The trojan downloader's file is 13824 bytes long PE executable.
It has not been packed by any executable compressor.
It contains a small script engine that the trojan uses to execute
a script embedded in the trojan body. The script downloads three files
from the domain 'ddl-help.info'. We have reported the abuse to the ISP
hosting the website.
The files are stored into the following locations:
%TEMP%/mute<randomnumber>.exe
%TEMP%/volume<randomnumber>.exe
%TEMP%/bass<randomnumber>.exe
For example:
C:\Documents and Settings\user\Local Settings\Temp\mute41.exe
The downloaded files are detected as 'Trojan-Downloader.Win32.Centim.ao',
'Trojan-Downloader.Win32.Agent.mz' and 'Trojan-Dropper.Win32.Agent.jw'.
[FSAV_Database_Version]
2005-05-23_03
Technical Details:
Otto Ebeling; May 26th, 2005;
F-Secure Corporation