ThreatExpert Report: Trojan.Win32.Cosmu.cuk, Trojan.FakeAV, FakeAlert-SafetyCenter, Troj/BHO-OG..

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Submission Summary:

Submission details:

Submission received: 4 November 2009, 09:44:12
Processing time: 5 min 57 sec
Submitted sample:

File MD5: 0x0B3CF4C42AB247BA05247DAADDC23B30
File SHA-1: 0x51BE46D716320E632BA6F66F657CCEB48550F3AC
Filesize: 1,242,624 bytes
Alias & packer info:

Trojan.Win32.Cosmu.cuk [Kaspersky Lab]
packed with: PE_Patch.UPX [Kaspersky Lab]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Creates a startup registry entry.
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:

The new window was created, as shown below:

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Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk	Description
RogueAntiSpyware.PrivacyCenter.AJ	RogueAntiSpyware.PrivacyCenter.AJ displays fake alerts in malware payloads in order to persuade users into buying the rogue antispyware products.

Attention! The following threat category was identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	c:\SafetyCenter\ie.dll %System%\ie.dll	188,928 bytes	MD5: 0x93FA28BB594D31C347EEB67D416547C2 SHA-1: 0x23CED1D34B5F2DF11D40409017C5C31DDCFB86AF	Trojan.FakeAV [Symantec] FakeAlert-SafetyCenter [McAfee] Troj/BHO-OG [Sophos] packed with PE_Patch.UPX [Kaspersky Lab]
2	c:\SafetyCenter\main.ico	126,348 bytes	MD5: 0xA93354C61F128C3E96EA27D5C23D7CAD SHA-1: 0xE7A0CAAAC2C9D07A8F8638DB81394EEC658BEDB2	(not available)
3	c:\SafetyCenter\new.exe c:\SafetyCenter\protector.exe c:\SafetyCenter\start.exe c:\SafetyCenter\uninstall.exe [file and pathname of the sample #1]	1,242,624 bytes	MD5: 0x0B3CF4C42AB247BA05247DAADDC23B30 SHA-1: 0x51BE46D716320E632BA6F66F657CCEB48550F3AC	Trojan.Win32.Cosmu.cuk [Kaspersky Lab] packed with PE_Patch.UPX [Kaspersky Lab]
4	c:\SafetyCenter\sound.wav	241,372 bytes	MD5: 0xD62B212F9A5376CB14E85CACBEC6776D SHA-1: 0xC08ADF25A5ECD8CFE641FBF03BEAEB301CD26A15	(not available)
5	c:\SafetyCenter\tst.exe	288,868 bytes	MD5: 0x4329FFBA616E9461E66D395A8C097E65 SHA-1: 0x04A74D14E55331626E6F60768B37E046114106A0	Trojan.FakeAV [Symantec] Mal/Generic-A [Sophos] Trojan.Fakeav [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 directory was created:

c:\SafetyCenter

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	2,482,176 bytes

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{459b6bf8-5320-4c41-8833-85baedf31086}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{459b6bf8-5320-4c41-8833-85baedf31086}\DefaultIcon
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{459b6bf8-5320-4c41-8833-85baedf31086}\Shell
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{459b6bf8-5320-4c41-8833-85baedf31086}\Shell\Open
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{459b6bf8-5320-4c41-8833-85baedf31086}\Shell\Open\Command
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A73890FC-177F-4198-AE3D-C64F7D9E69D8}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A73890FC-177F-4198-AE3D-C64F7D9E69D8}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{A73890FC-177F-4198-AE3D-C64F7D9E69D8}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ControlPanel\NameSpace\{459b6bf8-5320-4c41-8833-85baedf31086}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace\{459b6bf8-5320-4c41-8833-85baedf31086}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace\{459b6bf8-5320-4c41-8833-85baedf31086}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\NetworkNeighborhood\NameSpace\{459b6bf8-5320-4c41-8833-85baedf31086}
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SafetyCenter
HKEY_CURRENT_USER\Software\SafetyCenter

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{459b6bf8-5320-4c41-8833-85baedf31086}\Shell\Open\Command]

(Default) = "c:\SafetyCenter\protector.exe"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{459b6bf8-5320-4c41-8833-85baedf31086}\DefaultIcon]

(Default) = "c:\SafetyCenter\main.ico"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{459b6bf8-5320-4c41-8833-85baedf31086}]

(Default) = "Safety Center"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A73890FC-177F-4198-AE3D-C64F7D9E69D8}\InprocServer32]

(Default) = "%System%\ie.dll"
ThreadingModel = "Apartment"

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{A73890FC-177F-4198-AE3D-C64F7D9E69D8}]

(Default) = ""

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ControlPanel\NameSpace\{459b6bf8-5320-4c41-8833-85baedf31086}]

(Default) = "Safety Center"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace\{459b6bf8-5320-4c41-8833-85baedf31086}]

(Default) = "Safety Center"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\NameSpace\{459b6bf8-5320-4c41-8833-85baedf31086}]

(Default) = "Safety Center"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\NetworkNeighborhood\NameSpace\{459b6bf8-5320-4c41-8833-85baedf31086}]

(Default) = "Safety Center"

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]

SafetyCenter = "c:\SafetyCenter\start.exe"

so that start.exe runs every time Windows starts

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\SafetyCenter]

DisplayName = "SafetyCenter"
UninstallString = "c:\SafetyCenter\uninstall.exe"

[HKEY_CURRENT_USER\Software\SafetyCenter]

imposs = ""
Exename = "c:\SafetyCenter\protector.exe"
Sound = "c:\SafetyCenter\sound.wav"
Startup = "c:\SafetyCenter\start.exe"
New = "c:\SafetyCenter\new.exe"
Licensed = "false"
boot = "3"

Other details

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

Russian Federation

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

Remote Host	Port Number
212.117.161.142	80

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

http://212.117.161.142/install.php?id=

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