ThreatExpert Report: Trojan.Gen, Mal/Behav-116, Trojan-PWS.Agent, Trojan.Gen.2, ZeroAccess.ex..

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Submission Summary:

Submission details:

Submission received: 25 June 2012, 14:01:09
Processing time: 9 min 40 sec
Submitted sample:

File MD5: 0x0C2800BF2910DA11EE558F34F03C5884
File SHA-1: 0xB4BEAA61AEC00B53B96F79B42DE3F71B3A0DF8E9
Filesize: 31,232 bytes
Alias & packer info:

Trojan.Gen [Symantec]
Mal/Behav-116 [Sophos]
Trojan-PWS.Agent [Ikarus]
packed with: UPX [Kaspersky Lab]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

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	%Temp%\oid.bat	71 bytes	MD5: 0xE6B031B9B7D40FA332EBC6F38B2F9F64 SHA-1: 0xD6DBFFCFCC6A26188FD8D2E5B6257AF4821FB48F	(not available)
2	[file and pathname of the sample #1]	31,232 bytes	MD5: 0x0C2800BF2910DA11EE558F34F03C5884 SHA-1: 0xB4BEAA61AEC00B53B96F79B42DE3F71B3A0DF8E9	Trojan.Gen [Symantec] Mal/Behav-116 [Sophos] Trojan-PWS.Agent [Ikarus] packed with UPX [Kaspersky Lab]

Note:

%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).

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]	106,496 bytes

Registry Modifications

The following Registry Key was created:

HKEY_CURRENT_USER\Software\WinRAR

The newly created Registry Value is:

[HKEY_CURRENT_USER\Software\WinRAR]

HWID = 7B 36 38 41 37 33 42 45 36 2D 30 43 31 42 2D 34 41 39 32 2D 42 33 42 45 2D 31 37 31 34 45 34 30 41 36 43 42 46 7D

Other details

The following Host Names were requested from a host database:

qqq.bbnt.info
arc1.co.kr

The following HTTP URLs were started reading:

http://arc1.co.kr/pd.exe
http://arc1.co.kr/1689.exe

Downloaded File Summary:

Download details:

Download retrieved: 25 June 2012 14:10:50
Processing time: 9 min 42 sec
Downloaded sample #1:

File MD5: 0x079EB5A552D4CDFDB1491A546973594F
File SHA-1: 0x1B2CF8D1649681A992AEE4BA54018A415689C9F8
Filesize: 191,488 bytes
Alias:

Trojan.Gen.2 [Symantec]
ZeroAccess.ex [McAfee]
Troj/ZAccess-CH [Sophos]
Trojan.Win32.Sirefef [Ikarus]

Downloaded sample #2:

File MD5: 0x39DA73D9C49F3CBA0C60D6F2B3576031
File SHA-1: 0x50FF26EE9B8D56463218C308B7C8463FE550C5EF
Filesize: 133,120 bytes
Alias:

Trojan.Gen [Symantec]
Mal/ZboCheMan-H [Sophos]
Trojan.SuspectCRC [Ikarus]

Summary of the findings:

What's been found	Severity Level
Produces outbound traffic.
Downloads/requests other files from Internet.
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 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	%AppData%\KB00441600.exe	133,120 bytes	MD5: 0x39DA73D9C49F3CBA0C60D6F2B3576031 SHA-1: 0x50FF26EE9B8D56463218C308B7C8463FE550C5EF	Trojan.Gen [Symantec] Mal/ZboCheMan-H [Sophos] Trojan.SuspectCRC [Ikarus]
2	%AppData%\{cbf70787-72f9-b6ef-7e3c-8c19ccb74892}\@	2,048 bytes	MD5: 0x5DC36A7726DC397F0359ED62FAB91B8C SHA-1: 0xFCA40CD9A362B6F5489305F29A68B64542FAB7BC	Mal/ZAccConf-A [Sophos]
3	%AppData%\{cbf70787-72f9-b6ef-7e3c-8c19ccb74892}\n %Windir%\Installer\{cbf70787-72f9-b6ef-7e3c-8c19ccb74892}\n	49,152 bytes	MD5: 0x2806F14F24F8EFE7613FEB11B30DC352 SHA-1: 0x8B7BA39B6554C3D3F38AF0BB88D988F96E3844CE	Trojan.Gen.2 [Symantec] ZeroAccess.ex [McAfee] Troj/ZAccess-CH [Sophos] Trojan.Crypt_s [Ikarus]
4	%Temp%\POS1.tmp	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
5	%Windir%\Installer\{cbf70787-72f9-b6ef-7e3c-8c19ccb74892}\@	2,048 bytes	MD5: 0xFD221017416632882F6CF7AD2FCD3355 SHA-1: 0x61C257B64B9A5EA83271F3E9824C1FE0AA74714B	Mal/ZAccConf-A [Sophos]
6	[file and pathname of the sample #1]	191,488 bytes	MD5: 0x079EB5A552D4CDFDB1491A546973594F SHA-1: 0x1B2CF8D1649681A992AEE4BA54018A415689C9F8	Trojan.Gen.2 [Symantec] ZeroAccess.ex [McAfee] Troj/ZAccess-CH [Sophos] Trojan.Win32.Sirefef [Ikarus]

Notes:

%AppData% is a variable that refers to the file system directory that serves as a common repository for application-specific data. A typical path is C:\Documents and Settings\[UserName]\Application Data.
%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.
%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).

The following directories were created:

%AppData%\FBDC89D4
%AppData%\{cbf70787-72f9-b6ef-7e3c-8c19ccb74892}
%AppData%\{cbf70787-72f9-b6ef-7e3c-8c19ccb74892}\L
%AppData%\{cbf70787-72f9-b6ef-7e3c-8c19ccb74892}\U
%Windir%\Installer\{cbf70787-72f9-b6ef-7e3c-8c19ccb74892}
%Windir%\Installer\{cbf70787-72f9-b6ef-7e3c-8c19ccb74892}\L
%Windir%\Installer\{cbf70787-72f9-b6ef-7e3c-8c19ccb74892}\U

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
kb00441600.exe	%AppData%\kb00441600.exe	237,568 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	237,568 bytes
[filename of the sample #2]	[file and pathname of the sample #2]	237,568 bytes

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

Process Name	Process Filename	Allocated Size
services.exe	%System%\services.exe	40,960 bytes

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).

The following system service was modified:

Service Name	Display Name	New Status	Service Filename
ALG	Application Layer Gateway Service	"Stopped"	%System%\alg.exe

Registry Modifications

The following Registry Keys were created:

HKEY_CURRENT_USER\Software\Microsoft\Windows Media Center
HKEY_CURRENT_USER\Software\Microsoft\Windows Media Center\FB119394
HKEY_CURRENT_USER\Software\Microsoft\Windows Media Center\FBDC89D4
HKEY_CURRENT_USER\Software\Classes\CLSID\{42aedc87-2188-41fd-b9a3-0c966feabec1}
HKEY_CURRENT_USER\Software\Classes\CLSID\{42aedc87-2188-41fd-b9a3-0c966feabec1}\InprocServer32

The newly created Registry Values are:

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

KB00441600.exe = ""%AppData%\KB00441600.exe""

so that KB00441600.exe runs every time Windows starts

[HKEY_CURRENT_USER\Software\Classes\CLSID\{42aedc87-2188-41fd-b9a3-0c966feabec1}\InprocServer32]

ThreadingModel = "Both"
(Default) = "%AppData%\{cbf70787-72f9-b6ef-7e3c-8c19ccb74892}\n."

The following Registry Value was modified:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{F3130CDB-AA52-4C3A-AB32-85FFC23AF9C1}\InprocServer32]

(Default) =

Other details

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

Local\M000004B8
Local\I000004B8
Local\M00000708
Local\I00000708
Local\M000000C4
Local\I000000C4
Local\M000000D0
Local\I000000D0
Local\M000000DC
Local\I000000DC

The following Internet Connection was established:

Server Name	Server Port	Connect as User	Connection Password
improvementsfolds.in	443	improvementsfolds.in	improvementsfolds.in

Outbound traffic (potentially malicious)

There was an outbound traffic produced on port 443:

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