Submission Summary:

• Submission details:
• Submission received: 1 December 2009, 20:37:10
• Processing time: 8 min 38 sec
• Submitted sample:
• File MD5: 0x731B995904359D0DA91AFAC69538B708
• File SHA-1: 0x42F936915122EB87B3E12DB63D0F0BFEEFF28DD2
• Filesize: 159,744 bytes

• Summary of the findings:

What's been found	Severity Level
Threat characteristics of ZBot - a banking trojan that disables firewall, steals sensitive financial data (credit card numbers, online banking login details), makes screen snapshots, downloads additional components, and provides a hacker with the remote access to the compromised system.
Stealth-mode characteristics common to Rootkits.
Downloads/requests other files from Internet.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

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

Security Risk	Description
Trojan-Spy.Zbot.YETH	Trojan-Spy.Zbot.YETH is a rootkit trojan which steals online banking information and downloads other malware as well.

• Attention! The following threat categories were identified:

Threat Category	Description
	A keylogger program that can capture all user keystrokes (including confidential details such username, password, credit card number, etc.)
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment
	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%\Cerberus\server.exe %Windir%\Temp\1.tmp	642,048 bytes	MD5: 0x3318FEE7D6E51D63FB9CC16D8174ABA2 SHA-1: 0x381DA88DEB85EC82735498BC0B316D8E66FD41FD	Mal/Behav-328, Mal/Behav-009 [Sophos] Win-Trojan/Buzus.219648.J [AhnLab] packed with PE_Patch.UPX [Kaspersky Lab]
2	[file and pathname of the sample #1]	159,744 bytes	MD5: 0x731B995904359D0DA91AFAC69538B708 SHA-1: 0x42F936915122EB87B3E12DB63D0F0BFEEFF28DD2	(not available)
3	%System%\sdra64.exe	251,392 bytes	MD5: 0x26C3974231C1898A8A7ED2FD941BA2D6 SHA-1: 0x9080BD884B13633F88CA8BA752F71BCB3F0B1903	(not available)

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

• Attention! The following hidden files were created in the system:

• Attention! The following hidden directories were created:
• %System%\Cerberus
• %System%\lowsec

Memory Modifications

• There were new memory pages created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
services.exe	%System%\services.exe	90,112 bytes
lsass.exe	%System%\lsass.exe	90,112 bytes
svchost.exe	%System%\svchost.exe	90,112 bytes
svchost.exe	%System%\svchost.exe	90,112 bytes
svchost.exe	%System%\svchost.exe	90,112 bytes
svchost.exe	%System%\svchost.exe	90,112 bytes
svchost.exe	%System%\svchost.exe	90,112 bytes
alg.exe	%System%\alg.exe	90,112 bytes
IEXPLORE.EXE	%ProgramFiles%\internet explorer\iexplore.exe	90,112 bytes
IEXPLORE.EXE	%ProgramFiles%\internet explorer\iexplore.exe	585,728 bytes
IEXPLORE.EXE	%ProgramFiles%\internet explorer\iexplore.exe	802,816 bytes
IEXPLORE.EXE	%ProgramFiles%\internet explorer\iexplore.exe	585,728 bytes
IEXPLORE.EXE	%ProgramFiles%\internet explorer\iexplore.exe	802,816 bytes

• 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_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\{19127AD2-394B-70F5-C650-B97867BAA1F7}
• HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\{43BF8CD1-C5D5-2230-7BB2-98F22C2B7DC6}
• HKEY_USERS\.DEFAULT\Software\Microsoft\Protected Storage System Provider
• HKEY_USERS\.DEFAULT\Software\Cerberus
• HKEY_CURRENT_USER\Software\Cerberus

• The newly created Registry Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Network]
• UID = "%ComputerName%_0001C2AF"
• [HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\{19127AD2-394B-70F5-C650-B97867BAA1F7}]
• {23343233-2C66-3B33-3432-343233343233} = F8 0D F4 0E
• {4A7B14CC-C724-021B-BF8A-9F5016819217} = 30 09 F2 0D
• [HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\{43BF8CD1-C5D5-2230-7BB2-98F22C2B7DC6}]
• {3039636B-5F3D-6C64-6675-696870667265} = F7 09 F2 0D
• {33373039-3132-3864-6B30-303233343434} = 47 09 F2 0D
• [HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
• ProxyEnable = 0x00000000
• [HKEY_USERS\.DEFAULT\Software\Cerberus]
• FirstExecution = "12/01/2009"
• FileName = "Dlzcs1JtFiFdifAOxfQDRfRiNiFex2oYq9cmudzeV4j4npFyweHo"
• [HKEY_CURRENT_USER\Software\Cerberus]
• FirstExecution = "12/01/2009"
• FileName = "j9THkJ4ev9PpDuhKP5/3wlGDN3Ven02HGGsGJdupgBjUc/cyAGbE"

• The following Registry Values were modified:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
• Userinit =
• [HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
• Cookies =
• History =

Other details

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

• The data identified by the following URLs was then requested from the remote web server:
• http://emcon.biz/Bot/config.bin
• http://emcon.biz/Bot/gate.php
• http://emcon.biz/Cerberus-Server.exe
• http://emcon.biz/Bot/ip.php