Trojan.PWS.Multi.1158

Technical Information

Malicious functions:

Creates and executes the following:

'%TEMP%\169828.exe' (downloaded from the Internet)

Executes the following:

'<SYSTEM32>\cmd.exe' /c ""%TEMP%\ytk.bat" "<Full path to file>" "
'%TEMP%\169828.exe'

Searches for registry branches where third party applications store passwords:

[<HKCU>\SOFTWARE\NCH Software\Fling\Accounts]
[<HKCU>\Software\NCH Software\ClassicFTP\FTPAccounts]
[<HKLM>\Software\NCH Software\ClassicFTP\FTPAccounts]
[<HKLM>\Software\FTPClient\Sites]
[<HKCU>\Software\FTPClient\Sites]
[<HKLM>\SOFTWARE\NCH Software\Fling\Accounts]
[<HKCU>\Software\ExpanDrive\Sessions]
[<HKCU>\Software\FTPWare\COREFTP\Sites]
[<HKCU>\Software\CoffeeCup Software\Internet\Profiles]
[<HKCU>\Software\Sota\FFFTP\Options]
[<HKCU>\Software\Cryer\WebSitePublisher]
[<HKCU>\Software\VanDyke\SecureFX]
[<HKCU>\Software\FTP Explorer\FTP Explorer\Workspace\MFCToolBar-224]
[<HKCU>\Software\SoftX.org\FTPClient\Sites]
[<HKLM>\SOFTWARE\Robo-FTP 3.7\Scripts]
[<HKCU>\SOFTWARE\Robo-FTP 3.7\Scripts]
[<HKLM>\SOFTWARE\Robo-FTP 3.7\FTPServers]
[<HKLM>\Software\SimonTatham\PuTTY\Sessions]
[<HKCU>\Software\SimonTatham\PuTTY\Sessions]
[<HKCU>\Software\LinasFTP\Site Manager]
[<HKCU>\SOFTWARE\Robo-FTP 3.7\FTPServers]
[<HKLM>\Software\Martin Prikryl]
[<HKCU>\Software\Martin Prikryl]
[<HKLM>\Software\SoftX.org\FTPClient\Sites]
[<HKCU>\Software\FlashPeak\BlazeFtp\Settings]
[<HKLM>\Software\South River Technologies\WebDrive\Connections]
[<HKCU>\Software\South River Technologies\WebDrive\Connections]
[<HKCU>\Software\Sota\FFFTP]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 7 Professional\QCToolbar]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 7 Home\QCToolbar]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 6 Professional\QCToolbar]
[<HKCU>\Software\FlashFXP\3]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 8 Professional\QCToolbar]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 8 Home\QCToolbar]
[<HKCU>\Software\GlobalSCAPE\CuteFTP 6 Home\QCToolbar]
[<HKCU>\Software\Ghisler\Windows Commander]
[<HKCU>\Software\Far2\SavedDialogHistory\FTPHost]
[<HKCU>\Software\Far\SavedDialogHistory\FTPHost]
[<HKLM>\Software\Ghisler\Total Commander]
[<HKCU>\Software\Ghisler\Total Commander]
[<HKLM>\Software\Ghisler\Windows Commander]
[<HKCU>\Software\FlashFXP]
[<HKCU>\Software\BulletProof Software\BulletProof FTP Client\Options]
[<HKCU>\Software\BPFTP\Bullet Proof FTP\Options]
[<HKCU>\Software\BulletProof Software\BulletProof FTP Client\Main]
[<HKLM>\Software\TurboFTP]
[<HKCU>\Software\TurboFTP]
[<HKCU>\Software\BPFTP]
[<HKCU>\Software\BPFTP\Bullet Proof FTP\Main]
[<HKCU>\Software\FileZilla]
[<HKLM>\Software\FlashFXP]
[<HKLM>\Software\FlashFXP\3]
[<HKLM>\Software\FileZilla Client]
[<HKLM>\Software\FileZilla]
[<HKCU>\Software\FileZilla Client]

Modifies file system:

Creates the following files:

%TEMP%\ytk.bat
%TEMP%\169828.exe

Deletes itself.

Network activity:

Connects to:

'ba###-a-tm.com':80
'ft#.##isystems.com':80
'bi###buy.com':80
'au####ink.com.au':80
'co###pod.com':80
'co###pride.com':80
'ma###sale.com':80

TCP:

HTTP GET requests:

http://ft#.##isystems.com/_mmx14rf.exe
http://bi###buy.com/_mmx14rf.exe
http://au####ink.com.au/_mmx14rf.exe
http://ba###-a-tm.com/_mmx14rf.exe

HTTP POST requests:

http://ma###sale.com/pony/gate.php
http://co###pride.com/pony/gate.php
http://co###pod.com/pony/gate.php

UDP:

DNS ASK ba###-a-tm.com
DNS ASK ft#.##isystems.com
DNS ASK bi###buy.com
DNS ASK au####ink.com.au
DNS ASK co###pod.com
DNS ASK co###pride.com
DNS ASK ma###sale.com

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

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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.

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