Technical Information
To ensure autorun and distribution:
Infects the following executable files:
- %CommonProgramFiles%\Java\Java Update\jusched.exe
Creates the following files on removable media:
- <Drive name for removable media>:\pgucgm.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] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<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 execution of the following system utilities:
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Creates and executes the following:
- '%TEMP%\svchost.exe'
- '%TEMP%\evdf.exe'
Executes the following:
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RESFD43.tmp" "%TEMP%\vbcFD22.tmp"
- '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\vbc.exe' /noconfig @"%TEMP%\wmw7flk8.cmdline"
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\FirewallControlPanel.dll,ShowNotificationDialog /configure /ETOnly 0 /OnProfiles 6 /OtherAllowed 0 /OtherBlocked 0 /OtherEdgeAllowed 0 /NewBlocked 2 "%TEMP%\evdf.exe"
Injects code into
the following system processes:
- <SYSTEM32>\rundll32.exe
a large number of user processes.
Modifies file system :
Creates the following files:
- C:\autorun.inf
- %TEMP%\winwnwfb.exe
- %TEMP%\wmw7flk8.exe
- %APPDATA%\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.exe
- \Device\Mup\.host\Shared Folders\vm_shara\autorun.inf
- \Device\Mup\.host\Shared Folders\vm_shara\wqrsc.pif
- \Device\HarddiskVolume3\mkbp.exe
- C:\spnoms.exe
- \Device\HarddiskVolume3\autorun.inf
- %TEMP%\663L3S.resources
- %TEMP%\MSNPSharp.dll
- %TEMP%\evdf.exe
- %TEMP%\WWmcQ.resources
- %TEMP%\svchost.exe
- %TEMP%\vbcFD22.tmp
- %TEMP%\RESFD43.tmp
- %TEMP%\wmw7flk8.out
- %TEMP%\wmw7flk8.0.vb
- %TEMP%\wmw7flk8.cmdline
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\pgucgm.exe
- <Drive name for removable media>:\autorun.inf
- \Device\Mup\.host\Shared Folders\vm_shara\wqrsc.pif
- \Device\Mup\.host\Shared Folders\vm_shara\autorun.inf
- C:\spnoms.exe
- C:\autorun.inf
- \Device\HarddiskVolume3\mkbp.exe
- \Device\HarddiskVolume3\autorun.inf
Deletes the following files:
- %TEMP%\wmw7flk8.out
- %TEMP%\wmw7flk8.0.vb
- %TEMP%\winwnwfb.exe
- %TEMP%\wmw7flk8.exe
- %TEMP%\wmw7flk8.cmdline
- %TEMP%\svchost.exe
- %TEMP%\evdf.exe
- %TEMP%\vbcFD22.tmp
- %TEMP%\RESFD43.tmp
Network activity:
Connects to:
- '17#.#3.169.14':80
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''