Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'cf0f912aa87fb87dd09d7a961213c3f7' = '"%APPDATA%\yahoo.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cf0f912aa87fb87dd09d7a961213c3f7' = '"%APPDATA%\yahoo.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\cf0f912aa87fb87dd09d7a961213c3f7.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\yahoo.exe' = '%APPDATA%\yahoo.exe:*:Enabled:yahoo.exe'
Creates and executes the following:
- '%APPDATA%\yahoo.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\yahoo.exe" "yahoo.exe" ENABLE
Modifies file system :
Creates the following files:
- %APPDATA%\yahoo.exe
Network activity:
Connects to:
- 'ka####.no-ip.biz':1177
UDP:
- DNS ASK ka####.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
