Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'f84342660a2bf8a6a6045c193906d6d6' = '"%TEMP%\svhost.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'f84342660a2bf8a6a6045c193906d6d6' = '"%TEMP%\svhost.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\f84342660a2bf8a6a6045c193906d6d6.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\svhost.exe' = '%TEMP%\svhost.exe:*:Enabled:svhost.exe'
Creates and executes the following:
- '%TEMP%\svhost.exe'
- '%WINDIR%\0co6ca0RlkeFlANhZgBe.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\svhost.exe" "svhost.exe" ENABLE
Modifies file system :
Creates the following files:
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\enterprisesec.config.cch.new
- %TEMP%\svhost.exe
- %WINDIR%\0co6ca0RlkeFlANhZgBe.exe
- %WINDIR%\Microsoft.NET\Framework\v2.0.50727\CONFIG\security.config.cch.new
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:
- 'ma####y.zapto.org':5552
UDP:
- DNS ASK ma####y.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
