Blue Team · DFIR · Detection · AI Security

Dennis Kontic Cybersecurity Lab Portfolio

Welcome to my cybersecurity project portfolio. This site highlights hands on technical work across SOC analysis, digital forensics, incident response, malware analysis, detection engineering, vulnerability management, endpoint security, and AI security.

My goal is to show practical cybersecurity skills beyond certifications by documenting how I investigate alerts, reconstruct attacks, analyze evidence, map activity to MITRE ATT&CK, evaluate security controls, and communicate findings clearly.

Blue Team SOC investigations, incident response, and threat hunting.
  • SOC analysis
  • Incident response
  • Threat hunting
DFIR Windows artifacts, memory analysis, network forensics, and malware triage.
  • Digital forensics
  • Memory analysis
  • Malware analysis
Detection Engineering MITRE mapping, alert logic, SIEM workflows, and defensive gap analysis.
  • Detection logic
  • SIEM investigation
  • ATT&CK coverage
AI & Endpoint Security AI application security concepts, EDR analysis, vulnerability management, and endpoint defense.
  • AI security testing
  • Endpoint investigation
  • Vulnerability management

About This Portfolio

This portfolio is designed to give recruiters, hiring managers, and security professionals a clear view of my practical cybersecurity work. Each project focuses on how I approach evidence, analyze attacker behavior, document findings, and connect technical activity to defensive security outcomes.

The main purpose of this site is to show how I think as a security analyst. Instead of only listing certifications, this portfolio shows investigations, case notes, detection logic, forensic analysis, threat intelligence research, AI security study, and technical walkthroughs that demonstrate applied skill.

Professional Security Work — Sanitized Overview

Employer security work often depends on production logs, endpoint data, internal tooling, and sensitive user or business information. To protect that data, this section explains the security responsibilities and investigation concepts I work with without publishing raw employer artifacts.

Current Role Endpoint Security Vulnerability Management

CarShield — Security Responsibilities Within Level 1 IT Technician Role

My current responsibilities have expanded beyond traditional support into practical security operations.

  • Vulnerability management: perform endpoint vulnerability scans across systems supporting three affiliated companies, document findings, and communicate remediation needs.
  • EDR investigation: triage and investigate SentinelOne alerts involving malicious endpoint activity, phishing, and vulnerability related events, validate context, document findings, and escalate higher risk activity.
  • Identity and privileged access: support user lifecycle administration, permissions, MFA, Microsoft Entra PIM, and least privilege access controls.
  • Analyst thinking: evaluate process and command context, user activity, hashes, affected systems, and available endpoint evidence before determining whether activity requires escalation.
No production screenshots, endpoint names, IP addresses, internal detection logic, customer data, employee data, or raw CarShield logs are published here.
Security Internship SOC Detection Engineering

Ascend Learning — Security Operations & Detection Engineering

My Information Security internship provided hands on experience across SOC investigation, phishing analysis, alert tuning, and threat informed detection work.

  • SIEM operations: triaged and investigated 10+ security alerts daily, classified events by severity, documented findings, and escalated verified high risk incidents.
  • Phishing and malware analysis: investigated suspicious emails and malicious attachments using ANY.RUN and VirusTotal.
  • Detection quality: identified false positive tuning opportunities to reduce alert fatigue and improve analyst efficiency.
  • Detection engineering: mapped organizational telemetry to MITRE ATT&CK and developed detection logic across multiple security tools.
View the sanitized MITRE ATT&CK detection engineering project
Only sanitized, non confidential details are included. Internal production data, proprietary detections, credentials, and sensitive organizational information are excluded.

All Technical Projects

These projects document hands on defensive security work across authorized lab environments, public training platforms, personal research, and sanitized professional experience.

AI SecurityHTB Academy

HTB AI Security Lab Series

Public Academy study series covering prompt injection, AI data attacks, LLM output attacks, adversarial evasion, AI privacy, AI defense, and AI application security concepts.

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DFIRWindows Logs

Deep Blue Investigation

Windows event log investigation involving suspicious process execution, Meterpreter style activity, service creation, and local account persistence.

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Certification LabHTB CDSA

HTB CDSA Enterprise Intrusion Analysis

Hands on defensive security certification project focused on enterprise intrusion analysis, incident response, evidence correlation, and professional reporting.

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Certification LabBTL1

Blue Team Level 1 BTL1

Blue team certification lab covering phishing analysis, SIEM investigations, digital forensics, incident response, threat intelligence, and defensive reporting.

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Certification LabCCDL1

CCDL1 SOC Analyst Certification

SOC analyst certification lab covering alert triage, cloud log review, AWS log analysis, threat detection, incident workflow, and investigation reporting.

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Certification LabSAL1

TryHackMe SAL1 Security Analyst

Security analyst certification project focused on SOC workflows, alert investigation, defensive operations, security tooling, and practical analyst decision making.

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Certification LabCEHv13

CEHv13 Academia ELITE Labs

Hands on security lab bundle covering reconnaissance, enumeration, web application testing, cloud security, cryptography, malware concepts, and security tooling.

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BECAzure Logs

BEC KY Investigation

Business Email Compromise investigation using Azure audit logs, email exports, suspicious inbox rules, and financial fraud indicators.

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MalwareANY.RUN

Oski Stealc Malware Analysis

Sandbox and threat intelligence analysis of Stealc malware behavior, credential theft, configuration details, and MITRE ATT&CK mapping.

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TabletopIncident Response

APT34 OilRig Tabletop Exercise

Incident response simulation focused on unauthorized email access, lateral movement, containment, recovery, and response decision making.

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TabletopAPT29

APT29 Cozy Bear Tabletop Exercise

Incident response simulation involving unauthorized access, data exfiltration concerns, containment, escalation, and recovery planning.

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TabletopCloud

UNC3944 Scattered Spider Tabletop Exercise

Data theft tabletop exercise involving administrator misuse, cloud activity, Linux and Mac systems, containment, and team communication.

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Threat IntelCrypto Theft

Tusk InfoStealer Threat Intelligence Lab

Threat intelligence investigation involving InfoStealer activity, malicious infrastructure, IOC extraction, and cryptocurrency wallet movement.

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Professional ProjectTabletop

Attacker Vs Six Defenders Tabletop Exercise

Defensive exercise design focused on attacker actions, defender counters, evidence sources, telemetry, and detection gap identification.

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Detection EngineeringMITRE ATT&CK

Full MITRE ATT&CK Coverage Map

Sanitized detection engineering project mapping attacker behavior, telemetry, and detection logic across multiple security tools.

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Browser ExtensionCredential Theft

Malicious ChatGPT Browser Extension Analysis

Malicious browser extension analysis covering obfuscation, credential theft, keylogging, cookie access, AES encryption, and exfiltration.

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Memory ForensicsVolatility

Volatility Reveal Memory Analysis

Endpoint memory forensics focused on suspicious PowerShell activity, remote DLL execution, user context, and malware identification.

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Network ForensicsWireshark

OpenWire Wireshark Analysis

Packet capture investigation of Apache ActiveMQ exploitation, OpenWire traffic, malicious XML retrieval, and reverse shell payload delivery.

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Microsoft SentinelSOC

Microsoft Sentinel Challenge Lab

SOC investigation lab focused on Microsoft Sentinel incidents, Log Analytics, entity review, incident ownership, and escalation workflow.

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Digital ForensicsOSINT

OSINT and Digital Forensics Cerulean Lab

Forensic investigation involving suspicious RDP activity, browser history, Slack usage, Google Drive activity, and Windows Defender logs.

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Reverse EngineeringBlackEnergy 2

Reverse Malware Engineering BlackEnergy 2 Lab

Memory based malware investigation using Volatility 2, malfind, SSDT hooks, driver dumping, and SHA256 enrichment.

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Digital ForensicsAutopsy

Countdown Digital Forensics Lab

Forensic disk image investigation involving Autopsy, Windows artifacts, messaging data, browser history, thumbnail cache, and SQLite review.

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OSINTThreat Intel

Haunted Company Threat Intelligence Lab

Threat intelligence investigation involving Base64 decoding, ExifTool metadata, IOC extraction, adversary analysis, and web shell attribution.

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SOC SimulatorSplunk

Introduction to Phishing SOC Simulator

Splunk based SOC simulator lab focused on phishing alerts, suspicious emails, attachment evidence, case reports, and True Positive closure.

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SOC SimulatorSplunk

Phishing Unfolding SOC Simulator

Live phishing attack simulation involving PowerShell execution, reverse shell behavior, suspicious DNS requests, and case reporting.

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PhishingANY.RUN

Real Life Phishing Message Analysis Using ANY.RUN

Safe analysis of real phishing messages using ANY.RUN to inspect suspicious links, redirect behavior, attacker intent, and indicators.

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Current Direction

This portfolio is being expanded around the work I am doing and studying now: security operations, endpoint investigation, vulnerability management, identity and privileged access, incident response, detection engineering, and AI security. Employer material will remain sanitized and theory focused whenever production evidence cannot be shared safely.

Disclosure Notice: All content in this portfolio is based on authorized labs, public training platforms, personal research, or sanitized professional experience. No confidential employer, customer, employee, or production information is included. The AI Security Lab Series documents public training topics only and does not disclose HTB certification exam content.