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Win32.HLLW.Autoruner.52201
Added to the Dr.Web virus database:
2011-06-21
Virus description added:
2011-06-22
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = 'file:///C:/Documents and Settings/%USERNAME%/Application Data/Microsoft/Protect/Credentials/wmpnetvk.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft' = 'file:///C:/af32d3b0/<Virus name>.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft® Windows® Operating System' = '%APPDATA%\Microsoft\Protect\Credentials\taskhostt.exe'
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\autorun.exe
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
Windows Task Manager (Taskmgr)
Creates and executes the following:
%TEMP%\tmp1.tmp.exe (downloaded from the Internet)
%TEMP%\tmp2.tmp.exe (downloaded from the Internet)
%APPDATA%\Microsoft\Protect\Credentials\taskhostt.exe
%APPDATA%\Microsoft\Protect\Credentials\wmpnetvk.exe
Modifies file system :
Creates the following files:
%TEMP%\tmp1.tmp.exe
%TEMP%\tmp2.tmp.exe
%APPDATA%\Microsoft\Protect\Credentials\taskhostt.exe
%APPDATA%\Microsoft\Protect\Credentials\wmpnetvk.exe
%APPDATA%\Microsoft\Protect\Credentials\wmpnetvk.exe:ZONE.identifier
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\autorun.exe
%APPDATA%\Microsoft\Protect\Credentials\wmpnetvk.exe
Network activity:
Connects to:
TCP:
HTTP GET requests:
zi###.no-ip.org/lsass.exe
UDP:
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
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