Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'tuinpaupxyxe.exe' = '%APPDATA%\tuinpaupxyxe.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\driver\usb\WIN_UPDATE_CRYTICAL[KB6564589].exe
- <Drive name for removable media>:\driver\usb\Desktop.ini
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%WINDIR%\Explorer.EXE' = '%WINDIR%\Explorer.EXE:*:Enabled:@xpsp2res.dll,-22019'
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
- %WINDIR%\Explorer.EXE
Modifies file system :
Creates the following files:
- %APPDATA%\tuinpaupxyxe.exe
Sets the 'hidden' attribute to the following files:
- %APPDATA%\tuinpaupxyxe.exe
- <Drive name for removable media>:\driver\usb\WIN_UPDATE_CRYTICAL[KB6564589].exe
Network activity:
Connects to:
- '<Private IP address>':80
- 'un####-software.org':80
- '<Private IP address>':445
- '<Private IP address>':139
TCP:
HTTP GET requests:
- un####-software.org/zcb/tasks.php?ge############################################
UDP:
- DNS ASK un####-software.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
