Directory PowerShell

Windows Sysmon Telemetry Engineering

Observed Evidence
πŸ‘οΈ Real Sysmon Telemetry: 16 Events, 5 Findings

Installed Sysmon (SwiftOnSecurity config) on a live, deployed Azure Domain Controller and captured real process-create (Event ID 1) and network-connect (Event ID 3) telemetry, validated against the same detection logic used on synthetic data.

ARTIFACT // SYSMON_CONFIG.XML
MITRE T1055
<ProcessAccess onmatch="include"> <TargetImage condition="is">C:\Windows\System32\lsass.exe</TargetImage> </ProcessAccess>
Sysmon Threat Hunting Endpoint Defense

Linux Incident Response & DFIR

Observed Evidence
🎯 Reconstructed Attack Timeline from Linux System Logs

Executed deep forensic triage on compromised Linux system logs. Verified SHA-256 evidence hashes, mapped actor techniques to MITRE ATT&CK, and produced post-incident timelines.

ARTIFACT // AUTH.LOG_ANALYSIS
MITRE T1078
# sha256sum DFIR/Linux-Forensics/Evidence/auth.log f5d18ad19f1341cef5b2c3dd6c55504df5936e2adcc73f8a6fefbcdfca3caf87 [+] Synthetic lab evidence: repeated failed SSH attempts from 10.10.20.45; successful analyst login from 10.10.20.10; subsequent sudo activity
Linux DFIR Syslog Audit MITRE ATT&CK

Container Configuration Security Audit

Observed Evidence
🐳 14 Findings Across 8 Real Running Containers

CIS Docker Benchmark / MITRE ATT&CK for Containers-style Python audit engine (root user, unpinned tags, hardcoded secrets, privileged mode, docker.sock mounts, host network mode), validated first against synthetic fixtures, then run for real against a home-lab Docker host via a docker inspect-based collector that redacts every env value before it touches disk.

8 Containers CIS Checks 14
Docker Security CIS Benchmark MITRE ATT&CK

Nmap Network Reconnaissance

Observed Evidence
πŸ”Ž 13 Open Ports Found on a Full 65535-Port Scan

Full TCP port range scan (-sV -sC -p-) against the analyst's own home-lab host, with raw output preserved in all three Nmap formats. An unrecognized service fingerprint on port 9443 was independently verified with curl/ss rather than assumed, revealing Portainer exposed on every network interface instead of scoped like the stack's other services.

65535 Ports -sV -sC 13
Nmap Network Recon T1046

Wireshark Packet Analysis

Observed Evidence
πŸ•΅οΈ Real SQLi Test Captured and Correctly Flagged

Real tcpdump capture (52 packets) of the analyst's own Juice Shop container, including a genuine test of its known SQL-injection-vulnerable search endpoint. Analyzed with this portfolio's existing pcap_soc_analyzer.py, previously validated only against synthetic data - it correctly flagged the real SQLi request (HIGH) while correctly declining to flag a weaker scanner-UA signal alone.

52 Packets SOC Analyzer 1
Wireshark/TShark Packet Analysis SOC Triage

Linux Host Hardening Audit

Observed Evidence
🐧 0 Findings β€” All 26 SUID Binaries Individually Verified

CIS-benchmark-style Python audit engine (SSH config, sudoers NOPASSWD scope, SUID binaries, world-writable files, legacy services, firewall state), validated first against synthetic fixtures, then run for real against a live personal Linux host via a purpose-built collector script.

Real Host CIS Checks 0
Linux Hardening CIS Benchmark Python

Static Application Security Testing

Observed Evidence
πŸ” Real Scan, Real Fix, Honest Triage

Real bandit static analysis scan of this portfolio's own 1,278-line Python codebase - not a fictional target. Found and fixed one genuine High-severity issue (unnecessary shell=True command execution). Remaining findings triaged honestly: one confirmed scanner false positive, one documented defense-in-depth recommendation, and low-risk findings reviewed and accepted rather than blindly cleared.

Bandit SAST Secure Code Review

PCAP Traffic & Triage Automation

Synthetic Lab
⚑ Automated PCAP Traffic Analysis

Captured packet traffic using tshark to analyze automated web scans, SQL injection payloads, and command execution attempts. Engineered custom Python scripts for automated triage.

ARTIFACT // PCAP_PARSER.PY
MITRE T1190
$ python3 pcap_triage.py --file capture.pcap [+] Extracting HTTP POST payloads... [!] ALERT: SQLi Payload Detected: ' OR 1=1 -- [!] Source IP: 192.168.1.105 -> Targeted Port: 8080
Wireshark/Tshark Python Network Forensics

Wazuh SIEM Rules & FIM Lab

Synthetic Lab
πŸ›‘οΈ Custom Wazuh Rules Validated Against Test Events

Deployed Wazuh agents across lab nodes. Authored custom XML detection rules to flag privilege escalation and established File Integrity Monitoring (FIM) for system directories.

ARTIFACT // WAZUH_LOCAL_RULES.XML
MITRE T1548
<rule id="100002" level="10"> <if_sid>5715</if_sid> <match>sudo: privilege escalation</match> <description>Possible privilege escalation alert</description> </rule>
Wazuh SIEM XML Rules FIM

Splunk SOC Lab Track

Synthetic Lab
πŸ“Š Six Connected SOC Labs Β· SPL Detection & Investigation

Completed a six-lab Splunk SOC track covering SSH authentication hunting, Windows/Sysmon process investigation, web-attack investigation, SPL detection engineering, SOC monitoring/dashboarding, and end-to-end incident investigation using controlled synthetic telemetry.

Splunk SPL SOC Investigation Detection Engineering

AD Security Event Automation

Observed Evidence
πŸ” Automated Parsing of Event 4728 & 4625 XML Security Logs

Automated parsing of Windows Security XML event logs (4624, 4625, 4728) using Python to highlight lateral movement, brute force attempts, and unauthorized group escalation.

ARTIFACT // AD_PARSER.PY
MITRE T1098
$ python3 ad_triage.py --event 4728 [!] PRIVILEGE ESCALATION DETECTED User 'jdoe' added target 'Domain Admins' Caller User: 'bad_actor_admin'
Active Directory Python Automation Windows Security

GCP Secure Landing Zone

IaC / DESIGN
πŸ”’ Org-Wide External-IP Deny + Deny-All-Ingress VPC β€” IaC

Real Terraform for a GCP organization landing zone: org-level policy guardrails (no external IPs, no SA key files, domain-restricted IAM), an environment folder structure, a Shared VPC host project with deny-all-ingress firewall rules and Cloud NAT, and a centralized org-wide logging sink. Formatting-checked with terraform fmt; full validate/apply pending a real org (this build environment can't reach the Terraform registry).

Org Policy Shared VPC Org Logging
GCP Terraform Landing Zone

Virtual Job Simulations

Practical cybersecurity simulations completed through Forage. These are virtual work experiences, not employment, and are presented as evidence of applied learning and professional skills.

Forage β€’ Virtual Experience

Mastercard β€” Cybersecurity

Security-awareness simulation covering phishing simulation design, campaign analysis and targeted security-awareness training.

Phishing AnalysisSecurity AwarenessData AnalysisSecurity Training
Forage β€’ Virtual Experience

Datacom β€” Cyber Security Operations

Cyberattack investigation and cybersecurity risk assessment covering ransomware response, OSINT, risk prioritization and security recommendations.

Incident ResponseRisk AssessmentOSINTMITRE ATT&CK
Forage β€’ Virtual Experience

Deloitte Australia β€” Cyber

Web activity-log investigation focused on suspicious automated API activity, authentication/session behaviour, networking and web security.

Log AnalysisWeb SecurityNetworkingIncident Investigation
Forage β€’ Virtual Experience

AIG Shields Up β€” Cybersecurity

Threat analysis simulation covering CISA advisory research, vulnerability identification, remediation communication and a controlled ransomware-recovery exercise.

Threat AnalysisVulnerability ResearchIncident ResponsePython
Evidence note

These are controlled Forage virtual job simulations / virtual experience programs. They are not employment with the participating companies or real-world client engagements.

Public GitHub Projects

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Core Competencies

SIEM & Detection

  • Wazuh & Splunk/SPL Detection
  • Sysmon XML Rules
  • Log Triage Automation
  • File Integrity Monitoring
  • Custom Alert Pipelines

DFIR & Hunting

  • Linux Auth/Syslog Forensics
  • PCAP Packet Triage
  • Hash & Integrity Audits
  • MITRE Framework Mapping

Infrastructure

  • Active Directory & GPO
  • Dell Versa SD-WAN
  • Sophos XG & Endpoint
  • Windows Server Admin

Engineering

  • Python IOC Parsers
  • Terraform (GCP & Azure) IaC
  • Bash & PowerShell Scripts
  • Cloud VPC Isolation

Certifications & Education

SY0-701

CompTIA Security+ Certified (SY0-701)

Core Security Standards

Verify Certification β†’ View Security+ CE Badge β†’
Google Professional

Google IT Support

Systems & Networking

View & Verify Badge β†’
Unicaf University

BSc Computer Science (In Progress)

Undergraduate Degree

Columbia+

Columbia+ Digital Badge

View the original badge page for credential details.

View & Verify Badge β†’
Dual Credential

Google Cybersecurity Certificate & CompTIA Security+ Dual Credential

Combined Google Cybersecurity Certificate and CompTIA Security+ exam achievement.

View & Verify Badge β†’
IBM SkillsBuild

Artificial Intelligence Fundamentals

AI concepts, ethics, applications and introductory IBM Watson Studio awareness.

Verify IBM AI Fundamentals Badge β†—
Cisco Networking Academy

Junior Cybersecurity Analyst Career Path

Network monitoring and protection, security alerts, vulnerability assessment and incident response foundations.

View & Verify Badge β†’

Get In Touch

Targeting SOC Analyst, Security Operations Analyst, Cybersecurity Analyst, Detection Engineering, Threat Hunting, and Security Engineering opportunities.

Recent Evidence Validation

Four previously pending evidence tracks now have retained controlled/offline validation artifacts. These exercises use synthetic or offline data and do not represent production incidents or live customer environments.

CLOUD β€” OFFLINE VALIDATION IOC β€” CONTROLLED / SYNTHETIC PHISHING β€” CONTROLLED / SYNTHETIC SOC AUTOMATION β€” CONTROLLED / SYNTHETIC

Evidence Standard

This portfolio uses one evidence standard across the website and the underlying GitHub case studies. Project claims are tied to retained evidence and are explicitly classified so laboratory work is never presented as production incident experience.

LIVE / REAL LAB CONTROLLED / SYNTHETIC OFFLINE VALIDATION ARCHITECTURE / METHODOLOGY PENDING VALIDATION VIRTUAL EXPERIENCE

Each evidence-bearing case study follows the permanent 20-section framework covering scenario, scope, methodology, commands/scripts, evidence, observations, analysis, findings, risk, recommendations, detection opportunities, ATT&CK mapping where justified, lessons learned, skills, SOC relevance, limitations, and references.