Dr.-Ing. Pejman Najafi
Postdoc researcher
About
Dr.-Ing. Pejman Najafi is a postdoc and researcher in the Security Engineering group at the Hasso Plattner Institute, with research interests in cybersecurity, graph analytics for cybersecurity, and big-data architectures and analytics for cybersecurity.
Focus
- Cybersecurity
- Graph analytics for cybersecurity
- Big-data architectures and analytics for cybersecurity
Tags
Publications
When Prompts Become Payloads: A Framework for Mitigating SQL Injection Attacks in Large Language Model-Driven Applications
Proceedings of the 18th International Conference on Agents and Artificial Intelligence (ICAART'26), March 5-7, 2026, Marbella, Spain (AR=129/716)
Large Language Models in Cybersecurity: State-of-the-Art
Proceedings of the 11th International Conference on Information Systems Security and Privacy (ICISSP'25), February 20-22, 2025, Porto, Portugal (AR=29/151)
You are your friends: Detecting malware via guilt-by-association and exempt-by-reputation
Computers & Security (COSE), Elsevier, Volume 136, January 2024
An Evaluation Framework for Blockchain-based Public Key Infrastructures
Advances in Computational Intelligence and Communication (Eds: M. D. Hina, A. Ramdane-Cherif, R. Zitouni, A. Soukane), Springer EAISICC, 2023 (online available from: 30 September 2022)
A Comprehensive Review of Anomaly Detection in Web Logs
Proceedings of the 9th IEEE/ACM International Conference on Big Data Computing, Applications and Technologies (BDCAT’22). IEEE Press, December 6-9, 2022, Vancouver, Washington, USA (AR=(15+5)/55, online)
SIEMA: Bringing Advanced Analytics to Legacy Security Information and Event Management
Proceedings of the 17th EAI International Conference on Security and Privacy in Communication Networks (SecureComm'21), September 6-9, 2021, Canterbury, UK (Online)
NLP-based Entity Behavior Analytics for Malware Detection
Proceedings of the 40th IEEE International Performance Computing and Communications Conference (IPCCC'21), IEEE Press, October 28-30, 2021, Austin, Texas, USA (Short Paper, Online)
An Evaluation Framework for Blockchain-based Public Key Infrastructures
Proceedings of the 2nd EAI International Conference on Computational Intelligence and Communications (CICom'21), November 18-19, 2021, Versailles, France (online)
MalRank: A Measure of Maliciousness in SIEM-based Knowledge Graphs
Proceedings of 2019 Annual Computer Security Applications Conference (ACSAC'19), ACM Press, December 9-13, 2019, San Juan, Puerto Rico (AR=60/266)
Guilt-by-Association: Detecting Malicious Entities via Graph Mining
Proceedings of the 13th EAI International Conference on Security and Privacy in Communication Networks (SecureComm'17), Springer LNICST 238, October 22-25, 2017 Niagara Falls, Canada (AR=31/105)