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BackDoor.Andromeda.1107

Added to the Dr.Web virus database: 2015-09-16

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'FireFoxUpdServeisSystem' = '"%APPDATA%\FireFoxUpdServeis\Microsoft_ritolimewi.exe"'
Malicious functions:
Executes the following:
  • '%PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE' -k -noframemerging http://sc###i0n.run
  • '<SYSTEM32>\svchost.exe'
Injects code into
the following system processes:
Modifies file system :
Creates the following files:
  • %APPDATA%\FireFoxUpdServeis\Microsoft_ritolimewi.exe
Deletes itself.
Network activity:
Connects to:
  • 'localhost':1042
  • 'go##le.de':80
  • 'tw##ter.com':443
UDP:
  • DNS ASK go##le.de
  • DNS ASK tw##ter.com
  • '31.##8.220.4':44555
Miscellaneous:
Searches for the following windows:
  • ClassName: '' WindowName: 'Internet Explorer Security'
  • ClassName: '' WindowName: 'Internet Explorer - Security Warning'
  • ClassName: '' WindowName: 'Windows Security Warning'
  • ClassName: '' WindowName: 'Windows Security Alert'
  • ClassName: '' WindowName: 'Internet Explorer 11'
  • ClassName: '' WindowName: 'Internet Explorer 10'
  • ClassName: '' WindowName: 'Set Up Windows Internet Explorer'
  • ClassName: '' WindowName: 'Internet Explorer 8'
  • ClassName: '' WindowName: 'Internet Explorer 9'
  • ClassName: '' WindowName: 'Internet Explorer'
  • ClassName: '' WindowName: 'Security'
  • ClassName: '' WindowName: 'Windows Internet Explorer 10'
  • ClassName: '' WindowName: 'Windows Internet Explorer 11'
  • ClassName: '' WindowName: 'Security Alert'
  • ClassName: '' WindowName: 'Security Information'
  • ClassName: '' WindowName: 'Warning - Security'
  • ClassName: '' WindowName: 'Security Warning'
  • ClassName: '' WindowName: 'Windows Security'
  • ClassName: '' WindowName: 'Phishing Filter'
  • ClassName: '' WindowName: 'Microsoft Phishing Filter'
  • ClassName: '' WindowName: 'JavaScript Alert'
  • ClassName: '' WindowName: 'Information Bar'
  • ClassName: '' WindowName: 'Webpage unavailable while offline'
  • ClassName: 'MS_AutodialMonitor' WindowName: ''
  • ClassName: 'MS_WebcheckMonitor' WindowName: ''
  • ClassName: '' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: '' WindowName: 'Set Up Windows Internet Explorer 10'
  • ClassName: '' WindowName: 'Set Up Windows Internet Explorer 11'
  • ClassName: '' WindowName: 'Set Up Windows Internet Explorer 8'
  • ClassName: '' WindowName: 'Set Up Windows Internet Explorer 9'
  • ClassName: '' WindowName: 'About Internet Explorer'
  • ClassName: '' WindowName: 'Internet Explorer Alert'
  • ClassName: '' WindowName: 'Microsoft Internet Explorer'
  • ClassName: '' WindowName: 'Message from webpage'
  • ClassName: '' WindowName: 'Internet Explorer Alert!'
  • ClassName: '' WindowName: 'Windows Internet Explorer 9'
  • ClassName: '' WindowName: 'Warning!'
  • ClassName: '' WindowName: 'Reflect'
  • ClassName: '' WindowName: 'Internet Connection Error'
  • ClassName: '' WindowName: 'Warning'
  • ClassName: '' WindowName: 'Work Offline'
  • ClassName: '' WindowName: 'Pop-up Blocker'
  • ClassName: '' WindowName: 'Manage Add-ons'
  • ClassName: '' WindowName: 'Windows Network Diagnostics'
  • ClassName: '' WindowName: 'Microsoft SmartScreen Filter'
  • ClassName: '' WindowName: 'Add Search Provider'
  • ClassName: '' WindowName: 'Internet Explorer - Search Provider Default'
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: '' WindowName: 'Adobe Flash Player'
  • ClassName: '' WindowName: 'Add Search Engine'
  • ClassName: '' WindowName: 'Google Toolbar is Disabled'
  • ClassName: '' WindowName: 'Connection Error'
  • ClassName: '' WindowName: 'Privacy Alert'
  • ClassName: '' WindowName: 'Set up Internet Explorer'
  • ClassName: '' WindowName: 'Internet Explorer Script Error'
  • ClassName: '' WindowName: 'Script Error'
  • ClassName: '' WindowName: 'Add or Change Home Page'
  • ClassName: '' WindowName: 'Debugging Requires Webpage Refresh'
  • ClassName: '' WindowName: 'Webpage Error'
  • ClassName: '' WindowName: 'Windows Internet Explorer'
  • ClassName: '' WindowName: 'Windows Internet Explorer 8'
  • ClassName: '' WindowName: 'Error'
  • ClassName: '' WindowName: 'Web Browser'
  • ClassName: '' WindowName: 'Properties'
  • ClassName: '' WindowName: 'Privacy Report'
  • ClassName: '' WindowName: 'Compatibility View Settings'
  • ClassName: '' WindowName: 'Import/Export Settings'
  • ClassName: '' WindowName: 'iexplore.exe - Application Error'
  • ClassName: '' WindowName: 'Windows Internet Explorer Platform Preview Setup'
  • ClassName: '' WindowName: 'Delete Home Page'
  • ClassName: '' WindowName: 'SYSFader: iexplore.exe - Application Error'
  • ClassName: '' WindowName: 'iexplore.exe - Entry Point Not Found'

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

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