Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'b5f8c5c11fef62da44a3af0c9722dde1' = '"%PROGRAMDATA%\sihost.exe" ..'
- [<HKLM>\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'b5f8c5c11fef62da44a3af0c9722dde1' = '"%PROGRAMDATA%\sihost.exe" ..'
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\b5f8c5c11fef62da44a3af0c9722dde1.exe
Malicious functions
Executes the following
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%PROGRAMDATA%\sihost.exe" "sihost.exe" ENABLE
Injects code into
the following user processes:
- sihost.exe
Modifies file system
Creates the following files
- %PROGRAMDATA%\sihost.exe
Network activity
Connects to
- 'mi###i.p-e.kr':5552
UDP
- DNS ASK mi###i.p-e.kr
Miscellaneous
Creates and executes the following
- '%PROGRAMDATA%\sihost.exe'
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%PROGRAMDATA%\sihost.exe" "sihost.exe" ENABLE' (with hidden window)
