Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'e2c3649c9edbcd837f345fd776bf4931' = '"%TEMP%\carss.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'e2c3649c9edbcd837f345fd776bf4931' = '"%TEMP%\carss.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\e2c3649c9edbcd837f345fd776bf4931.exe
Creates the following files on removable media:
- <Drive name for removable media>:\e2c3649c9edbcd837f345fd776bf4931.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\carss.exe' = '%TEMP%\carss.exe:*:Enabled:carss.exe'
Creates and executes the following:
- '%TEMP%\carss.exe'
Executes the following:
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\carss.exe" "carss.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\carss.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\e2c3649c9edbcd837f345fd776bf4931.exe
Network activity:
Connects to:
- 'ro####x.zapto.org':1177
UDP:
- DNS ASK ro####x.zapto.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: '(null)'
