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Trojan.Carberp.2622

Added to the Dr.Web virus database: 2020-11-27

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'spoolsv.exe' = '"%APPDATA%\Microsoft\Windows\spoolsv.exe" -start'
Creates the following files on removable media
  • <Drive name for removable media>:\delete.avi
  • <Drive name for removable media>:\stoc13_ml_quoc_le.pptx
  • <Drive name for removable media>:\dotnetfx45_full_setup.exe
  • <Drive name for removable media>:\utorrent.exe
  • <Drive name for removable media>:\winmine.exe
  • <Drive name for removable media>:\calc.exe
  • <Drive name for removable media>:\tcm851ax32.exe
  • <Drive name for removable media>:\wrar520.exe
  • <Drive name for removable media>:\february_catalogue__2015.doc
  • <Drive name for removable media>:\hanni_umami_chapter.doc
  • <Drive name for removable media>:\middaugh_keynote.pptx
  • <Drive name for removable media>:\testee.cer
  • <Drive name for removable media>:\contoso_1.cer
  • <Drive name for removable media>:\default.bmp
  • <Drive name for removable media>:\dashborder_120.bmp
  • <Drive name for removable media>:\dialmap.bmp
  • <Drive name for removable media>:\tileimage.bmp
  • <Drive name for removable media>:\dial.bmp
  • <Drive name for removable media>:\toolbar.bmp
  • <Drive name for removable media>:\split.avi
  • <Drive name for removable media>:\join.avi
  • <Drive name for removable media>:\pmd.cer
  • <Drive name for removable media>:\indogerman2010.pptx
Malicious functions
Injects code into
the following system processes:
  • %WINDIR%\syswow64\notepad.exe
Searches for registry branches where third party applications store passwords
  • [<HKCU>\Software\Martin Prikryl\WinSCP 2\Sessions]
Reads files which store third party applications passwords
  • %ProgramFiles(x86)%\steam\config\config.vdf
  • %ProgramFiles(x86)%\steam\config\dialogconfig.vdf
  • %LOCALAPPDATA%\google\chrome\user data\default\cookies
  • %LOCALAPPDATA%\google\chrome\user data\default\login data
  • %LOCALAPPDATA%\google\chrome\user data\default\web data
  • %APPDATA%\opera software\opera stable\login data
Modifies file system
Creates the following files
  • %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
  • %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
  • %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
  • %LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
  • %TEMP%\gekkacdk.exe
  • %TEMP%\0a5efe05.zeppelin
  • %APPDATA%\microsoft\windows\spoolsv.exe
  • %TEMP%\5f54ef9a.zeppelin
Deletes the following files
  • %TEMP%\0a5efe05.zeppelin
  • %TEMP%\gekkacdk.exe
  • %TEMP%\5f54ef9a.zeppelin
Changes user data files extensions (Trojan.Encoder).
Network activity
TCP
HTTP GET requests
  • http://a3####7.mcdir.ru/zeppelin.exe
  • http://ge###tool.com/
  • http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt
  • http://ip###ger.org/1D2XM6.tgz
  • http://cr#.#ectigo.com/SectigoRSADomainValidationSecureServerCA.crt
HTTP POST requests
  • http://45.##.200.120/cfg/
  • http://45.##.200.120/log/
  • http://45.##.200.120/loader/complete/
  • 'ge###tool.com':443
  • 'ip###ger.org':443
  • UDP
    • DNS ASK a3####7.mcdir.ru
    • DNS ASK ge###tool.com
    • DNS ASK ge###tatool.com
    • DNS ASK microsoft.com
    • DNS ASK ip###ger.org
    • DNS ASK cr#.#ectigo.com
    Miscellaneous
    Creates and executes the following
    • '%TEMP%\gekkacdk.exe'
    • '%APPDATA%\microsoft\windows\spoolsv.exe' -start
    • '%APPDATA%\microsoft\windows\spoolsv.exe' -agent 0
    • '%APPDATA%\microsoft\windows\spoolsv.exe' -agent 1
    • '%APPDATA%\microsoft\windows\spoolsv.exe' -agent 2
    • '%TEMP%\gekkacdk.exe' ' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /C wmic shadowcopy delete' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} recoveryenabled no' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} bootstatuspolicy ignoreallfailures' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete catalog -quiet' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /C vssadmin delete shadows /all /quiet' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /C %TEMP%\~temp001.bat' (with hidden window)
    Executes the following
    • '%WINDIR%\syswow64\notepad.exe'
    • '%WINDIR%\syswow64\cmd.exe' /C wmic shadowcopy delete
    • '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} recoveryenabled no
    • '%WINDIR%\syswow64\cmd.exe' /C bcdedit /set {default} bootstatuspolicy ignoreallfailures
    • '%WINDIR%\syswow64\cmd.exe' /C wbadmin delete catalog -quiet
    • '%WINDIR%\syswow64\cmd.exe' /C vssadmin delete shadows /all /quiet
    • '%WINDIR%\syswow64\cmd.exe' /C %TEMP%\~temp001.bat

    Curing recommendations

    1. 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.
    2. 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.

    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

    1. 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.
    2. 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

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