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Trojan.MulDrop8.33532

Added to the Dr.Web virus database: 2018-08-03

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates or modifies the following files:
  • %ALLUSERSPROFILE%\Start Menu\Programs\Startup\WinAP.lnk
Modifies file system:
Creates the following files:
  • %TEMP%\ext2.tmp
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDTRb0d7.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZD12b0a8.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDb089.rra
  • %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\Setup.ini
  • C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\OBJECTS.DATA
  • %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\setuaf22.rra
  • C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\MAPPING2.MAP
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\UNICb0f7.rra
  • %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\Setuaef3.rra
  • %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\Setuaee3.rra
  • 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
  • %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\dataae86.rra
  • %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\dataae76.rra
  • %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\layoae57.rra
  • C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\INDEX.BTR
  • C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\MAPPING1.MAP
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\WA01b3a6.rra
  • %ALLUSERSPROFILE%\Start Menu\Programs\Gigabyte WLAN (GN-WLBZ series)\WinAP.lnk
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDMLb1c2.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1Ub4b0.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD12b490.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1Ub462.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1Ub452.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1Ub423.rra
  • <SYSTEM32>\ZDNDb404.rra
  • C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\FS\OBJECTS.MAP
  • C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\Repository\$WinMgmt.CFG
  • <SYSTEM32>\ZDN5b3c5.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\WS01b387.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD12b368.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\GDisb339.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\RmDeb2eb.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDWib23f.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZyDeb21f.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZyDeb200.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDCob145.rra
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDMLb174.rra
  • C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\domain.txt
  • %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\iuse7bec.rra
  • %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\core796c.rra
  • %TEMP%\7593.rra
  • %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\temp.000
  • %TEMP%\IEC4.tmp
  • %TEMP%\pft3.tmp\Disk1\layout.bin
  • %TEMP%\pft3.tmp\Disk1\Setup.inx
  • %TEMP%\pft3.tmp\Disk1\Setup.ini
  • %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\ctor79ba.rra
  • %TEMP%\pft3.tmp\Disk1\Setup.exe
  • %TEMP%\pft3.tmp\Disk1\data1.cab
  • %TEMP%\pft3.tmp\Disk1\data1.hdr
  • %TEMP%\pft3.tmp\Disk1\ikernel.ex_
  • %TEMP%\pft3.tmp\Disk1\setup.bmp
  • %TEMP%\pft3.tmp\Disk1\setupXX.bmp
  • %TEMP%\pft3.tmp\pftw1.pkg
  • %TEMP%\plf1.tmp
  • %TEMP%\pft3.tmp\Disk1\data2.cab
  • 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_MACHINE_SAM
  • %CommonProgramFiles%\InstallShield\IScript\iscr7dc1.rra
  • 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_SECURITY
  • C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_USER_.DEFAULT
  • 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_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\ComDb.Dat
  • 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_USER_NTUSER_S-1-5-19
  • C:\System Volume Information\_restore{E7F0F64C-F7E5-4319-8757-E9A20C1C4E14}\RP16\snapshot\_REGISTRY_USER_NTUSER_S-1-5-18
  • %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\_IsR8850.rra
  • %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\defa87d3.rra
  • %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\isrt8756.rra
  • %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\valu86d9.rra
  • %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\setu83eb.rra
  • %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\obje7b7f.rra
  • %ALLUSERSPROFILE%\Start Menu\Programs\Gigabyte WLAN (GN-WLBZ series)\Uninstall Gigabyte Wireless LAN Package.lnk
Deletes the following files:
  • %TEMP%\ext2.tmp
  • %TEMP%\pft3.tmp\pftw1.pkg
  • %TEMP%\IEC4.tmp
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZyDelReg.exe
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1UNT.CAT
Moves the following files:
  • from %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\temp.000 to %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\IKernel.exe
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\UNICb0f7.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\UNICOWS.DLL
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDCob145.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDConfig.INI
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDMLb174.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDMLa.INI
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDMLb1c2.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDMLu.INI
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZyDeb21f.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZyDelReg.exe
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDWib23f.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDWinAP.exe
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\RmDeb2eb.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\RmDevice.exe
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\GDisb339.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\GDiskRm.exe
  • from <SYSTEM32>\ZDN5b3c5.rra to <SYSTEM32>\ZDN50.dll
  • from <SYSTEM32>\ZDNDb404.rra to <SYSTEM32>\ZDNDIS5.sys
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\WS01b387.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\WS01UPh.bin
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1Ub452.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1U2K.SYS
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1Ub462.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1UXP.SYS
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD12b490.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1201U.INF
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1Ub4b0.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1UNT.CAT
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDTRb0d7.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDTRLib.DLL
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\WA01b3a6.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\WA01UPH.b
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZD12b0a8.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZD12APP.dll
  • from %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\setuaf22.rra to %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\setup.inx
  • from %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\core796c.rra to %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\corecomp.ini
  • from %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\ctor79ba.rra to %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\ctor.dll
  • from %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\obje7b7f.rra to %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\objectps.dll
  • from %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\iuse7bec.rra to %CommonProgramFiles%\InstallShield\Engine\6\Intel 32\iuser.dll
  • from %CommonProgramFiles%\InstallShield\IScript\iscr7dc1.rra to %CommonProgramFiles%\InstallShield\IScript\iscript.dll
  • from %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\setu83eb.rra to %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\setup.inx
  • from %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\valu86d9.rra to %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\value.shl
  • from %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\isrt8756.rra to %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\isrt.dll
  • from %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\defa87d3.rra to %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\default.pal
  • from %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\_IsR8850.rra to %TEMP%\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\_IsRes.dll
  • from %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\layoae57.rra to %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\layout.bin
  • from %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\dataae76.rra to %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\data1.hdr
  • from %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\dataae86.rra to %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\data1.cab
  • from %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\Setuaee3.rra to %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\Setup.exe
  • from %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\Setuaef3.rra to %ProgramFiles%\InstallShield Installation Information\{51C0BF97-FDBC-4401-872A-1D5724C30AF1}\Setup.ini
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDb089.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvZD.dll
  • from %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD12b368.rra to %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1201U.SYS
Substitutes the following files:
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZyDelReg.exe
  • %ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1UNT.CAT
Miscellaneous:
Searches for the following windows:
  • ClassName: '' WindowName: 'Gigabyte 802.11b Wireless LAN Monitor'
  • ClassName: '' WindowName: 'ZyDAS Wireless LAN Configuration Tool '
Creates and executes the following:
  • '%TEMP%\pft3.tmp\Disk1\Setup.exe'
  • '%CommonProgramFiles%\InstallShield\Engine\6\Intel 32\IKernel.exe' -RegServer
  • '%CommonProgramFiles%\InstallShield\Engine\6\Intel 32\IKernel.exe' 32\IKernel.exe -Embedding
  • '%CommonProgramFiles%\InstallShield\Engine\6\Intel 32\IKernel.exe' /REGSERVER
  • '%ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\ZDWinAP.exe'
Executes the following:
  • '<SYSTEM32>\rundll32.exe' "%ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvZD.DLL",ZDInsInf "%ProgramFiles%\Gigabyte Technology Corporation\Gigabyte Wireless LAN\InsDrvTemp_USB\ZD1201U.INF"

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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Download by serial number

  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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