Machine learning algorithms help Romania’s CERT (computer emergency response team) identify phishing and malicious websites to protect Romanian Internet users, Andrei Bozeanu, Security Consultant for CERT-RO, said at the 2016 DefCamp conference taking place in Bucharest.
CERT-RO focuses on monitoring the security of Romanian websites in the face of drive-by attacks. However, the high number of sites (372.000) and the proliferation of complex cyber-threats such as ransomware and phishing make the job increasingly difficult.
After scrutinizing files and URLS, they compiled a set of heuristics and developed a system based on the Random Forests machine learning algorithm. Multiple agents were analyzing every URL, its name and score and sent it to an anomaly detection engine.
“We chose this algorithm because it’s one of the most successful in terms of capturing nonlinearities and feature interactions, “ Bozeanu added. “With this method, the same dataset can be fed into a Regressor and a Classifier and its ease-of-use and high performance makes it perfect for the task.”
Bozeanu said this was a test, but CERT-RO will continue improving detection scores with the help of machine learning technologies.