Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'MicroUpdate' = '%HOMEPATH%\My Documents\MSDCSC\msdcsc.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'UserInit' = '<SYSTEM32>\userinit.exe,%HOMEPATH%\My Documents\MSDCSC\msdcsc.exe'
Malicious functions:
Injects code into
the following user processes:
- msdcsc.exe
Modifies file system:
Creates the following files:
- %TEMP%\aut1.tmp
- %TEMP%\isvadvf
- %TEMP%\aut2.tmp
- %TEMP%\HFUXVQ.exe
- %TEMP%\aut3.tmp
- %TEMP%\JVJYRE.exe
- %HOMEPATH%\My Documents\MSDCSC\msdcsc.exe
Deletes the following files:
- %TEMP%\aut1.tmp
- %TEMP%\isvadvf
- %TEMP%\aut2.tmp
- %TEMP%\aut3.tmp
Network activity:
Connects to:
- 'up######ervice.linkpc.net':1604
UDP:
- DNS ASK up######ervice.linkpc.net
Miscellaneous:
Creates and executes the following:
- '%TEMP%\HFUXVQ.exe'
- '%HOMEPATH%\My Documents\MSDCSC\msdcsc.exe'
