Feeds

eBay users targeted by advanced Trojan

Wild and dynamic

Internet Security Threat Report 2014

Updated eBay users are being targeted by an advanced Trojan that attempts to redirect traffic so it can silently bid on a car from the auction site's car section, Symantec is warning. It is the latest security headache for eBay, which has faced an onslaught of complaints from some users who say fraud on the site has increased to unacceptable levels over the past few months.

eBay officials are aware of the Trojan and are working with Symantec to prevent it from affecting buyers and sellers, a spokeswoman said.

Trojan.Bayrob implements a proxy server so that traffic intended for eBay is instead sent to one of several sites controlled by the attacker. Traffic is redirected by changing settings corresponding to at least six eBay URLs in the victim's hosts file. Once connected to rogue servers, Bayrob is programmed to download configuration data, including a variety of php scripts.

At least one of the scripts, Var.php, downloads variables such as tokenized versions of eBay pages designed to dupe a victim into thinking they are legitimate. One such page spoofs eBay's "Ask a question" section, which allows prospective buyers to - wait for it - ask sellers questions.

The tokenized variables let the attacker dynamically replace key strings such as the seller's name with ones doctored by the attacker, lending power and authenticity to the scheme. There are also feedback pages, for example, with high ratings, which are designed to give the victims confidence in the attacker and complete an auction.

This man-in-the-middle approach is unusual for eBay attacks, which usually involve phishing traps or keyloggers. But getting code to execute properly in man-in-the-middle attacks is difficult, and Symantec said the rogue servers did not appear to be returning variables needed to actually generate the spoofed pages.

eBay security has suffered several black eyes dating back to at least December, when longtime users say the number of fraudulent auctions being offered by users with high ratings began to grow. A hacker who goes by the name Vladuz has also embarrassed eBay security officials by gaining unauthorized access to servers on at least two occasions. The breaches allowed him to mock the company even as he posed as one of its employees.

eBay representatives have said Vladuz was able to penetrate only a limited section of eBay's system that is not able to access customer records and other sensitive information. They have also said most hijacked accounts are the result of users falling for phishing emails. ®

Internet Security Threat Report 2014

More from The Register

next story
George Clooney, WikiLeaks' lawyer wife hand out burner phones to wedding guests
Day 4: 'News'-papers STILL rammed with Clooney nuptials
Shellshock: 'Larger scale attack' on its way, warn securo-bods
Not just web servers under threat - though TENS of THOUSANDS have been hit
Apple's new iPhone 6 vulnerable to last year's TouchID fingerprint hack
But unsophisticated thieves need not attempt this trick
PEAK IPV4? Global IPv6 traffic is growing, DDoS dying, says Akamai
First time the cache network has seen drop in use of 32-bit-wide IP addresses
Oracle SHELLSHOCKER - data titan lists unpatchables
Database kingpin lists 32 products that can't be patched (yet) as GNU fixes second vuln
Researchers tell black hats: 'YOU'RE SOOO PREDICTABLE'
Want to register that domain? We're way ahead of you.
Stunned by Shellshock Bash bug? Patch all you can – or be punished
UK data watchdog rolls up its sleeves, polishes truncheon
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
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.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.