high
Summary
Summary
Action- More Information
| Included in our products from | March 2002 (3.55) |
|---|---|
| Detected by | All Sophos products |
Action
- Summary
- Action
- More Information
Please follow the instructions for disinfecting PE executables.
Windows 98/Me
You will also need to edit the following registry entry, if it is present. 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\WQK
and delete it if it exists.
Close the registry editor.
Windows 2000/XP
You will also need to edit the following registry entry, if it is present. 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\WindowsNT\CurrentVersion\
Windows\AppInit_DLLs
and delete it if it exists.
Close the registry editor.
More Information
W32/ElKern-B is an executable file virus that works under Windows 98, Windows Me, Windows 2000 and Windows XP. It is capable of infecting file cavities, meaning that it may not change the sizes of files it infects.
Under Windows 98 and Windows Me W32/ElKern-B copies itself to the Windows System directory as the hidden file Wqk.exe and sets the registry key:
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\WQK
to point to this file so that the virus runs every time the computer is rebooted.
Under Windows 2000 and Windows XP W32/ElKern-B copies itself to the Windows System directory as the hidden file Wqk.dll, and sets the registry key:
HKLM\Software\Microsoft\WindowsNT\CurrentVersion\
Windows\AppInit_DLLs
to point to this file so that the virus runs every time the computer is booted.
W32/ElKern-B is carried and dropped by some members of the W32/Klez family. The virus has a destructive payload - on March 13 or September 13 the virus will overwrite files with zeros rather than infect them.
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