Submission Summary:

• Submission details:
• Submission received: 11 September 2012, 17:13:23
• Processing time: 9 min 10 sec
• Submitted sample:
• File MD5: 0x64949FF9E177573BCF5C560277FC6F82
• File SHA-1: 0x5E45B6C352C432D2B69855AE0B4C1FF137AE9CAE
• Filesize: 334,848 bytes
• Alias:
• Trojan-Spy.Win32.Zbot.evho [Kaspersky Lab]
• PWS-Zbot.gen.alg [McAfee]
• PWS:Win32/Zbot [Microsoft]

• 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 keylogger program that can capture all user keystrokes (including confidential details such username, password, credit card number, etc.)

File System Modifications

• The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AppData%\Ykihuk\piyba.exe	334,848 bytes	MD5: 0x04D83CD02C175C5EAD47F5C705062E0A SHA-1: 0x58C33CB0EE430155D72820AD177B7E646B587B54	Trojan-Spy.Win32.Zbot.evho [Kaspersky Lab] PWS-Zbot.gen.alg [McAfee]
2	%AppData%\ymmoqo.syg	1,322 bytes	MD5: 0xB9D8C2739BD87F8757CEAC7C85C3CE4F SHA-1: 0x518AF44D80F4D1638BAA4D5872CB88576D54DD34	(not available)
3	%Temp%\tmp8767cfc8.bat	168 bytes	MD5: 0xE7CB04493D14D43588D6DE433257FAA8 SHA-1: 0x4BCACA738E583369A40630ABC35A8BAAA237E172	(not available)
4	[file and pathname of the sample #1]	334,848 bytes	MD5: 0x64949FF9E177573BCF5C560277FC6F82 SHA-1: 0x5E45B6C352C432D2B69855AE0B4C1FF137AE9CAE	Trojan-Spy.Win32.Zbot.evho [Kaspersky Lab] PWS-Zbot.gen.alg [McAfee] PWS:Win32/Zbot [Microsoft]

• 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%\Ykihuk

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\Quaf

• 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%\Ykihuk\piyba.exe""

so that piyba.exe runs every time Windows starts

• [HKEY_CURRENT_USER\Software\Microsoft\Quaf]
• 16dga3d6 = "oX/cx6okMU1xDyrL85LHGw=="
• 1b5j14h0 = "g3+sxw=="
• 2b30ag00 = "Ex+sx9IYWE0fD17L"

• 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}