Kirthika B

Cybersecurity student · SOC and threat analysis enthusiast

Coimbatore, Tamil Nadu, India

@kirthika_b

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About

Cybersecurity-focused student with hands-on experience building a home lab, analyzing endpoint and network activity, and investigating phishing, malware, and attack telemetry. Seeking an entry-level cybersecurity opportunity to apply practical security skills and support security operations and defense.

Education

B.Sc.

VLB Janakiammal College of Arts and Science

Computer Technology · 2021
Higher Secondary

Presentation Convent Matric Hr. Sec. School

2018
Secondary

Rukmani Kannan Vidhyalaya Hr. Sec. School

2016

Skills

<3 months

DNS SSH SIEM HTTP TCP/IP Sysmon Virustotal MITRE ATT&CK Log Analysis Cybersecurity Packet Analysis Malware analysis Computer Networks Event Correlation Security Monitoring Threat Intelligence Alert configuration SPL (Search Processing Language)

Tools / apps / platforms

<3 months

Wireshark Kali Linux

Projects

Phishing Email Investigation

CyberChef, VirusTotal, WHOIS

Examined a phishing email by analyzing headers, MIME structure, and a Base64-encoded PDF attachment decoded via CyberChef; identified an embedded phishing URL, investigated its hosting infrastructure using VirusTotal and WHOIS, and documented the attack chain with extracted IOCs.
PCAP Traffic Analysis

Wireshark, VirusTotal

Analyzed a public malware PCAP to examine DNS queries, TCP sessions, and TLS traffic; traced a suspicious domain through its DNS resolution chain and correlated network artifacts with VirusTotal to extract IOCs.
LOLBIN Abuse Investigation | mshta.exe

Sysmon, MITRE ATT&CK

Simulated a Living-off-the-Land Binary attack using mshta.exe and correlated Sysmon events to identify the persistence mechanism, reconstruct the attack timeline, and map observed techniques to MITRE ATT&CK.
Attack Simulation & Endpoint Investigation | Reverse Shell + Malware Execution

Sysmon, MITRE ATT&CK

Simulated reverse shell activity and controlled malware execution in an isolated VirtualBox lab; analyzed Sysmon events to reconstruct attacker activity, terminate the malicious process, restore endpoint protection, identify IOCs, and map the attack progression to MITRE ATT&CK.
Splunk Detection Lab

Splunk Cloud, SPL, MITRE ATT&CK

Forwarded Linux auth logs and Windows Sysmon telemetry into Splunk Cloud; built and scheduled SPL detection queries for SSH brute-force attempts and Base64-encoded PowerShell execution. Validated triggered alerts against raw logs and mapped findings to MITRE ATT&CK.

Courses & certifications

30-Day MasterClass in Cyber Security · NoviTech R&D Pvt. Ltd. · 2025
Cyber · Forage
Cybersecurity Analyst · Forage
Cybersecurity · Forage

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