Trojan.DownLoader21.65205

To ensure autorun and distribution:

Creates the following services:

[<HKLM>\SYSTEM\ControlSet001\Services\Windows Internet Name Service] 'Start' = '00000002'
[<HKLM>\SYSTEM\ControlSet001\Services\Windows Internet Name Service] 'ImagePath' = '"<SYSTEM32>\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service\wins.exe"'

Malicious functions:

Executes the following:

'%WINDIR%\Temp\5215' -u "<SYSTEM32>\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service\"
'<SYSTEM32>\cmd.exe' /c "%WINDIR%\TEMP\5234.bat"
'<SYSTEM32>\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service\wins.exe' /Service
'<SYSTEM32>\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service\wins.exe'

Modifies file system:

Creates the following files:

<SYSTEM32>\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service\queries-07.cache
<SYSTEM32>\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service\queries-03.cache
<SYSTEM32>\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service\known2_64.met
<SYSTEM32>\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service\queries-06.cache
<SYSTEM32>\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service\queries-02.cache
<SYSTEM32>\config\systemprofile\Local Settings\Application Data\Windows Internet Name Service\wins.exe
%WINDIR%\Temp\5234.bat
%WINDIR%\Temp\5215

Deletes the following files:

Network activity:

Connects to:

TCP:

HTTP GET requests:

UDP:

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.
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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.