taken from http://www.trendmicro.com/vinfo/viru...e=WORM_BAGLE.B


Description:

TrendLabs received several reports, initially from France, of this new worm spreading via email. To control the spread of this malware, TrendLabs has declared an alert as of February 17, 2004, 6:46 AM (US Pacific Time).

This memory-resident worm propagates by mass-mailing copies of itself using SMTP (Simple Mail Transfer Protocol).

The email message it sends out contains the following details:

Subject: ID %random% ... thanks
From: <random letters>@<spoofed domain>
Message body: Yours ID <random>
--
Thank
Attachment: <random>.exe


(Note: %Random% is composed of random letters.)

This malware runs on Windows 95, 98, ME, NT, 2000 and XP.

TrendLabs is currently analyzing this malware and will be providing more information.

Solution:



Terminating the Malware Program

This procedure terminates the running malware process from memory. You will need the name(s) of the file(s) detected earlier.

Open Windows Task Manager.
On Windows 95/98/ME systems, press
CTRL+ALT+DELETE
On Windows NT/2000/XP systems, press
CTRL+SHIFT+ESC, then click the Processes tab.
In the list of running programs*, locate the process:
AU.EXE
Select one of the detected files, then press either the End Task or the End Process button, depending on the version of Windows on your system.
Do the same for all detected malware files in the list of running processes.
To check if the malware process has been terminated, close Task Manager, and then open it again.
Close Task Manager.
*NOTE:On systems running Windows 95/98/ME, Task Manager may not show certain processes. You may use a third party process viewer to terminate the malware process. Otherwise, continue with the next procedure, noting additional instructions.

Removing Autostart Entries from the Registry

Removing autostart entries from the registry prevents the malware from executing during startup.

Open Registry Editor. To do this, click Start>Run, type Regedit, then press Enter.
In the left panel, double-click the following:
HKEY_CURRENT_USER>Software>Microsoft>
Windows>CurrentVersion>Run
In the right panel, locate and delete the entry:
Au.exe = “C:\%System%\au.exe”
Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 95, 98 and ME, C:\WINNT\System32 on Windows NT and 2000, and C:\Windows\System32 on Windows XP.

Close Registry Editor.
NOTE: If you were not able to terminate the malware process from memory as described in the previous procedure, restart your system.