high
Summary
Summary
Action- More Information
| Protection available since | 9 February 2004 19:39:14 (GMT) |
|---|---|
| Detected by | All Sophos products |
Sophos beta program
- Endpoint Security and Control 9.0
- Small business solutions 4.0
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\
Gremlin= <Windows system folder>\intrenat.exe
and delete it if it exists.
Close the registry editor.
More Information
W32/Doomjuice-A is a worm which spreads by exploiting a backdoor installed by W32/MyDoom-A.
The worm creates a copy of itself named intrenat.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\Gremlin
= <Windows system folder>\intrenat.exe
The worm also creates a file named sync-src-1.00.tbz in the root, Windows, Windows system and user profile folders. Sync-src-1.00.tbz is a compressed archive containing source code of W32/MyDoom-A.
Source code dropped by the W32/Doomjuice-A worm
W32/Doomjuice-A 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-A will be transfered to the computer and executed.
On 9th February and any date thereafter the worm will wait for between 2 and 6 minutes and then attempt a distributed denial of service (DDoS) attack against www.microsoft.com.
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