Sophos

W32/Caric-A

Aliases
  • W32.Caric@mm
  • W32/MyLife.b@MM
Category
Type
What to do
Prevalence low high

Summary

 
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Action

Please follow the instructions for removing worms.

Please read the instructions for removing worms.

Windows NT/2000/XP

In Windows NT/2000/XP you will also need to edit the following registry entry. The removal of this entry is optional in Windows 95/98/Me.

At the taskbar, click Start|Run. Type 'Regedit' and press Return. The registry editor opens.

Before you edit the registry, you should make a backup. On the 'Registry' menu, click 'Export Registry File'. In the 'Export range' panel, click 'All', then save your registry as Backup.

Locate the HKEY_LOCAL_MACHINE entry:

HKEY_CURRENT_USER\Software\Microsoft\Windows\
CurrentVersion\Run\win = "C:\Windows\System\cari.scr"

and delete it if it exists.

Close the registry editor.

More Information

W32/Caric-A is a worm which arrives in an email with the following characteristics:

Subject line: bill caricature
Attached file: cari.scr
Message text:

Hiiiii
How are youuuuuuuu?
look to bill caricature it's vvvery verrrry ffffunr
i promise you will love it? ok
buy

========No Viruse Found========
         MCAFEE.COM

W32/Caric-A email

If the user runs the attachment and Outlook is installed, then W32/Caric-A sends itself to the addresses in the user's address book. The worm also displays a cartoon of a man wearing a "Bill" badge and playing a saxophone.

Cartoon

The worm saves a copy of itself in the Windows system folder and adds the following value to the registry:

HKEY_CURRENT_USER\Software\Microsoft\Windows\
CurrentVersion\Run\win = "C:\Windows\System\cari.scr"

W32/Caric-A has a payload which is activated at 8am every day. It attempts to delete C:\*.*, D:\*.*, E:\*.* and F:\*.*. It will also try to remove files with the extensions SYS, VXD, OCX and NLS.

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