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Sdbot.FAR is a worm with backdoor characteristics that belongs to the Sdbot worm family. This family has the following common characteristics:
- It allows hackers to gain remote access to the affected computer in order to carry out actions that compromise user confidentiality and impede the tasks performed.
- It uses its own IRC client in order to join an IRC channel and accept remote control commands, such as launching denial of service (DoS) attacks against websites. It can also download and run files on the affected computer.
Sdbot.FAR reaches the computer downloaded by other worm detected as Mops.A.
However, worms belonging to the Sdbot family usually employ any of the following means of transmission, among others:
- Computer networks: the worm checks if the affected computer belongs to a network. If so, it attempts to access network shared resources, using passwords that are typical or easy to guess. Then, it makes a copy of itself to those shared resources.
- Internet: the worm attacks IP addresses, in which it attempts to exploit several known vulnerabilities, such as LSASS, RPC DCOM, etc.
Sdbot.FAR is difficult to recognize, as it does not display any messages or warnings that indicate it has reached a computer.