Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'cbb8920eae82be34d5db93c3418c9b4f' = '"%TEMP%\svchost.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cbb8920eae82be34d5db93c3418c9b4f' = '"%TEMP%\svchost.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\cbb8920eae82be34d5db93c3418c9b4f.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\svchost.exe' = '%TEMP%\svchost.exe:*:Enabled:svchost.exe'
Creates and executes the following:
- '%TEMP%\svchost.exe'
- '%TEMP%\RarSFX0\clean1.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\svchost.exe" "svchost.exe" ENABLE
Modifies file system :
Creates the following files:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
- %TEMP%\svchost.exe
- %TEMP%\RarSFX0\clean1.exe
- %TEMP%\RarSFX0\HVMRuntm.dll
Deletes the following files:
- %TEMP%\RarSFX0\HVMRuntm.dll
- %TEMP%\RarSFX0\clean1.exe
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:
- 'he###.zapto.org':5552
UDP:
- DNS ASK he###.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'EDIT' WindowName: '(null)'
