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Win32.HLLW.Autohit.16252
Added to the Dr.Web virus database:
2017-05-05
Virus description added:
2017-05-05
Technical Information
To ensure autorun and distribution:
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\Microsoft Update.lnk
Creates the following files on removable media:
<Drive name for removable media>:\x.exe
Malicious functions:
Executes the following:
Searches for registry branches where third party applications store passwords:
[<HKLM>\Software\Valve\Steam]
[<HKCU>\Software\Valve\Steam]
Modifies file system:
Creates the following files:
%TEMP%\aut3.tmp
%TEMP%\KRZISO.exe
%TEMP%\Data.txt
%TEMP%\Hide.dll
%TEMP%\aut1.tmp
%TEMP%\rlzzwkg
%TEMP%\aut2.tmp
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\x.exe
Deletes the following files:
%TEMP%\aut2.tmp
%TEMP%\aut3.tmp
%TEMP%\aut1.tmp
%TEMP%\rlzzwkg
Network activity:
Connects to:
'cl########nload.steampowered.com':80
'wp#d':80
TCP:
HTTP GET requests:
http://cl########nload.steampowered.com/client/steam_client_win32
http://11#.#11.111.3/wpad.dat via wp#d
UDP:
DNS ASK wp#d
DNS ASK cl####3.zapto.org
DNS ASK cl########nload.steampowered.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: ''
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