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Hijacking SIM Cards through Over-the-Air Updates

23

Jul

2013

We all know that mobile phones have been the focus of cybercriminals for a while now. But Trojanized mobile applications are only one attack scenario. Some problems lie even deeper in your phone. Karsten Nohl, a German researcher who has done a lot of work with GSM networks and mobile phones in the past, has […]

Category General Written by Symantec Security Response Blog 0 Comments

Dissecting Latest Kelihos Peer Exchange Communication

18

Jul

2013

StoryAround the end of June, I found a new Kelihos binary that was being pushed to all the proxy peers from Kelihos’ job servers. At that time, I assumed the binary was just a typical bug fix build. But on July 14th, my Kelihos tracker stopped getting new peers. I then realized the update in […]

Category Security Written by Fortinet Blog 0 Comments

Digging Into Certificate Revocation Lists

11

Jul

2013

In this blog we shall reveal the uses for certificates, uncover how to combat abused certificates and dig deep into an example of how malicious software can be digitally signed to pass certification verification. What is a certificate? In cryptography, a public key certificate, also known as a digital certificate, is an electronic document that […]

Category Security Written by Websense 0 Comments

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Hijacking SIM Cards through Over-the-Air Updates

Dissecting Latest Kelihos Peer Exchange Communication

Digging Into Certificate Revocation Lists

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