Julio Ureña
Founder & Chief Technology Officer at RedTeamRD
Santo Domingo Este, Santo Domingo, Dominican Republic
Summary
👤
Senior🎓
Top SchoolJulio Ureña is a cybersecurity founder and CTO based in Santo Domingo Este with eight years of focused experience leading offensive security, training, and enterprise protection initiatives. He founded PlainText Cybersecurity Solutions and community platforms like RedTeamRD and HackConRD to raise regional cyber awareness while consulting for global vendors such as Microsoft on identity, cloud, and detection strategies. Julio combines hands-on red team tradecraft—contributing to notable open-source tools like CrackMapExec to harden SMB/WMI and authentication workflows—with a background in infrastructure, automation, and incident-focused engineering. His career began in large-scale network and data center operations, evolving into roles that blend technical sales engineering, training development at Hack The Box, and enterprise security strategy. Known for translating adversary techniques into practical defenses and training content, he also brings founder-level product and team leadership to early-stage security businesses. Fluent in both technical deep dives and community-building, he uniquely bridges local impact in the Dominican Republic with contributions to widely used pentesting tooling.
9 years of coding experience
6 years of employment as a software developer
Abusing SQL Server Trust in a Domain, Abusing SQL Server Trust in a Domain at Pentester AcademyVeeam VMCE, Veeam VMCE at Westcon AcademyEstrategia Avanzada para Emprendedores, Estrategia Avanzada para Emprendedores at Universitat Abat Oliba CEUAttacking Active Directory and Advanced Defense Methods in 2018, Attacking Active Directory and Advanced Defense Methods in 2018 at DefconCEH - Certified Ethical Hacker based course, CEH - Certified Ethical Hacker based course at Certy AcademyBachelor's degree Systems Engineering, Bachelor's degree Systems Engineering at UTESAManagement Skills Development, Management Skills Development at INFOTEPBreaching the Cloud, Breaching the Cloud at Black Hills InfosecDesigning Network Infrastructure Connectivity in Windows Server 2008 Information Technology, Designing Network Infrastructure Connectivity in Windows Server 2008 Information Technology at Microsoft E-LearningCCNA System Networking and LAN/WAN Management/Manager, CCNA System Networking and LAN/WAN Management/Manager at INTECRed Team Ops, Red Team Ops at Zero Point SecurityIngles de Inmersión Idiomas, Ingles de Inmersión Idiomas at Instituto de Lenguas y Tecnologías Aplicadas a la Educación, ILTAEConfiguring and Troubleshooting a Windows Server 2008 Network Infrastructure (6421) Information Technology, Configuring and Troubleshooting a Windows Server 2008 Network Infrastructure (6421) Information Technology at TeoremaBlackSky: Cyclone (Azure Hacking), BlackSky: Cyclone (Azure Hacking) at Hack The Box
Spanish, English
Stackoverflow
1reputation
0reached
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0questions
Github Skills (12)
pentesting10
active-directory10
smb10
python10
pentest10
mssql9
kerberos9
microsoft-sql-server9
powershell8
networking7
network7
net7
Programming languages (8)
Github contributions (5)
byt3bl33d3r/CrackMapExec
Nov 2022 - Nov 2022
A swiss army knife for pentesting networks
Role in this project:
Security Engineer
Security EngineerContributions:13 commits, 9 PRs, 5 comments in 21 days
Contributions summary:Julio primarily contributes to the `crackmapexec` project by addressing security vulnerabilities and enhancing its functionality. Their commits involve fixing issues related to access control, particularly with SMB and WMI protocols, to ensure that the tool operates with appropriate privileges and handles potential errors gracefully. They also worked on improving the usability of the tool by retrieving the username using Kerberos authentication and the mssql protocol, and correctly displaying credentials, in addition to implementing the "enabled" parameter to extract accounts.
pentestingpythonactive-directorywindowspowershell
juliourena/SharpNoPSExec
Apr 2021 - Jun 2022
Get file less command execution for lateral movement.
Contributions:10 commits, 2 PRs, 16 pushes in 1 year 1 month
command-execution
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