Technical Information
To ensure autorun and distribution:
Creates the following files on removable media:
- <Drive name for removable media>:\uonyva.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:ipsec'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Injects code into
the following system processes:
- <Auxiliary element>
a large number of user processes.
Modifies file system :
Creates the following files:
- C:\autorun.inf
- C:\upudd.exe
- %TEMP%\winlsbk.exe
- <DRIVERS>\fmrrn.sys
- %TEMP%\wincfihg.exe
- %TEMP%\windndr.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\uonyva.exe
- C:\autorun.inf
- C:\upudd.exe
Deletes the following files:
- %TEMP%\windndr.exe
- %TEMP%\winlsbk.exe
- <DRIVERS>\fmrrn.sys
- %TEMP%\wincfihg.exe
Network activity:
Connects to:
- 'al###.somee.com':80
TCP:
HTTP GET requests:
- al###.somee.com/images/logo.gif?49###########
UDP:
- DNS ASK bo###clasic.ro
- DNS ASK al###.somee.com
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: ''
