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Win32.HLLW.Autoruner1.24398

Added to the Dr.Web virus database: 2012-08-05

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'bdv' = 'C:\RECYCLER\S-1-5-21-2052111302-484763869-725345543-1003\BDV\bdv.exe'
Creates the following files on removable media:
  • <Drive name for removable media>:\aUtoRuN.inF
Malicious functions:
Executes the following:
  • <SYSTEM32>\attrib.exe +s +h +r +a e:\Received\*.*
  • <SYSTEM32>\attrib.exe +s +h +r +a e:\Videoc~1\*.*
  • <SYSTEM32>\attrib.exe +s +h +r +a e:\Sounds\*.*
  • <SYSTEM32>\attrib.exe +s +h +r +a e:\Mp3\*.*
  • <SYSTEM32>\xcopy.exe C:\RECYCLER\S-1-5-21-2052111302-484763869-725345543-1003\BDV\*.* e:\ /h /k /c /e /y
  • <SYSTEM32>\attrib.exe +s +h +r +a C:\RECYCLER\S-1-5-21-2052111302-484763869-725345543-1003\BDV\Welcom~1
  • <SYSTEM32>\attrib.exe +s +h +r +a e:\Audio\*.*
  • <SYSTEM32>\attrib.exe +s +h +r +a e:\Photos\*.*
  • <SYSTEM32>\attrib.exe +s +h +r +a e:\Music\*.*
  • <SYSTEM32>\wscript.exe "C:\RECYCLER\S-1-5-21-2052111302-484763869-725345543-1003\bdv.vbs"
  • <SYSTEM32>\attrib.exe +s +h +r +a C:\RECYCLER\S-1-5-21-2052111302-484763869-725345543-1003\BDV\*.*
  • <SYSTEM32>\cmd.exe /c ""%TEMP%\1.tmp\BDv.bat" "
  • <SYSTEM32>\xcopy.exe BDV.exe C:\RECYCLER\S-1-5-21-2052111302-484763869-725345543-1003\BDV\ /h /k /y
  • <SYSTEM32>\attrib.exe +s +h +r +a e:\Video\*.*
  • <SYSTEM32>\attrib.exe +s +h +r +a e:\Videos\*.*
  • <SYSTEM32>\attrib.exe +s +h +r +a e:\MyMusi~1
  • <SYSTEM32>\attrib.exe +s +h +r +a e:\MyMusi~1\*.*
Modifies file system :
Creates the following files:
  • C:\RECYCLER\S-1-5-21-2052111302-484763869-725345543-1003\BDV\aUtoRuN.inF
  • C:\RECYCLER\S-1-5-21-2052111302-484763869-725345543-1003\bdv.vbs
  • %TEMP%\1.tmp\BDv.bat
Sets the 'hidden' attribute to the following files:
  • C:\RECYCLER\S-1-5-21-2052111302-484763869-725345543-1003\BDV\aUtoRuN.inF