Answer : Given data
* Back Orifice (BO) is a trojan that provides a backdoor into
your computer when active and you are connected to the
Internet.
* The name Back Orifice is inspired by the name
of Microsoft's BackOffice product.
* Back Orifice (BO) is a remote administration system that
allows a user to take full control of a computer remotely running
the Microsoft Windows operating system (OS) across a TCP/IP
connection, either through a simple console or graphical user
interface (GUI).
* It is still dangerous because of the following
reasons.
- There is no easy way for a computer user to know the attack is
taking place, and there is no easy way to stop the attack once Back
Orifice has installed itself on the computer.
- The application is in the form of a remote administration
system that is remotely installed without user interaction and does
not show up in the task manager panel, so it cannot be killed.
- It restarts itself each time the OS starts.
- The system's client side is installed on another computer where
the administrator can take control of the remote computer.
* BO has the following capabilities.
- System control: Allows the administrator to remotely log key
strokes or lock/reboot the machine.
- It can get detailed machine information, including access to
all drives and passwords saved or cached by the OS or user.
- File system control: Allows total control of the file system
from copying, modifying, locking and deleting to compression and
decompression.
- Process control: Spawns or kills processes at will.
- Multimedia and application control: Controls any multimedia
device, such as the computer’s webcam or microphone, plays
audio/video (A/V) files, take screenshots and more.
- Network control: Functions as an integrated packet sniffer,
allowing the monitoring of data, logs and any passwords while
redirecting any incoming packet to any port toward any other port
or address.