Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '120b76a60c4f19bca0912b359c5dc7b5' = '"%TEMP%\.Net framework.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '120b76a60c4f19bca0912b359c5dc7b5' = '"%TEMP%\.Net framework.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\120b76a60c4f19bca0912b359c5dc7b5.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\.Net framework.exe' = '%TEMP%\.Net framework.exe:*:Enabled:.Net framework.exe'
Creates and executes the following:
- '%TEMP%\.Net framework.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\.Net framework.exe" ".Net framework.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\.Net framework.exe
Network activity:
Connects to:
- 'an###.zapto.org':5050
UDP:
- DNS ASK an###.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'