Risk
2/28/2011
05:55 PM
George V. Hulme
George V. Hulme
Commentary
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
Cartoon
Current Issue
Dark Reading Tech Digest, Dec. 19, 2014
Software-defined networking can be a net plus for security. The key: Work with the network team to implement gradually, test as you go, and take the opportunity to overhaul your security strategy.
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2014-4632
Published: 2015-01-31
VMware vSphere Data Protection (VDP) 5.1, 5.5 before 5.5.9, and 5.8 before 5.8.1 does not properly verify X.509 certificates from vCenter Server SSL servers, which allows man-in-the-middle attackers to spoof servers, and bypass intended backup and restore access restrictions, via a crafted certifica...

CVE-2014-7287
Published: 2015-01-31
The key-management component in Symantec PGP Universal Server and Encryption Management Server before 3.3.2 MP7 allows remote attackers to trigger unintended content in outbound e-mail messages via a crafted key UID value in an inbound e-mail message, as demonstrated by the outbound Subject header.

CVE-2014-7288
Published: 2015-01-31
Symantec PGP Universal Server and Encryption Management Server before 3.3.2 MP7 allow remote authenticated administrators to execute arbitrary shell commands via a crafted command line in a database-backup restore action.

CVE-2014-8266
Published: 2015-01-31
Multiple cross-site scripting (XSS) vulnerabilities in the note-creation page in QPR Portal 2014.1.1 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) title or (2) body field.

CVE-2014-8267
Published: 2015-01-31
Cross-site scripting (XSS) vulnerability in QPR Portal 2014.1.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the RID parameter.

Best of the Web
Dark Reading Radio
Archived Dark Reading Radio
If you’re a security professional, you’ve probably been asked many questions about the December attack on Sony. On Jan. 21 at 1pm eastern, you can join a special, one-hour Dark Reading Radio discussion devoted to the Sony hack and the issues that may arise from it.