This is Trend Micros detection for the files infected by the mother file infector PE_MABEZAT.B-O. The malicious code in this type of infection is appended to the host file and a portion of this file is overwritten and encoded.
Upon execution, this file infector drops several component files, some of which are detected as as PE_MABEZAT.B-O and TROJ_MABEZAT.D.
The dropped files are executed and as a result, malicious routines of these files are manifested in the system. It also drops a copy of its mother file infector in all folders found in removable drives using the folder name as its file name. It also drops another copy of the mother file infector in folders found in removable drives using random file names of legitimate applications.