Submission Summary:

• Submission details:
• Submission received: 13 September 2012, 17:38:10
• Processing time: 9 min 19 sec
• Submitted sample:
• File MD5: 0x9CC2C082DA38D8B1EBD58A89A80E7912
• File SHA-1: 0xB6166B2D394C85EC88AB96F868CD13375E3C4D03
• Filesize: 384,376 bytes
• Alias:
• Trojan.Gen [Symantec]
• Trojan-Spy.Win32.Zbot.ewmx [Kaspersky Lab]
• PWS-Zbot.gen.alu [McAfee]
• PWS:Win32/Zbot.gen!AF [Microsoft]
• Trojan.Injector [Ikarus]

• Summary of the findings:

What's been found	Severity Level
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

• 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

File System Modifications

• The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AppData%\Riokdu\awawu.exe	384,376 bytes	MD5: 0xF8857E469E1E7DEE0F98A74077744B64 SHA-1: 0xC496342FCEC0887DE734C6B6906BAE9FDC965616	Trojan-Spy.Win32.Zbot.ewmx [Kaspersky Lab] PWS-Zbot.gen.alu [McAfee] PWS:Win32/Zbot.gen!AF [Microsoft]
2	%AppData%\ubzada.riy	1,322 bytes	MD5: 0x3B6837A82A3C4D9E7D05429F263757A8 SHA-1: 0x7328AE26BA602839D19594673D14CBB15D5D2143	(not available)
3	%Temp%\tmp66b9f152.bat	168 bytes	MD5: 0xA34902DE06A820AD19302FE633D4FF46 SHA-1: 0x801A6458840C384F9FD553A910D09F28D30F8CE4	(not available)
4	[file and pathname of the sample #1]	384,376 bytes	MD5: 0x9CC2C082DA38D8B1EBD58A89A80E7912 SHA-1: 0xB6166B2D394C85EC88AB96F868CD13375E3C4D03	Trojan.Gen [Symantec] Trojan-Spy.Win32.Zbot.ewmx [Kaspersky Lab] PWS-Zbot.gen.alu [McAfee] PWS:Win32/Zbot.gen!AF [Microsoft] Trojan.Injector [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.
• %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 directory was created:
• %AppData%\Riokdu

Memory Modifications

• There were new processes created in the system:

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

Process Name	Process Filename	Allocated Size
cmd.exe	%System%\cmd.exe	278,528 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).

Registry Modifications

• The following Registry Keys were created:
• HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Privacy
• HKEY_CURRENT_USER\Software\Microsoft\Ymxo

• The newly created Registry Values are:
• [HKEY_CURRENT_USER\Identities]
• Identity Login = 0x00098053
• [HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Privacy]
• CleanCookies = 0x00000000
• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
• {3DFA1AE4-115C-AD7B-A6BA-A75086AF8442} = ""%AppData%\Riokdu\awawu.exe""

so that awawu.exe runs every time Windows starts

• [HKEY_CURRENT_USER\Software\Microsoft\Ymxo]
• dj380hf = "RiajYYpfZ35ztk5aRyGgVeNo"
• a7675cd = 0x61D32664
• 1ieiddg9 = 86 63 D3 61 4F 3C 0E 7E 1D B6 3A 5A

• The following Registry Values were modified:
• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0]
• 1609 =
• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1]
• 1406 =
• 1609 =
• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2]
• 1609 =
• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3]
• 1406 =
• 1609 =
• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4]
• 1406 =
• 1609 =

Other details

• To mark the presence in the system, the following Mutex object was created:
• Local\{FA4803F7-084F-6AC9-A6BA-A75086AF8442}