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Win32.HLLW.Autoruner.56551

Added to the Dr.Web virus database: 2011-08-18

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = '<Current directory>'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Form1' = '<Full path to virus>'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
Malicious functions:
Creates and executes the following:
  • %TEMP%\tmp2.tmp.exe (downloaded from the Internet) 
  • %TEMP%\tmp3.tmp.exe (downloaded from the Internet) 
  • %TEMP%\tmp1.tmp.exe (downloaded from the Internet) 
Executes the following:
  • <SYSTEM32>\wscript.exe "%APPDATA%sc4.vbs"
Modifies file system :
Creates the following files:
  • <Current directory>\ Free Anti Virus .exe
  • <Current directory>\Avira latest updatable cracked&keygen.exe
  • <Current directory>\Office 2011 cracked.exe
  • %APPDATA%sc4.vbs
  • <Current directory>\workgroup
  • <Current directory>\ Free porn.exe
  • <Current directory>\World Of Warcraft unlimited premium crack updatable.exe
  • %TEMP%\tmp2.tmp.exe
  • %TEMP%\tmp3.tmp.exe
  • %TEMP%\tmp1.tmp.exe
  • <Current directory>\Photoshop CS5 updatable&crack&keygen.exe
  • C:\readme.exe
  • C:\autorun.exe
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
  • 'www.at###oter.com':80
  • 'dl.##opbox.com':80
TCP:
HTTP GET requests:
  • www.at###oter.com/downloads/3v.exe
  • dl.##opbox.com/u/36640168/dw/driver.exe
UDP:
  • DNS ASK wo#####up.localdomain
  • DNS ASK www.at###oter.com
  • DNS ASK dl.##opbox.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'Indicator' WindowName: ''