ThreatExpert Report: Mal/Banc-C, Mal/Banc-C

Submission Summary:

Submission details:

Submission received: 7 June 2011, 13:02:51
Processing time: 11 min 39 sec
Submitted sample:

File MD5: 0xBFA7D446A16B40DCA9CD5A68C18F1493
File SHA-1: 0xE6F8660A7CC2907A3DBFB940707BD1D53C408879
Filesize: 500,224 bytes
Alias: Mal/Banc-C, Mal/Banc-C [Sophos]

Summary of the findings:

What's been found	Severity Level
Hosts file modification that may block access to the security web sites.

Technical Details:

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	c:\capslock.bmp	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
2	[file and pathname of the sample #1]	500,224 bytes	MD5: 0xBFA7D446A16B40DCA9CD5A68C18F1493 SHA-1: 0xE6F8660A7CC2907A3DBFB940707BD1D53C408879	Mal/Banc-C, Mal/Banc-C [Sophos]

The following file was modified:

%System%\drivers\etc\hosts

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).

Other details

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

Brazil

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

# Copyright (c) 1993-1999 Microsoft Corp.
#
# Este é um arquivo HOSTS de exemplo usado pelo Microsoft TCP/IP para Windows.
# Este arquivo contém os mapeamentos de endereços IP para nomes de host. Cada
# entrada deve ser mantida em uma linha individual. O endereço IP deve
# ser colocado na primeira coluna, seguido do nome de host correspondente.
# O endereço IP e o nome do host devem ser separados por pelo menos um
# espaço.
# Adicionalmente, comentários (como estes) podem ser inseridos em linhas
# individuais ou após o nome de computador indicado por um símbolo #.
# Por exemplo:
#      102.54.94.97     rino.acme.com           # servidor de origem
#       38.25.63.10     x.acme.com              # host cliente x
127.0.0.1       localhost
64.31.58.180 bradesco.com.br
64.31.58.180 www.bradesco.com.br
64.31.58.180 santander.com.br
64.31.58.180 www.santander.com.br
64.31.58.180 itau.com.br
64.31.58.180 www.itau.com.br
64.31.58.180 cef.com.br
64.31.58.180 www.cef.com.br
64.31.58.180 caixa.com.br
64.31.58.180 www.caixa.com.br
64.31.58.180 caixa.gov.br
64.31.58.180 www.caixa.gov.br
64.31.58.180 bb.com.br
64.31.58.180 www.bb.com.br
64.31.58.180 bancobrasil.com.br
64.31.58.180 www.bancobrasil.com.br
64.31.58.180 bancodobrasil.com.br
64.31.58.180 www.bancodobrasil.com.br
64.31.58.180 hotmail.com
64.31.58.180 www.hotmail.com
64.31.58.180 serasa.com.br
64.31.58.180 www.serasa.com.br
64.31.58.180 serasa.com
64.31.58.180 www.serasa.com
64.31.58.180 serasaexperian.com.br
64.31.58.180 www.serasaexperian.com.br
64.31.58.180 serasaexperian.com
64.31.58.180 www.serasaexperian.com
64.31.58.180 bancoreal.com.br
64.31.58.180 www.bancoreal.com.br
64.31.58.180 citibank.com.br
64.31.58.180 www.citibank.com.br

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