Troj/Pirlames-B is a Trojan for the Windows platform.
When run Troj/Pirlames-B will search the harddrive for files with extensions including the following:
EXE, BAT, CMD, INI, ASP, HTM, HTML, PHP, CLASS, JAVA, DBX, EML, MBX, TBB, WAB, HLP, TXT, MP3, XLS, LOG, BMP
Troj/Pirlames-B will delete any such files it finds, replacing them with image files of the same name, but with an added (double) JPG extension. These images are cartoons with Japanese messages.
Troj/Pirlames-B may also display such cartoon messages with Japanese text onto the screen.