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\TOPSOCSR] 'Start' = '00000002'
- [HKLM\SYSTEM\CurrentControlSet\Services\TOPSOCSR] 'ImagePath' = '%ALLUSERSPROFILE%\rcmeotmtrtmm\szlvtzbcbfby.exe'
- [HKLM\SYSTEM\CurrentControlSet\Services\WinRing0_1_2_0] 'ImagePath' = '%WINDIR%\TEMP\WinRing0x64.sys'
Creates the following services
- 'TOPSOCSR' %ALLUSERSPROFILE%\rcmeotmtrtmm\szlvtzbcbfby.exe
- 'WinRing0_1_2_0' %WINDIR%\TEMP\WinRing0x64.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>\sc.exe
- <SYSTEM32>\conhost.exe
- <SYSTEM32>\slui.exe
- <SYSTEM32>\powercfg.exe
- <SYSTEM32>\windowspowershell\v1.0\powershell.exe
the following user processes:
- iexplore.exe
- firefox.exe
Hooks functions
in browsers
- firefox.exe process, advapi32.dll module
- iexplore.exe process, advapi32.dll module
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
- powercfg.exe process, pdh.dll module
- powercfg.exe process, SECHOST.dll module
- powercfg.exe process, ADVAPI32.dll module
- powershell.exe process, pdh.dll module
- powershell.exe process, SECHOST.dll module
- powershell.exe process, ADVAPI32.dll module
in AMSI dll
- powershell.exe process, Amsi.dll module
in NTDLL dll
- dllhost.exe process, ntdll.dll module
- powercfg.exe process, ntdll.dll module
- powershell.exe process, ntdll.dll module
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\windowspowershell\v1.0\powershell.exe
- <SYSTEM32>\dllhost.exe
Modifies file system
Creates the following files
- %ALLUSERSPROFILE%\rcmeotmtrtmm\szlvtzbcbfby.exe
- %WINDIR%\temp\__psscriptpolicytest_m2wpmkjp.nwz.ps1
- %WINDIR%\temp\__psscriptpolicytest_ia0yaa42.mtd.psm1
- %WINDIR%\temp\__psscriptpolicytest_nvl5usni.ngv.ps1
- %WINDIR%\temp\__psscriptpolicytest_eii3sqlr.swj.psm1
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-20-465.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-20-729.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-20-864.dump
- %WINDIR%\temp\content\5804-1196-powershell.exe-20-26-20-913.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-053.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-085.dump
- %WINDIR%\temp\__psscriptpolicytest_uag1ybrg.54y.ps1
- %WINDIR%\temp\__psscriptpolicytest_q5g4412o.ii0.psm1
- %WINDIR%\temp\content\5804-1196-powershell.exe-20-26-21-258.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-277.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-311.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-363.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-448.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-542.dump
- %WINDIR%\temp\content\5804-1196-powershell.exe-20-26-21-557.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-627.dump
- %WINDIR%\temp\content\5804-1196-powershell.exe-20-26-21-627.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-743.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-783.dump
- %WINDIR%\temp\content\5804-1196-powershell.exe-20-26-21-793.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-804.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-834.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-857.dump
- %WINDIR%\temp\content\5804-1196-powershell.exe-20-26-21-866.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-886.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-21-930.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-22-581.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-22-657.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-22-701.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-22-710.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-22-712.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-22-756.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-22-790.dump
- %WINDIR%\temp\content\3496-2596-powershell.exe-20-26-22-850.dump
- <SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\powershell\startupprofiledata-noninteractive
- %WINDIR%\temp\sosqnxfohucq.sys
- %WINDIR%\temp\__psscriptpolicytest_gwh2wcpk.33w.ps1
- %WINDIR%\temp\__psscriptpolicytest_0bihx40b.nn4.psm1
- %WINDIR%\temp\content\6088-3292-powershell.exe-20-26-29-920.dump
- %WINDIR%\temp\content\6088-3292-powershell.exe-20-26-30-274.dump
- %WINDIR%\temp\content\6088-3292-powershell.exe-20-26-30-553.dump
- %WINDIR%\temp\content\6088-3292-powershell.exe-20-26-30-617.dump
- %WINDIR%\temp\content\6088-3292-powershell.exe-20-26-30-755.dump
- %WINDIR%\temp\content\6088-3292-powershell.exe-20-26-30-847.dump
- <SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\ie\scanner[1].exe
- %ALLUSERSPROFILE%\drrhjzpwpc.exe
Deletes following files that it created itself
- %WINDIR%\temp\__psscriptpolicytest_m2wpmkjp.nwz.ps1
- %WINDIR%\temp\__psscriptpolicytest_ia0yaa42.mtd.psm1
- %WINDIR%\temp\__psscriptpolicytest_nvl5usni.ngv.ps1
- %WINDIR%\temp\__psscriptpolicytest_eii3sqlr.swj.psm1
- %WINDIR%\temp\__psscriptpolicytest_uag1ybrg.54y.ps1
- %WINDIR%\temp\__psscriptpolicytest_q5g4412o.ii0.psm1
- <SYSTEM32>\tasks\dialersvc64
- %WINDIR%\temp\__psscriptpolicytest_gwh2wcpk.33w.ps1
- %WINDIR%\temp\__psscriptpolicytest_0bihx40b.nn4.psm1
Network activity
Connects to
- 'po##.#upportxmr.com':9000
- 'po###on-rpc.com':443
- '13#.###.thirdweb.com':443
- 'x1.#.lencr.org':80
- 'pa###bin.com':443
- 'pt#####n.duckdns.org':80
TCP
HTTP GET requests
- http://x1.#.lencr.org/
HTTP POST requests
Other
- 'po###on-rpc.com':443
- 'po##.#upportxmr.com':9000
- '13#.###.thirdweb.com':443
UDP
- DNS ASK po##.#upportxmr.com
- DNS ASK po###on-rpc.com
- DNS ASK 13#.###.thirdweb.com
- DNS ASK x1.#.lencr.org
- DNS ASK pa###bin.com
- DNS ASK pt#####n.duckdns.org
Miscellaneous
Creates and executes the following
- '%ALLUSERSPROFILE%\rcmeotmtrtmm\szlvtzbcbfby.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 "TOPSOCSR"
- '<SYSTEM32>\sc.exe' create "TOPSOCSR" binpath= "%ALLUSERSPROFILE%\rcmeotmtrtmm\szlvtzbcbfby.exe" start= "auto"
- '<SYSTEM32>\sc.exe' stop eventlog
- '<SYSTEM32>\sc.exe' start "TOPSOCSR"
- '<SYSTEM32>\cmd.exe' /c choice /C Y /N /D Y /T 3 & Del "<Full path to file>"
- '<SYSTEM32>\choice.exe' /C Y /N /D Y /T 3
- '<SYSTEM32>\dllhost.exe' /Processid:{525019d3-ab65-49c2-b4cd-e4b0dab8645e}
- '<SYSTEM32>\dllhost.exe' /Processid:{c3c8e804-74d1-4408-894e-06ad63ab635b}
