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Trojan.DownLoader29.21723
Added to the Dr.Web virus database:
2019-07-05
Virus description added:
2019-07-22
Technical Information
To ensure autorun and distribution
Creates or modifies the following files
<SYSTEM32>\tasks\{5d23e781-6f7e-47d0-ba74-ebf1c89877f0}
Creates the following services
[<HKLM>\System\CurrentControlSet\Services\NativeDesktopMediaService] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\NativeDesktopMediaService] 'ImagePath' = '"%ProgramFiles(x86)%\Jetmedia\NativeDesktopMediaService\desktop_media_service.exe" --service'
Malicious functions
To bypass firewall, removes or modifies the following registry keys
[<HKLM>\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
Modifies file system
Creates the following files
%TEMP%\is-a79h1.tmp\<File name>.tmp
%WINDIR%\installer\msia8ff.tmp
%WINDIR%\installer\msia91f.tmp
%WINDIR%\installer\msia9cc.tmp
%WINDIR%\installer\msiaa4a.tmp
%WINDIR%\installer\msiaa6a.tmp
%WINDIR%\installer\msiaa9a.tmp
%WINDIR%\installer\msiab66.tmp
C:\config.msi\1070b1.rbs
%WINDIR%\installer\msiac24.tmp
%TEMP%\msi6b7d.tmp
%WINDIR%\installer\msiad7c.tmp
%APPDATA%\jetmedia\nativedesktopmediaservice 3.6.0\install\2cf5f20\watchdog.exe
%APPDATA%\jetmedia\nativedesktopmediaservice 3.6.0\install\2cf5f20\commonappdatafolder\jetmedia\nativedesktopmediaservice\comdata.dat
%ProgramFiles(x86)%\jetmedia\nativedesktopmediaservice\desktop_media_service.exe
%ProgramFiles(x86)%\jetmedia\nativedesktopmediaservice\watchdog.exe
%PROGRAMDATA%\jetmedia\nativedesktopmediaservice\comdata.dat
%WINDIR%\installer\msiaf23.tmp
%WINDIR%\installer\msiafe0.tmp
%WINDIR%\installer\msib56f.tmp
%WINDIR%\installer\1070b2.msi
%WINDIR%\installer\1070b0.ipi
%WINDIR%\installer\msia8ee.tmp
%WINDIR%\installer\msi9248.tmp
%WINDIR%\installer\msi9218.tmp
%WINDIR%\installer\msi8ebc.tmp
%TEMP%\is-p4p6m.tmp\_isetup\_iscrypt.dll
%TEMP%\is-p4p6m.tmp\ijru.dll
%TEMP%\is-j4sl2.tmp\<File name>.tmp
%TEMP%\is-8jfc1.tmp\_isetup\_setup64.tmp
%TEMP%\is-8jfc1.tmp\_isetup\_iscrypt.dll
%TEMP%\is-8jfc1.tmp\ijru.dll
%TEMP%\{70aa3717-1e52-e9c7-aafe-fdf7f2d641c3}\pse.exe
%TEMP%\{70aa3717-1e52-e9c7-aafe-fdf7f2d641c3}\na.exe
%APPDATA%\jetmedia\nativedesktopmediaservice 3.6.0\install\decoder.dll
%WINDIR%\installer\msief0f.tmp
%APPDATA%\jetmedia\nativedesktopmediaservice 3.6.0\install\2cf5f20\desktop_media_service.exe
%APPDATA%\jetmedia\nativedesktopmediaservice 3.6.0\install\2cf5f20\networkdesktopmedia.msi
%WINDIR%\installer\1070ad.msi
%WINDIR%\installer\msi71b7.tmp
%WINDIR%\installer\msi7264.tmp
%WINDIR%\installer\msi72b3.tmp
%TEMP%\1b896a1019e1c419e6ac.msi72b3.tmp
%WINDIR%\installer\msi860d.tmp
%WINDIR%\installer\msi888f.tmp
%WINDIR%\installer\msi88de.tmp
%WINDIR%\installer\msi891d.tmp
%TEMP%\is-p4p6m.tmp\_isetup\_setup64.tmp
%TEMP%\msi6cd6.tmp
%WINDIR%\installer\msif663.tmp
Deletes the following files
%TEMP%\{70aa3717-1e52-e9c7-aafe-fdf7f2d641c3}\pse.exe
%TEMP%\is-j4sl2.tmp\<File name>.tmp
%TEMP%\is-a79h1.tmp\<File name>.tmp
%TEMP%\is-8jfc1.tmp\ijru.dll
%TEMP%\is-8jfc1.tmp\_isetup\_iscrypt.dll
%TEMP%\is-8jfc1.tmp\_isetup\_setup64.tmp
%TEMP%\is-p4p6m.tmp\ijru.dll
%TEMP%\is-p4p6m.tmp\_isetup\_iscrypt.dll
%WINDIR%\installer\msiafe0.tmp
%WINDIR%\installer\msib56f.tmp
%TEMP%\is-p4p6m.tmp\_isetup\_setup64.tmp
%WINDIR%\installer\msief0f.tmp
%WINDIR%\installer\msif663.tmp
%WINDIR%\installer\1070ad.msi
%WINDIR%\installer\1070b0.ipi
%APPDATA%\jetmedia\nativedesktopmediaservice 3.6.0\install\decoder.dll
%APPDATA%\jetmedia\nativedesktopmediaservice 3.6.0\install\2cf5f20\commonappdatafolder\jetmedia\nativedesktopmediaservice\comdata.dat
%APPDATA%\jetmedia\nativedesktopmediaservice 3.6.0\install\2cf5f20\desktop_media_service.exe
%WINDIR%\installer\msia8ee.tmp
C:\config.msi\1070b1.rbs
%WINDIR%\installer\msiaf23.tmp
%WINDIR%\installer\msiad7c.tmp
%WINDIR%\installer\msiac24.tmp
%TEMP%\msi6cd6.tmp
%WINDIR%\installer\msi71b7.tmp
%WINDIR%\installer\msi7264.tmp
%WINDIR%\installer\msi72b3.tmp
%WINDIR%\installer\msi860d.tmp
%WINDIR%\installer\msi888f.tmp
%WINDIR%\installer\msi88de.tmp
%WINDIR%\installer\msi891d.tmp
%TEMP%\msi6b7d.tmp
%WINDIR%\installer\msi8ebc.tmp
%WINDIR%\installer\msi9248.tmp
%WINDIR%\installer\msia8ff.tmp
%WINDIR%\installer\msia91f.tmp
%WINDIR%\installer\msia9cc.tmp
%WINDIR%\installer\msiaa4a.tmp
%WINDIR%\installer\msiaa6a.tmp
%WINDIR%\installer\msiaa9a.tmp
%WINDIR%\installer\msiab66.tmp
%WINDIR%\installer\msi9218.tmp
%APPDATA%\jetmedia\nativedesktopmediaservice 3.6.0\install\2cf5f20\networkdesktopmedia.msi
%APPDATA%\jetmedia\nativedesktopmediaservice 3.6.0\install\2cf5f20\watchdog.exe
Deletes itself.
Network activity
TCP
HTTP GET requests
http://in###don.club/?ch#########################################################################################################################################################################...
http://ip###i.com:80/json
http://xf###cte.com/npcomdata.dat
HTTP POST requests
http://tm#.###tdataxew.info/
http://tm#.####tincoandhar.info/
http://nt###est.com/tickets
http://ss#.####tincoandhar.info/
http://in##.##stdataxew.info/
http://kr####q.com:40000/tickets
http://mr##wic.com/tickets
http://in##.###ntincoandhar.info/
http://sc#.####tincoandhar.info/
UDP
DNS ASK tm#.###tdataxew.info
DNS ASK in##.##stdataxew.info
DNS ASK in###don.club
DNS ASK do#####dhostnow.info
DNS ASK do#####dnowportal.info
DNS ASK tm#.####tincoandhar.info
DNS ASK nt###est.com
DNS ASK in##.###ntincoandhar.info
DNS ASK ip##pi.com
DNS ASK ex##ple.com
DNS ASK sc#.####tincoandhar.info
DNS ASK ss#.####tincoandhar.info
DNS ASK kr##wiq.com
DNS ASK mr##wic.com
DNS ASK xf###cte.com
Miscellaneous
Creates and executes the following
'%TEMP%\is-a79h1.tmp\<File name>.tmp' /SL5="$90246,1114695,121344,<Full path to file>"
'%TEMP%\is-j4sl2.tmp\<File name>.tmp' /SL5="$800DE,1114695,121344,<Full path to file>" /VERYSILENT /SL5="$90246,1114695,121344,<Full path to file>"
'%TEMP%\{70aa3717-1e52-e9c7-aafe-fdf7f2d641c3}\pse.exe' /efd= /efl= /efd= /efd= /efd= /efd=
'%TEMP%\{70aa3717-1e52-e9c7-aafe-fdf7f2d641c3}\na.exe' /QN VENDOR_ID="fdx"
'%WINDIR%\installer\msi72b3.tmp' /p="%TEMP%\{70AA3717-1E52-E9C7-AAFE-FDF7F2D641C3}\na.exe" /p="%APPDATA%\Jetmedia\NativeDesktopMediaService 3.6.0\install\2CF5F20\NetworkDesktopMedia.msi" /p="%ProgramFiles(x86)%\Jetmedia\Native...
'%TEMP%\1b896a1019e1c419e6ac.msi72b3.tmp' $$Psu5-gELsEzYovIWZuzrTPR1lKZ60LNNfo4ybtEliq1Oix9_d9NM1dV_YSKGXrYKl70sPX9TouSqzCOphkuw1fCCxRdAfqP3ZAvx-Ycmtl2FjGWbwT8duLVZEYNSEu8EB_1RoCQYfl3i4iCBUnxVVHgiiXkPX5chZ-bOtEfAGlkqbhehl3T9X1VNh7DOkU5...
'%ProgramFiles(x86)%\jetmedia\nativedesktopmediaservice\desktop_media_service.exe' --service
'%TEMP%\{70aa3717-1e52-e9c7-aafe-fdf7f2d641c3}\pse.exe' /efd= /efl= /efd= /efd= /efd= /efd=' (with hidden window)
'%TEMP%\{70aa3717-1e52-e9c7-aafe-fdf7f2d641c3}\na.exe' /QN VENDOR_ID="fdx"' (with hidden window)
Executes the following
'%WINDIR%\syswow64\regsvr32.exe' "%TEMP%\is-P4P6M.tmp\ijru.dll" /i /n /s:"$$y_aaaq3zrgBazNjhmK2LMEkdxIRjhju96UMswmQZ30uxGxgfgL44NNQ3YV4snIje_ISJtvC8dcxeKVDFEHKXCVuBqMGyUf4zziiiv-CxOZqIkPAnnT901pf-cSF8nmTU2X3glCk9ikbbX8s4jNLTyb...
'%WINDIR%\syswow64\regsvr32.exe' "%TEMP%\is-8JFC1.tmp\ijru.dll" /i /n /s:"$$YqY-xRXDbnU5dwBPIQSuqfDmUkqPowm4P0ZGBeejL983Pq3UeNXNNK-NiJaykbCZwUo1afIBfZDONzE-8CC8ZNDR9kiuvPCeVY_LPh-gO-ABuZWG0VLm0ipY7mu2UuEl-EM8_ZM8F8w4J8firh3XRx...
'%WINDIR%\syswow64\msiexec.exe' -Embedding 81A089C1D442DDBA6F85BB287D1B12DC C
'%WINDIR%\syswow64\msiexec.exe' /i "%APPDATA%\Jetmedia\NativeDesktopMediaService 3.6.0\install\2CF5F20\NetworkDesktopMedia.msi" /QN VENDOR_ID=fdx AI_SETUPEXEPATH=%TEMP%\{70AA3717-1E52-E9C7-AAFE-FDF7F2D641C3}\na.exe SETUPEXEDI...
'%WINDIR%\syswow64\msiexec.exe' -Embedding A04305DF571C20F1F454465122DCCE96
'%WINDIR%\syswow64\msiexec.exe' -Embedding A5FC8EA79F912C850349CA9F3417D9F3 M Global\MSI0000
'%WINDIR%\syswow64\cmd.exe' /c for /l %x in (1, 1, 2) do del /Q "<Full path to file>" & timeout /t 5
'%WINDIR%\syswow64\cmd.exe' /c for /l %x in (1, 1, 2) do rmdir /S /Q "%TEMP%\is-8JFC1.tmp" & timeout /t 5
'%WINDIR%\syswow64\cmd.exe' /c for /l %x in (1, 1, 2) do rmdir /S /Q "%TEMP%\is-P4P6M.tmp" & timeout /t 5
'%WINDIR%\syswow64\timeout.exe' /t 5
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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