Duc Dat Dau (a.k.a cauchyfish)

A final-year Cybersecurity undergraduate at Thuyloi University (TLU).

CTF Competition (3+ yrs): national and international Capture The Flag tournaments, specializing in Reverse Engineering and Binary Exploitation.

My focus (1 yrs): automated vulnerability discovery, researching and implementing fuzzing engines (AFL++, AFLGo, HyperGo).

Research: fuzzing, reverse engineering, malware analysis, and Game Theory Optimal (GTO) Poker.

Academic & CTF Highlights:

• Ranked #1 (CPA: 4.00) the Cybersecurity major at TLU
• Finalist, Digital Dragons CTF (‘24, ‘25)
• Finalist, ASEAN Student Contest on Information Security (‘24)
• Consolation Prize, National Cybersecurity Student Contest Vietnam Final (‘25)
• Bronze Medalist, Vietnam National Mathematics Olympiad for Undergraduates
• Le Van Kiem Scholarship for Excellence student
• Academic Scholarships (7/7 semesters)

Security Research

[1] Research on the technique of File Structure Attack

• Duc Dat Dau, Vo Ta Hoang, Pham Thanh Binh
• Thuyloi University Student Research Conference, 2025.
• [Paper], [Slides]

[2] Generator-Based Fuzzing: Enhancing Coverage and Reusing High-Quality Inputs

• Vo Ta Hoang, Doan Thi Que, Duc Dat Dau
• Thuyloi University Annual Scientific Conference, 2025.