Technical Information
To ensure autorun and distribution
Creates or modifies the following files
- <SYSTEM32>\tasks\toajpfoyz
- <SYSTEM32>\tasks\entrypoint
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion:
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden Add-MpPreference -ExclusionPath @('<Full path to file>', '%LOCALAPPDATA%', '%APPDATA%', '%LOCALAPPDATA%', '%APPDATA%'); Add-MpPreference -ExclusionProcess '<Full path to fil...
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -WindowStyle Hidden -NoProfile Add-MpPreference -ExclusionPath %LOCALAPPDATA%,%TEMP%\;Add-MpPreference -ExclusionPath %LOCALAPPDATA%\MethodName\yyndnum\EntryPoint.exe;Ad...
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework64\v4.0.30319\installutil.exe
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\windowspowershell\v1.0\powershell.exe
Searches for windows to
detect analytical utilities:
- 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%\content\464-440-<File name>.exe-06-35-12-474.dump
- %TEMP%\instllamodule9220386.exe
- %TEMP%\content\192-2232-instllamodule9220386.exe-06-35-21-568.dump
- %TEMP%\2310326094e849d69ba96b2c7ec7d6e2.xml
- %LOCALAPPDATA%\methodname\yyndnum\entrypoint.exe
- %TEMP%\8a35019fa0ab434cb9deb027169a3f5a.xml
- %LOCALAPPDATA%\microsoft\clr_v4.0\usagelogs\instllamodule9220386.exe.log
- %TEMP%\content\1376-1388-entrypoint.exe-06-36-04-302.dump
Deletes the following files
- <SYSTEM32>\tasks\toajpfoyz
Miscellaneous
Searches for the following windows
- ClassName: 'Registry Monitor - Sysinternals: www.sysinternals.com' WindowName: ''
- ClassName: '18467-41' WindowName: ''
Creates and executes the following
- '%TEMP%\instllamodule9220386.exe'
- '%LOCALAPPDATA%\methodname\yyndnum\entrypoint.exe'
Executes the following
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -WindowStyle Hidden Start-Process '%TEMP%\\InstllaModule9220386.exe'
- '<SYSTEM32>\schtasks.exe' /Create /TN "toajpfoyz" /XML "%TEMP%\2310326094e849d69ba96b2c7ec7d6e2.xml" /F
- '<SYSTEM32>\schtasks.exe' /Create /TN "EntryPoint" /XML "%TEMP%\8a35019fa0ab434cb9deb027169a3f5a.xml" /F
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\installutil.exe'
- '<SYSTEM32>\schtasks.exe' /Create /TN "toajpfoyz" /XML "%TEMP%\2310326094e849d69ba96b2c7ec7d6e2.xml" /F' (with hidden window)
- '<SYSTEM32>\schtasks.exe' /Create /TN "EntryPoint" /XML "%TEMP%\8a35019fa0ab434cb9deb027169a3f5a.xml" /F' (with hidden window)
