Slashdot Mirror

← Back to Stories (view on slashdot.org)

Banking Malware, Under the Hood

Posted by timothy on from the is-that-a-hemi? dept.

rye writes "What is your computer actually DOING when you click on a link in a phishing email? Sherri Davidoff of LMG Security released these charts of an infected computer's behavior after clicking on a link in a Blackhole Exploit Kit phishing email. You can see the malware 'phone home' to the attacker every 20 minutes on the dot, and download updates to evade antivirus. She then went on to capture screenshots and videos of the hacker executing a man-in-the-browser attack against Bank of America's web site. Quoting: 'My favorite part is when the attacker tried to steal my debit card number, expiration date, security code, Social Security Number, date of birth, driver's license number, and mother's maiden name– all at the same time. Nice try, dude!!'"

2 of 92 comments (clear)

  1. Re:Well, you were dumb enough by Anonymous Coward · · Score: 5, Funny

    One time when one of the lotteries' jackpot got really big, the local news did a "man on the street" interview. One guy said, "I figure my chances of winning are 50-50. Either I win or I don't."

  2. I Fixed One Of These Recently by CAOgdin · · Score: 5, Interesting

    This malware (which puts up the appearance of a credit/debit card and asks for all you information) calls a server in the Ukraine. It was delivered by eMail (to a naive user) and intercepts attempts to reach your financial institution via their website. It presents, after login (did they capture the login info?), a panel looking like the credit/debit card, asking for the user to fill in all information, including account number, CVC, address, and other personal information (why anyone would fill in that data is beyond me!)

    After much gnashing of teeth, I discovered it was undetectable by any known virus checker I use (AVG, Malwarebytes, Spybot), so I had to dig deeper. It turned out that the malware was using any references to 127.0.0.1 (local machine) for it's hook. All I had to do was edit the HOSTS file and add the domain names of the miscreant with a reference to a different IP address that is known to be a deadend (you could, for example, use 127.7.7.7).

    When the malware couldn't execute, it couldn't disable the various malware detectors, and several files were then identified and removed.