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Dr.Web vxCube

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Exploit.Siggen3.19701

Aggiunto al database dei virus Dr.Web: 2021-08-10

La descrizione è stata aggiunta: 2021-08-12

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'gWrt' = '"%APPDATA%\gWrt.exe"'

Malicious functions

Creates and executes the following (exploit)

'%APPDATA%\drol.exe'

Injects code into

the following user processes:

drol.exe

Searches for registry branches where third party applications store passwords

[<HKCU>\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts]
[<HKLM>\Software\Wow6432Node\SoftX.org\FTPClient\Sites]
[<HKLM>\Software\Wow6432Node\FTPClient\Sites]
[<HKCU>\Software\SoftX.org\FTPClient\Sites]
[<HKCU>\Software\FTPClient\Sites]
[<HKCU>\Software\Cryer\WebSitePublisher]
[<HKCU>\Software\Sota\FFFTP\Options]
[<HKCU>\Software\NCH Software\ClassicFTP\FTPAccounts]
[<HKCU>\Software\Martin Prikryl\WinSCP 2\Sessions]
[<HKCU>\Software\FTPWare\CoreFTP\Sites]
[<HKCU>\Software\Yahoo\pager]
[<HKCU>\Software\IMVU\password]
[<HKCU>\Software\IMVU\username]
[<HKCU>\Software\Beyluxe Messenger]
[<HKCU>\Software\Paltalk]
[<HKCU>\Software\Google\Google Talk\Accounts]
[<HKCU>\Software\Microsoft\Windows Live Mail]
[<HKCU>\Software\Microsoft\Internet Account Manager\Accounts]
[<HKLM>\Software\ORL\WinVNC3]
[<HKCU>\Software\ORL\WinVNC3]

Reads files which store third party applications passwords

%APPDATA%\opera software\opera stable\login data
%LOCALAPPDATA%\google\chrome\user data\default\login data

Modifies file system

Creates the following files

%APPDATA%\drol.exe
%TEMP%\tmp_xa_br_keyfile_26069
%TEMP%\login data
%TEMP%\tmp_xa_br_keyfile_6009
%TEMP%\unknown.dll
%TEMP%\external\componentsext\vcruntime140.dll
%TEMP%\external\componentsext\softokn3.dll
%TEMP%\external\componentsext\nss3.dll
%TEMP%\external\componentsext\msvcp140.dll
%TEMP%\external\componentsext\mozglue.dll
%TEMP%\external\componentsext\freebl3.dll
%TEMP%\external\componentsext\api-ms-win-crt-utility-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-time-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-string-l1-1-0.dll
%TEMP%\unk.xml
%TEMP%\external\componentsext\api-ms-win-crt-stdio-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-multibyte-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-math-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-locale-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-heap-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-filesystem-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-environment-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-convert-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-conio-l1-1-0_not.dll
%TEMP%\license.xenarmor
%LOCALAPPDATA%\100cce3e\plg\c039198306863035fea360c1237d8088.enc
%TEMP%\qigkkhpnjkwug7z5.exe
%TEMP%\drol.exe
%APPDATA%\gwrt.exe
%TEMP%\external\componentsext\api-ms-win-crt-runtime-l1-1-0.dll
%LOCALAPPDATA%\100cce3e\plg\xyfoekgc.json

Sets the 'hidden' attribute to the following files

%TEMP%\license.xenarmor
%TEMP%\unknown.dll
%TEMP%\unk.xml
%LOCALAPPDATA%\100cce3e\plg\xyfoekgc.json

Deletes the following files

%TEMP%\license.xenarmor
%TEMP%\external\componentsext\softokn3.dll
%TEMP%\external\componentsext\nss3.dll
%TEMP%\external\componentsext\msvcp140.dll
%TEMP%\external\componentsext\mozglue.dll
%TEMP%\external\componentsext\freebl3.dll
%TEMP%\external\componentsext\api-ms-win-crt-utility-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-time-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-string-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-stdio-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-runtime-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-multibyte-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-math-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-locale-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-heap-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-filesystem-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-environment-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-convert-l1-1-0.dll
%TEMP%\external\componentsext\api-ms-win-crt-conio-l1-1-0_not.dll
%TEMP%\unk.xml
%TEMP%\unknown.dll
%TEMP%\tmp_xa_br_keyfile_26069
%TEMP%\login data
%TEMP%\tmp_xa_br_keyfile_6009
%TEMP%\external\componentsext\vcruntime140.dll
%LOCALAPPDATA%\100cce3e\plg\xyfoekgc.json

Substitutes the following files

%TEMP%\license.xenarmor
%TEMP%\login data

Network activity

Connects to

'yz.###eomarket.eu':4444
'yz.###eomarket.eu':1975
'dd##.data.hu':80
'xe###mor.com':80

TCP

HTTP GET requests

http://18#.###.161.248:4444/ConsoleApp17.exe

Other

'yz.###eomarket.eu':1975

UDP

DNS ASK dn#.google
DNS ASK dd##.data.hu
DNS ASK xe###mor.com

Miscellaneous

Creates and executes the following

'%TEMP%\drol.exe'
'%TEMP%\qigkkhpnjkwug7z5.exe'
'%TEMP%\drol.exe' -a "%LOCALAPPDATA%\100cce3e\plg\xYFoEKgC.json"
'%TEMP%\drol.exe' -a "%TEMP%\unk.xml"
'%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' Test-Connection 8.8.8.8' (with hidden window)
'%TEMP%\qigkkhpnjkwug7z5.exe' ' (with hidden window)

Executes the following

'%CommonProgramFiles%\microsoft shared\equation\eqnedt32.exe' -Embedding
'%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' Test-Connection 8.8.8.8

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.

Download Dr.Web

Download by serial number

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

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.

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.

Find out more about Dr.Web for Android

Free trial

14 days

Get it on Google Play