Technical Information
To ensure autorun and distribution:
Creates the following files on removable media:
- <Drive name for removable media>:\RECYCLER\wmimgmt.com
- <Drive name for removable media>:\AuToRUn.iNf
- <Drive name for removable media>:\RECYCLER\desktop.ini
Malicious functions:
Creates and executes the following:
- %ALLUSERSPROFILE%\Application Data\inetinfo.exe
Executes the following:
- <SYSTEM32>\net1.exe user HelpAssistant "active:YES1234"
- <SYSTEM32>\net1.exe user HelpAssistant /active:yes
- <SYSTEM32>\net1.exe localgroup %USERNAME%s HelpAssistant /add
- <SYSTEM32>\net1.exe user HelpAssistant "active:YES1234" /add
- <SYSTEM32>\cmd.exe /c %TEMP%\oi.bat
- <SYSTEM32>\reg.exe add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa /v forceguest /t REG_DWORD /d 0 /f
- <SYSTEM32>\reg.exe add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa /v limitblankpassworduse /t REG_DWORD /d 0 /f
Modifies file system :
Creates the following files:
- %TEMP%\oi.bat
- %TEMP%\temp.vih
- %ALLUSERSPROFILE%\Application Data\inetinfo.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\RECYCLER\desktop.ini
Deletes the following files:
- %TEMP%\temp.vih
