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Trojan.Inject4.8687

Aggiunto al database dei virus Dr.Web: 2021-03-13

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKLM>\SYSTEM\CurrentControlSet\Control\Lsa] 'Security Packages' = '{6b,00,65,00,72,00,62,00,65,00,72,00,6f,00,73,00,00,00,6d,00,73,00,76,00,31,00,5f,00,30,00,00,00,73,00,63,00,68,00,61,00,6e,...
  • [<HKLM>\SYSTEM\CurrentControlSet\Control\SecurityProviders] 'SecurityProviders' = 'msapsspc.dll, schannel.dll, digest.dll, msnsspc.dll, credssp.dll'
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Magnify.exe] 'Debugger' = 'taskmgr.exe'
Malicious functions
To complicate detection of its presence in the operating system,
blocks the following features:
  • User Account Control (UAC)
Executes the following
  • '<SYSTEM32>\netsh.exe' firewall set service remoteadmin enable
  • '<SYSTEM32>\netsh.exe' firewall set service remotedesktop enable
Injects code into
the following system processes:
  • <SYSTEM32>\svchost.exe
Miscellaneous
Creates and executes the following
  • '<SYSTEM32>\cmd.exe' /c sc start TermService' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\currentcontrolset\control\terminal server" /f /v fDenyTSConnections /t REG_DWORD /d 0' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v MaxIdleTime /t REG_DWORD /d "00000000"' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v MaxDisconnectionTime /t REG_DWORD /d "00000000"' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /f /v SecurityLayer /t REG_DWORD /d "00000001"' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v UserAuthentication /t REG_DWORD /d "00000000"' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v fAllowUnsolicited /t REG_DWORD /d "00000001"' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v fDenyTSConnections /t REG_DWORD /d "00000000"' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c netsh firewall set service remoteadmin enable' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Magnify.exe" /f /v Debugger /t REG_SZ /d "taskmgr.exe"' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v "MaxDisconnectionTime" REG_DWORD /d 0x0 /f' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v "MaxConnectionTime" /t REG_DWORD /d 0x0 /f' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server" /v "AllowTSConnections" /t REG_DWORD /d 0x1 /f' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders" /f /v SecurityProviders /t REG_SZ /d "msapsspc.dll, schannel.dll, digest.dll, msnsspc.dll, credssp.dll"' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\WDigest" /f /v UseLogonCredential /t REG_DWORD /d 0x01' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /f /v "Security Packages" /t REG_BINARY /d "6b00650072006200650072006f00730000006d007300760031005f003000000073006300680061006e006e0065006c...' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v "MaxIdleTime" /t REG_DWORD /d 0x0 /f' (with hidden window)
  • '<SYSTEM32>\cmd.exe' /c netsh firewall set service remotedesktop enable' (with hidden window)
Executes the following
  • '<SYSTEM32>\cmd.exe' /c sc start TermService
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v fDenyTSConnections /t REG_DWORD /d "00000000"
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v fAllowUnsolicited /t REG_DWORD /d "00000001"
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v fAllowUnsolicited /t REG_DWORD /d "00000001"
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v UserAuthentication /t REG_DWORD /d "00000000"
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v UserAuthentication /t REG_DWORD /d "00000000"
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Magnify.exe" /f /v Debugger /t REG_SZ /d "taskmgr.exe"
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v fDenyTSConnections /t REG_DWORD /d "00000000"
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /f /v SecurityLayer /t REG_DWORD /d "00000001"
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v MaxDisconnectionTime /t REG_DWORD /d "00000000"
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v MaxIdleTime /t REG_DWORD /d "00000000"
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v MaxIdleTime /t REG_DWORD /d "00000000"
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\currentcontrolset\control\terminal server" /f /v fDenyTSConnections /t REG_DWORD /d 0
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SYSTEM\currentcontrolset\control\terminal server" /f /v fDenyTSConnections /t REG_DWORD /d 0
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /f /v SecurityLayer /t REG_DWORD /d "00000001"
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /f /v MaxDisconnectionTime /t REG_DWORD /d "00000000"
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Magnify.exe" /f /v Debugger /t REG_SZ /d "taskmgr.exe"
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v "MaxIdleTime" /t REG_DWORD /d 0x0 /f
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v "MaxIdleTime" /t REG_DWORD /d 0x0 /f
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /f /v "Security Packages" /t REG_BINARY /d "6b00650072006200650072006f00730000006d007300760031005f003000000073006300680061006e006e0065006c...
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SYSTEM\CurrentControlSet\Control\Lsa" /f /v "Security Packages" /t REG_BINARY /d "6b00650072006200650072006f00730000006d007300760031005f003000000073006300680061006e006e0065006c0000007...
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\WDigest" /f /v UseLogonCredential /t REG_DWORD /d 0x01
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders\WDigest" /f /v UseLogonCredential /t REG_DWORD /d 0x01
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders" /f /v SecurityProviders /t REG_SZ /d "msapsspc.dll, schannel.dll, digest.dll, msnsspc.dll, credssp.dll"
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SYSTEM\CurrentControlSet\Control\SecurityProviders" /f /v SecurityProviders /t REG_SZ /d "msapsspc.dll, schannel.dll, digest.dll, msnsspc.dll, credssp.dll"
  • '<SYSTEM32>\sc.exe' start TermService
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server" /v "AllowTSConnections" /t REG_DWORD /d 0x1 /f
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server" /v "AllowTSConnections" /t REG_DWORD /d 0x1 /f
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v "MaxConnectionTime" /t REG_DWORD /d 0x0 /f
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v "MaxConnectionTime" /t REG_DWORD /d 0x0 /f
  • '<SYSTEM32>\cmd.exe' /c REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v "MaxDisconnectionTime" REG_DWORD /d 0x0 /f
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp" /v "MaxDisconnectionTime" REG_DWORD /d 0x0 /f
  • '<SYSTEM32>\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v EnableLUA /t REG_DWORD /d 0 /f
  • '<SYSTEM32>\cmd.exe' /c netsh firewall set service remoteadmin enable
  • '<SYSTEM32>\cmd.exe' /c netsh firewall set service remotedesktop enable

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

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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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  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.

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