Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- %WINDIR%\tasks\bxvtwajkkqezfxjvng.job
- <SYSTEM32>\tasks\bxvtwajkkqezfxjvng
- <SYSTEM32>\tasks\gcheezbac
Malicious functions
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Defender
adds antivirus exclusion with following registry keys:
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles(x86)%\BcCQMXwjU' = '0'
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles(x86)%\ITFcQRBGgRUn' = '0'
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles(x86)%\SwHdQyPSnQdU2' = '0'
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles(x86)%\mfOEuGwqkLFbC' = '0'
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ProgramFiles(x86)%\xRoHTrfYcfGreqCFIqR' = '0'
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%ALLUSERSPROFILE%\UakFvFPMbXVAWgVB' = '0'
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%LOCALAPPDATA%\Google\Chrome\User Data\Default\Extensions' = '0'
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%TEMP%\IvFVVHNigIyhAiWaa' = '0'
- [HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths] '%WINDIR%\Temp\QomKEDtaZauBMonw' = '0'
Modifies file system
Creates the following files
- %TEMP%\7zsa247.tmp\install.exe
- %TEMP%\7zsa247.tmp\appidtel.exe
- %TEMP%\7zsa247.tmp\bfsvc.exe
- %TEMP%\ivfvvhnigiyhaiwaa\edhrmuspjvyjnvl\ddsyvot.exe
- %ALLUSERSPROFILE%\microsoft\crypto\rsa\s-1-5-18\d42cc0c3858a58db2db37658219e6400_d99ef00b-ccd3-4f1d-9980-90ac453b0b47
- <SYSTEM32>\grouppolicy\machine\registry.pol
- <SYSTEM32>\grouppolicy\gpt.ini
- %ALLUSERSPROFILE%\ntuser.pol
- %HOMEPATH%\ntuser.pol
Deletes the following files
- <SYSTEM32>\tasks\gcheezbac
Miscellaneous
Creates and executes the following
- '%TEMP%\7zsa247.tmp\install.exe' /VgdidyhuV "525403" /S
- '%TEMP%\ivfvvhnigiyhaiwaa\edhrmuspjvyjnvl\ddsyvot.exe' Mv /Yrsite_idElA 525403 /S
Executes the following
- '%WINDIR%\syswow64\forfiles.exe' /p <SYSTEM32> /m where.exe /c "cmd /C powershell -WindowStyle Hidden WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionExtension=exe Force=True"
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\mfOEuGwqkLFbC" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\mfOEuGwqkLFbC" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\xRoHTrfYcfGreqCFIqR" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\xRoHTrfYcfGreqCFIqR" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ALLUSERSPROFILE%\UakFvFPMbXVAWgVB" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ALLUSERSPROFILE%\UakFvFPMbXVAWgVB" /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%\IvFVVHNigIyhAiWaa" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%TEMP%\IvFVVHNigIyhAiWaa" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\BcCQMXwjU" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\ITFcQRBGgRUn" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\SwHdQyPSnQdU2" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\SwHdQyPSnQdU2" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\ITFcQRBGgRUn" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\SwHdQyPSnQdU2" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\mfOEuGwqkLFbC" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\mfOEuGwqkLFbC" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\xRoHTrfYcfGreqCFIqR" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\xRoHTrfYcfGreqCFIqR" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ALLUSERSPROFILE%\UakFvFPMbXVAWgVB" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ALLUSERSPROFILE%\UakFvFPMbXVAWgVB" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\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\Policies\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\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%TEMP%\IvFVVHNigIyhAiWaa" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%TEMP%\IvFVVHNigIyhAiWaa" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\schtasks.exe' /CREATE /TN "MVZgvzYKAFemhQpXL" /SC once /ST 00:24:39 /RU "SYSTEM" /TR "\"%WINDIR%\Temp\QomKEDtaZauBMonw\fdsKOKogfpICasy\LpqMqlw.exe\" XP /efsite_idxvT 525403 /S" /V1 /F
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\ITFcQRBGgRUn" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\SwHdQyPSnQdU2" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\BcCQMXwjU" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\BcCQMXwjU" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\BcCQMXwjU" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionExtension=exe Force=True
- '%WINDIR%\syswow64\schtasks.exe' /CREATE /TN "bXvtwaJkKQEzfXjvnG" /SC once /ST 18:11:00 /RU "SYSTEM" /TR "\"%TEMP%\IvFVVHNigIyhAiWaa\EDHrMUSPJvyJNvL\DDsyVoT.exe\" Mv /Yrsite_idElA 525403 /S" /V1 /F
- '%WINDIR%\syswow64\wbem\wmic.exe' /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionExtension=exe Force=True
- '%WINDIR%\syswow64\schtasks.exe' /CREATE /TN "gChEEzbaC" /SC once /ST 12:04:10 /F /RU "user" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZ...
- '%WINDIR%\syswow64\schtasks.exe' /run /I /tn "gChEEzbaC"
- '<SYSTEM32>\taskeng.exe' {3443C0AF-0FA3-4632-84CB-B8944BD139DA} S-1-5-21-3150914307-1777937420-491476919-1000:dwccota\user:Interactive:[1]
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==
- '<SYSTEM32>\gpupdate.exe' /force
- '<SYSTEM32>\gpscript.exe' /RefreshSystemParam
- '<SYSTEM32>\svchost.exe' -k secsvcs
- '%WINDIR%\syswow64\schtasks.exe' /run /I /tn "MVZgvzYKAFemhQpXL"
- '%WINDIR%\syswow64\forfiles.exe' /p <SYSTEM32> /m cmd.exe /c "cmd /C powershell -WindowStyle Hidden WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionExtension=wsf Force=True"
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%ProgramFiles(x86)%\ITFcQRBGgRUn" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\cmd.exe' powershell -WindowStyle Hidden WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionExtension=exe Force=True
- '%WINDIR%\syswow64\schtasks.exe' /DELETE /F /TN "gChEEzbaC"
- '%WINDIR%\syswow64\cmd.exe' /C copy nul "%WINDIR%\Temp\QomKEDtaZauBMonw\YcKbDQjf\aMBLadZugEXDyHyn.wsf"
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\QomKEDtaZauBMonw" /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\QomKEDtaZauBMonw" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\QomKEDtaZauBMonw" /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\QomKEDtaZauBMonw" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\cmd.exe' powershell -WindowStyle Hidden WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionExtension=wsf Force=True
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\QomKEDtaZauBMonw" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\reg.exe' ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\QomKEDtaZauBMonw" /t REG_DWORD /d 0 /reg:32
- '<SYSTEM32>\raserver.exe' /offerraupdate
- '%WINDIR%\syswow64\cmd.exe' /C REG ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\QomKEDtaZauBMonw" /t REG_DWORD /d 0 /reg:32
- '%WINDIR%\syswow64\wbem\wmic.exe' /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionExtension=wsf Force=True
- '%WINDIR%\syswow64\cmd.exe' /C REG ADD "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /f /v "%WINDIR%\Temp\QomKEDtaZauBMonw" /t REG_DWORD /d 0 /reg:64
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden WMIC /NAMESPACE:\\root\Microsoft\Windows\Defender PATH MSFT_MpPreference call Add ExclusionExtension=wsf Force=True
- '%WINDIR%\syswow64\wscript.exe' "%WINDIR%\Temp\QomKEDtaZauBMonw\YcKbDQjf\aMBLadZugEXDyHyn.wsf"
- '<SYSTEM32>\gpupdate.exe' /force' (with hidden window)
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==' (with hidden window)
- '%TEMP%\ivfvvhnigiyhaiwaa\edhrmuspjvyjnvl\ddsyvot.exe' Mv /Yrsite_idElA 525403 /S' (with hidden window)
- '%WINDIR%\temp\qomkedtazaubmonw\fdskokogfpicasy\lpqmqlw.exe' XP /efsite_idxvT 525403 /S' (with hidden window)
