Submission Summary:

• Submission details:
• Submission received: 29 February 2008, 08:41:44
• Processing time: 3 min 25 sec
• Submitted sample:
• File MD5: 0xBCD566D5C8CC7E0A931ABAFB04B684E5
• File SHA-1: 0xC3930EA65162D3CCFA01481EC5156B027FB3B97B
• Filesize: 40,960 bytes
• Alias:
• TrojanSpy.Bancos.AAM [PCTools]
• Trojan-Spy.Win32.Bancos.aam [Kaspersky Lab]
• PWS-Banker.gen.bw [McAfee]
• TSPY_BANKRYPT.X [Trend Micro]

• 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.
Downloads/requests other files from Internet.
Creates a startup registry entry.
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	Trojan-Spy.Zbot is a rootkit trojan which steals online banking information and downloads other malware as well. It opens backdoors on infected computer to allow malicious attacker unauthorized access.

• 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%\ntos.exe	162,816 bytes	MD5: 0x9C6EDC84F4B50E71E0CEF73D43A9DF90 SHA-1: 0xC16A6E6039B5438D33AEF59236908FC3DEDC48C4	TrojanSpy.Bancos.AAM [PCTools] Trojan-Spy.Win32.Bancos.aam [Kaspersky Lab] PWS-Banker.gen.bw [McAfee] TSPY_BANKRYPT.X [Trend Micro]
2	[file and pathname of the sample #1]	40,960 bytes	MD5: 0xBCD566D5C8CC7E0A931ABAFB04B684E5 SHA-1: 0xC3930EA65162D3CCFA01481EC5156B027FB3B97B	TrojanSpy.Bancos.AAM [PCTools] Trojan-Spy.Win32.Bancos.aam [Kaspersky Lab] PWS-Banker.gen.bw [McAfee] TSPY_BANKRYPT.X [Trend Micro]
3	%System%\wsnpoem\audio.dll	101 bytes	MD5: 0xC2C07BA42CA4E70A3EDD731B546C5BE5 SHA-1: 0x2EE30733131C9386EC1676D9853C1E0B040EDE2D	(not available)
4	%System%\wsnpoem\video.dll	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)

• 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:
• %System%\wsnpoem

Memory Modifications

• There was a new process created in the system:

• 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	4,096 bytes
lsass.exe	%System%\lsass.exe	4,096 bytes
svchost.exe	%System%\svchost.exe	4,096 bytes
svchost.exe	%System%\svchost.exe	4,096 bytes
svchost.exe	%System%\svchost.exe	4,096 bytes
svchost.exe	%System%\svchost.exe	4,096 bytes
svchost.exe	%System%\svchost.exe	4,096 bytes
alg.exe	%System%\alg.exe	4,096 bytes

Registry Modifications

• The newly created Registry Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Network]
• UID = "%ComputerName%_0001C56E"
• [HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer]
• {6780A29E-6A18-0C70-1DFF-1610DDE00108} = F7 09 F2 0D
• {F710FA10-2031-3106-8872-93A2B5C5C620} = F7 09 F2 0D
• [HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Run]
• userinit = "%System%\ntos.exe"

so that ntos.exe runs every time Windows starts

• The following Registry Values were modified:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
• Userinit = "%System%\userinit.exe,%System%\ntos.exe,"

so that ntos.exe runs every time Windows starts

• [HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
• Cookies = "%System%\config\systemprofile\Cookies"
• Cache = "%System%\config\systemprofile\Local Settings\Temporary Internet Files"
• History = "%System%\config\systemprofile\Local Settings\History"

Other details

• To mark the presence in the system, the following Mutex objects were created:
• __SYSTEM__91C38905__
• __SYSTEM__23D80F10__

• The data identified by the following URL was then requested from the remote web server:
• http://vampirings.com/forum/cfg.bin