Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'e6b3de2cceed69eff36f7b90c04e194c' = '"%TEMP%\u.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'e6b3de2cceed69eff36f7b90c04e194c' = '"%TEMP%\u.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\e6b3de2cceed69eff36f7b90c04e194c.exe
Creates the following files on removable media:
- <Drive name for removable media>:\e6b3de2cceed69eff36f7b90c04e194c.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\u.exe' = '%TEMP%\u.exe:*:Enabled:u.exe'
Creates and executes the following:
- '%TEMP%\u.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\u.exe" "u.exe" ENABLE
Modifies file system :
Creates the following files:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
- %TEMP%\u.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\e6b3de2cceed69eff36f7b90c04e194c.exe
Deletes the following files:
- <SYSTEM32>\PerfStringBackup.TMP
- <SYSTEM32>\wbem\Performance\WmiApRpl.ini
Moves the following files:
- from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch
- from %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new to %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch
Network activity:
Connects to:
- 'jo####r.no-ip.org':1177
UDP:
- DNS ASK jo####r.no-ip.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
