ThreatExpert Report: Win32.Virut.Gen.5, Virus.Win32.Virut.q, W32.Virut.U, W32/Virut.gen..

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Submission Summary:

Submission details:

Submission received: 12 November 2008, 04:01:57
Processing time: 6 min 17 sec
Submitted sample:

File MD5: 0x43EA10BC3DC58FABBC95BFD4E5660250
File SHA-1: 0xAF375FE5D5F639953B3A14C029E70C789626412F
Filesize: 35,328 bytes
Alias:

Win32.Virut.Gen.5 [PCTools]
W32.Virut.U [Symantec]
Virus.Win32.Virut.q [Kaspersky Lab]
W32/Virut.gen [McAfee]
PE_VIRUT.XO [Trend Micro]
W32/Vetor-A [Sophos]
Virus:Win32/Virut.AP [Microsoft]
Trojan-Downloader.Win32.VB.bbi [Ikarus]

Summary of the findings:

What's been found	Severity Level
Creates a startup registry entry.
There were some system executable files modified, which might indicate the presence of a PE-file infector.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Trojan-Downloader.Agent.BWH	Trojan-Downloader.Agent.BWH contacts a remote server in its attempt to secretly download additional threats onto affected machines.

Attention! The following threat category was identified:

Threat Category	Description
	A virus capable to modify other files by infecting, prepending, or overwriting them them with its own body

File System Modifications

The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%System%\rs32net.exe [file and pathname of the sample #1]	35,328 bytes	MD5: 0x43EA10BC3DC58FABBC95BFD4E5660250 SHA-1: 0xAF375FE5D5F639953B3A14C029E70C789626412F	Win32.Virut.Gen.5 [PCTools] W32.Virut.U [Symantec] Virus.Win32.Virut.q [Kaspersky Lab] W32/Virut.gen [McAfee] PE_VIRUT.XO [Trend Micro] W32/Vetor-A [Sophos] Virus:Win32/Virut.AP [Microsoft] Trojan-Downloader.Win32.VB.bbi [Ikarus]

Note:

%System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

The following files were modified:

[pathname with a string SHARE]\msinfo32.exe
[pathname with a string SHARE]\sapisvr.exe
%ProgramFiles%\Internet Explorer\Connection Wizard\icwconn1.exe
%ProgramFiles%\Internet Explorer\Connection Wizard\icwconn2.exe
%ProgramFiles%\Internet Explorer\Connection Wizard\icwrmind.exe
%ProgramFiles%\Internet Explorer\Connection Wizard\icwtutor.exe
%ProgramFiles%\Internet Explorer\Connection Wizard\inetwiz.exe
%ProgramFiles%\Internet Explorer\Connection Wizard\isignup.exe
%ProgramFiles%\Internet Explorer\iedw.exe
%ProgramFiles%\Internet Explorer\IEXPLORE.EXE
%ProgramFiles%\MSN\MSNIA\msniasvc.exe
%ProgramFiles%\MSN\MSNIA\prestp.exe
%ProgramFiles%\MSN\MsnInstaller\msninst.exe
%ProgramFiles%\NetMeeting\cb32.exe
%ProgramFiles%\NetMeeting\conf.exe
%ProgramFiles%\NetMeeting\wb32.exe
%ProgramFiles%\Outlook Express\msimn.exe
%ProgramFiles%\Outlook Express\oemig50.exe
%ProgramFiles%\Outlook Express\setup50.exe
%ProgramFiles%\Outlook Express\wab.exe
%ProgramFiles%\Outlook Express\wabmig.exe
%ProgramFiles%\Web Publish\WPWIZ.EXE
%ProgramFiles%\Windows Media Player\migrate.exe
%ProgramFiles%\Windows Media Player\mplayer2.exe
%ProgramFiles%\Windows Media Player\setup_wm.exe
%ProgramFiles%\Windows Media Player\wmplayer.exe
%ProgramFiles%\Windows NT\Accessories\wordpad.exe
%ProgramFiles%\Windows NT\dialer.exe
%ProgramFiles%\Windows NT\hypertrm.exe
%ProgramFiles%\Windows NT\Pinball\PINBALL.EXE
%Windir%\hh.exe
%Windir%\inf\unregmp2.exe
%Windir%\Installer\{350C97B0-3D7C-4EE8-BAA9-00BCB3D54227}\places.exe
%Windir%\Microsoft.NET\Framework\NETFXSBS10.exe
%Windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
%Windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_regbrowsers.exe
%Windir%\Microsoft.NET\Framework\v2.0.50727\aspnet_regsql.exe
%Windir%\Microsoft.NET\Framework\v2.0.50727\CasPol.exe
%Windir%\Microsoft.NET\Framework\v2.0.50727\dfsvc.exe
%Windir%\Microsoft.NET\Framework\v2.0.50727\IEExec.exe
%Windir%\Microsoft.NET\Framework\v2.0.50727\InstallUtil.exe
%Windir%\Microsoft.NET\Framework\v2.0.50727\jsc.exe
%Windir%\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
%Windir%\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
%Windir%\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
%Windir%\msagent\agentsvr.exe
%Windir%\mui\muisetup.exe
%Windir%\NOTEPAD.EXE
%Windir%\pchealth\helpctr\binaries\HelpCtr.exe
%Windir%\pchealth\helpctr\binaries\HelpHost.exe
%Windir%\pchealth\helpctr\binaries\HelpSvc.exe
%Windir%\pchealth\helpctr\binaries\HscUpd.exe
%Windir%\pchealth\helpctr\binaries\msconfig.exe
%Windir%\pchealth\helpctr\binaries\notiflag.exe
%Windir%\pchealth\UploadLB\Binaries\UploadM.exe
%Windir%\regedit.exe
%System%\accwiz.exe
%System%\actmovie.exe
%System%\ahui.exe
%System%\arp.exe
%System%\asr_fmt.exe
%System%\asr_ldm.exe
%System%\asr_pfu.exe
%System%\at.exe
%System%\atmadm.exe
%System%\attrib.exe
%System%\auditusr.exe
%System%\blastcln.exe
%System%\bootcfg.exe
%System%\bootok.exe
%System%\bootvrfy.exe
%System%\cacls.exe
%System%\calc.exe
%System%\charmap.exe
%System%\chkdsk.exe
%System%\chkntfs.exe
%System%\cidaemon.exe
%System%\cipher.exe
%System%\cisvc.exe
%System%\ckcnv.exe
%System%\cleanmgr.exe
%System%\clean_all.exe
%System%\cliconfg.exe
%System%\clipbrd.exe
%System%\clipsrv.exe
%System%\cmd.exe
%System%\cmdl32.exe
%System%\cmmon32.exe
%System%\cmstp.exe
%System%\Com\comrepl.exe
%System%\Com\comrereg.exe
%System%\comp.exe
%System%\compact.exe
%System%\conime.exe
%System%\control.exe
%System%\convert.exe
%System%\cscript.exe
%System%\ctfmon.exe
%System%\dcomcnfg.exe
%System%\ddeshare.exe

Notes:

%ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.
%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

The following directories were created:

c:\System Volume Information\.
c:\System Volume Information\..

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
rs32net.exe	%System%\rs32net.exe	N/A

Registry Modifications

The newly created Registry Value is:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

rs32net = "%System%\rs32net.exe"

so that rs32net.exe runs every time Windows starts

Other details

The following Host Name was requested from a host database:

proxim.ircgalaxy.pl

There were registered attempts to establish connection with the remote hosts. The connection details are:

Remote Host	Port Number
208.66.195.71	80
216.195.55.50	80

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