ThreatExpert Report: Virus.Win32.Virut.ce, W32/Voterai.worm.b, Worm:Win32/Voterai..

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Submission Summary:

Submission details:

Submission received: 28 August 2012, 10:02:35
Processing time: 8 min 40 sec
Submitted sample:

File MD5: 0x82983801CE10E5FC0DC9E3EF4A6F6C3C
File SHA-1: 0x98942D27CB6AE149B172812956E6C30BC8B1C8AB
Filesize: 335,361 bytes
Alias:

Virus.Win32.Virut.ce [Kaspersky Lab]
W32/Voterai.worm.b [McAfee]
Worm:Win32/Voterai [Microsoft]
Trojan.NSIS.StartPage [Ikarus]
Win32/Voter.worm.163840 [AhnLab]

Technical Details:

Possible Security Risk

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 files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%DesktopDir%\Raila Odinga.gif	51,720 bytes	MD5: 0xE77A19D768CFB35418EB8EDE8AB1FB62 SHA-1: 0xB703152CBFE1E7615CC31EF72E09550C22AA877E	(not available)
2	%Temp%\nsa2.tmp\System.dll %Temp%\nss5E.tmp\System.dll	10,240 bytes	MD5: 0xED228603BF5D6BA382B59274DBA35A0A SHA-1: 0x037D40E0399902B5119D48995DFD2E96BC6DE9A4	(not available)
3	%Programs%\Startup\[filename of the sample #1 without extension].lnk	597 bytes	MD5: 0xFEACE763F73E3DB720A70C6FBFBAAB07 SHA-1: 0x886534712DDA40F0AB30D155397F7D3B8BDAC373	(not available)
4	%System%\drivers\[filename of the sample #1] [file and pathname of the sample #1]	335,361 bytes	MD5: 0x82983801CE10E5FC0DC9E3EF4A6F6C3C SHA-1: 0x98942D27CB6AE149B172812956E6C30BC8B1C8AB	Virus.Win32.Virut.ce [Kaspersky Lab] W32/Voterai.worm.b [McAfee] Worm:Win32/Voterai [Microsoft] Trojan.NSIS.StartPage [Ikarus] Win32/Voter.worm.163840 [AhnLab]

Notes:

%DesktopDir% is a variable that refers to the file system directory used to physically store file objects on the desktop. A typical path is C:\Documents and Settings\[UserName]\Desktop.
%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).
%Programs% is a variable that refers to the file system directory that contains the user's program groups. A typical path is C:\Documents and Settings\[UserName]\Start Menu\Programs.
%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 directories were created:

%Temp%\nss5E.tmp
%Temp%\nsa2.tmp

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	507,904 bytes
[filename of the sample #1]	%System%\drivers\[filename of the sample #1]	507,904 bytes
[generic host process]	[generic host process filename]	45,056 bytes

Notes:

[generic host process filename] is a full path filename of [generic host process].

Registry Modifications

The newly created Registry Value is:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]

(Default) = "%System%\drivers\[filename of the sample #1 without extension]"

Other details

To mark the presence in the system, the following Mutex object was created:

ZAOP

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