Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '6159c1d140fc52d49bf638aeb810767f' = '"%TEMP%\Torjan.exe" ..'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '6159c1d140fc52d49bf638aeb810767f' = '"%TEMP%\Torjan.exe" ..'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\6159c1d140fc52d49bf638aeb810767f.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\Torjan.exe' = '%TEMP%\Torjan.exe:*:Enabled:Torjan.exe'
Creates and executes the following:
- '%TEMP%\Torjan.exe'
- 'C:\Extracted\XxW1.exe'
Executes the following:
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen C:\Extracted\images.jpg
- '<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\Torjan.exe" "Torjan.exe" ENABLE
Modifies file system :
Creates the following files:
- %TEMP%\Torjan.exe
- %HOMEPATH%\Recent\images.lnk
- %HOMEPATH%\Recent\Extracted.lnk
- %TEMP%\sfx.ini
- C:\Extracted\images.jpg
- C:\Extracted\XxW1.exe
Deletes the following files:
- %TEMP%\sfx.ini
Network activity:
Connects to:
- 'fa###.no-ip.biz':1177
UDP:
- DNS ASK fa###.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: '(null)' WindowName: '123456789123456789'
- ClassName: 'Indicator' WindowName: '(null)'
