Submission Summary:

• Submission details:
• Submission received: 11 January 2009, 17:46:00
• Processing time: 5 min 57 sec
• Submitted sample:
• File MD5: 0x7872735D1A3F2C93ED602EFC3CFE5F5C
• File SHA-1: 0xF0668A6A434D45769F30D50F84A9F79CDEA0E647
• Filesize: 37,376 bytes
• Alias:
• W32.Virut.W [Symantec]
• Virus.Win32.Virut.bw [Kaspersky Lab]
• W32/Virut.j [McAfee]
• PE_VIRUT.AP [Trend Micro]
• W32/Virut-Gen [Sophos]
• Virus:Win32/Virut.BI [Microsoft]
• Win32.Virut.U [Ikarus]

• Summary of the findings:

What's been found	Severity Level
Creates a startup registry entry.
Contains characteristics of an identified security risk.

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 file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%UserProfile%\reader_s.exe %System%\reader_s.exe [file and pathname of the sample #1]	37,376 bytes	MD5: 0x7872735D1A3F2C93ED602EFC3CFE5F5C SHA-1: 0xF0668A6A434D45769F30D50F84A9F79CDEA0E647	W32.Virut.W [Symantec] Virus.Win32.Virut.bw [Kaspersky Lab] W32/Virut.j [McAfee] PE_VIRUT.AP [Trend Micro] W32/Virut-Gen [Sophos] Virus:Win32/Virut.BI [Microsoft] Win32.Virut.U [Ikarus]

• Notes:
• %UserProfile% is a variable that specifies the current user's profile folder. By default, this is C:\Documents and Settings\[UserName] (Windows NT/2000/XP).
• %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).

Memory Modifications

• There were new processes created in the system:

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

• There was a new memory page created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
svchost.exe	%System%\svchost.exe	4,096 bytes

Registry Modifications

• The newly created Registry Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
• reader_s = "%System%\reader_s.exe"

so that reader_s.exe runs every time Windows starts

• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
• reader_s = "%UserProfile%\reader_s.exe"

so that reader_s.exe runs every time Windows starts

Other details

• The following Host Name was requested from a host database:
• panda-server.ru

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