Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '78e3130ac184b69b5e3538a6fabaf04c' = '"%TEMP%\Yaho!.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '78e3130ac184b69b5e3538a6fabaf04c' = '"%TEMP%\Yaho!.exe" ..'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Yaho!.exe' = '%TEMP%\Yaho!.exe:*:Enabled:Yaho!.exe'
Creates and executes the following:
- '%TEMP%\Yaho!.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Yaho!.exe" "Yaho!.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\Yaho!.exe
Network activity:
Connects to:
- 'az####s.myftp.biz':1144
UDP:
- DNS ASK az####s.myftp.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
