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Win32.HLLW.Autoruner.51307

Added to the Dr.Web virus database: 2011-06-05

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'C575E8A8-16E2-4C95-AE36-0BA9C90710B0' = '<LS_APPDATA>\C575E8A8-16E2-4C95-AE36-0BA9C90710B0\rundll32.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\alh.dll
  • <Drive name for removable media>:\Angelina.exe
  • <Drive name for removable media>:\RCX1.tmp
  • <Drive name for removable media>:\Shortcut to f.lnk
  • <Drive name for removable media>:\alh.exe
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\Shortcut to e.lnk
Malicious functions:
Creates and executes the following:
  • <LS_APPDATA>\C575E8A8-16E2-4C95-AE36-0BA9C90710B0\rundll32.exe 
Modifies file system :
Creates the following files:
  • <LS_APPDATA>\C575E8A8-16E2-4C95-AE36-0BA9C90710B0\rundll32.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\alh.dll
  • <LS_APPDATA>\C575E8A8-16E2-4C95-AE36-0BA9C90710B0\rundll32.exe
  • <Drive name for removable media>:\alh.exe
Deletes the following files:
  • <Drive name for removable media>:\Angelina.exe
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''