Win32.HLLW.Autoruner.51500
Added to the Dr.Web virus database:
2011-06-07
Virus description added:
2011-06-14
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'msngms' = '%WINDIR%\Messenger\MSN21.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'opesys' = '%WINDIR%\Messenger\propagador.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\Autorun.inf
Malicious functions:
Executes the following:
- <SYSTEM32>\reg.exe add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v msngms /t REG_SZ /d "%WINDIR%\Messenger\MSN21.exe" /f
- <SYSTEM32>\reg.exe add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v opesys /t REG_SZ /d "%WINDIR%\Messenger\propagador.exe" /f
- <SYSTEM32>\attrib.exe +h +s +R <Drive name for removable media>:\Autorun.inf
- <SYSTEM32>\attrib.exe +h +s +R F:\Autorun.inf
- <SYSTEM32>\attrib.exe +h +s +R E:\Autorun.inf
- <SYSTEM32>\ping.exe -n 15 localhost
- %WINDIR%\explorer.exe /E,\
- <SYSTEM32>\ping.exe -n 10 localhost
- <SYSTEM32>\xcopy.exe MSN21.exe "%WINDIR%\Messenger" /H/Y
- <SYSTEM32>\xcopy.exe propagador.exe "%WINDIR%\Messenger" /H/Y
Modifies file system :
Creates the following files:
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\Autorun.inf
- %TEMP%\a07753.bat
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
- ClassName: '' WindowName: 'GINA Logon'
- ClassName: '' WindowName: ''
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