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Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.


Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Harebot.M
Technical name:Bck/Harebot.M
Threat level:Medium
Effects:   It allows to gain remote access to the affected computer. It affects the productivity of the computer, the network to which it’s connected or other remote sites. It awaits remote-control orders to carry out. It does not spread automatically using its own means.
Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95

First detected on:April 29, 2010
Detection updated on:April 30, 2010
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 


Harebot.M is a backdoor that 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 on the computer.


It affects productivity, preventing tasks from being carried out:

  • In the affected computer: it converts the computer into a platform for taking malicious action surreptitiously: spam sending, launch of Denial of Service attacks, malware distribution, etc.
  • In the local network: it generates a large amount of network activity and consumes bandwidth.


It reduces the security level of the computer: it awaits remote-control orders received through HTTP.


Harebot.M does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.