Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\dialersvc64
Sets the following service settings
- [HKLM\SYSTEM\CurrentControlSet\Services\GoogleUpdateTaskMachineQC] 'Start' = '00000002'
- [HKLM\SYSTEM\CurrentControlSet\Services\GoogleUpdateTaskMachineQC] 'ImagePath' = '%ALLUSERSPROFILE%\Google\Chrome\updater.exe'
- [HKLM\SYSTEM\CurrentControlSet\Services\WinRing0_1_2_0] 'ImagePath' = '%WINDIR%\TEMP\octyvkjougma.sys'
Creates the following services
- 'GoogleUpdateTaskMachineQC' %ALLUSERSPROFILE%\Google\Chrome\updater.exe
- 'WinRing0_1_2_0' %WINDIR%\TEMP\octyvkjougma.sys
Malicious functions
To complicate detection of its presence in the operating system,
blocks the following features:
- Windows Event Logging
adds antivirus exclusion:
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' Add-MpPreference -ExclusionPath @($env:UserProfile, $env:ProgramData) -ExclusionExtension '.exe' -Force
Injects code into
the following system processes:
- <SYSTEM32>\dllhost.exe
- <SYSTEM32>\dialer.exe
- <SYSTEM32>\winlogon.exe
- <SYSTEM32>\lsass.exe
- <SYSTEM32>\svchost.exe
- <SYSTEM32>\dwm.exe
- <SYSTEM32>\wudfhost.exe
- <SYSTEM32>\spoolsv.exe
- <SYSTEM32>\sihost.exe
- <SYSTEM32>\taskhostw.exe
- %WINDIR%\explorer.exe
- <SYSTEM32>\runtimebroker.exe
- <SYSTEM32>\securityhealthsystray.exe
- <SYSTEM32>\oobe\useroobebroker.exe
- <SYSTEM32>\sppextcomobj.exe
- <SYSTEM32>\slui.exe
- <SYSTEM32>\sc.exe
- <SYSTEM32>\conhost.exe
- <SYSTEM32>\windowspowershell\v1.0\powershell.exe
- <SYSTEM32>\cmd.exe
- <SYSTEM32>\wusa.exe
- <SYSTEM32>\powercfg.exe
- <SYSTEM32>\wbem\wmiprvse.exe
the following user processes:
- iexplore.exe
- firefox.exe
- updater.exe
Patches code
in dll
- dllhost.exe process, KERNEL32.dll module
- winlogon.exe process, pdh.dll module
- lsass.exe process, pdh.dll module
- svchost.exe process, pdh.dll module
- dwm.exe process, pdh.dll module
- wudfhost.exe process, pdh.dll module
- spoolsv.exe process, pdh.dll module
- sihost.exe process, pdh.dll module
- taskhostw.exe process, pdh.dll module
- runtimebroker.exe process, pdh.dll module
- runtimebroker.exe process, ADVAPI32.dll module
- securityhealthsystray.exe process, pdh.dll module
- iexplore.exe process, pdh.dll module
- firefox.exe process, pdh.dll module
- useroobebroker.exe process, pdh.dll module
- sc.exe process, pdh.dll module
- sc.exe process, SECHOST.dll module
- sc.exe process, ADVAPI32.dll module
- powershell.exe process, pdh.dll module
- powershell.exe process, SECHOST.dll module
- powershell.exe process, ADVAPI32.dll module
- cmd.exe process, pdh.dll module
- cmd.exe process, SECHOST.dll module
- cmd.exe process, ADVAPI32.dll module
- wusa.exe process, pdh.dll module
- wusa.exe process, SECHOST.dll module
- wusa.exe process, ADVAPI32.dll module
- powercfg.exe process, pdh.dll module
- powercfg.exe process, SECHOST.dll module
- powercfg.exe process, ADVAPI32.dll module
in AMSI dll
- powershell.exe process, Amsi.dll module
in NTDLL dll
- taxdkng.exe process, ntdll.dll module
- updater.exe process, ntdll.dll module
- dllhost.exe process, ntdll.dll module
- sc.exe process, ntdll.dll module
- powershell.exe process, ntdll.dll module
- cmd.exe process, ntdll.dll module
- wusa.exe process, ntdll.dll module
- powercfg.exe process, ntdll.dll module
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\windowspowershell\v1.0\powershell.exe
- <SYSTEM32>\dllhost.exe
Searches for windows to
detect analytical utilities:
- ClassName: 'RegmonClass', WindowName: ''
- ClassName: 'FilemonClass', WindowName: ''
- ClassName: 'PROCMON_WINDOW_CLASS', WindowName: ''
Modifies file system
Creates the following files
- %ALLUSERSPROFILE%\google\chrome\updater.exe
- %WINDIR%\temp\__psscriptpolicytest_kfxzyzpn.eb3.ps1
- %WINDIR%\temp\__psscriptpolicytest_dgqcxt3o.fnd.psm1
- %WINDIR%\temp\content\5756-2180-powershell.exe-14-07-03-375.dump
- %WINDIR%\temp\content\5756-2180-powershell.exe-14-07-03-782.dump
- %WINDIR%\temp\content\5756-2180-powershell.exe-14-07-04-054.dump
- %WINDIR%\temp\content\5756-2180-powershell.exe-14-07-04-128.dump
- %WINDIR%\temp\content\5756-2180-powershell.exe-14-07-04-290.dump
- %WINDIR%\temp\content\5756-2180-powershell.exe-14-07-04-389.dump
- <SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\powershell\startupprofiledata-noninteractive
- %WINDIR%\temp\__psscriptpolicytest_qk1ncyox.zw1.ps1
- %WINDIR%\temp\__psscriptpolicytest_uehkulb0.3fv.psm1
- %WINDIR%\temp\__psscriptpolicytest_ch0jsl01.ftx.ps1
- %WINDIR%\temp\__psscriptpolicytest_jg2n4eg3.kvz.psm1
- %WINDIR%\temp\octyvkjougma.sys
- %WINDIR%\temp\__psscriptpolicytest_xakaw1ey.ijp.ps1
- %WINDIR%\temp\__psscriptpolicytest_psinlhqm.ock.psm1
- %WINDIR%\temp\content\3668-5696-powershell.exe-14-07-21-189.dump
- %WINDIR%\temp\content\3668-5696-powershell.exe-14-07-21-552.dump
- %WINDIR%\temp\content\3668-5696-powershell.exe-14-07-21-824.dump
- %WINDIR%\temp\content\3668-5696-powershell.exe-14-07-21-900.dump
- %WINDIR%\temp\content\3668-5696-powershell.exe-14-07-22-058.dump
- %WINDIR%\temp\content\3668-5696-powershell.exe-14-07-22-176.dump
Deletes following files that it created itself
- %WINDIR%\temp\__psscriptpolicytest_kfxzyzpn.eb3.ps1
- %WINDIR%\temp\__psscriptpolicytest_dgqcxt3o.fnd.psm1
- %WINDIR%\temp\__psscriptpolicytest_qk1ncyox.zw1.ps1
- %WINDIR%\temp\__psscriptpolicytest_uehkulb0.3fv.psm1
- %WINDIR%\temp\__psscriptpolicytest_ch0jsl01.ftx.ps1
- %WINDIR%\temp\__psscriptpolicytest_jg2n4eg3.kvz.psm1
- <SYSTEM32>\tasks\dialersvc64
- %WINDIR%\temp\__psscriptpolicytest_xakaw1ey.ijp.ps1
- %WINDIR%\temp\__psscriptpolicytest_psinlhqm.ock.psm1
Modifies the HOSTS file.
Network activity
Connects to
- 'xm#####.nanopool.org':10343
TCP
Other
- 'xm#####.nanopool.org':10343
UDP
- DNS ASK xm#####.nanopool.org
Miscellaneous
Searches for the following windows
- ClassName: 'Registry Monitor - Sysinternals: www.sysinternals.com' WindowName: ''
- ClassName: '18467-41' WindowName: ''
- ClassName: 'File Monitor - Sysinternals: www.sysinternals.com' WindowName: ''
- ClassName: 'Process Monitor - Sysinternals: www.sysinternals.com' WindowName: ''
Creates and executes the following
- '%ALLUSERSPROFILE%\google\chrome\updater.exe'
Executes the following
- '<SYSTEM32>\cmd.exe' /c wusa /uninstall /kb:890830 /quiet /norestart
- '<SYSTEM32>\sc.exe' stop UsoSvc
- '<SYSTEM32>\sc.exe' stop WaaSMedicSvc
- '<SYSTEM32>\wusa.exe' /uninstall /kb:890830 /quiet /norestart
- '<SYSTEM32>\sc.exe' stop wuauserv
- '<SYSTEM32>\sc.exe' stop bits
- '<SYSTEM32>\sc.exe' stop dosvc
- '<SYSTEM32>\powercfg.exe' /x -hibernate-timeout-ac 0
- '<SYSTEM32>\powercfg.exe' /x -hibernate-timeout-dc 0
- '<SYSTEM32>\powercfg.exe' /x -standby-timeout-ac 0
- '<SYSTEM32>\powercfg.exe' /x -standby-timeout-dc 0
- '<SYSTEM32>\dialer.exe'
- '<SYSTEM32>\sc.exe' delete "GoogleUpdateTaskMachineQC"
- '<SYSTEM32>\sc.exe' create "GoogleUpdateTaskMachineQC" binpath= "%ALLUSERSPROFILE%\Google\Chrome\updater.exe" start= "auto"
- '<SYSTEM32>\sc.exe' stop eventlog
- '<SYSTEM32>\sc.exe' start "GoogleUpdateTaskMachineQC"
- '<SYSTEM32>\dllhost.exe' /Processid:{a6154bdf-c4fe-45a5-9fe2-4e2284a4763d}
- '<SYSTEM32>\dllhost.exe' /Processid:{29e2c7fe-674c-4c8f-803f-ee71469c9ee4}
