Technical Information
To ensure autorun and distribution:
Creates the following files on removable media:
- <Drive name for removable media>:\ounm.pif
- <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] '%WINDIR%\system\MaCs.exe' = '%WINDIR%\system\MaCs.exe:*: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
Creates and executes the following:
- %WINDIR%\system\MaCs.exe
Injects code into
the following system processes:
- <Auxiliary element>
a large number of user processes.
Modifies file system :
Creates the following files:
- %TEMP%\aeki.exe
- %TEMP%\yarwur.exe
- %TEMP%\beqiwc.exe
- %TEMP%\winymdaf.exe
- %TEMP%\bhqh.exe
- %TEMP%\xtwlp.exe
- %TEMP%\jxilk.exe
- %TEMP%\winbdsa.exe
- %TEMP%\jhrrhu.exe
- %TEMP%\tmp.ini
- %WINDIR%\system\MaCs.exe
- C:\autorun.inf
- %TEMP%\dqbuxm.exe
- <DRIVERS>\flhsm.sys
- C:\liqq.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\ounm.pif
- C:\autorun.inf
- C:\liqq.exe
Deletes the following files:
- %TEMP%\winymdaf.exe
- %TEMP%\aeki.exe
- %TEMP%\jxilk.exe
- %TEMP%\bhqh.exe
- %TEMP%\xtwlp.exe
- %TEMP%\yarwur.exe
- <DRIVERS>\flhsm.sys
- %TEMP%\jhrrhu.exe
- %TEMP%\dqbuxm.exe
- %TEMP%\beqiwc.exe
- %TEMP%\winbdsa.exe
Network activity:
Connects to:
- 'ah###iye.net':80
- 'ap###-pie.in':80
- 'am####ilim.com.tr':80
- 'g2.###owhitech.com':80
- 'www.ca###rdesk.org':80
- 'al###wry.org':80
- 'am##mex.com':80
- 'ar####.niria.biz':80
TCP:
HTTP GET requests:
- ah###iye.net/xs.jpg?4f##########
- ap###-pie.in/images/xs.jpg?4f###########
- am####ilim.com.tr/images/xs2.jpg?4f##########
- g2.###owhitech.com/xs.jpg?4f##########
- www.ca###rdesk.org/images/xs.jpg?4f##########
- al###wry.org/images/xs.jpg?4e###########
- am##mex.com/xs.jpg?4f###########
- ar####.niria.biz/xs.jpg?4f##########
UDP:
- DNS ASK ah###iye.net
- DNS ASK ap###-pie.in
- DNS ASK am####ilim.com.tr
- DNS ASK g2.###owhitech.com
- DNS ASK www.ca###rdesk.org
- DNS ASK al###wry.org
- DNS ASK am##mex.com
- DNS ASK ar####.niria.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
