Last year, we blogged about the actor known as Quarian, who is involved in targeted attacks. This individual or group has been active since at least 2011 and has targeted government agencies. The attacks use spear phishing campaigns with crafted .pdf and .doc files as bait for unsuspecting users. Recently, we found a new sample […]
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Often we see malware authors using encryption or obfuscation along with other techniques to modify the static contents of malware. They do this to evade static-based clustering and detection even though the behavior is the same. In many cases obfuscation also helps hide the threat’s malicious intentions from security researchers. BackOff, a point-of-sale malware designed […]
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At the AVAR conference in November, with the help of coauthor and independent security researcher Song Li, we will present our findings of an emerging mobile threat vector. We have found that in a group of popular retail apps, such as Costco’s and Walgreens’ apps for Android, when a QR code is scanned using the […]
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