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Published Nov 29, 2004 | Updated Sep 15, 2017

Worm:Win32/Sober.A@mm

Detected by Microsoft Defender Antivirus

Aliases: W32/Sober.a@MM (McAfee) WORM_SOBER.A (Trend Micro) Win32/Sober.A!Worm (CA)

Summary

Win32/Sober.A@mm is a mass-mailing worm that targets certain versions of Microsoft Windows. The worm sends itself as an attachment to e-mail addresses that it finds on the infected computer. The worm is activated when the e-mail recipient opens the attachment.
It is not possible to recover manually from Win32/Sober.A@mm. You must use up-to-date antivirus software to completely clean this worm from your computer. To recover from Win32/Sober.A@mm using antivirus software, follow these steps:
  1. Disconnect from the Internet.
  2. Run up-to-date antivirus software.
  3. Take steps to prevent re-infection.

Disconnect from the Internet  

To help ensure that your computer is not actively infecting other computers, disconnect it from the Internet before proceeding by unplugging your network cable or disabling your wireless connection. You can reconnect to the Internet after running antivirus software.

Run up-to-date antivirus software  

Run up-to-date antivirus software to completely clean this worm from your computer.

Take steps to prevent re-infection  

Do not reconnect your computer to the Internet until the computer is protected from re-infection. See the "Preventing Infection" section for more information.”
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