ThreatExpert Report: RealAV, Trojan-Downloader.Win32.FraudLoad.vkbk, Mal/FakeVirPk-A, Mal/TibsPk-A..

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Submission Summary:

Submission details:

Submission received: 17 February 2009, 03:11:51
Processing time: 6 min 50 sec
Submitted sample:

File MD5: 0x890BF32B34B7ABAB7AA7EA049215C429
File SHA-1: 0x8C311A8B6096914F758BCAF82ACA465BCC885110
Filesize: 73,222 bytes
Alias:

RealAV [Symantec]
Trojan-Downloader.Win32.FraudLoad.vkbk [Kaspersky Lab]
Mal/FakeVirPk-A, Mal/TibsPk-A [Sophos]
TrojanDownloader:Win32/Renos.GN [Microsoft]
Trojan-Downloader.Win32.Renos [Ikarus]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Modifies some system settings that may have negative impact on overall system security state.
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! Characteristics of the following security risks were identified in the system:

Security Risk	Description
Adware.AdMedia	AdMedia is a Browser Helper Object which hooks to Internet Explorer and contacts various websites to download additional malware while Internet Explorere is open.
Adware.Component.Generic	Common Components that may be used by AdMedia, Adware.Allsum, Adware.Agent.BN, Trojan.Downloader.VideoCach and other adwares.

Attention! The following threat category was identified:

Threat Category	Description
	A program that downloads files to the local computer that may represent security risk

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%ProgramFiles%\XPPoliceAntivirus\setup.dat	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
2	%Windir%\iehost.dll	20,480 bytes	MD5: 0x032E4630D0942E10768A12863664748D SHA-1: 0x519BBB6FF4560F8A5BC767C6297672FA52408DE2	RealAV [Symantec] not-a-virus:FraudTool.Win32.Agent.jc [Kaspersky Lab] Generic PUP.x [McAfee] Troj/FakeAV-KT [Sophos] Trojan:Win32/Tibs.gen!lds [Microsoft] Trojan.Win32.Tibs [Ikarus]
3	[file and pathname of the sample #1]	73,222 bytes	MD5: 0x890BF32B34B7ABAB7AA7EA049215C429 SHA-1: 0x8C311A8B6096914F758BCAF82ACA465BCC885110	RealAV [Symantec] Trojan-Downloader.Win32.FraudLoad.vkbk [Kaspersky Lab] Mal/FakeVirPk-A, Mal/TibsPk-A [Sophos] TrojanDownloader:Win32/Renos.GN [Microsoft] Trojan-Downloader.Win32.Renos [Ikarus]

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 directory was created:

%ProgramFiles%\XPPoliceAntivirus

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]	159,744 bytes
[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 system service was modified:

Service Name	Display Name	New Status	Service Filename
wscsvc	Security Center	"Stopped"	%System%\svchost.exe -k netsvcs

Notes:

%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).

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b6b571fb-b71d-449c-ad70-82e966328795}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b6b571fb-b71d-449c-ad70-82e966328795}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b6b571fb-b71d-449c-ad70-82e966328795}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b6b571fb-b71d-449c-ad70-82e966328795}\Programmable
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b6b571fb-b71d-449c-ad70-82e966328795}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b6b571fb-b71d-449c-ad70-82e966328795}\VersionIndependentProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\TypeLib
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{16406580-14CE-4441-B904-AD56CC8064CA}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{16406580-14CE-4441-B904-AD56CC8064CA}\1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{16406580-14CE-4441-B904-AD56CC8064CA}\1.0\0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{16406580-14CE-4441-B904-AD56CC8064CA}\1.0\0\win32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{16406580-14CE-4441-B904-AD56CC8064CA}\1.0\FLAGS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{16406580-14CE-4441-B904-AD56CC8064CA}\1.0\HELPDIR
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinApp.WinSafe
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinApp.WinSafe\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinApp.WinSafe\CurVer
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinApp.WinSafe.1
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinApp.WinSafe.1\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{b6b571fb-b71d-449c-ad70-82e966328795}
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b6b571fb-b71d-449c-ad70-82e966328795}\VersionIndependentProgID]

(Default) = "WinApp.WinSafe"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b6b571fb-b71d-449c-ad70-82e966328795}\TypeLib]

(Default) = "{16406580-14ce-4441-b904-ad56cc8064ca}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b6b571fb-b71d-449c-ad70-82e966328795}\ProgID]

(Default) = "WinApp.WinSafe.1"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b6b571fb-b71d-449c-ad70-82e966328795}\InprocServer32]

(Default) = "%Windir%\iehost.dll"
ThreadingModel = "Apartment"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{b6b571fb-b71d-449c-ad70-82e966328795}]

(Default) = "WinSafe Class"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\TypeLib]

(Default) = "{16406580-14CE-4441-B904-AD56CC8064CA}"
Version = "1.0"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\ProxyStubClsid32]

(Default) = "{00020420-0000-0000-C000-000000000046}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}\ProxyStubClsid]

(Default) = "{00020420-0000-0000-C000-000000000046}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{967A494A-6AEC-4555-9CAF-FA6EB00ACF91}]

(Default) = "_IBhoAppEvents"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\TypeLib]

(Default) = "{16406580-14CE-4441-B904-AD56CC8064CA}"
Version = "1.0"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\ProxyStubClsid32]

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

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}\ProxyStubClsid]

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

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{9692BE2F-EB8F-49D9-A11C-C24C1EF734D5}]

(Default) = "IBhoApp"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{16406580-14CE-4441-B904-AD56CC8064CA}\1.0\0\win32]

(Default) = "%Windir%\iehost.dll"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{16406580-14CE-4441-B904-AD56CC8064CA}\1.0\HELPDIR]

(Default) = "%Windir%\"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{16406580-14CE-4441-B904-AD56CC8064CA}\1.0\FLAGS]

(Default) = "0"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{16406580-14CE-4441-B904-AD56CC8064CA}\1.0]

(Default) = "WinSafe 1.0 Type Library"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinApp.WinSafe\CurVer]

(Default) = "WinApp.WinSafe.1"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinApp.WinSafe\CLSID]

(Default) = "{b6b571fb-b71d-449c-ad70-82e966328795}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinApp.WinSafe]

(Default) = "WinSafe Class"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinApp.WinSafe.1\CLSID]

(Default) = "{b6b571fb-b71d-449c-ad70-82e966328795}"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WinApp.WinSafe.1]

(Default) = "WinSafe Class"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center]

AntiVirusDisableNotify = "1"
FirewallDisableNotify = "1"
UpdatesDisableNotify = "1"

to disable notification of firewall, antivirus and/or update status through the Windows Security Center

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{b6b571fb-b71d-449c-ad70-82e966328795}]

NoExplorer = 0x00000001

[HKEY_CURRENT_USER\Control Panel\don't load]

scui.cpl = "No"
wscui.cpl = "No"

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System]

DisableTaskMgr = "1"
DisableRegistryTools = "1"

to prevent users from starting Task Manager (Taskmgr.exe)

to disable the Windows registry editors (Regedt32.exe and Regedit.exe)

The following Registry Value was deleted:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center]

AntiVirusDisableNotify = 0x00000001
FirewallDisableNotify = 0x00000001
UpdatesDisableNotify = 0x00000001

Other details

The data identified by the following URL was then requested from the remote web server:

http://89.149.194.188/setup.dat

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