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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Sober.J

Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Sober.J
Technical name:W32/Sober.J.worm
Threat level:Medium
Alias:W32/Sober.k@MM, Email-Worm.Win32.Sober.j, W32.Sober.J@mm
Type:Worm
Effects:  

It connects to the TCP port 37 of several websites and attempts to enter POP3 mail accounts in GMX and download updates from the Internet. It spreads via e-mail in a message that is written in English or German.

Affected platforms:

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

First detected on:Jan. 31, 2005
Detection updated on:Feb. 1, 2005
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Sober.J is a worm that connects to the TCP port 37 (Network Time Protocol, NTP) of several websites.

Additionally, Sober.J attempts to carry out some other actions, as entering POP3 mail accounts in GMX, downloading updates from the Internet and restoring entries in the Windows Registry that have been modified by other malware.

Sober.J spreads via e-mail, in a message that is written in English or German, depending on the extension of the recipient's mail domain.

Visible Symptoms 

    

Sober.J is easy to recognize, as it reaches the computer in an e-mail message that can be written in English or German and has the following characteristics:

  • English:

    Subject:
    I've got YOUR email on my account!!

    Attachments: one of the following:
    TEXT.ZIP
    EMAIL_TEXT.ZIP
  • German:

    Subject:
    Ey du DOOF Nase, warum beantw...

    Attachments: one of the following:
    TEXTE.ZIP
    MAIL-TEXTE.ZIP

Additionally, once Sober.J has affected a computer, it displays the following messages on screen when it is run:

  • It opens Notepad and displays the following text:

  • It displays the following error message on screen: