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
- szlvtzbcbfby.exe
Hooks functions
in browsers
- iexplore.exe process, advapi32.dll module
- firefox.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
- sihost.exe process, pdh.dll module
- spoolsv.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
- 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
- slui.exe process, pdh.dll module
- slui.exe process, SECHOST.dll module
- slui.exe process, ADVAPI32.dll module
in AMSI dll
- powershell.exe process, Amsi.dll module
in NTDLL dll
- dllhost.exe process, ntdll.dll module
- sc.exe process, ntdll.dll module
- powercfg.exe process, ntdll.dll module
- powershell.exe process, ntdll.dll module
- slui.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_kdb5mi3i.mo5.ps1
- %WINDIR%\temp\__psscriptpolicytest_ovos0juf.r0v.psm1
- %WINDIR%\temp\__psscriptpolicytest_clc41y5r.haa.ps1
- %WINDIR%\temp\__psscriptpolicytest_qfstvrxu.jv5.psm1
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-47-730.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-48-002.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-48-136.dump
- %WINDIR%\temp\content\4984-1268-powershell.exe-06-14-48-206.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-48-336.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-48-368.dump
- %WINDIR%\temp\__psscriptpolicytest_wmrk00sv.0pq.ps1
- %WINDIR%\temp\__psscriptpolicytest_5g51wqkr.fxz.psm1
- %WINDIR%\temp\content\4984-1268-powershell.exe-06-14-48-538.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-48-561.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-48-594.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-48-646.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-48-742.dump
- %WINDIR%\temp\content\4984-1268-powershell.exe-06-14-48-806.dump
- %WINDIR%\temp\content\4984-1268-powershell.exe-06-14-48-870.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-48-879.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-48-954.dump
- %WINDIR%\temp\content\4984-1268-powershell.exe-06-14-49-029.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-49-071.dump
- %WINDIR%\temp\content\4984-1268-powershell.exe-06-14-49-105.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-49-105.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-49-149.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-49-180.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-49-201.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-49-222.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-49-243.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-49-786.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-49-855.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-49-924.dump
- <SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\powershell\startupprofiledata-noninteractive
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-50-003.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-50-052.dump
- %WINDIR%\temp\content\2436-1356-powershell.exe-06-14-50-284.dump
- %WINDIR%\temp\thhixajtcnwa.sys
- %WINDIR%\temp\__psscriptpolicytest_1ovnbav0.5sq.ps1
- %WINDIR%\temp\__psscriptpolicytest_1womaecb.cfs.psm1
- %WINDIR%\temp\content\2468-1604-powershell.exe-06-14-56-799.dump
- %WINDIR%\temp\content\2468-1604-powershell.exe-06-14-57-143.dump
- %WINDIR%\temp\content\2468-1604-powershell.exe-06-14-57-405.dump
- %WINDIR%\temp\content\2468-1604-powershell.exe-06-14-57-458.dump
- %WINDIR%\temp\content\2468-1604-powershell.exe-06-14-57-595.dump
- %WINDIR%\temp\content\2468-1604-powershell.exe-06-14-57-680.dump
Deletes following files that it created itself
- %WINDIR%\temp\__psscriptpolicytest_kdb5mi3i.mo5.ps1
- %WINDIR%\temp\__psscriptpolicytest_ovos0juf.r0v.psm1
- %WINDIR%\temp\__psscriptpolicytest_clc41y5r.haa.ps1
- %WINDIR%\temp\__psscriptpolicytest_qfstvrxu.jv5.psm1
- %WINDIR%\temp\__psscriptpolicytest_wmrk00sv.0pq.ps1
- %WINDIR%\temp\__psscriptpolicytest_5g51wqkr.fxz.psm1
- <SYSTEM32>\tasks\dialersvc64
- %WINDIR%\temp\__psscriptpolicytest_1ovnbav0.5sq.ps1
- %WINDIR%\temp\__psscriptpolicytest_1womaecb.cfs.psm1
Network activity
Connects to
- 'po##.#upportxmr.com':9000
- 'po######bor.publicnode.com':443
- 'pt#####n.duckdns.org':80
TCP
HTTP POST requests
- http://18#.#99.199.159/api/endpoint.php
Other
- 'pa###bin.com':443
- 'po##.#upportxmr.com':9000
UDP
- DNS ASK po##.#upportxmr.com
- DNS ASK po######bor.publicnode.com
- 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:{ba4ac38d-f898-45f2-ad01-1c4a15627aaf}
- '<SYSTEM32>\dllhost.exe' /Processid:{34943bdb-d827-44d0-802f-99a247142f6f}
