Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '636a9c9d6b8ee5b78aea9f33d09bbfff' = '"%TEMP%\skype.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '636a9c9d6b8ee5b78aea9f33d09bbfff' = '"%TEMP%\skype.exe" ..'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\skype.exe' = '%TEMP%\skype.exe:*:Enabled:skype.exe'
Creates and executes the following:
- '%TEMP%\skype.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\skype.exe" "skype.exe" ENABLE
Modifies file system:
Creates the following files:
- %TEMP%\skype.exe
Network activity:
Connects to:
- 'ou#####4498.ddns.net':1177
UDP:
- DNS ASK ou#####4498.ddns.net
