Win32.HLLW.Autoruner2.29057
Added to the Dr.Web virus database:
2017-08-14
Virus description added:
2017-08-14
Technical Information
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\winlogon.exe' = '<SYSTEM32>\winlogon.exe:*:enabled:@shell32...
Executes the following:
- '%WINDIR%\pchealth\helpctr\binaries\HelpCtr.exe' -mode hcp://system/sysinfo/msinfo.xml
Injects code into
the following system processes:
- <SYSTEM32>\alg.exe
- <SYSTEM32>\ctfmon.exe
- <SYSTEM32>\cmd.exe
- %WINDIR%\pchealth\helpctr\binaries\HelpCtr.exe
- <SYSTEM32>\cscript.exe
- <SYSTEM32>\spoolsv.exe
- <SYSTEM32>\services.exe
- <SYSTEM32>\winlogon.exe
- <SYSTEM32>\lsass.exe
- %WINDIR%\Explorer.EXE
- <SYSTEM32>\svchost.exe
a large number of user processes.
Modifies file system:
Creates the following files:
Modifies the HOSTS file.
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
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