Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'svchost' = '"%APPDATA%\svchost.exe"'
Creates or modifies the following files
- <SYSTEM32>\tasks\svchost
Malicious functions
Injects code into
the following system processes:
- %WINDIR%\microsoft.net\framework64\v4.0.30319\setupcache\v4.7.02558\setup.exe
Terminates or attempts to terminate
the following system processes:
- %WINDIR%\microsoft.net\framework64\v4.0.30319\addinprocess32.exe
- %WINDIR%\microsoft.net\framework64\v4.0.30319\microsoft.workflow.compiler.exe
- %WINDIR%\microsoft.net\framework64\v4.0.30319\comsvcconfig.exe
- %WINDIR%\microsoft.net\framework64\v4.0.30319\msbuild.exe
Modifies file system
Creates the following files
- %APPDATA%\svchost.exe
- %TEMP%\tmpab9a.tmp.bat
- nul
Miscellaneous
Creates and executes the following
- '%APPDATA%\svchost.exe'
- '<SYSTEM32>\cmd.exe' /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"%APPDATA%\svchost.exe"' & exit' (with hidden window)
Executes the following
- '<SYSTEM32>\cmd.exe' /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"%APPDATA%\svchost.exe"' & exit
- '<SYSTEM32>\cmd.exe' /c ""%TEMP%\tmpAB9A.tmp.bat""
- '<SYSTEM32>\schtasks.exe' /create /f /sc onlogon /rl highest /tn "svchost" /tr '"%APPDATA%\svchost.exe"'
- '<SYSTEM32>\timeout.exe' 3
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\setupcache\v4.7.02558\setup.exe'
