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Win32.HLLM.Perf.origin

Added to the Dr.Web virus database: 2022-04-21

Virus description added:

Technical Information

Malicious functions
Injects code into
the following system processes:
  • %WINDIR%\syswow64\svchost.exe
Modifies file system
Creates the following files
  • %WINDIR%\csrss.exe
  • %TEMP%\message.zip
Network activity
Connects to
  • '85.##9.23.35':80
  • '20#.#6.250.119':80
  • '84.##.161.192':80
Miscellaneous
Searches for the following windows
  • ClassName: 'TMsgEditor' WindowName: ''
  • ClassName: 'ATH_Note' WindowName: ''
Creates and executes the following
  • '%WINDIR%\csrss.exe'
  • '%WINDIR%\csrss.exe' ' (with hidden window)
  • '%WINDIR%\syswow64\svchost.exe' %WINDIR%\csrss.exe' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\svchost.exe' %WINDIR%\csrss.exe