Win32.HLLW.Autoruner1.16251
Added to the Dr.Web virus database:
2012-05-20
Virus description added:
2012-06-10
Technical Information
To ensure autorun and distribution:
Creates the following files on removable media:
- <Drive name for removable media>:\wsxg.pif
- <Drive name for removable media>:\autorun.inf
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DisableNotifications' = '00000001'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\ctfmon.exe' = '<SYSTEM32>\ctfmon.exe:*:Enabled:ipsec'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'DoNotAllowExceptions' = '00000000'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\1a543.exe' = '%TEMP%\1a543.exe:*:Enabled:ipsec'
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile] 'EnableFirewall' = '00000000'
To complicate detection of its presence in the operating system,
forces the system hide from view:
blocks the following features:
- User Account Control (UAC)
- Windows Security Center
Creates and executes the following:
Injects code into
the following system processes:
a large number of user processes.
Modifies file system :
Creates the following files:
- %TEMP%\btmj.exe
- %TEMP%\winimojnm.exe
- C:\qrvody.pif
- C:\autorun.inf
- <DRIVERS>\eskos.sys
- %TEMP%\wingucno.exe
- %TEMP%\1a543.exe
- %TEMP%\svcqid.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\wsxg.pif
- C:\autorun.inf
- C:\qrvody.pif
Deletes the following files:
- %TEMP%\winimojnm.exe
- %TEMP%\btmj.exe
- %TEMP%\1a543.exe
- %TEMP%\wingucno.exe
- %TEMP%\svcqid.exe
- <DRIVERS>\eskos.sys
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