ThreatExpert Report: TSPY_BANCOS.AKH, Mal/Heuri-E, Mal/Emogen-N, Mal/Delf-M, Mal/Emogen-T..

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Submission Summary:

Submission details:

Submission received: 8 November 2008, 03:47:29
Processing time: 6 min 9 sec
Submitted sample:

File MD5: 0x5B3E754F12D75FBAA2D2D0CECEFB1426
File SHA-1: 0xA7B0363A683F59787D0E4BB3A75198D2D9B2FE67
Filesize: 24,064 bytes
Alias & packer info:

TSPY_BANCOS.AKH [Trend Micro]
Mal/Heuri-E, Mal/Emogen-N, Mal/Delf-M, Mal/Emogen-T [Sophos]
Trojan-Downloader.Win32.Banload [Ikarus]
packed with: PE_Patch.PECompact [Kaspersky Lab]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.

Technical Details:

File System Modifications

The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	[file and pathname of the sample #1]	24,064 bytes	MD5: 0x5B3E754F12D75FBAA2D2D0CECEFB1426 SHA-1: 0xA7B0363A683F59787D0E4BB3A75198D2D9B2FE67	TSPY_BANCOS.AKH [Trend Micro] Mal/Heuri-E, Mal/Emogen-N, Mal/Delf-M, Mal/Emogen-T [Sophos] Trojan-Downloader.Win32.Banload [Ikarus] packed with PE_Patch.PECompact [Kaspersky Lab]

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	73,728 bytes

Other details

Analysis of the file resources indicate the following possible country of origin:

Brazil

The following Internet download was started (the retrieved bits are saved into the local file):

URL to be downloaded	Filename for the downloaded bits
http://webmail_arquivos.sitesled.com/web.exe	c:\Gbplugsn.exe

Downloaded File Summary:

Download details:

Download retrieved: 8 November 2008 03:57:43
Processing time: 5 min 58 sec
Downloaded sample:

File MD5: 0xD2DF0F87096781EDDA5B90B87F4FCDAF
File SHA-1: 0xDF05A58F2648900D11F32113354C8C053E74634C
Filesize: 2,568,192 bytes
Alias & packer info:

Infostealer.Bancos [Symantec]
Trojan.Win32.KillFiles.se [Kaspersky Lab]
Mal/Banspy-F, Mal/Behav-249, Mal/Emogen-T [Sophos]
Trojan-Spy.Win32.Banker.anv [Ikarus]
packed with: PE_Patch.PECompact [Kaspersky Lab]

Summary of the findings:

What's been found	Severity Level
Capability to send out email message(s) with the built-in SMTP client engine.
Contains characteristics of an identified security risk.

Technical Details:

The new window was created, as shown below:

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Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Trojan.KillFiles	Trojan.Killfiles deletes the Windows critical system file NTLOADER, which prevents Windows from loading on the next boot. Its also deletes Notepad and Calculator programs. If this happens, you must backup all your data and re-install Windows.

Attention! The following threat categories were identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment
	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	%System%\PLUG.SYS	4,224 bytes	MD5: 0x7935DDC93A7A660AA981596BAC690618 SHA-1: 0x66DE17D8BD3BF1E5C67E11BF0D1FA5949CE16039	Trojan.KillFiles [PCTools] Trojan Horse [Symantec] Trojan.Win32.KillFiles.se [Kaspersky Lab] Generic Del.x [McAfee] Troj/Banker-EMA [Sophos] Trojan:Win32/Killfiles.R [Microsoft] Trojan.Win32.KillFiles.se [Ikarus]
2	[file and pathname of the sample #1]	2,568,192 bytes	MD5: 0xD2DF0F87096781EDDA5B90B87F4FCDAF SHA-1: 0xDF05A58F2648900D11F32113354C8C053E74634C	Infostealer.Bancos [Symantec] Trojan.Win32.KillFiles.se [Kaspersky Lab] Mal/Banspy-F, Mal/Behav-249, Mal/Emogen-T [Sophos] Trojan-Spy.Win32.Banker.anv [Ikarus] packed with PE_Patch.PECompact [Kaspersky Lab]

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).

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	9,785,344 bytes

Other details

Analysis of the file resources indicate the following possible country of origin:

Brazil

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