WORM_IRCBOT.ARB

This worm may be dropped by other malware. It may be downloaded unknowingly by a user when visiting malicious Web sites.

It drops copies of itself.

It creates registry entries to enable its automatic execution at every system startup.

It sends copies of itself to target recipients using certain instant messaging applications.

It opens a random port to allow a remote user to connect to the affected system. Once a successful connection is established, the remote user executes commands on the affected system.

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