Feeds

Small banking Trojan poses major risk

Size doesn't matter, after all

The Power of One eBook: Top reasons to choose HP BladeSystem

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. ®

Designing a Defense for Mobile Applications

More from The Register

next story
Mozilla fixes CRITICAL security holes in Firefox, urges v31 upgrade
Misc memory hazards 'could be exploited' - and guess what, one's a Javascript vuln
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Don't look, Snowden: Security biz chases Tails with zero-day flaws alert
Exodus vows not to sell secrets of whistleblower's favorite OS
Roll out the welcome mat to hackers and crackers
Security chap pens guide to bug bounty programs that won't fail like Yahoo!'s
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
Researcher sat on critical IE bugs for THREE YEARS
VUPEN waited for Pwn2Own cash while IE's sandbox leaked
Four fake Google haxbots hit YOUR WEBSITE every day
Goog the perfect ruse to slip into SEO orfice
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Seven Steps to Software Security
Seven practical steps you can begin to take today to secure your applications and prevent the damages a successful cyber-attack can cause.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.