Risk
2/28/2011
05:55 PM
George V. Hulme
George V. Hulme
Commentary
Connect Directly
RSS
E-Mail
50%
50%

Sophisticated Trojan Targets Some Banking Sites

S21sec, a Spanish information security firm, claims to have spotted a new Trojan with advanced infiltration and attack techniques.

S21sec, a Spanish information security firm, claims to have spotted a new Trojan with advanced infiltration and attack techniques.This Trojan, named Tatanga, like most banking Trojan, possesses man-in-the-browser capabilities, can inject malicious HTML code into many popular browser types. According to S21sec, the Trojan can conduct banking transactions in the background. The Trojan can display a fake balance, which the end user perceives as the real account balance, while their account is being fleeced.

"The trojan in question is rather sophisticated," the company posted in its research blog. "It is written in C++ and uses rootkit techniques to conceal its presence, though on occasion, its files are visible. The trojan downloads a number of encrypted modules (DLLs), which are decrypted in memory when injected to the browser or other processes to avoid detection by antivirus software," it continued.

Some of those libraries grab email addresses, encrypt and manage the malware's processes, remove other forms of malware on the machine, as well as block installed antivirus applications.

The Trojan can also grab user credentials during the session, including one-time-passwords. The malware relies on both technical attacks as well as social engineering tactics designed to walk users through a transfer they think is a demonstration transfer.

S21sec has a snippet of the Trojan's code on its site.

While the Trojan is currently targeting European banks, mainly in Spain, United Kingdom, Germany, and Portugal - these attacks rarely remain localized.

Unfortunately, according to the security firm, the anti-virus detection rate of this Trojan is currently very low.

For my security and technology observations throughout the day, find me on Twitter.

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Flash Poll
Current Issue
Cartoon
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2013-7392
Published: 2014-07-22
Gitlist allows remote attackers to execute arbitrary commands via shell metacharacters in a file name to Source/.

CVE-2014-2385
Published: 2014-07-22
Multiple cross-site scripting (XSS) vulnerabilities in the web UI in Sophos Anti-Virus for Linux before 9.6.1 allow local users to inject arbitrary web script or HTML via the (1) newListList:ExcludeFileOnExpression, (2) newListList:ExcludeFilesystems, or (3) newListList:ExcludeMountPaths parameter t...

CVE-2014-3518
Published: 2014-07-22
jmx-remoting.sar in JBoss Remoting, as used in Red Hat JBoss Enterprise Application Platform (JEAP) 5.2.0, Red Hat JBoss BRMS 5.3.1, Red Hat JBoss Portal Platform 5.2.2, and Red Hat JBoss SOA Platform 5.3.1, does not properly implement the JSR 160 specification, which allows remote attackers to exec...

CVE-2014-3530
Published: 2014-07-22
The org.picketlink.common.util.DocumentUtil.getDocumentBuilderFactory method in PicketLink, as used in Red Hat JBoss Enterprise Application Platform (JBEAP) 5.2.0 and 6.2.4, expands entity references, which allows remote attackers to read arbitrary code and possibly have other unspecified impact via...

CVE-2014-4326
Published: 2014-07-22
Elasticsearch Logstash 1.0.14 through 1.4.x before 1.4.2 allows remote attackers to execute arbitrary commands via a crafted event in (1) zabbix.rb or (2) nagios_nsca.rb in outputs/.

Best of the Web
Dark Reading Radio
Archived Dark Reading Radio
Where do information security startups come from? More important, how can I tell a good one from a flash in the pan? Learn how to separate ITSec wheat from chaff in this episode.