ThreatExpert Report: Virus.Win32.Sality.gen, Mal/Sality-D, Worm:Win32/Vobfus.AC, Worm.Win32.Vobfus

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Submission Summary:

Submission details:

Submission received: 21 September 2012, 08:44:25
Processing time: 12 min 46 sec
Submitted sample:

File MD5: 0xA73756D7484D0FB5B5DB1AB33204EC3A
File SHA-1: 0x580CA0AEC02D674644FDF2AF8898C77E48CF180D
Filesize: 322,560 bytes
Alias:

Virus.Win32.Sality.gen [Kaspersky Lab]
Mal/Sality-D [Sophos]
Worm:Win32/Vobfus.AC [Microsoft]
Worm.Win32.Vobfus [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 files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%UserProfile%\huaasok.exe	322,560 bytes	MD5: 0x5011957B412FDB94992593599246EA25 SHA-1: 0x655DA477A08E735DCA5B1BA9D8F92DDCB5DF157B	Virus.Win32.Sality.gen [Kaspersky Lab] Mal/Sality-D [Sophos] Worm:Win32/Vobfus.AC [Microsoft] Worm.Win32.Vobfus [Ikarus]
2	[file and pathname of the sample #1]	322,560 bytes	MD5: 0xA73756D7484D0FB5B5DB1AB33204EC3A SHA-1: 0x580CA0AEC02D674644FDF2AF8898C77E48CF180D	Virus.Win32.Sality.gen [Kaspersky Lab] Mal/Sality-D [Sophos] Worm:Win32/Vobfus.AC [Microsoft] Worm.Win32.Vobfus [Ikarus]

Note:

%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).

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]	335,872 bytes
huaasok.exe	%UserProfile%\huaasok.exe	335,872 bytes

Registry Modifications

The newly created Registry Value is:

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

huaasok = "%UserProfile%\huaasok.exe"

so that huaasok.exe runs every time Windows starts

Other details

To mark the presence in the system, the following Mutex objects were created:

uxJLpe1m
U

The following Host Names were requested from a host database:

192.5.5.241
ns4.video-shares.com9

There was registered attempt to establish connection with the remote host. The connection details are:

Remote Host	Port Number
ns4.video-shares.com9	8000

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