US Patent Issued to River Security Technology (Shanghai) on Sept. 22 for "Method for detecting ransomware-encrypted file, storage medium and electronic device" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,743,514, issued on Sept. 22, was assigned to River Security Technology (Shanghai) Co. Ltd. (Shanghai).

"Method for detecting ransomware-encrypted file, storage medium and electronic device" was invented by Yixin Sun (Shanghai), Yumin Lin (Shanghai) and Lixin Zhang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for detecting a ransomware-encrypted file includes: acquiring a designated file; extracting bytes from a file header, a file middle portion and a file trailer of the designated file respectively; extracting features from the extracted bytes, where the extracted features include at least a variance of a distribution of a first p...