A week in security (Apr 17 – Apr 23)

A compilation of notable security news and blog posts from the 17th of April to the 23rd. We focused on the return of Locky ransomware, Moker Trojan, and more.

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Locky ransomware is back, but we already protect against it

For a while, it appeared that Locky ransomware had completely disappeared and allowed for Cerber to take the number one spot as the most distributed piece of ransomware. But after a long absence, Locky returns in full swing.
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Cybercrime
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GameStop customer data allegedly siphoned in possible breach

GameStop confirmed with KrebsOnSecurity that they are currently investigating reports of hackers breaching their network and siphoning customer information.
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Cybercrime
Hacking
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Diamond Fox – part 2: let’s dive in the code

In a previous post we made an initial analysis of a Diamond Fox bot delivered by the Nebula Exploit Kit (more about the campaign can be found here). We described the way to unpack the protection layer in order to get the core, written in Visual Basic, that can be decompiled. In this second part of…

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Explained: Sage ransomware

Sage is yet another ransomware that has become a common threat nowadays. Similarly to Spora, it has capabilities to encrypt files offline. The malware is actively developed and currently, we are facing outbreak of version 2.2. of this product.
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New targeted attack against Saudi Arabia Government

Several Saudi Arabia organizations are being targeted in a new spear phishing campaign.
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Social engineering
Tags: anti exploitphishingsaudi arabiaspear phishing

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Diamond Fox – part 1: introduction and unpacking

In this short series of posts, we will take a deep dive in a sample of Diamond Fox delivered by the Nebula Exploit Kit (described here). We will also make a brief comparison with the old, leaked version, in order to show the evolution of this product.

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A week in security (Mar 6th – Mar 12th)

A compilation of notable security news and blog posts from the 6th to the 12th of March. This week, we look back at Ransomware, exploit kits and Mac security myths.

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