Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '04998d0045bdad78f2db516cfedf99a9' = '"%TEMP%\btc.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '04998d0045bdad78f2db516cfedf99a9' = '"%TEMP%\btc.exe" ..'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\btc.exe' = '%TEMP%\btc.exe:*:Enabled:btc.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\btc.exe" "btc.exe" ENABLE
Modifies file system:
Creates the following files:
- %TEMP%\btc.exe
Network activity:
Connects to:
- 'ti###u.ddns.net':5552
UDP:
- DNS ASK ti###u.ddns.net
Miscellaneous:
Creates and executes the following:
- '%TEMP%\btc.exe'
