ThreatExpert Report: Backdoor.Trojan, not-a-virus:AdWare.Win32.Navi.y, Generic.dx, Mal/Generic-L..

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Submission Summary:

Submission details:

Submission received: 5 February 2013, 07:36:04
Processing time: 8 min 36 sec
Submitted sample:

File MD5: 0xA488ADBFC5481FCE369E9DB9CE88B985
File SHA-1: 0x84C58E357ECC1AA73E936152C4178EC77C5E6E79
Filesize: 274,432 bytes
Alias:

Backdoor.Trojan [Symantec]
not-a-virus:AdWare.Win32.Navi.y [Kaspersky Lab]
Generic.dx [McAfee]
Mal/Generic-L [Sophos]
Trojan.SuspectCRC [Ikarus]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Registers a 32-bit in-process server DLL.
Registers a Browser Helper Object (Microsoft's Internet Explorer plugin module).
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! The following threat category was identified:

Threat Category	Description
	A malicious backdoor trojan that runs in the background and allows remote access to the compromised system

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%System%\hosts.db	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
2	[file and pathname of the sample #1]	274,432 bytes	MD5: 0xA488ADBFC5481FCE369E9DB9CE88B985 SHA-1: 0x84C58E357ECC1AA73E936152C4178EC77C5E6E79	Backdoor.Trojan [Symantec] not-a-virus:AdWare.Win32.Navi.y [Kaspersky Lab] Generic.dx [McAfee] Mal/Generic-L [Sophos] Trojan.SuspectCRC [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 file was modified:

%Windir%\win.ini

Notes:

%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[generic host process]	[generic host process filename]	20,480 bytes

Notes:

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

The following modules were loaded into the address space of other process(es):

Module Name	Module Filename	Address Space Details
[filename of the sample #1]	[file and pathname of the sample #1]	Process name: [generic host process] Process filename: [generic host process filename] Address space: 0xAA0000 - 0xB56000
[filename of the sample #1]	[file and pathname of the sample #1]	Process name: [generic host process] Process filename: [generic host process filename] Address space: 0xB10000 - 0xBC6000
[filename of the sample #1]	[file and pathname of the sample #1]	Process name: IEXPLORE.EXE Process filename: %ProgramFiles%\internet explorer\iexplore.exe Address space: 0xF80000 - 0x1036000

Notes:

%ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EBF22F53-896C-48b1-9986-0891F7709EC9}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EBF22F53-896C-48b1-9986-0891F7709EC9}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EBF22F53-896C-48b1-9986-0891F7709EC9}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EBF22F53-896C-48b1-9986-0891F7709EC9}\Programmable
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EBF22F53-896C-48b1-9986-0891F7709EC9}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EBF22F53-896C-48b1-9986-0891F7709EC9}\VersionIndependentProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C66A5803-19AF-46C4-8FCB-20B45C04F3D2}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C66A5803-19AF-46C4-8FCB-20B45C04F3D2}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C66A5803-19AF-46C4-8FCB-20B45C04F3D2}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C66A5803-19AF-46C4-8FCB-20B45C04F3D2}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}\1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}\1.0\0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}\1.0\0\win32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}\1.0\FLAGS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}\1.0\HELPDIR
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SWIHOST.Blocker
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SWIHOST.Blocker\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SWIHOST.Blocker\CurVer
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SWIHOST.Blocker.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SWIHOST.Blocker.1\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{EBF22F53-896C-48b1-9986-0891F7709EC9}

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EBF22F53-896C-48b1-9986-0891F7709EC9}\VersionIndependentProgID]

(Default) = "SWIHOST.Blocker"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EBF22F53-896C-48b1-9986-0891F7709EC9}\TypeLib]

(Default) = "{07F17041-CD93-4d39-A2B6-39A49DCF8CF7}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EBF22F53-896C-48b1-9986-0891F7709EC9}\ProgID]

(Default) = "SWIHOST.Blocker.1"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EBF22F53-896C-48b1-9986-0891F7709EC9}\InprocServer32]

(Default) = "[file and pathname of the sample #1]"
ThreadingModel = "Both"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{EBF22F53-896C-48b1-9986-0891F7709EC9}]

(Default) = "Blocker Class"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C66A5803-19AF-46C4-8FCB-20B45C04F3D2}\TypeLib]

(Default) = "{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}"
Version = "1.0"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C66A5803-19AF-46C4-8FCB-20B45C04F3D2}\ProxyStubClsid32]

(Default) = "{00020424-0000-0000-C000-000000000046}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C66A5803-19AF-46C4-8FCB-20B45C04F3D2}\ProxyStubClsid]

(Default) = "{00020424-0000-0000-C000-000000000046}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{C66A5803-19AF-46C4-8FCB-20B45C04F3D2}]

(Default) = "IBlocker"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}\1.0\0\win32]

(Default) = "[file and pathname of the sample #1]"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}\1.0\HELPDIR]

(Default) = "%Windir%\system32"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}\1.0\FLAGS]

(Default) = "0"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{07F17041-CD93-4D39-A2B6-39A49DCF8CF7}\1.0]

(Default) = "swihost 1.0 Type Library"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SWIHOST.Blocker\CurVer]

(Default) = "SWIHOST.Blocker.1"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SWIHOST.Blocker\CLSID]

(Default) = "{EBF22F53-896C-48b1-9986-0891F7709EC9}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SWIHOST.Blocker]

(Default) = "Blocker Class"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SWIHOST.Blocker.1\CLSID]

(Default) = "{EBF22F53-896C-48b1-9986-0891F7709EC9}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\SWIHOST.Blocker.1]

(Default) = "Blocker Class"

Other details

Analysis of the file resources indicate the following possible countries of origin:

	China
	Taiwan

The following Host Name was requested from a host database:

192.5.5.241

The following Internet Connections were established:

Server Name	Server Port	Connect as User	Connection Password
v.soft28.com	80	(null)	(null)
voidcode.3322.org	80	(null)	(null)

The following GET requests were made:

ver.htm
data.ver
tst.htm
welcome.asp?id=31208A7229E344AB&code=343e377f77c94cd5

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