high
Summary
Summary
Action- More Information
| Protection available since | 11 February 2004 17:26:27 (GMT) |
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| Detected by | All Sophos products |
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Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
Windows NT/2000/XP/2003
In Windows NT/2000/XP/2003 you will also need to edit the following registry entry. The removal of this entry is optional in Windows 95/98/Me. Please read the warning about editing the registry.
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:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
NeroCheck= <system folder>\regedit.exe
and delete it if it exists.
Close the registry editor.
More Information
W32/Doomjuice-B is a worm which spreads by exploiting a backdoor installed by W32/MyDoom-A. The functionality of the worm is similar to W32/Doomjuice-A but without the part of the code that drops the archive with the W32/MyDoom-A source code.
The worm creates a copy of itself named regedit.exe in the Windows system folder and creates the following registry entry to ensure that the copy is run when Windows is started:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
NeroCheck= <system folder>\regedit.exe
W32/Doomjuice-B will contact computers infected with W32/MyDoom-A by attempting to connect to port 3127 of randomly chosen IP addresses. If the worm contacts a computer infected with W32/MyDoom-A a copy of W32/Doomjuice-B will be transfered to the computer and executed.
On 13th February and any date thereafter the W32/Doomjuice-B will attempt to launch a denial-of-service attack against www.microsoft.com. The denial-of-service attack routine is changed in order to make blocking of the worm HTTP requests difficult.
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