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BackDoor.Termuser.307
Added to the Dr.Web virus database:
2016-09-26
Virus description added:
2016-09-26
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MciGkrwk' = '<LS_APPDATA>\eyqtaont\mcigkrwk.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,,<LS_APPDATA>\eyqtaont\mcigkrwk.exe'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\mcigkrwk.exe
Creates the following services:
[<HKLM>\SYSTEM\ControlSet001\Services\Micorsoft Windows Service] 'ImagePath' = '%TEMP%\tqgnnosw.sys'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
Windows Update
Windows Security Center
blocks the following features:
User Account Control (UAC)
Windows Security Center
Executes the following:
'<SYSTEM32>\cmd.exe' /C ""%TEMP%\ekdbmtyq.exe"" admin
'%TEMP%\ekdbmtyq.exe' admin
'<SYSTEM32>\svchost.exe'
'%TEMP%\ekdbmtyq.exe' elevate
Injects code into
the following system processes:
Hooks the following functions in System Service Descriptor Table (SSDT):
NtOpenKey, handler: tqgnnosw.sys
NtCreateKey, handler: tqgnnosw.sys
Modifies file system:
Creates the following files:
%TEMP%\tqgnnosw.sys
%WINDIR%\Temp\6decd52f
%WINDIR%\Temp\7fffffb1
<LS_APPDATA>\eyqtaont\mcigkrwk.exe
%TEMP%\ekdbmtyq.exe
%ALLUSERSPROFILE%\Application Data\bjdwbfvf.log
<LS_APPDATA>\niuydqre.log
Sets the 'hidden' attribute to the following files:
%HOMEPATH%\Start Menu\Programs\Startup\mcigkrwk.exe
Deletes the following files:
Network activity:
Connects to:
'cn####hkocdbps.com':443
're####ihcxhjj.com':443
'ex###wmpaed.com':443
'de###awup.com':443
'xx####yvyfvirbp.com':443
'yx####qdqbinut.com':443
'su###qbos.com':443
'74.##5.232.51':80
'jp#####afxjqvaga.com':443
'dq#####slaemuixxak.com':443
UDP:
DNS ASK wh####votltifj.com
DNS ASK fh#####cqnsserdoan.com
DNS ASK tn#####kojxrqhhjfvi.com
DNS ASK eq###dqtsyh.com
DNS ASK ut###pia.com
DNS ASK mb####pqvvtty.com
DNS ASK sd#####aetkjbaadd.com
DNS ASK au####symisdi.com
DNS ASK ry####dufabqc.com
DNS ASK mk####kmghlh.com
DNS ASK ws###amk.com
DNS ASK ig#####oluspcljm.com
DNS ASK en####mmosror.com
DNS ASK dg####uptldoiis.com
DNS ASK uc####pcjspuoe.com
DNS ASK mm####pdwagcg.com
DNS ASK dj####lvppmrjm.com
DNS ASK cb####hmpkyuub.com
DNS ASK wd#####ualkbapofta.com
DNS ASK yn#####yjkpgtugtwo.com
DNS ASK df####apewrb.com
DNS ASK hf###hngo.com
DNS ASK cc####sdggihuue.com
DNS ASK ux#####jptiupnhdafy.com
DNS ASK bing.com
DNS ASK vg#####tefriixwohwm.com
DNS ASK nv###jhhbmy.com
DNS ASK xl###wpy.com
DNS ASK xy#####kiyljsyimbwy.com
DNS ASK vp###cbo.com
DNS ASK vm####vmtfjtboi.com
DNS ASK qf###fuv.com
DNS ASK fp#####myglqqdly.com
DNS ASK gm###ugko.com
DNS ASK yt####ambvydsa.com
DNS ASK vr###vexnj.com
DNS ASK bk#####wwqjowkdcd.com
DNS ASK vu###mcu.com
DNS ASK ri#####toushpqkybt.com
DNS ASK bk###pgyhl.com
DNS ASK rg####lheqob.com
DNS ASK ot###ynobjj.com
DNS ASK hw#####jokhwxuplfr.com
DNS ASK sy####accqplk.com
DNS ASK ne####fbmkbvmf.com
DNS ASK sy###mrbjvj.com
DNS ASK lx#####lvufyvndmyy.com
DNS ASK nn#####cfrulntvgq.com
DNS ASK ge####wunfkxht.com
DNS ASK bb####wngdrw.com
DNS ASK uj#####sbistbokq.com
DNS ASK dq#####slaemuixxak.com
DNS ASK jp#####afxjqvaga.com
DNS ASK google.com
DNS ASK su###qbos.com
DNS ASK yx####qdqbinut.com
DNS ASK xx####yvyfvirbp.com
DNS ASK de###awup.com
DNS ASK ex###wmpaed.com
DNS ASK re####ihcxhjj.com
DNS ASK cn####hkocdbps.com
DNS ASK dx#####delyjvdjlrij.com
DNS ASK wn###idtgxt.com
DNS ASK mb###ftevl.com
DNS ASK pf###juoph.com
DNS ASK hw####qwgtlkvgu.com
DNS ASK ta#####kemwisnkgxuc.com
DNS ASK iv###axod.com
DNS ASK iw####qhwchjkjd.com
DNS ASK jh####wikxuuqh.com
DNS ASK aa#####tpewjjcxu.com
DNS ASK kr#####rymwnkddomby.com
DNS ASK oo####qkkpbpcd.com
DNS ASK bh####aalssy.com
DNS ASK gb###hgybo.com
DNS ASK kp#####dhnhieswds.com
DNS ASK py#####nrcinuankpaa.com
DNS ASK ea####wstvpc.com
DNS ASK ho####noafxlrj.com
DNS ASK yv####ohnvdb.com
DNS ASK cf####cdbeurv.com
DNS ASK tf####ljqmpeai.com
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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