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Trojan.DownLoader30.28419
Added to the Dr.Web virus database:
2019-10-18
Virus description added:
2019-10-20
Technical Information
To ensure autorun and distribution
Creates the following services
[<HKLM>\System\CurrentControlSet\Services\xzagoxk] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\xzagoxk] 'ImagePath' = '%WINDIR%\SysWOW64\xzagoxk\qcbpaksm.exe /d"<Full path to file>"'
[<HKLM>\SYSTEM\CurrentControlSet\services\xzagoxk] 'ImagePath' = '%WINDIR%\SysWOW64\xzagoxk\qcbpaksm.exe'
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion with following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '%WINDIR%\SysWOW64\xzagoxk' = '00000000'
Executes the following
'%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul
Injects code into
the following system processes:
%WINDIR%\syswow64\svchost.exe
Modifies file system
Creates the following files
%TEMP%\qcbpaksm.exe
%WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
from %TEMP%\qcbpaksm.exe to %WINDIR%\syswow64\xzagoxk\qcbpaksm.exe
Deletes itself.
Network activity
TCP
HTTP GET requests
http://ap#.##-cy.ru:35000/
http://89.##.105.12/ip.shtml
UDP
DNS ASK mi##########m.mail.protection.outlook.com
DNS ASK ya##o.es
DNS ASK mx#######a02.gslb.pphosted.com
DNS ASK ge.com
DNS ASK av##tis.com
DNS ASK pa##ora.be
DNS ASK mx#.##lenet-ops.be
DNS ASK ap#.#r-cy.ru
DNS ASK te##net.be
DNS ASK mx##.#-online.de
DNS ASK t-##line.de
DNS ASK mx####.##il.gm0.yahoodns.net
DNS ASK ne###ape.net
DNS ASK sm####n.libero.it
DNS ASK li##ro.it
DNS ASK ya##o.com
DNS ASK mx###03.web.de
DNS ASK we#.de
DNS ASK go###e.co.uk
DNS ASK google.com
DNS ASK bt###nworld.com
DNS ASK ta###banka.sk
DNS ASK mx#########st-2.prod.hydra.sophos.com
DNS ASK sm###.tatrabanka.sk
DNS ASK bu###tech.com
DNS ASK mx.####.seg-egs.gc.ca
DNS ASK hc##c.gc.ca
DNS ASK ma##.#iwedorren.se
DNS ASK ji###orren.se
DNS ASK sm##.artech.se
DNS ASK ar##ch.se
DNS ASK sm##.renault.fr
DNS ASK re##ult.com
DNS ASK aspmx.l.google.com
DNS ASK eq##fax.com
DNS ASK sm##.##b.shawcable.net
DNS ASK sh#w.ca
DNS ASK ya##o.co.uk
DNS ASK d1######.#ss.barracudanetworks.com
DNS ASK me##are.com
DNS ASK td##dsl.dk
DNS ASK mx#######702.gslb.pphosted.com
DNS ASK eu.#ony.com
DNS ASK sm####n.orange.fr
DNS ASK mx.##.#topenworld.com
DNS ASK wa##doo.fr
DNS ASK co##ast.net
DNS ASK qu###ilver.com
DNS ASK mt##.##0.yahoodns.net
DNS ASK ya###.com.au
DNS ASK ma###.natca.net
DNS ASK bb#.#atca.net
DNS ASK mx#######701.gslb.pphosted.com
DNS ASK 19#.###.#11.95.cbl.abuseat.org
DNS ASK ru####lsuper.com
DNS ASK alt2.gmail-smtp-in.l.google.com
DNS ASK 19#.###.##1.95.sbl-xbl.spamhaus.org
DNS ASK gm##l.com
DNS ASK de########.mtu-friedrichshafen.com
DNS ASK 19#.###.#11.95.zen.spamhaus.org
DNS ASK mt###nline.com
DNS ASK 19#.###.#11.95.bl.spamcop.net
DNS ASK ho#########.olc.protection.outlook.com
DNS ASK 19#.###.#11.95.dnsbl.sorbs.net
DNS ASK ho##ail.com
DNS ASK 19#.###.211.95.in-addr.arpa
DNS ASK mx#######801.gslb.pphosted.com
DNS ASK mx#.#omcast.net
DNS ASK ho##ail.fr
DNS ASK ma##.###rinterestsonly.com
DNS ASK mx.##xmail.com
DNS ASK co####ternet.com
DNS ASK mx##.#aramail.com
DNS ASK ca###ail.com
DNS ASK mx.##.#tinternet.com
DNS ASK bt###ernet.com
DNS ASK ma##.tagtmi.com
DNS ASK ta##mi.com
DNS ASK mx.#p.pl
DNS ASK wp.pl
DNS ASK po###.tele.dk
DNS ASK fp##.mail.dk
DNS ASK ma##.tele.dk
DNS ASK mx###.##il.am0.yahoodns.net
DNS ASK ya##o.de
DNS ASK cl######.us.messagelabs.com
DNS ASK ma###arie.com
DNS ASK mx###c.lmig.com
DNS ASK li###tyiu.com
DNS ASK eu#.###.#rotection.outlook.com
DNS ASK ya##o.co.nz
Miscellaneous
Creates and executes the following
'%WINDIR%\syswow64\xzagoxk\qcbpaksm.exe' /d"<Full path to file>"
'%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\xzagoxk\' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\qcbpaksm.exe" %WINDIR%\SysWOW64\xzagoxk\' (with hidden window)
'%WINDIR%\syswow64\sc.exe' create xzagoxk binPath= "%WINDIR%\SysWOW64\xzagoxk\qcbpaksm.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
'%WINDIR%\syswow64\sc.exe' description xzagoxk "wifi internet conection"' (with hidden window)
'%WINDIR%\syswow64\sc.exe' start xzagoxk' (with hidden window)
'%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul' (with hidden window)
Executes the following
'%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\xzagoxk\
'%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\qcbpaksm.exe" %WINDIR%\SysWOW64\xzagoxk\
'%WINDIR%\syswow64\sc.exe' create xzagoxk binPath= "%WINDIR%\SysWOW64\xzagoxk\qcbpaksm.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
'%WINDIR%\syswow64\sc.exe' description xzagoxk "wifi internet conection"
'%WINDIR%\syswow64\sc.exe' start xzagoxk
'%WINDIR%\syswow64\svchost.exe'
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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