BackDoor.Pushnik.15

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'srtserv' = '%ALLUSERSPROFILE%\Application Data\srtserv\<Virus name>.exe'

Malicious functions:

Creates and executes the following:

%ALLUSERSPROFILE%\Application Data\srtserv\<Virus name>.exe -wait

Executes the following:

%WINDIR%\explorer.exe <Current directory>\<Virus name>

Modifies file system :

Creates the following files:

%ALLUSERSPROFILE%\Application Data\srtserv\set.dat
%ALLUSERSPROFILE%\Application Data\srtserv\task.dat
%ALLUSERSPROFILE%\Application Data\srtserv\<Virus name>.exe
%ALLUSERSPROFILE%\Application Data\srtserv\sdata.dll

Sets the 'hidden' attribute to the following files:

%ALLUSERSPROFILE%\Application Data\srtserv\<Virus name>.exe

Deletes the following files:

%ALLUSERSPROFILE%\Application Data\srtserv\task.dat
%ALLUSERSPROFILE%\Application Data\srtserv\set.dat

Network activity:

Connects to:

'20###f42.eu.pn':80
'8b##48b9.ru':80
'89###d8d.h18.ru':80
'7a##a6ad.tk':80
'fa###629.org.ru':80
'ps##ergi.dk':80
'70###d78.net':80
'91###ec3.info':80
'st###nt-card.ru':80
'el##ant.ru':80
'de####63.110mb.com':80
'24##at.ru':80
'd8######.yourfreehosting.net':80
'a6###0eeucoz.ru':80
'ps###rbal.com':80
'f5####a0.110mb.com':80

TCP:

HTTP GET requests:

20###f42.eu.pn/setx.txt
8b##48b9.ru/setx.txt
89###d8d.h18.ru/setx.txt
7a##a6ad.tk/setx.txt
fa###629.org.ru/setx.txt
ps##ergi.dk/data/taskx.txt
70###d78.net/setx.txt
91###ec3.info/setx.txt
st###nt-card.ru/data/setx.txt
el##ant.ru/data/setx.txt
de####63.110mb.com/setx.txt
24##at.ru/data/setx.txt
d8######.yourfreehosting.net/setx.txt
a6###0eeucoz.ru/setx.txt
ps###rbal.com/data/setx.txt
f5####a0.110mb.com/setx.txt

HTTP POST requests:

ps##ergi.dk/data/stat.php

UDP:

DNS ASK 20###f42.eu.pn
DNS ASK 8b##48b9.ru
DNS ASK 89###d8d.h18.ru
DNS ASK 7a##a6ad.tk
DNS ASK fa###629.org.ru
DNS ASK ps##ergi.dk
DNS ASK 70###d78.net
DNS ASK 91###ec3.info
DNS ASK a6###0eeucoz.ru
DNS ASK st###nt-card.ru
DNS ASK 24##at.ru
DNS ASK de####63.110mb.com
DNS ASK el##ant.ru
DNS ASK d8######.yourfreehosting.net
DNS ASK f5####a0.110mb.com
DNS ASK ps###rbal.com
'<Private IP address>':1036

Miscellaneous:

Searches for the following windows:

ClassName: '' 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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Download by serial number

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

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Download Dr.Web

Download by serial number

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 Dr.Web

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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