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-2014-0640
Published: 2014-08-20
EMC RSA Archer GRC Platform 5.x before 5.5 SP1 allows remote authenticated users to bypass intended restrictions on resource access via unspecified vectors.

CVE-2014-0641
Published: 2014-08-20
Cross-site request forgery (CSRF) vulnerability in EMC RSA Archer GRC Platform 5.x before 5.5 SP1 allows remote attackers to hijack the authentication of arbitrary users.

CVE-2014-2505
Published: 2014-08-20
EMC RSA Archer GRC Platform 5.x before 5.5 SP1 allows remote attackers to trigger the download of arbitrary code, and consequently change the product's functionality, via unspecified vectors.

CVE-2014-2511
Published: 2014-08-20
Multiple cross-site scripting (XSS) vulnerabilities in EMC Documentum WebTop before 6.7 SP1 P28 and 6.7 SP2 before P14 allow remote attackers to inject arbitrary web script or HTML via the (1) startat or (2) entryId parameter.

CVE-2014-2515
Published: 2014-08-20
EMC Documentum D2 3.1 before P24, 3.1SP1 before P02, 4.0 before P11, 4.1 before P16, and 4.2 before P05 does not properly restrict tickets provided by D2GetAdminTicketMethod and D2RefreshCacheMethod, which allows remote authenticated users to gain privileges via a request for a superuser ticket.

Best of the Web
Dark Reading Radio
Archived Dark Reading Radio
Three interviews on critical embedded systems and security, recorded at Black Hat 2014 in Las Vegas.