Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '5519c5cf4fe32d8933136227319f75a1' = '"%APPDATA%\Chrome.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '5519c5cf4fe32d8933136227319f75a1' = '"%APPDATA%\Chrome.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\5519c5cf4fe32d8933136227319f75a1.exe
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\5519c5cf4fe32d8933136227319f75a1.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%APPDATA%\Chrome.exe' = '%APPDATA%\Chrome.exe:*:Enabled:Chrome.exe'
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%\Chrome.exe" "Chrome.exe" ENABLE
Modifies file system:
Creates the following files:
- %APPDATA%\Chrome.exe
Sets the 'hidden' attribute to the following files:
- %APPDATA%\Chrome.exe
- %HOMEPATH%\Start Menu\Programs\Startup\5519c5cf4fe32d8933136227319f75a1.exe
- <Drive name for removable media>:\5519c5cf4fe32d8933136227319f75a1.exe
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- 'localhost':5553
Miscellaneous:
Creates and executes the following:
- '%APPDATA%\Chrome.exe'
