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Trojan.DownLoader10.35750
Added to the Dr.Web virus database:
2013-10-25
Virus description added:
2013-10-31
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] '360°?E«A??e' = '%PROGRAM_FILES%\WinRAR\Formats\360Start.exe'
[<HKLM>\SOFTWARE\Classes\bestietest\shell\open\command] '' = '%PROGRAM_FILES%\Internet Explorer\IEXPLORE.exe http://www.55x.cn/'
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Creates and executes the following:
'%PROGRAM_FILES%\WinRAR\Formats\360se.exe' ???
'%PROGRAM_FILES%\WinRAR\Formats\360Start.exe' 命令行
Executes the following:
'<SYSTEM32>\wscript.exe' "%PROGRAM_FILES%\WinRAR\Formats\KB981400.vbs" 0
'%WINDIR%\regedit.exe' /s "%PROGRAM_FILES%\WinRAR\Formats\e.reg"
'<SYSTEM32>\rundll32.exe' advpack.dll,DelNodeRunDLL32 %APPDATA%\Microsoft\Internet Explorer\Quick Launch\Launch Internet Explorer Browser.lnk
'<SYSTEM32>\msiexec.exe' /i "<Current directory>\ёЯ·ЦЅЕ±ѕ.msi"
'<SYSTEM32>\msiexec.exe' /V
'<SYSTEM32>\msiexec.exe' -Embedding 5C81179F173CDCA1E98EDB0F03F815C0
Modifies settings of Windows Explorer:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoInternetIcon' = '00000001'
Modifies settings of Windows Internet Explorer:
[<HKCU>\Software\Microsoft\Internet Explorer\Main] 'Window Title' = 'МмјЈНв№ТЙзЗшwww.99tianji.comУОП·Нв№ТПВФШ °®їґКйРЎЛµФД¶БНшwww.2ks.cnГв·СРЎЛµФД¶БПВФШ'
Modifies file system :
Creates the following files:
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\MAPPING.VER
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\INDEX.MAP
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\MAPPING1.MAP
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\OBJECTS.DATA
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\MAPPING2.MAP
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP15\drivetable.txt
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\drivetable.txt
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\$WinMgmt.CFG
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\INDEX.BTR
%WINDIR%\Installer\MSI3.tmp
%PROGRAM_FILES%\WinRAR\Formats\e.reg
%PROGRAM_FILES%\WinRAR\Formats\360Start.exe
%HOMEPATH%\Desktop\Internet Explorer.e
%ALLUSERSPROFILE%\Start Menu\Internet Explorer.e
%APPDATA%\Microsoft\Internet Explorer\Quick Launch\Internet Explorer.e
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\OBJECTS.MAP
C:\Config.Msi\3efb3.rbs
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\RestorePointSize
%PROGRAM_FILES%\WinRAR\Formats\360se.exe
%PROGRAM_FILES%\WinRAR\Formats\KB981400.vbs
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\rp.log
%WINDIR%\Installer\MSI2.tmp
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_USER_NTUSER_S-1-5-18
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_USER_USRCLASS_S-1-5-19
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_USER_NTUSER_S-1-5-19
%TEMP%\3e05e.msi
<Current directory>\ёЯ·ЦЅЕ±ѕ.msi
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\x5buluo[1]
%WINDIR%\Installer\MSI1.tmp
%WINDIR%\Installer\3efb0.msi
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_USER_NTUSER_S-1-5-20
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_MACHINE_SYSTEM
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_MACHINE_SOFTWARE
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_MACHINE_SAM
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\domain.txt
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\ComDb.Dat
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_USER_NTUSER_S-1-5-21-2052111302-484763869-725345543-1003
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_USER_USRCLASS_S-1-5-20
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_USER_USRCLASS_S-1-5-21-2052111302-484763869-725345543-1003
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_MACHINE_SECURITY
C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_USER_.DEFAULT
Deletes the following files:
%WINDIR%\Installer\3efb0.msi
%WINDIR%\Installer\3efb2.ipi
%TEMP%\3e05e.msi
C:\Config.Msi\3efb3.rbs
%WINDIR%\Installer\MSI1.tmp
%WINDIR%\Installer\MSI2.tmp
%WINDIR%\Installer\MSI3.tmp
Network activity:
Connects to:
'www.x5##luo.com':80
'localhost':1036
TCP:
UDP:
Miscellaneous:
Searches for the following windows:
ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
ClassName: 'RegEdit_RegEdit' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
Curing recommendations
Windows
macOS
Linux
Android
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 .
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.
Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.
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.
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
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