Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'msdwer' = '<SYSTEM32>\msvsdle.exe'
Malicious functions:
Creates and executes the following:
- <SYSTEM32>\MZђ (downloaded from the Internet)
- <SYSTEM32>\msvsdle.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\0D6B6PI5\MZђ[1]
- <SYSTEM32>\MZђ
- <SYSTEM32>\cfg.~tmp
- <SYSTEM32>\msvsdle.exe
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\down[1].txt
- <SYSTEM32>\~down.txt
Deletes itself.
Network activity:
Connects to:
- '10##.as000.org':80
- 'localhost':1036
TCP:
HTTP GET requests:
- 10##.as000.org/MZ?
- 10##.as000.org/down.txt
UDP:
- DNS ASK 10##.as000.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
