Two Belgian security researchers from the University of Leuven have driven new nails into the coffin of the RC4 encryption algorithm. A published paper, expected to be delivered at the upcoming USENIX Security Symposium next month in Washington, D.C., describes new attacks against RC4 that allow an attacker to capture a victim’s cookie and decrypt […]
Recently, we observed an attack campaign using link files attached to emails in Japan. We have blogged about threats utilizing link files before and this type of attack is still alive and well. The target of the link is disguised to make it look like it is linking to a text file, tricking the user […]
Ever since the source code of the Zeus crimeware kit, also known as Zbot, was leaked onto the internet in May 2011, many new variants have appeared. These have typically added new features and improved on the old code.One particularly prevalent example is Citadel.At its core, Citadel works like the original Zbot. It comes as […]
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