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\FLiNG] 'Start' = '00000002'
- [HKLM\SYSTEM\CurrentControlSet\Services\FLiNG] 'ImagePath' = '%ALLUSERSPROFILE%\fling\autoupdatingv.exe'
Creates the following services
- 'FLiNG' %ALLUSERSPROFILE%\fling\autoupdatingv.exe
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
- <SYSTEM32>\windowspowershell\v1.0\powershell.exe
- %WINDIR%\explorer.exe
- <SYSTEM32>\runtimebroker.exe
- <SYSTEM32>\securityhealthsystray.exe
- <SYSTEM32>\oobe\useroobebroker.exe
- <SYSTEM32>\sppextcomobj.exe
- <SYSTEM32>\slui.exe
- <SYSTEM32>\conhost.exe
- <SYSTEM32>\wbem\wmiprvse.exe
the following user processes:
- iexplore.exe
- firefox.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
- 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
- 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
- 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%\fling\autoupdatingv.exe
- %WINDIR%\temp\__psscriptpolicytest_lcpcit50.1bn.ps1
- %WINDIR%\temp\__psscriptpolicytest_nd0kjunq.3va.psm1
- %WINDIR%\temp\__psscriptpolicytest_411vw5ro.lvo.ps1
- %WINDIR%\temp\__psscriptpolicytest_khpdiose.3dx.psm1
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-30-892.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-31-134.dump
- %WINDIR%\temp\content\3772-1656-powershell.exe-20-23-31-150.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-31-467.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-31-651.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-31-707.dump
- %WINDIR%\temp\content\3772-1656-powershell.exe-20-23-31-732.dump
- %WINDIR%\temp\__psscriptpolicytest_is4i1lmc.ct3.ps1
- %WINDIR%\temp\__psscriptpolicytest_tqvflbog.4rr.psm1
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-31-879.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-31-902.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-31-944.dump
- %WINDIR%\temp\content\3772-1656-powershell.exe-20-23-32-018.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-32-087.dump
- %WINDIR%\temp\content\3772-1656-powershell.exe-20-23-32-109.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-32-203.dump
- %WINDIR%\temp\content\3772-1656-powershell.exe-20-23-32-270.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-32-292.dump
- %WINDIR%\temp\content\3772-1656-powershell.exe-20-23-32-425.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-32-503.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-32-534.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-32-579.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-32-608.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-32-631.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-32-663.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-32-694.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-33-248.dump
- <SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\powershell\startupprofiledata-noninteractive
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-33-396.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-33-620.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-33-629.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-33-718.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-33-784.dump
- %WINDIR%\temp\content\1172-5128-powershell.exe-20-23-33-969.dump
- %WINDIR%\temp\sdfvfbxzughw.sys
- %WINDIR%\temp\__psscriptpolicytest_rubp5mfc.e34.ps1
- %WINDIR%\temp\__psscriptpolicytest_jn0ddd4o.mxg.psm1
- %WINDIR%\temp\content\4688-4152-powershell.exe-20-23-39-429.dump
- %WINDIR%\temp\content\4688-4152-powershell.exe-20-23-39-876.dump
- %WINDIR%\temp\content\4688-4152-powershell.exe-20-23-40-176.dump
- %WINDIR%\temp\content\4688-4152-powershell.exe-20-23-40-252.dump
- %WINDIR%\temp\content\4688-4152-powershell.exe-20-23-40-408.dump
- %WINDIR%\temp\content\4688-4152-powershell.exe-20-23-40-511.dump
Deletes following files that it created itself
- %WINDIR%\temp\__psscriptpolicytest_lcpcit50.1bn.ps1
- %WINDIR%\temp\__psscriptpolicytest_nd0kjunq.3va.psm1
- %WINDIR%\temp\__psscriptpolicytest_411vw5ro.lvo.ps1
- %WINDIR%\temp\__psscriptpolicytest_khpdiose.3dx.psm1
- %WINDIR%\temp\__psscriptpolicytest_is4i1lmc.ct3.ps1
- %WINDIR%\temp\__psscriptpolicytest_tqvflbog.4rr.psm1
- <SYSTEM32>\tasks\dialersvc64
- %WINDIR%\temp\__psscriptpolicytest_rubp5mfc.e34.ps1
- %WINDIR%\temp\__psscriptpolicytest_jn0ddd4o.mxg.psm1
Network activity
Connects to
- 'po##.#ashvault.pro':443
- 'ap##ndir.io':80
- 'ap##ndir.io':443
TCP
HTTP POST requests
Other
- 'ap##ndir.io':443
UDP
- DNS ASK po##.#ashvault.pro
- DNS ASK ap##ndir.io
Miscellaneous
Creates and executes the following
- '%ALLUSERSPROFILE%\fling\autoupdatingv.exe'
Executes the following
- '<SYSTEM32>\cmd.exe' /c wusa /uninstall /kb:890830 /quiet /norestart
- '<SYSTEM32>\dialer.exe'
- '<SYSTEM32>\sc.exe' delete "FLiNG"
- '<SYSTEM32>\wusa.exe' /uninstall /kb:890830 /quiet /norestart
- '<SYSTEM32>\sc.exe' create "FLiNG" binpath= "%ALLUSERSPROFILE%\fling\autoupdatingv.exe" start= "auto"
- '<SYSTEM32>\sc.exe' stop eventlog
- '<SYSTEM32>\sc.exe' start "FLiNG"
- '<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:{b91faabf-d7d1-476c-8cfd-baffaf646c04}
- '<SYSTEM32>\dllhost.exe' /Processid:{b4843219-db62-48c0-b106-d0a53f654279}
