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Trojan.DownLoader30.25450
Added to the Dr.Web virus database:
2019-10-01
Virus description added:
2019-10-02
Technical Information
To ensure autorun and distribution
Modifies the following registry keys
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce] '{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}' = '"%PROGRAMDATA%\Package Cache\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\vcredist_x...
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce] '{01db25f3-1b76-4d97-88c8-1c90634d88fb}' = '"%PROGRAMDATA%\Package Cache\{01db25f3-1b76-4d97-88c8-1c90634d88fb}\vcredist_x...
Creates or modifies the following files
<SYSTEM32>\tasks\google update
Malicious functions
Executes the following
'%WINDIR%\syswow64\taskkill.exe' /f /im AppsUpd4ter.exe
Modifies file system
Creates the following files
%TEMP%\updinstaller.exe
%TEMP%\{01db25f3-1b76-4d97-88c8-1c90634d88fb}\.ba1\license.rtf
%TEMP%\{01db25f3-1b76-4d97-88c8-1c90634d88fb}\.ba1\logo.png
%TEMP%\{01db25f3-1b76-4d97-88c8-1c90634d88fb}\.ba1\thm.wxl
%TEMP%\{01db25f3-1b76-4d97-88c8-1c90634d88fb}\.ba1\thm.xml
%TEMP%\{01db25f3-1b76-4d97-88c8-1c90634d88fb}\.ba1\wixstdba.dll
%TEMP%\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\.be\vcredist_x86.exe
%TEMP%\dd_vcredist_x86_20190930030146.log
%TEMP%\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\.ba1\bootstrapperapplicationdata.xml
%TEMP%\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\.ba1\license.rtf
%TEMP%\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\.ba1\logo.png
%TEMP%\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\.ba1\thm.wxl
%TEMP%\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\.ba1\thm.xml
%TEMP%\{33d1fd90-4274-48a1-9bc1-97e33d9c2d6f}\.ba1\wixstdba.dll
%TEMP%\vcredist2012.exe
%WINDIR%\upr.exe
%TEMP%\upr.zip
%ProgramFiles(x86)%\softwareupdater\upd4tersrv.exe
%ProgramFiles(x86)%\softwareupdater\appsupd4ter.exe
%TEMP%\nsxd8b4.tmp\nsisunz.dll
%TEMP%\update.zip
%ProgramFiles(x86)%\softwareupdater\translations.xml
%ProgramFiles(x86)%\softwareupdater\interop.shell32.dll
%ProgramFiles(x86)%\softwareupdater\appsupd4ter.exe.config
%ProgramFiles(x86)%\softwareupdater\config.xml
%TEMP%\nsxd8b4.tmp\nsurl.dll
%TEMP%\nsxd8b4.tmp\system.dll
%TEMP%\nsxd8b4.tmp\nsexec.dll
%TEMP%\{01db25f3-1b76-4d97-88c8-1c90634d88fb}\.ba1\bootstrapperapplicationdata.xml
%TEMP%\dd_vcredist_x86_20190930030153.log
Network activity
TCP
HTTP GET requests
http://up#.#pd4ter.com/update/version
http://cd##.upsa1a.com/tgtudp.exe
http://cd##.upsa1a.com/tdtjpd.exe
http://up#.#pd4ter.com/software_stats/?ac########################################################################################################################################################...
http://up#.#pd4ter.com/installer_stats/?ac#######################################################################################################################################################...
http://up#.#pd4ter.com/update/update.zip
http://up#.#pd4ter.com/update/upr.zip
http://download.microsoft.com/download/1/6/B/16B06F60-3B20-4FF2-B699-5E9B7962F9AE/VSU_4/vcredist_x86.exe
UDP
DNS ASK up#.#pd4ter.com
DNS ASK cd##.upsa1a.com
DNS ASK download.microsoft.com
Miscellaneous
Searches for the following windows
ClassName: '' WindowName: ''
Creates and executes the following
'%TEMP%\updinstaller.exe' /partner=UPDATER /prot=1
'%TEMP%\vcredist2012.exe' /quiet
'%TEMP%\vcredist2012.exe' /quiet -burn.unelevated BurnPipe.{B738BD0A-29E7-4BF6-94F0-7319AD194C70} {A87CA293-4338-43D5-90C2-B6C174B26094} 1684
'%TEMP%\updinstaller.exe' /partner=UPDATER /prot=1' (with hidden window)
'%WINDIR%\syswow64\wbem\wmic.exe' /namespace:\\root\cimv2 PATH Win32_BIOS Get Version, SerialNumber /FORMAT:textvaluelist.xsl' (with hidden window)
'%WINDIR%\syswow64\wbem\wmic.exe' /namespace:\\root\cimv2 PATH Win32_ComputerSystem Get Model, Manufacturer /FORMAT:textvaluelist.xsl' (with hidden window)
'%WINDIR%\syswow64\sc.exe' stop SrvUpdater' (with hidden window)
'%WINDIR%\syswow64\sc.exe' delete SrvUpdater' (with hidden window)
'%WINDIR%\syswow64\taskkill.exe' /f /im AppsUpd4ter.exe' (with hidden window)
'%WINDIR%\syswow64\schtasks.exe' /Delete /tn "Google Update" /F' (with hidden window)
'%WINDIR%\syswow64\wbem\wmic.exe' /namespace:\\root\SecurityCenter2 PATH AntiVirusProduct Get displayName /FORMAT:textvaluelist.xsl' (with hidden window)
'%WINDIR%\syswow64\schtasks.exe' /Create /SC ONSTART /DELAY 0030:00 /TR "%WINDIR%\upr.exe" /tn "Google Update" /rl HIGHEST' (with hidden window)
'%TEMP%\vcredist2012.exe' /quiet' (with hidden window)
Executes the following
'%WINDIR%\syswow64\wbem\wmic.exe' /namespace:\\root\cimv2 PATH Win32_BIOS Get Version, SerialNumber /FORMAT:textvaluelist.xsl
'%WINDIR%\syswow64\wbem\wmic.exe' /namespace:\\root\cimv2 PATH Win32_ComputerSystem Get Model, Manufacturer /FORMAT:textvaluelist.xsl
'%WINDIR%\syswow64\sc.exe' stop SrvUpdater
'%WINDIR%\syswow64\sc.exe' delete SrvUpdater
'%WINDIR%\syswow64\schtasks.exe' /Delete /tn "Google Update" /F
'%WINDIR%\syswow64\wbem\wmic.exe' /namespace:\\root\SecurityCenter2 PATH AntiVirusProduct Get displayName /FORMAT:textvaluelist.xsl
'%WINDIR%\syswow64\schtasks.exe' /Create /SC ONSTART /DELAY 0030:00 /TR "%WINDIR%\upr.exe" /tn "Google Update" /rl HIGHEST
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
Descargue Dr.Web para Android
Gratis por 3 meses
Todos los componentes de protección
Renovación de la demo a través de AppGallery/Google Pay
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