Author: Carlos Castillo

Carlos Castillo Carlos Castillo is a mobile malware researcher at McAfee, where he specializes in the analysis of mobile threats and Android malware. Castillo performs static and dynamic analysis of suspicious applications to support McAfee’s Mobile Security for Android product. He is the author of the McAfee-published white paper, "Android Malware Past, Present, and Future,” and wrote the “Hacking Android" section of the book, "Hacking Exposed 7: Network Security Secrets & Solutions.” As a recognized mobile malware researcher, Castillo has presented at several security industry events, including 8.8 Computer Security Conference and Segurinfo, a leading information security conference in South America. Prior to his position at McAfee, Castillo performed security compliance audits for the Superintendencia Financiera of Colombia, and worked at security startup Easy Solutions Inc., where he conducted penetration tests on web applications, helped shut down phishing and malicious websites, supported security and network appliances, performed functional software testing, and assisted in research and development related to anti-electronic fraud. Castillo joined the world of malware research when he won ESET Latin America’s Best Antivirus Research contest with a paper titled, “Sexy View: The Beginning of Mobile Botnets.” Castillo holds a degree in systems engineering from the Universidad Javeriana in Bogotá, Colombia.

Mobile banking Trojans have usually pretended to be security applications (for example, Zitmo) or legitimate banking apps (FakeToken or FkSite a.k.a. Perkele) to trick users into installing the malware. These apps steal incoming SMS messages that could contain mTANs (Mobile Transaction Authentication Numbers) used as two-factor authentication to allow Internet transactions. Now, however, it seems that […]

During the last two years we have observed the accelerated discovery of Android malware by the security industry. Malware authors today often create and distribute fake “antimalware” apps that simulate the scan of files on a device. These fake apps report fake threats (and sometimes make the device unusable). The goal is to get victims […]

Mobile devices are also increasingly being used to manage a critical and important asset for all of us: our money. According to the Federal Reserve Board report “Consumers and Mobile Financial Services 2013,” in the United States “48 percent of smartphone owners have used mobile banking in the past 12 months, up from 42 percent […]

Following the recent discovery of Android/Chuli.A, yet another Android malware has now been found using the same method as Chuli.A: via forged email messages with the Android malware (APK file) as an attachment. However, instead of creating a standalone malicious application that shows a fake invitation about an upcoming congress, this time the attackers compromised […]

The Android threat landscape continues to evolve in 2013. To distribute Android threats, malware authors are transitioning away from attacking traditional vectors like the Google Play Market and third-party Android markets to vectors like spam and phishing emails and SMS. Recently a new information-stealing Android malware was found being distributed as an attachment in emails […]