Win32.HLLW.Autoruner.53261
Added to the Dr.Web virus database:
2011-07-02
Virus description added:
2011-07-05
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'csrss' = 'C:\csrss.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\sexi.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions:
Executes the following:
- <SYSTEM32>\reg.exe add hklm\software\microsoft\windows\currentversion\run /v csrss /t reg_sz /d C:\csrss.exe /f
Modifies file system :
Creates the following files:
- C:\Documents and Settings\Default User\Templates\winword2.doc.exe
- C:\Documents and Settings\Default User\Templates\winword.doc.exe
- <SYSTEM32>\config\systemprofile\Templates\winword.doc.exe
- C:\Keytrap.txt
- <SYSTEM32>\config\systemprofile\Templates\winword2.doc.exe
- C:\autorun.inf
- C:\csrss.exe
- C:\sexi.exe
- %HOMEPATH%\Templates\winword2.doc.exe
- %HOMEPATH%\Templates\winword.doc.exe
Sets the 'hidden' attribute to the following files:
- C:\autorun.inf
- C:\sexi.exe
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\sexi.exe
Deletes the following files:
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: 'Administrador de tareas de Windows'
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