Feeds

Small banking Trojan poses major risk

Size doesn't matter, after all

Website security in corporate America

Security researchers have discovered a tiny, but highly capable banking Trojan.

Tinba (Tiny Banker, or otherwise known as Zusy) hooks itself into browsers before stealing banking login information and snaffling network traffic.

The malware used injected code and Man in The Browser (MiTB) tricks to change the way banking websites are presented to victims on compromised machines.

The technique is designed to thwart added security protections, most specifically two-factor authentication technologies, that have come into deployment by some banks. ZeuS, the well-established banking Trojan, uses much the same trickery to achieve the same nefarious ends.

Weighing in at just 20KB, Tinba represents a new family of banking Trojan. Antivirus detection of the analyzed samples is low, according to researchers at CSIS Security, a Danish firm.

Tinba uses a RC4 encryption scheme when communication with its Command & Control (C&C) servers, located at four hardcoded domains. "Tinba proves that malware with data stealing capabilities does not have to be 20MB of size," Peter Kruse, a researcher with CSIS, told El Reg.

His comments reference the avalanche of publicity that has accompanied the discovery of the Flame cyber-espionage toolkit, a portly 20MB chiefly notable for affecting systems in Iran and the ability to turn its worm like propagation routines on and off for added stealth.

CSIS has a detailed write-up of Tinba here. ®

Protecting users from Firesheep and other Sidejacking attacks with SSL

More from The Register

next story
Early result from Scots indyref vote? NAW, Jimmy - it's a SCAM
Anyone claiming to know before tomorrow is telling porkies
TOR users become FBI's No.1 hacking target after legal power grab
Be afeared, me hearties, these scoundrels be spying our signals
Home Depot: 56 million bank cards pwned by malware in our tills
That's about 50 per cent bigger than the Target tills mega-hack
Hackers pop Brazil newspaper to root home routers
Step One: try default passwords. Step Two: Repeat Step One until success
UK.gov lobs another fistful of change at SME infosec nightmares
Senior Lib Dem in 'trying to be relevant' shocker. It's only taxpayers' money, after all
Critical Adobe Reader and Acrobat patches FINALLY make it out
Eight vulns healed, including XSS and DoS paths
Spies would need SUPER POWERS to tap undersea cables
Why mess with armoured 10kV cables when land-based, and legal, snoop tools are easier?
Blood-crazed Microsoft axes Trustworthy Computing Group
Security be not a dirty word, me Satya. But crevice, bigod...
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
The next step in data security
With recent increased privacy concerns and computers becoming more powerful, the chance of hackers being able to crack smaller-sized RSA keys increases.