F5 security researchers analyzed the Ramnit banking trojan campaign that was active over the holiday season and discovered it’s not much of a banking trojan anymore. 64% of its targets were retail eCommerce sites, including Amazon.com, Best Buy, Forever 21, Gap, Zara, Carter’s, OshKosh B’gosh, Macy’s, Victoria’s Secret, H&M, Overstock.com, Toys“R”Us, Zappos, and many others.…

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A threat actor has been using a content delivery network cache to store information-stealing malware in an ongoing campaign targeting systems U.S., the U.K., Germany, and Japan. Researchers believe that behind the campaign is CoralRaider, a financially motivated threat actor focused on stealing credentials, financial data, and social media accounts. The hackers deliver LummaC2, Rhadamanthys, and Cryptbot…

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The obvious takeaway here is that these two most commonly breached application vulnerabilities represent low hanging fruit for attackers. Forum software is a favorite target for attackers because they consume user content that if not sanitized properly could be a crafty little malicious script that injects a PHP backdoor. Forum makers (as well as CMS providers…

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We’re celebrating our one-year anniversary here at F5 Labs, the application threat intelligence division of F5! Although F5 researchers have been providing threat-related, F5-specific guidance to our customers for many years through DevCentral, the time was right a year ago today to launch a dedicated website that provides the general public with vendor-neutral, application-focused, actionable…

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We’re in an exciting time in our profession. There is a lot of new technology, a huge demand for our skills, and a bright future that promises only more work for us. Yet, this excitement is a two-edged blade. We often hear from peers about how hard it is to hire good security folks. My…

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Previously, I’ve talked about four primary risk treatment options: mitigate, avoid, accept, and transfer. Over the history of the security industry, we’ve tended to focus on mitigation. Implementing controls is where the action is. As IT has largely become a consumption model, I would argue that risk transfer is catching up with mitigation and becoming…

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Email attachment containing wire transfer instructions   Many buyers, in their eagerness to follow instructions to the letter so they can get into their new homes quickly, have followed similar wiring instructions and found themselves not only without a new home but stripped of their entire life savings—stolen by scammers. It nearly happened to Brown…

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Whether it’s coming from the business units or the IT organization, every company wants to pull off new tech initiatives to create business impact. Thus, we see new functionality. We think it’s cool. We introduce it.  …but then a user slips up because of some unforeseen slack in the system. When that happens, suddenly we’re…

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Forward Secrecy’s day has come – for most. The cryptographic technique (sometimes called Perfect Forward Secrecy or PFS), adds an additional layer of confidentiality to an encrypted session, ensuring that only the two endpoints can decrypt the traffic.  With forward secrecy, even if a third party were to record an encrypted session, and later gain…

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Every day, your web servers are increasingly being scanned—and likely attacked—by adversaries attempting to gain access to your infrastructure. Between 2015 and 2017, our data partner, Loryka, observed these types of scans grow from 200 per minute to as much as 2,000 per minute. These kinds of attackers are professionals; they do this for a…

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