Trojan.Rmnet.8

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MhrHcrji' = '<LS_APPDATA>\ebaurodr\mhrhcrji.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,,<LS_APPDATA>\ebaurodr\mhrhcrji.exe'

Creates or modifies the following files:

%HOMEPATH%\Start Menu\Programs\Startup\mhrhcrji.exe

Malicious functions:

Creates and executes the following:

%TEMP%\empchqloliakgweu.exe

Executes the following:

<SYSTEM32>\svchost.exe

Hooks the following functions in System Service Descriptor Table (SSDT):

NtOpenKey, handler: tssofofu.sys
NtCreateKey, handler: tssofofu.sys

Modifies file system :

Creates the following files:

%TEMP%\tssofofu.sys
%WINDIR%\Temp\6decd52f
%WINDIR%\Temp\7fffffb1
%TEMP%\empchqloliakgweu.exe
<LS_APPDATA>\niuydqre.log
<LS_APPDATA>\ebaurodr\mhrhcrji.exe

Sets the 'hidden' attribute to the following files:

%HOMEPATH%\Start Menu\Programs\Startup\mhrhcrji.exe

Deletes the following files:

%TEMP%\tssofofu.sys

Network activity:

Connects to:

'74.##5.232.51':80
'vl#####uppipkrvbsdy.com':443

UDP:

DNS ASK je###prgph.com
DNS ASK sl#####nkjenhwgpjl.com
DNS ASK pr###jpwvrl.com
DNS ASK ux#####vfnqcrfcf.com
DNS ASK ud###iovrov.com
DNS ASK se#####yopjhyhuw.com
DNS ASK vy####jnshtry.com
DNS ASK wg#####emnvhdrai.com
DNS ASK hx####dwbevww.com
DNS ASK aw#####qcherasntmin.com
DNS ASK hh#####rcvdrwpdvsck.com
DNS ASK kq#####gdtjxxcrvl.com
DNS ASK wx#####isqbmppqss.com
DNS ASK pp#####wnvtggifhbv.com
DNS ASK ed#####jcxyjqnjjodh.com
DNS ASK by####odqfdx.com
DNS ASK ma####tqkpuban.com
DNS ASK um#####mvsuiscitx.com
DNS ASK pv###rybufe.com
DNS ASK an####xpukbfmh.com
DNS ASK ms#####vylmullkqh.com
DNS ASK gq#####nntccmawclmq.com
DNS ASK oa###apl.com
DNS ASK ih###anyker.com
DNS ASK vx####rqkihafv.com
DNS ASK google.com
DNS ASK vl#####uppipkrvbsdy.com
DNS ASK qd#####ovjlfegdcepm.com
DNS ASK ou####cnuiudw.com
DNS ASK fs###tmti.com
DNS ASK qf###lxp.com
DNS ASK he####giddyamqq.com
DNS ASK jk#####lfhcwqkmai.com
DNS ASK cp#####gpibatpmswq.com
DNS ASK gk#####gjcauehgdjn.com
DNS ASK fi#####hserhycexjhf.com
'<Private IP address>':1045
'<Private IP address>':1040
'<Private IP address>':1044
'<Private IP address>':1038
'<Private IP address>':1042
'<Private IP address>':1046
'<Private IP address>':1037
'<Private IP address>':1043
'<Private IP address>':1036
'<Private IP address>':1039
'<Private IP address>':1041

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

Curing recommendations

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.

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

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Download on App Store

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

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Download by serial number

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.

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