Win32.HLLW.Autoruner.9104
Added to the Dr.Web virus database:
2009-11-03
Virus description added:
2014-07-13
Technical Information
To ensure autorun and distribution:
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\WinSpoolSvc] 'Start' = '00000002'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
- [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\csrsc.exe' = '<SYSTEM32>\csrsc.exe:*:Enabled:Microsoft Enabled'
Creates and executes the following:
Executes the following:
- '<SYSTEM32>\dumprep.exe' 1420 -dm 7 7 %TEMP%\WERd193.dir00\explorer.exe.hdmp 16325836412028036
- '<SYSTEM32>\rundll32.exe' <SYSTEM32>\sysdm.cpl,NoExecuteProcessException %WINDIR%\explorer.exe
- '<SYSTEM32>\dumprep.exe' 1420 -dm 7 7 %TEMP%\WERd193.dir00\explorer.exe.mdmp 16325836412028024
- '<SYSTEM32>\dumprep.exe' 1108 -dm 7 7 %WINDIR%\PCHealth\ErrorRep\UserDumps\svchost.exe.20140422-231332-00.mdmp 16325836412034720
Injects code into
the following system processes:
Searches for windows to
detect programs and games:
- ClassName: 'MSNHiddenWindowClass' WindowName: '(null)'
Modifies file system :
Creates the following files:
- %TEMP%\WERd193.dir00\manifest.txt
- %TEMP%\WERd193.dir00\appcompat.txt
- <SYSTEM32>\csrsc.exe
Sets the 'hidden' attribute to the following files:
Deletes itself.
Network activity:
Connects to:
- '<Private IP address>':139
- '<Private IP address>':445
UDP:
Miscellaneous:
Searches for the following windows:
- ClassName: 'AIM_CSignOnWnd' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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