Polish Takedown Targets ‘Virut’ Botnet
Security experts in Poland on Thursday quietly seized domains used to control the “Virut” botnet, a huge army of hacked PCs that is custom-built to be rented out to cybercriminals.
Category Archives: A Little Sunshine
New Java Exploit Fetches $5,000 Per Buyer
Less than 24 hours after Oracle patched a dangerous security hole in its Java software that was being used to seize control over Windows PCs, miscreants in the Underweb were already selling an exploit for a different and apparently still-unpatched zero-day vulnerability in Java, KrebsOnSecurity has learned.
Spam Volumes: Past & Present, Global & Local
Last week, National Public Radio aired a story on my Pharma Wars series, which chronicles an epic battle between men who ran two competing cybercrime empires that used spam to pimp online pharmacy sites. As I was working with the NPR reporter on the story, I was struck by how much spam has decreased over the past couple of years. Below is a graphic that’s based on spam data collected by Symantec’s MessageLabs. It shows that global spam volumes fell and spiked fairly regularly, from highs of 6 trillion messages sent per month to just below 1 trillion. I produced this graph based on Symantec’s raw spam data.
Police Arrest Alleged ZeuS Botmaster “bx1”
A man arrested in Thailand this week on charges of stealing millions from online bank accounts fits the profile of a miscreant nicknamed “bx1,” a hacker fingered by Microsoft as a major operator of botnets powered by the ZeuS banking trojan.
Facebook, Yahoo Fix Valuable $ecurity Hole$
Both Facebook and Yahoo! recently fixed security holes that let hackers hijack user accounts. Interestingly, access to methods for exploiting both of the flaws appears to have been sold by the same miscreant in the cybercrime underground.
‘Value of a Hacked PC’ Graphic Goes Global
The Value of a Hacked PC graphic, which I published on this blog a few months ago to explain bad guy uses for your PC, is getting a makeover. I’m honored to say that the SANS Institute, a security training group,… Read More »
Crimeware Author Funds Exploit Buying Spree
The author of Blackhole, an exploit kit that booby-traps hacked Web sites to serve malware, has done so well for himself renting his creation to miscreants that the software has emerged as perhaps the most notorious and ubiquitous crimeware product in the Underweb. Recently, however, the author has begun buying up custom exploits to bundle into a far more closely-held and expensive exploit pack, one that appears to be fueling a wave of increasingly destructive online extortion schemes.
Does Your Alarm Have a Default Duress Code?
Sometimes it takes a security scare to help improve your overall security posture. Case in point: Over the holidays, I learned that our alarm system — one of the most widely used home security systems in America — contains a default code that disables the alarm. Although entering this code simultaneously alerts the police that an intruder is in the house, it also could give thieves just enough time to get away with your valuables without alerting the neighbors.
Exploring the Market for Stolen Passwords
Not long ago, PCs compromised by malware were put to a limited number of fraudulent uses, including spam, click fraud and denial-of-service attacks. These days, computer crooks are extracting and selling a much broader array of data stolen from hacked systems, including passwords and associated email credentials tied to a variety of online retailers.
LogMeIn, DocuSign Investigate Breach Claims
Customers of remote PC administration service LogMeIn.com and electronic signature provider DocuSign.com are complaining of a possible breach of customer information after receiving malware-laced emails to accounts they registered exclusively for use with those companies. Both companies say they are investigating the incidents, but so far have found no evidence of a security breach.
