Hello there, I'm Sergey!

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👨‍💻 Overview

I am committed to advancing my career in cybersecurity and am actively seeking a role as a Cybersecurity Analyst. I have developed skills in threat detection, incident response, and system security, all of which are demonstrated in my project portfolio. I am eager to apply my knowledge in real-world environments and continue to grow and evolve in the dynamic field of cybersecurity.

💻 My TryHackMe Profile

Check out my progress and accomplishments on TryHackMe — ranked in the top 2%.

🧰 Cybersecurity Labs

My hands-on projects showcasing practical skills across multiple cybersecurity domains.

Standalone Cybersecurity Labs

Fundamental security skills: securing remote access, network traffic analysis, cloud monitoring, and application security.

Focus Area	Project
SSH Hardening (Fail2Ban, UFW, KeyAuth, Tailscale)	Enhancing SSH Security
Network Traffic Analysis (Wireshark)	Malicious Packet Analysis
Cloud Honeypot Monitoring (Azure Sentinel)	Azure SOC Honeypot
Web Application Firewall Configuration	SafeLine WAF on DVWA
APT & Cyber Kill Chain Investigation (Splunk)	APT Investigation

Incident Response Labs

Detecting and responding to credential attacks, malicious scripts, and anomalous user activity using Azure Sentinel.

Focus Area	Project
Brute-Force & Credential Stuffing Detection	Brute-Force Alert Rule
PowerShell Suspicious Activity	PowerShell Suspicious Web Request
Impossible Travel Anomaly Detection	Geo-Location Anomaly Detection

Threat Hunting Labs

Advanced threat hunting using Microsoft Defender for Endpoint and Kusto Query Language (KQL).

Focus Area	Project
Multi-Stage Attack Investigation	The Great Admin Heist CTF
Public-Facing IP & Brute-Force Detection	Public Facing IP Detection
Internal Network Slowdown Investigation	Network Slowdowns Incident
Insider Threat & Data Exfiltration	Data Exfiltration by Employee

Vulnerability & Compliance Labs

Scanning and remediating vulnerabilities and applying security baselines.

Focus Area	Project
Vulnerability Scanning & Remediation (Tenable)	Nessus Scan & Remediation
STIG Account & Authentication Hardening	Secure Authentication STIGs
STIG Audit Policy Configuration	Audit Policy Enforcement STIGs
STIG Disabling Insecure Features	System Hardening STIGs

Google Cybersecurity Pro Labs

Core cybersecurity principles and frameworks from Google’s Cybersecurity Professional training.

Focus Area	Project
Risk Assessment & Security Audits	Risk Management Lab
File Permissions & Access Controls	File Permissions Lab
SQL Injection Filters	SQL Filtering Lab
Vulnerability Assessment (NIST SP 800-30)	Vulnerability Assessment Lab
Network Packet Capture Analysis	Network Analysis Lab
Incident Handling Documentation	Incident Handler Journal
Threat Modelling (PASTA Framework)	PASTA Worksheet

🛠️ Tools

Here’s a look at the tools I’ve worked with and have experience using.

Threat Intelligence

Network Analysis & Monitoring

Endpoint Monitoring & EDR

SIEM & Log Analysis

Vulnerability Management

Email Threat Analysis

Malware & Forensics

Web & File Analysis

Platforms & Virtualisation

📑 Certifications

A list of my certifications, which can be verified by clicking the associated button.

Earned

View All 17+ Certifications on LinkedIn

Expected

🎓 Formal Education

First-Class Honours Degree in Business Studies (BA)
Nottingham Trent University

🎯 Notable Soft Skills

• Highly adaptable
• Highly motivated self-learner
• Strong written and verbal communication skills
• Excellent problem-solving abilities
• Solid presentation skills
• Strong team player with a collaborative mindset
• Inquisitive and committed to continuous learning
• Solid business acumen

📌 Helpful Resources

Blue Team Reference Links