Hydroficient Externship via ExternI design and build practical AI-powered workflow automation solutions, combining CS fundamentals with hands-on externship experience.
My portfolio highlights security-focused projects.
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Hydroficient✅ Verified by Extern⏱️ In progressBuild, hack, and defend real IoT infrastructure, then hand your security playbook to an actual company. You’ll launch realistic cyberattacks, from spoofing and replay attacks to unauthorized shutoffs, and implement defenses like TLS and mTLS.
Utilized PowerShell and Computer Management to deploy RBAC and configure foundational RDP and IIS FTP services Hardened the IIS FTP infrastructure and network by disabling anonymous access, configuring strict NTFS folder permissions, and creating custom Windows Defender Firewall rules to filter and log inbound traffic Implemented local group policies to enforce minimum password lengths, cap concurrent RDP sessions, and restrict Control Panel access
Conducted forensic incident response on a compromise Windows Server environment, analyzing Event Viewer security logs and PowerShell history to identify initial access Leveraged SysInternals Suite to isolate a persistent netcat backdoor, identified an unauthorized Windows Service utilized for persistence, and pinpointed data exfiltration over HTTP via firewall log audits
Deployed a self-hosted home lab on a Raspberry Pi 5, containerizing various services with Docker Compose to manage DNS- level ad-blocking, reverse proxy routing, and service uptime monitoring Configured Caddy as a reverse proxy to route and manage traffic, and set up Tailscale to securely access services remotely
Designed and implemented a 16-round Feistel block cipher in Python with a custom 4-bit S-box built from GF(2⁴) inversion and an affine transform
I design and build practical AI-powered workflow automation solutions, combining CS fundamentals with hands-on externship experience.
I am Ashley Janelle Rabino, a junior studying Computer Science at UMBC with a minor in Sociology. I work at Wegmans and I am completing the Hydroficient IoT Cyber Defense externship. I build and defend systems, run incident response simulations, and maintain a personal homelab using Docker, Caddy, and Tailscale.
Externships
Hydroficient IoT Cyber Defense Externship
In progress
Experience
Order Fulfillment Associate
Wegmans Food Market · May 2024 – Present
Education
University of Maryland, Baltimore County
B.S. in Computer Science, Minor in Sociology · Class of 2026
Skills
✅ Verified by Extern · ⏱️ In progress
Build, hack, and defend real IoT infrastructure, then hand your security playbook to an actual company. You’ll launch realistic cyberattacks, from spoofing and replay attacks to unauthorized shutoffs, and implement defenses like TLS and mTLS.
The externship involved working with an operational IoT installation for a marina, mapping device interactions and security controls. The work analyzed attack surfaces and implemented defensive measures such as TLS and mutual TLS. Deliverables recorded include threat exercises and a security playbook produced for the site.
I produced a mapped asset inventory, a STRIDE-based threat analysis with documented attack paths and mitigations, and delivered both a PDF report and a visual threat-model card.
The externship task presented the Grand Marina water system. I mapped assets, applied STRIDE to identify threats, documented attack paths and mitigations, and produced a PDF plus a visual threat-model card as the final deliverable.
Utilized PowerShell and Computer Management to deploy RBAC and configure foundational RDP and IIS FTP services Hardened the IIS FTP infrastructure and network by disabling anonymous access, configuring strict NTFS folder permissions, and creating custom Windows Defender Firewall rules to filter and log inbound traffic Implemented local group policies to enforce minimum password lengths, cap concurrent RDP sessions, and restrict Control Panel access
Conducted forensic incident response on a compromise Windows Server environment, analyzing Event Viewer security logs and PowerShell history to identify initial access Leveraged SysInternals Suite to isolate a persistent netcat backdoor, identified an unauthorized Windows Service utilized for persistence, and pinpointed data exfiltration over HTTP via firewall log audits
Deployed a self-hosted home lab on a Raspberry Pi 5, containerizing various services with Docker Compose to manage DNS- level ad-blocking, reverse proxy routing, and service uptime monitoring Configured Caddy as a reverse proxy to route and manage traffic, and set up Tailscale to securely access services remotely
Designed and implemented a 16-round Feistel block cipher in Python with a custom 4-bit S-box built from GF(2⁴) inversion and an affine transform
