Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'b2af3197c7104e4fe5c825892590e755' = '"%APPDATA%\explorer.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'b2af3197c7104e4fe5c825892590e755' = '"%APPDATA%\explorer.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\b2af3197c7104e4fe5c825892590e755.exe
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\b2af3197c7104e4fe5c825892590e755.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\explorer.exe' = '%APPDATA%\explorer.exe:*:Enabled:explorer.e...
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%APPDATA%\explorer.exe" "explorer.exe" ENABLE
Modifies file system:
Creates the following files:
- %APPDATA%\explorer.exe
Sets the 'hidden' attribute to the following files:
- %APPDATA%\explorer.exe
- %HOMEPATH%\Start Menu\Programs\Startup\b2af3197c7104e4fe5c825892590e755.exe
- <Drive name for removable media>:\b2af3197c7104e4fe5c825892590e755.exe
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- 're####o.ddns.net':1177
UDP:
- DNS ASK re####o.ddns.net
Miscellaneous:
Creates and executes the following:
- '%APPDATA%\explorer.exe'
