Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'UserLogon.exe'
Malicious functions:
Creates and executes the following:
- 'C:\71892995\0.exe'
- 'C:\71892995\6531922.exe'
- 'C:\71892995\0.exe' (downloaded from the Internet)
- 'C:\71892995\6531922.exe' (downloaded from the Internet)
Modifies file system:
Creates the following files:
- C:\71892995\aples.exe
- C:\71892995\0.exe
- %WINDIR%\UserLogon.exe
- C:\UserLogon.exe
- C:\71892995\6531922.exe
- C:\71892995\logon.exe
Network activity:
Connects to:
- 'qu######e-developerxe2.com':80
- 'localhost':1036
TCP:
HTTP GET requests:
- http://qu######e-developerxe2.com/DA-21/Xp/aples.exe
- http://qu######e-developerxe2.com/DA-21/Xp/br.exe
- http://qu######e-developerxe2.com/DA-21/Xp/logon.exe
- http://qu######e-developerxe2.com/DA-21/Xp/Explorer.exe
- http://qu######e-developerxe2.com/DA-21/Xp/service.exe
UDP:
- DNS ASK qu######e-developerxe2.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_WINHELP' WindowName: ''
