ThreatExpert Report: Trojan.Zbot!gen2, Trojan-Spy.Win32.Zbot.gen

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Submission Summary:

Submission details:

Submission received: 4 November 2009, 03:59:33
Processing time: 5 min 50 sec
Submitted sample:

File MD5: 0xC8D3817BC56E52FCA2A932C1537F4E6A
File SHA-1: 0xACF54C8195C547B80BE04A0BCDB813512AF45514
Filesize: 107,520 bytes
Alias:

Trojan.Zbot!gen2 [Symantec]
Trojan-Spy.Win32.Zbot.gen [Kaspersky Lab]

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 file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	[file and pathname of the sample #1] %System%\sdra64.exe	107,520 bytes	MD5: 0xC8D3817BC56E52FCA2A932C1537F4E6A SHA-1: 0xACF54C8195C547B80BE04A0BCDB813512AF45514	Trojan.Zbot!gen2 [Symantec] Trojan-Spy.Win32.Zbot.gen [Kaspersky Lab]

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).

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

#	Filename(s)	File Size	File Hash
1	%System%\lowsec\local.ds	59,730 bytes	MD5: 0x8290B35D499440054696C70D77989FA6 SHA-1: 0x9D48A8EAC06782E062DA708A48CEE76664BD572C
2	%System%\lowsec\user.ds	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709

Attention! The following hidden directory was created:

%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	126,976 bytes
lsass.exe	%System%\lsass.exe	126,976 bytes
svchost.exe	%System%\svchost.exe	126,976 bytes
svchost.exe	%System%\svchost.exe	126,976 bytes
svchost.exe	%System%\svchost.exe	126,976 bytes
svchost.exe	%System%\svchost.exe	126,976 bytes
svchost.exe	%System%\svchost.exe	126,976 bytes
alg.exe	%System%\alg.exe	126,976 bytes
IEXPLORE.EXE	%ProgramFiles%\internet explorer\iexplore.exe	126,976 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

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Network]

UID = "%ComputerName%_0001BFFF"

[HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\{19127AD2-394B-70F5-C650-B97867BAA1F7}]

{23343233-2C66-3B33-3432-343233343233} = F6 14 F4 0E
{33323038-2829-5F2A-3039-333033333333} = F7 09 F2 0D
{56567418-D7F8-56F7-9F40-AAC0B2EAD5C3} = 0C 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
{33323038-2829-5F2A-3039-333033333333} = F7 09 F2 0D

[HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings]

ProxyEnable = 0x00000000

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:

Remote Host	Port Number
113.105.152.215	80

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

http://hjgcx7xhjsl4.com/rst/gate.php
http://hjgcx7xhjsl4.com/rst/tretpnt.bin
http://www.whatsmyipaddress.com/

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