Submission Summary:

• Submission details:
• Submission received: 20 September 2012, 21:51:41
• Processing time: 7 min 50 sec
• Submitted sample:
• File MD5: 0x622E5E9F148B22B8CCCC2894FD8DCDFD
• File SHA-1: 0xBDFF6A89DB97764FCBECB81385AC3998EE6B60F9
• Filesize: 289,281 bytes
• Alias:
• Trojan.Gen [Symantec]
• Trojan.Win32.Zapchast.adjg [Kaspersky Lab]
• PWS-Zbot.gen.aft [McAfee]
• PWS:Win32/Zbot [Microsoft]
• Trojan.Win32.Zapchast [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 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%\Yxgaad\uslyy.exe	289,281 bytes	MD5: 0x88B9A47190F2E31D0849D63E0D863E16 SHA-1: 0xBFE31C11D9E5E55119EB86BD3F751BA461937768	Trojan.Gen [Symantec] Trojan.Win32.Zapchast.adjg [Kaspersky Lab] PWS-Zbot.gen.aft [McAfee] PWS:Win32/Zbot [Microsoft] Trojan.Win32.Zapchast [Ikarus]
2	%AppData%\qenowa.jyr	1,322 bytes	MD5: 0x55E761CA7596AC7843357F67CC6C4850 SHA-1: 0x3BAD75B5FF701D8034A126287BA9CC229C055605	(not available)
3	%Temp%\tmp430b78b6.bat	168 bytes	MD5: 0xE69B4F4E34B997185A2BAB4821F183B0 SHA-1: 0x5F631D785E18C7C04969AE1DCB8AA33946C3858D	(not available)
4	[file and pathname of the sample #1]	289,281 bytes	MD5: 0x622E5E9F148B22B8CCCC2894FD8DCDFD SHA-1: 0xBDFF6A89DB97764FCBECB81385AC3998EE6B60F9	Trojan.Gen [Symantec] Trojan.Win32.Zapchast.adjg [Kaspersky Lab] PWS-Zbot.gen.aft [McAfee] PWS:Win32/Zbot [Microsoft] Trojan.Win32.Zapchast [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%\Yxgaad

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\Eppuyf

• 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%\Yxgaad\uslyy.exe""

so that uslyy.exe runs every time Windows starts

• [HKEY_CURRENT_USER\Software\Microsoft\Eppuyf]
• 21e6add7 = 6B 74 CF A5 34 80 FB A1
• 1h26h1hh = 40 74 BA A5
• f338ha9 = "aka6pa3llaHqMLpD"

• 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}

• The following Host Name was requested from a host database:
• 192.5.5.241