Submission Summary:

• Submission details:
• Submission received: 22 October 2012, 18:33:29
• Processing time: 11 min 4 sec
• Submitted sample:
• File MD5: 0xDB935F51A50791093B16D474EAE8703B
• File SHA-1: 0x84BA481B34DC54DFF60BDB7FAD74A1E1268FF727
• Filesize: 282,113 bytes
• Alias:
• Trojan.Gen [Symantec]
• PWS-Zbot.gen.aft [McAfee]
• Trojan-Spy.Win32.Zbot [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%\Otcy\omko.exe	282,113 bytes	MD5: 0x239D4059DD5A3FFACE6D1BF3CE5984E3 SHA-1: 0x5541EF2CBABC1FADFC38101F105DAAD92C165465	Trojan.Gen [Symantec] PWS-Zbot.gen.aft [McAfee] Trojan-Spy.Win32.Zbot [Ikarus]
2	%AppData%\sawav.yxn	1,322 bytes	MD5: 0x9CC9B9E5407BA216638CD49D3CA2A538 SHA-1: 0xEB8D167B71B72F254CC2B5EFBE4B171882250E0A	(not available)
3	%Temp%\tmp5431355f.bat	168 bytes	MD5: 0x522F568CBCE54E8272EB9D187AE0DB87 SHA-1: 0x0954CCD07A59C99568E57CE7169F76C7AB218FE0	(not available)
4	[file and pathname of the sample #1]	282,113 bytes	MD5: 0xDB935F51A50791093B16D474EAE8703B SHA-1: 0x84BA481B34DC54DFF60BDB7FAD74A1E1268FF727	Trojan.Gen [Symantec] PWS-Zbot.gen.aft [McAfee] Trojan-Spy.Win32.Zbot [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%\Otcy

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\Yfibip

• 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%\Otcy\omko.exe""

so that omko.exe runs every time Windows starts

• [HKEY_CURRENT_USER\Software\Microsoft\Yfibip]
• 15f96j40 = 54 3B D0 8B 79 49 1E 3F DC 06
• 19bhg05a = 0x8BA43B64
• 2bahgcii = "yXGki0d2aD/qBkEY"

• 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}