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
- 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
- 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
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
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_kb2i1x3b.j40.ps1
- %WINDIR%\temp\__psscriptpolicytest_mv3hgmoz.bnd.psm1
- %WINDIR%\temp\__psscriptpolicytest_basgnnp3.bwi.ps1
- %WINDIR%\temp\__psscriptpolicytest_44bbays1.nuh.psm1
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-49-59-138.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-49-59-411.dump
- %WINDIR%\temp\content\3400-4192-powershell.exe-15-49-59-511.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-49-59-522.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-49-59-681.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-49-59-720.dump
- %WINDIR%\temp\__psscriptpolicytest_qspdk2cj.vpf.ps1
- %WINDIR%\temp\__psscriptpolicytest_hpbilvua.soy.psm1
- %WINDIR%\temp\content\3400-4192-powershell.exe-15-49-59-811.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-49-59-905.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-49-59-926.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-49-59-967.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-00-052.dump
- %WINDIR%\temp\content\3400-4192-powershell.exe-15-50-00-063.dump
- %WINDIR%\temp\content\3400-4192-powershell.exe-15-50-00-116.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-00-159.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-00-233.dump
- %WINDIR%\temp\content\3400-4192-powershell.exe-15-50-00-254.dump
- %WINDIR%\temp\content\3400-4192-powershell.exe-15-50-00-327.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-00-349.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-00-380.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-00-412.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-00-431.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-00-462.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-00-485.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-00-506.dump
- <SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\powershell\startupprofiledata-noninteractive
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-01-023.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-01-134.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-01-208.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-01-217.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-01-219.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-01-302.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-01-383.dump
- %WINDIR%\temp\content\4792-4084-powershell.exe-15-50-01-513.dump
- %WINDIR%\temp\wfhwuqfeiatc.sys
- %WINDIR%\temp\__psscriptpolicytest_4gdnqc4h.kym.ps1
- %WINDIR%\temp\__psscriptpolicytest_3zux2xu4.bgq.psm1
- %WINDIR%\temp\content\3192-4124-powershell.exe-15-50-07-536.dump
- %WINDIR%\temp\content\3192-4124-powershell.exe-15-50-07-834.dump
- %WINDIR%\temp\content\3192-4124-powershell.exe-15-50-08-086.dump
- %WINDIR%\temp\content\3192-4124-powershell.exe-15-50-08-139.dump
- %WINDIR%\temp\content\3192-4124-powershell.exe-15-50-08-262.dump
- %WINDIR%\temp\content\3192-4124-powershell.exe-15-50-08-327.dump
- <SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\ie\scanner[1].exe
- %ALLUSERSPROFILE%\wxappoekcg.exe
- <SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\ie\scanner[2].exe
- %ALLUSERSPROFILE%\hcypmikshw.exe
Deletes following files that it created itself
- %WINDIR%\temp\__psscriptpolicytest_kb2i1x3b.j40.ps1
- %WINDIR%\temp\__psscriptpolicytest_mv3hgmoz.bnd.psm1
- %WINDIR%\temp\__psscriptpolicytest_basgnnp3.bwi.ps1
- %WINDIR%\temp\__psscriptpolicytest_44bbays1.nuh.psm1
- %WINDIR%\temp\__psscriptpolicytest_qspdk2cj.vpf.ps1
- %WINDIR%\temp\__psscriptpolicytest_hpbilvua.soy.psm1
- <SYSTEM32>\tasks\dialersvc64
- %WINDIR%\temp\__psscriptpolicytest_4gdnqc4h.kym.ps1
- %WINDIR%\temp\__psscriptpolicytest_3zux2xu4.bgq.psm1
Network activity
Connects to
- 'po##.#upportxmr.com':9000
- 'po####n.drpc.org':443
- 'pt#####n.duckdns.org':80
TCP
HTTP GET requests
HTTP POST requests
Other
- 'pa###bin.com':443
- 'po##.#upportxmr.com':9000
UDP
- DNS ASK po##.#upportxmr.com
- DNS ASK po####n.drpc.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:{e8589f22-f2e3-4eaf-8cac-77dd3e905a0c}
- '<SYSTEM32>\dllhost.exe' /Processid:{15f7eb53-5277-4c50-86f1-cf5d8cd96492}
