Mobler.b is a worm that spreads through local drives, network shares and removable media such as floppy disks or USB drives. Once executed, the parasite secretly installs itself to the system and runs a spreading routine. It copies itself to all available drives and also creates infected files in folders containing JPEG images. Then Mobler.b runs a payload. It disables the Registry Editor and changes some system settings. The worm runs on every Windows startup.