Posts Tagged: Avira

Jul 12

New Java Exploit to Debut in BlackHole Exploit Kits

Malicious computer code that leverages a newly-patched security flaw in Oracle’s Java software is set to be deployed later this week to cybercriminal operations powered by the BlackHole exploit pack. The addition of a new weapon to this malware arsenal will almost certainly lead to a spike in compromised PCs, as more than 3 billion devices run Java and many of these installations are months out of date.

I first learned about the new exploit from a KrebsOnSecurity reader named Dean who works in incident response for a financial firm. Dean was trying to trace the source of an infected computer in his network; he discovered the culprit appeared to be a malicious “.jar” file. A scan of the jar file at showed that it was detected by just one antivirus product (Avira), which flagged it as “Java/Dldr.Lamar.BD”. The description of that threat says it targets a Javas vulnerability tagged as CVE-2012-1723, a critical bug fixed in Java 6 Update 33 and Java 7 Update 5.

The attack may be related to an exploit published for CVE-2012-1723 in mid-June by¬†Michael ‘mihi’ Schierl. But according to the current vendor of the BlackHole exploit pack, the exact exploit for this vulnerability has only been shared and used privately to date. Reached via instant message, the BlackHole author said the new Java attack will be rolled into a software update to be made available on July 8 to all paying and licensed users of BlackHole.

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Aug 10

Anti-virus Products Mostly Ignore Windows Security Features

I recently highlighted a study which showed that most of the top software applications failed to take advantage of two major lines of defense built into Microsoft Windows that can help block attacks from hackers and viruses. As it turns out, a majority of anti-virus and security products made for Windows users also forgo these useful security protections.

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Mar 10

Removing Viruses from a PC That Won’t Boot

One of the more common questions I hear from readers with computer virus infections is, “How do I get rid of a virus if I can’t even boot up into Windows to run an anti-virus scan?” Fortunately, there are a number of free, relatively easy-to-use tools that can help on this front.

The tools in this review are known as a “rescue CDs.” These are all free, Linux-based operating systems that one can download and burn to a CD-Rom. Once you’ve configured your PC to boot from the CD you’ve just burned, you can use the CD to scan your hard drive, and — depending on the type of rescue CD you choose — even copy files to a removable drive.

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