extortion | DataProtectionCenter.com

DDoS Attacks: The Zemra Bot

27

Jun

2012

Symantec has become aware of a new Distributed Denial of Service (DDoS) crimeware bot known as “Zemra” and detected by Symantec as Backdoor.Zemra. Lately, this threat has been observed performing denial-of-service attacks against organizations with the purpose of extortion. Zemra first appeared on underground forums in May 2012 at a cost of ?100.Figure 1. Zemra […]

Category General Written by Symantec Security Response Blog 0 Comments

Dishigy dishes out the DDoS and we dig deeper…

25

May

2012

The May edition of the Microsoft Malicious Software Removal Tool saw the inclusion of two new malware families: Win32/Unruy and Win32/Dishigy. Let’s dig a bit deeper into Dishigy and the nature of Denial of Service.So, bear with me while I take you back to security 101.A Denial of Service (DoS) attack is a pretty straightforward […]

Category General Written by Microsoft Malware Protection Center 0 Comments

ZeuS Ransomware Feature: win_unlock

21

May

2012

Earlier today, while doing our daily data mining, we came across a new variant of ZeuS 2.x. It includes a new backdoor command called: win_unlock. Very interesting, turns out this slightly modified ZeuS 2.x includes a ransomware feature. When this particular variant is executed, it opens Internet Explorer with a specific page (lex.creativesandboxs.com/locker/lock.php) and prevents […]

Category General Written by F-Secure Antivirus Research Weblog 0 Comments

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Posts Tagged ‘extortion’

DDoS Attacks: The Zemra Bot

Dishigy dishes out the DDoS and we dig deeper…

ZeuS Ransomware Feature: win_unlock

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