Technical Information
To ensure autorun and distribution
Sets the following service settings
- [HKLM\SYSTEM\CurrentControlSet\Services\ZLBJZJXH] 'Start' = '00000002'
- [HKLM\SYSTEM\CurrentControlSet\Services\ZLBJZJXH] 'ImagePath' = '%ALLUSERSPROFILE%\rzaczmezolkv\rxwpegyreorc.exe'
- [HKLM\SYSTEM\CurrentControlSet\Services\WinRing0_1_2_0] 'ImagePath' = '%WINDIR%\TEMP\brckwwbbngrg.sys'
Creates the following services
- 'ZLBJZJXH' %ALLUSERSPROFILE%\rzaczmezolkv\rxwpegyreorc.exe
- 'WinRing0_1_2_0' %WINDIR%\TEMP\brckwwbbngrg.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, $env:ProgramData) -ExclusionExtension '.exe' -Force
Injects code into
the following system processes:
- <SYSTEM32>\dialer.exe
- <SYSTEM32>\winlogon.exe
- <SYSTEM32>\lsass.exe
- <SYSTEM32>\svchost.exe
- <SYSTEM32>\dwm.exe
- <SYSTEM32>\wudfhost.exe
- <SYSTEM32>\spoolsv.exe
- <SYSTEM32>\sihost.exe
- <SYSTEM32>\taskhostw.exe
- %WINDIR%\explorer.exe
- <SYSTEM32>\runtimebroker.exe
- <SYSTEM32>\dllhost.exe
- <SYSTEM32>\securityhealthsystray.exe
- <SYSTEM32>\oobe\useroobebroker.exe
- <SYSTEM32>\wbem\wmiprvse.exe
- <SYSTEM32>\powercfg.exe
- <SYSTEM32>\conhost.exe
- <SYSTEM32>\sc.exe
- <SYSTEM32>\windowspowershell\v1.0\powershell.exe
- <SYSTEM32>\cmd.exe
- <SYSTEM32>\wusa.exe
the following user processes:
- iexplore.exe
- firefox.exe
- .$gr_e390aa4c4b0e49b69344066a874d5788_kmsauto++ portable v1.9.9.exe
- .$gr_ce7740921d0b43d7ac7be2612c4855be_kmsauto x64.exe
- rxwpegyreorc.exe
Patches code
in dll
- jjdebbz.exe process, KERNEL32.dll module
- jjdebbz.exe process, KERNELBASE.dll module
- jjdebbz.exe process, ADVAPI32.dll module
- jjdebbz.exe process, USER32.dll module
- dialer.exe process, KERNEL32.dll module
- runtimebroker.exe process, ADVAPI32.dll module
- .$gr_ce7740921d0b43d7ac7be2612c4855be_kmsauto x64.exe process, SECHOST.dll module
- .$gr_ce7740921d0b43d7ac7be2612c4855be_kmsauto x64.exe process, ADVAPI32.dll module
- powercfg.exe process, SECHOST.dll module
- powercfg.exe process, ADVAPI32.dll module
- sc.exe process, SECHOST.dll module
- sc.exe process, ADVAPI32.dll module
- powershell.exe process, SECHOST.dll module
- powershell.exe process, ADVAPI32.dll module
- cmd.exe process, SECHOST.dll module
- cmd.exe process, ADVAPI32.dll module
- wusa.exe process, SECHOST.dll module
- wusa.exe process, ADVAPI32.dll module
in NTDLL dll
- jjdebbz.exe process, ntdll.dll module
- dialer.exe process, ntdll.dll module
- .$gr_ce7740921d0b43d7ac7be2612c4855be_kmsauto x64.exe process, ntdll.dll module
- powercfg.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
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\dialer.exe
Searches for windows to
detect analytical utilities:
- ClassName: 'OLLYDBG', WindowName: ''
- ClassName: 'GBDYLLO', WindowName: ''
- ClassName: 'pediy06', WindowName: ''
- ClassName: 'FilemonClass', WindowName: ''
- ClassName: '', WindowName: 'File Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'PROCMON_WINDOW_CLASS', WindowName: ''
- ClassName: '', WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
- ClassName: 'RegmonClass', WindowName: ''
Modifies file system
Creates the following files
- %TEMP%\gamerandomizer_c952f3eec6bd4b8fb92f8fa8ab1fb4eb\_payload.zip
- %TEMP%\gamerandomizer_c952f3eec6bd4b8fb92f8fa8ab1fb4eb\.$gr_e390aa4c4b0e49b69344066a874d5788_kmsauto++ portable v1.9.9.exe
- %TEMP%\gamerandomizer_c952f3eec6bd4b8fb92f8fa8ab1fb4eb\.$gr_ce7740921d0b43d7ac7be2612c4855be_kmsauto x64.exe
- %ALLUSERSPROFILE%\rzaczmezolkv\rxwpegyreorc.exe
- %WINDIR%\temp\__psscriptpolicytest_r2qn1ekf.c10.ps1
- %WINDIR%\temp\__psscriptpolicytest_zagdehzq.iul.psm1
- %WINDIR%\temp\__psscriptpolicytest_01cr12rn.i3w.ps1
- %WINDIR%\temp\__psscriptpolicytest_enks1les.evu.psm1
- <SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\powershell\startupprofiledata-noninteractive
- %WINDIR%\temp\brckwwbbngrg.sys
Sets the 'hidden' attribute to the following files
- %TEMP%\gamerandomizer_c952f3eec6bd4b8fb92f8fa8ab1fb4eb\.$gr_e390aa4c4b0e49b69344066a874d5788_kmsauto++ portable v1.9.9.exe
- %TEMP%\gamerandomizer_c952f3eec6bd4b8fb92f8fa8ab1fb4eb\.$gr_ce7740921d0b43d7ac7be2612c4855be_kmsauto x64.exe
Deletes following files that it created itself
- %WINDIR%\temp\__psscriptpolicytest_r2qn1ekf.c10.ps1
- %WINDIR%\temp\__psscriptpolicytest_zagdehzq.iul.psm1
- %WINDIR%\temp\__psscriptpolicytest_01cr12rn.i3w.ps1
- %WINDIR%\temp\__psscriptpolicytest_enks1les.evu.psm1
Network activity
Connects to
- '19#.#24.59.60':3333
- 'pa###bin.com':443
TCP
Other
- '19#.#24.59.60':3333
- 'pa###bin.com':443
UDP
- DNS ASK pa###bin.com
Miscellaneous
Searches for the following windows
- ClassName: 'Registry Monitor - Sysinternals: www.sysinternals.com' WindowName: ''
- ClassName: '18467-41' WindowName: ''
Creates and executes the following
- '%TEMP%\gamerandomizer_c952f3eec6bd4b8fb92f8fa8ab1fb4eb\.$gr_e390aa4c4b0e49b69344066a874d5788_kmsauto++ portable v1.9.9.exe'
- '%TEMP%\gamerandomizer_c952f3eec6bd4b8fb92f8fa8ab1fb4eb\.$gr_ce7740921d0b43d7ac7be2612c4855be_kmsauto x64.exe'
- '%ALLUSERSPROFILE%\rzaczmezolkv\rxwpegyreorc.exe'
Executes the following
- '<SYSTEM32>\cmd.exe' /c copy <SYSTEM32>\Tasks\KMSAuto "%TEMP%\KMSAuto.tmp" /Y
- '<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 "ZLBJZJXH"
- '<SYSTEM32>\sc.exe' create "ZLBJZJXH" binpath= "%ALLUSERSPROFILE%\rzaczmezolkv\rxwpegyreorc.exe" start= "auto"
- '<SYSTEM32>\sc.exe' stop eventlog
- '<SYSTEM32>\sc.exe' start "ZLBJZJXH"
- '<SYSTEM32>\cmd.exe' /c copy <SYSTEM32>\Tasks\KMSAuto "%TEMP%\KMSAuto.tmp" /Y' (with hidden window)
