Win32.HLLW.Siggen.607
Added to the Dr.Web virus database:
2014-01-22
Virus description added:
2014-01-23
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'MSN Client .NET Protocol' = 'msprcl.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
blocks the following features:
Creates and executes the following:
Executes the following:
- '<SYSTEM32>\attrib.exe' +H +S <SYSTEM32>\msprcl.exe
Searches for registry branches where third party applications store passwords:
- [<HKCU>\Software\Microsoft\MessengerService]
Modifies file system :
Creates the following files:
Sets the 'hidden' attribute to the following files:
Deletes itself.
Miscellaneous:
Searches for the following windows:
- ClassName: 'DirectUIHWND' WindowName: '(null)'
- ClassName: 'IMWindowClass' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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