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    Why Backoff Malware Is Such a Big Threat to Retailers

    By
    SEAN MICHAEL KERNER
    -
    August 29, 2014
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      1Why Backoff Malware Is Such a Big Threat to Retailers

      1 - Why Backoff Malware Is Such a Big Threat to Retailers

      by Sean Michael Kerner

      2Backoff Has Been Active Since October 2013

      2 - Backoff Has Been Active Since October 2013

      Although the U.S. government didn’t issue a public advisory about Backoff until July, it turns out the malware has been active since October 2013.

      3At Least 1,000 Businesses Across the U.S. Have Been Infected

      3 - At Least 1,000 Businesses Across the U.S. Have Been Infected

      Initially, 600 businesses were thought to be at risk from Backoff, but that number has been revised upward to “at least” 1,000, according to US-CERT.

      4Backoff Targets Windows POS

      4 - Backoff Targets Windows POS

      Trustwave’s Karl Sigler notes that Backoff works against any Microsoft Windows-based POS system.

      5Remote Desktop Software Is the Point of Entry

      5 - Remote Desktop Software Is the Point of Entry

      In most cases, the initial breach into a retailer’s POS system is by way of some form of Remote Desktop Protocol (RDP) access.

      6Java Is an Indicator of Compromise

      6 - Java Is an Indicator of Compromise

      Sigler explained that in some cases, when the Backoff malware lands on a system, it is installed to an Oracle Java directory with an executable name of javaw.exe. He added that most POS systems typically don’t need to have Java.

      7Magnetic Stripe Credit Card Data Is Easily Stolen

      7 - Magnetic Stripe Credit Card Data Is Easily Stolen

      One of the core capabilities of Backoff is that it grabs customer credit card data taken from magnetic stripe card swipes.

      8Backoff Has Keylogging Features

      8 - Backoff Has Keylogging Features

      Going a step beyond just card swipes, Backoff also has keylogging features. Sigler noted that even if a cashier manually enters a credit card number, that data will also be compromised.

      9Backoff Communicates Credit Card Data Every 60 Seconds

      9 - Backoff Communicates Credit Card Data Every 60 Seconds

      An infected Backoff system can communicate stolen data back to a command and control host every 60 seconds.

      10Proper Security Can Limit Backoff Risk

      10 - Proper Security Can Limit Backoff Risk

      Sigler suggests that retailers have a firewall in place that monitors for communications to rogue servers. The use of strong passwords and two-factor authentication is recommended as well. Reducing the attack surface by properly securing remote desktop access can also reduce the risk.

      PrevNext

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