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Win32.HLLW.Autoruner1.26322
Added to the Dr.Web virus database:
2012-09-20
Virus description added:
2012-10-11
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows Media Update' = '<SYSTEM32>\wmpub64.exe'
Creates the following files on removable media:
<Drive name for removable media>:\Autorun.inf
<Drive name for removable media>:\~Config.{645FF040-5081-101B-9F08-00AA002F954E}\cfg-x93051059.np
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\DomainProfile\AuthorizedApplications\List] '<SYSTEM32>\wmpub64.exe' = '<SYSTEM32>\wmpub64.exe:*:Enabled:Windows Media Update'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<SYSTEM32>\wmpub64.exe' = '<SYSTEM32>\wmpub64.exe:*:Enabled:Windows Media Update'
Creates and executes the following:
<SYSTEM32>\wmpub64.exe <Full path to virus>
Executes the following:
<SYSTEM32>\sc.exe config OutpostFirewall start= disabled
<SYSTEM32>\net1.exe stop OutpostFirewall
<SYSTEM32>\sc.exe delete OutpostFirewall
<SYSTEM32>\sc.exe stop OutpostFirewall
<SYSTEM32>\sc.exe config ekrn start= disabled
<SYSTEM32>\sc.exe delete ekrn
<SYSTEM32>\net.exe stop OutpostFirewall
Injects code into
the following system processes:
Searches for windows to
detect analytical utilities:
ClassName: 'PROCMON_WINDOW_CLASS' WindowName: 'Process Monitor - Sysinternals: www.sysinternals.com'
detect programs and games:
ClassName: 'gdkWindowToplevel' WindowName: 'The Wireshark Network Analyzer'
Hides the following processes:
<Full path to virus>
<SYSTEM32>\wmpub64.exe
Modifies file system :
Creates the following files:
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\n0x4a[1].txt
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\n0x2a[1].zip
<SYSTEM32>\wmpub64.exe
Sets the 'hidden' attribute to the following files:
Deletes itself.
Network activity:
Connects to:
'45.##.235.77':52311
'20#.#1.237.59':80
'1.##6.35.98':80
'45.##.235.76':5949
TCP:
HTTP GET requests:
20#.#1.237.59/aspnet_client/ip/n0x4a.txt
1.##6.35.98/css/n0x2a.zip
UDP:
DNS ASK 03#.#rofunda.su
DNS ASK 02#.#rofunda.su
DNS ASK fi##.#atrensis.su
Miscellaneous:
Searches for the following windows:
ClassName: 'TCPViewClass' WindowName: ''
ClassName: '#32770' WindowName: 'Regshot 1.8.2'
ClassName: 'PROCEXPL' WindowName: ''
ClassName: 'CNetmonMainFrame' WindowName: 'Microsoft Network Monitor 3.3'
ClassName: 'SmartSniff' WindowName: 'SmartSniff'
ClassName: 'CurrPorts' WindowName: 'CurrPorts'
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