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Trojan.Rmnet.19

Added to the Dr.Web virus database: 2012-10-12

Virus description added:

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
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 the following features:
  • User Account Control (UAC)
  • Windows Security Center
Creates and executes the following:
  • %TEMP%\ekdbmtyq.exe admin
  • %TEMP%\ekdbmtyq.exe elevate
Executes the following:
  • <SYSTEM32>\svchost.exe
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:
  • %TEMP%\tqgnnosw.sys
Network activity:
Connects to:
  • 'tf###oingy.com':443
  • 'ji####yxjibyd.com':443
  • 'ht#####rhtchwlhwklf.com':443
  • '74.##5.232.51':80
  • 'ou###vkvn.com':443
  • 'sn#####gcwgaafbtqkt.com':443
  • 'ti####axvmhsxtk.com':443
  • 'uk####gdbdkd.com':443
  • 'sw###olov.com':443
  • 'cx#####efolgkokdqy.com':443
  • 'kh#####kbwhfdiufhaj.com':443
UDP:
  • DNS ASK ya###fejdxs.com
  • DNS ASK pg###yurf.com
  • DNS ASK ye#####bbprvybwqn.com
  • DNS ASK pu#####fuxgquhguye.com
  • DNS ASK oc###ffwnj.com
  • DNS ASK tf####kcgigiey.com
  • DNS ASK ld####dyyxacm.com
  • DNS ASK xw####iqjdsxk.com
  • DNS ASK ku###xnntsk.com
  • DNS ASK pp####dwufrb.com
  • DNS ASK ls#####qxvmogvxifm.com
  • DNS ASK sp####davslss.com
  • DNS ASK sj###aml.com
  • DNS ASK hc###nlr.com
  • DNS ASK hn#####vhxvuoeuap.com
  • DNS ASK de###mdyvt.com
  • DNS ASK mf###hnjp.com
  • DNS ASK bx###oxw.com
  • DNS ASK cp#####hyrueqcyxnvo.com
  • DNS ASK gv###sip.com
  • DNS ASK jp####bipilmwsc.com
  • DNS ASK ga###slj.com
  • DNS ASK nc#####piawmchfylsy.com
  • DNS ASK tf###oingy.com
  • DNS ASK ji####yxjibyd.com
  • DNS ASK ht#####rhtchwlhwklf.com
  • DNS ASK google.com
  • DNS ASK ou###vkvn.com
  • DNS ASK sn#####gcwgaafbtqkt.com
  • DNS ASK ti####axvmhsxtk.com
  • DNS ASK uk####gdbdkd.com
  • DNS ASK sw###olov.com
  • DNS ASK cx#####efolgkokdqy.com
  • DNS ASK kh#####kbwhfdiufhaj.com
  • DNS ASK mu####pvxvrq.com
  • DNS ASK go#####vwvgqlretxd.com
  • DNS ASK em#####wjuvvsvrwj.com
  • DNS ASK vo###yqdinl.com
  • DNS ASK du#####abkuappgqxhp.com
  • DNS ASK vw####yyutodtr.com
  • DNS ASK ca###lnlrou.com
  • DNS ASK ub####qslhqyy.com
  • DNS ASK qb###pyyooh.com
  • DNS ASK nv###npx.com
  • DNS ASK vr####jxorlyen.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''

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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Download by serial number

Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

Download Dr.Web

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.

Find out more about Dr.Web for Android