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Re: Fw: Citibank reminder: please update your data
From: Frederic Charpentier <fcharpen () xmcopartners com>
Date: Fri, 08 Oct 2004 15:47:32 +0200
About Citibank Scam :
it's an phising attack based on GDI+ JPEG overflow.
The exploit JPEG is named Ducky.jpg, and is detected by some antivirus
systems as Trojan.Ducky.
The message from CityBank is not textual, but an imagemap of an image
that is made to look like text.
The image is called sushi.gif, and it is believed to be used in attempt
to evade anti-spam systems that
are based purely on textual analysis. When the recipient clicks on the
link within the imagemap, they are
redirected to 18.104.22.1681:87/cit/index.htm.
Upon clicking on the imagemap, the user is taken to a site to enter
confidential information. The interesting part of this image entry
dialog box is that it also opens a legitimate copy of the Citibank Web
site under the phishing dialog to further enhance its perceived
legitimacy. The Window in the foreground is malicious and posts to
verify.php on 22.214.171.124, while the window in the background is the
legitimate homepage of Citibank.
The result of a successful compromise is the downloading and execution
of ll.exe from maybeyes.biz. ll.exe is then saved to c:\y.exe and executed.
Upon execution, y.exe calls URLDownloadToFile() on
This file is then saved as %SYSTEMROOT%\divxencoder.exe. When executed,
divxencoder.exe will parse the system for the explorer.exe process for
the purpose of injecting a DLL into its memory space.
When run, the DLL contacts 126.96.36.199 on ports 9348 and 9323 to
download the XML configuration file that will be used as the basis for
the phishing spam.
This hit me today.
The URL is:
( http://188.8.131.52:87/cit/confirm.htm )
----- Original Message -----
From: "CITI" <supprefnum2 () citibank com>
To: <paa-listas () argentina com>
Sent: Thursday, October 07, 2004 9:08 PM
Subject: Citibank reminder: please update your data
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Frederic Charpentier - Xmco Partners
Security Consulting / Pentest
web : http://www.xmcopartners.com
Full-Disclosure - We believe in it.