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Mediyes – the dropper with a valid signature

15

Mar

2012

In the last few days a malicious program has been discovered with a valid signature. The malware is a 32- or 64-bit dropper that is detected by Kaspersky Lab as Trojan-Dropper.Win32.Mediyes or Trojan-Dropper.Win64.Mediyes respectively. Numerous dropper files have been identified that were signed on various dates between December 2011 and 7 March 2012. In all […]

Category General Written by Securelist / Blog 0 Comments

The where and why of HLUX

15

Feb

2012

This is not the first time the HLUX botnet has been mentioned in this blog, but there are still some unanswered questions that we’ve been receiving from the media: What is the botnet’s sphere of activity? What sort of commands does it receive from malicious users? How does the bot spread? How many infected computers […]

Category General Written by Securelist / Blog 0 Comments

New Exploit Targeting Java Vulnerability Found in BlackHole Arsenal

13

Dec

2011

On 3 December, we noted a rapid growth in the number of detections for exploits targeting the vulnerability CVE-2011-3544 in Java virtual machine. The vulnerability was published on 18 October, but malicious users have only recently begun to make active use of it. It can be used by exploits in drive-by attacks to download and […]

Category General Written by Securelist / Blog 0 Comments

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Mediyes – the dropper with a valid signature

The where and why of HLUX

New Exploit Targeting Java Vulnerability Found in BlackHole Arsenal

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