Submission Summary:

• Submission details:
• Submission received: 9 December 2008, 13:05:21
• Processing time: 6 min 13 sec
• Submitted sample:
• File MD5: 0xA7EE74C1CE14FB7B17AFC4199A82CC1B
• File SHA-1: 0x1B2644ABA06A33C274DB3BD4C422FF6EA50067F7
• Filesize: 59,392 bytes

• Summary of the findings:

What's been found	Severity Level
Hosts file modification that may block access to the security web sites.
Downloads/requests other files from Internet.
Creates a startup registry entry.
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.

File System Modifications

• The following files were created in the system:

#	Filename(s)	File Size	File Hash
1	[file and pathname of the sample #1]	59,392 bytes	MD5: 0xA7EE74C1CE14FB7B17AFC4199A82CC1B SHA-1: 0x1B2644ABA06A33C274DB3BD4C422FF6EA50067F7
2	%System%\twain_32\local.ds	70,556 bytes	MD5: 0x75FDB2E133AB9BF82F1AF48DA1C3C6CB SHA-1: 0x5C2D5C6C950BA85278F9DF9A1DCE9C85E831E3F3
3	%System%\twain_32\user.ds	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709
4	%System%\twext.exe	334,848 bytes	MD5: 0xE32695A4FB90899E48AD33BB42C822FB SHA-1: 0x1A68A929D15D2E892D4FDE11A3F136433CE56B11

• 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).

• The following file was modified:
• %System%\drivers\etc\hosts

• The following directory was created:
• %System%\twain_32

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	4,096 bytes
lsass.exe	%System%\lsass.exe	4,096 bytes
svchost.exe	%System%\svchost.exe	4,096 bytes
svchost.exe	%System%\svchost.exe	4,096 bytes
svchost.exe	%System%\svchost.exe	4,096 bytes
svchost.exe	%System%\svchost.exe	4,096 bytes
alg.exe	%System%\alg.exe	4,096 bytes

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%_0003C3AF"
• [HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\{19127AD2-394B-70F5-C650-B97867BAA1F7}]
• {02FFAC45-0B10-5633-4296-1801F1A36678} = F6 0D F3 0E
• {0DBFF156-FA13-FA1D-8C69-E54ED53D1A4D} = 4F 06 2B 56
• [HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\{43BF8CD1-C5D5-2230-7BB2-98F22C2B7DC6}]
• {F710FA10-2031-3106-8872-93A2B5C5C620} = F7 09 F2 0D
• {E716FA10-2031-AA96-8E72-93A205C5C62C} = 47 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\CurrentVersion\Internet Settings\Cache\Paths]
• Directory = "%Profiles%\LocalService\Local Settings\Temporary Internet Files\Content.IE5"
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
• CachePath = "%Profiles%\LocalService\Local Settings\Temporary Internet Files\Content.IE5\Cache1"
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
• CachePath = "%Profiles%\LocalService\Local Settings\Temporary Internet Files\Content.IE5\Cache2"
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
• CachePath = "%Profiles%\LocalService\Local Settings\Temporary Internet Files\Content.IE5\Cache3"
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
• CachePath = "%Profiles%\LocalService\Local Settings\Temporary Internet Files\Content.IE5\Cache4"
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
• Userinit = "%System%\userinit.exe,%System%\twext.exe,"

so that twext.exe runs every time Windows starts

• [HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
• Cookies = "%Profiles%\LocalService\Cookies"
• History = "%Profiles%\LocalService\Local Settings\History"

Other details

• The HOSTS file was updated with the following URL-to-IP mappings:

• There were registered attempts to establish connection with the remote hosts. The connection details are:

• The data identified by the following URLs was then requested from the remote web server:
• http://193.27.246.190/main/llooolbrrrr.bin
• http://193.27.246.190/main/update_windows.php?btn=computername_0003c3af&q=
• http://193.27.246.190/main/update_windows.php?zip=computername_0003c3af&type=1&name=16843776&q=&item=0&id=0&rdp=0
• http://193.27.246.190/main/update_windows.php?cmd=computername_0003c3af&type=1228537177
• http://escortcitylondon.com/inco/win/main.exe