Malware

The Distribution of Botnets Since Rustock Went Down

I pulled together some statistics on my collection of botnet statistics for the period of time between Rustock being shut down and Wednesday, April 6. I wanted to see the distribution of botnets per country - now that Rustock is down, which country has the most botnet infections (as measured by unique IP addresses that send us spam)? more

Record Number of Malware Variants Detected in Q4 of 2014, Retail/Service Most Targeted

During the 4th quarter of 2014, a record number of malware variants were detected -- an average of 255,000 new threats each day, according a recent report by Anti-Phishing Working Group (APWG). The group further reports that the number of unique phishing reports submitted to APWG during Q4 was 197,252 -- an increase of 18 percent from the 163,333 received in Q3 of 2014. more

Worming Our Way Out of Trouble

The Conficker worm will be active again on April 1st, according to an analysis of its most recent variant, Conficker.C, by the net security firm CA. This malicious piece of software, also known as Downup, Downadup and Kido, spreads among computers running most variants of the Windows operating system and turns them into nodes on a multi-million member ‘botnet’ of zombie computers that can be controlled remotely by the worm’s as yet unidentified authors. more

Resources for Cleaning Your Network

The first step (but certainly not the last) towards saving the internet from spam, malware, and other abuse is to keep your own network clean. A friend of CAUCE, who wishes to remain anonymous, offers these tips and resources to help you identify problem traffic emanating from your network, and clean it up. Though primarily written for ISPs, many of the items below should apply equally well to any network owner. more

Latest Makadocs Malware Uses Google Drive Viewer As Proxy to Command and Control Server

Security researchers have found a new variant of the Macadocs malware to be using Google docs as a proxy server and not connecting to a command and control server directly. In a blog post on Friday, Symantec researcher Takashi Katsuki, wrote... more

Why are *.edu’s Compromised so Much?

When it comes to the problem of outbound spam, one of the experiences that I have, and this was reaffirmed at TechEd, is that the number one source of compromised accounts are educational institutions. That is to say, whenever we have an outbound spam problem and have to hunt down where it is coming from, the highest number of these accounts are phished accounts/credentials from users at an educational institution. Why is this? Why does so much spam originate from universities? more

British Security Researcher Credited for Stopping WannaCry Is Charged in a U.S. Cybercrime Case

The 23-year-old British security researcher, Marcus Hutchins, who a few months ago was credited with stopping the WannaCry outbreak by discovering a hidden "kill switch" for the malware, is now reported to have been arrested by the FBI over his alleged involvement in separate malicious software targeting bank accounts. more

Average Daily Malware at All Time High, Spam Lowest Since 2008

McAfee, Inc. today unveiled its McAfee Threats Report: Third Quarter 2010, which uncovered that average daily malware growth has reached its highest levels, with an average of 60,000 new pieces of malware identified per day, almost quadrupling since 2007. At the same time, spam levels decreased in volume this quarter, both globally and in local geographies. Spam hit a two year low this quarter while malware continued to soar. More than 14 million unique pieces of malware were identified in 2010, one million more than Q3 2009. more

The Epsilon Phishing Model

Phishing researcher Gary Warner's always interesting blog offers some fresh perspective on clicking links on emails, as the crux of the phishing problem. Gary writes: "There is a saying 'if you give a man a fish, he'll eat for a day, but if you teach a man to fish, he can feed himself for a lifetime.' In the case of the Epsilon email breach the saying might be 'if you teach a man to be phished, he'll be a victim for a lifetime.' In order to illustrate my point, let's look at a few of the security flaws in the business model of email-based marketing, using Epsilon Interactive and their communications as some examples." more

Closing the Gaps: The Quest for a Secure Internet

Over the last year the world has been virtually buried under news items describing hacks, insecure websites, servers and scada systems, etc. Each and every time people seem to be amazed and exclaim "How is this possible?" Politicians ask questions, there is a short lived uproar and soon after the world continues its business as usual. Till the next incident. In this blog post I take a step back and try to look at the cyber security issue from this angle... more

An Unnatural .Bond: A Study of a ‘Megacluster’ of Malware Domains

A recent news story, following research from security provider Infoblox, highlighted the case of the 'Revolver Rabbit' cybercriminal gang, who have registered more than half-a-million domains to be used for the distribution of information-stealing malware. The gang make use of automated algorithms to register their domains, but unlike the long, pseudo-random ('high entropy') domain names frequently associated with such tools, the Revolver Rabbit domains instead tend to consist of hyphen-separated dictionary words (presumably so as to obfuscate their true purpose), with a string of digits at the end. more

A Cynic’s View of 2015 Security Predictions - Part 4

Lastly, and certainly not the least, part four of my security predictions takes a deeper dive into mobile threats and what companies and consumer can do to protect themselves. If there is one particular threat category that has been repeatedly singled out for the next great wave of threats, it has to be the mobile platform -- in particular, smartphones... The general consensus of prediction was that we're (once again) on the cusp of a pandemic threat. more

The Cyberthreats and Trends Enterprises Should Watch in 2016

Every year, Verisign iDefense Security Intelligence Services produces its Cyberthreats and Trends Report, which provides an overview of the key cybersecurity trends of the previous year and insight into how Verisign believes those trends will evolve. This report is designed to assist in informing cybersecurity and business operations teams of the critical cyberthreats and trends impacting their enterprises, helping them to anticipate key developments and more effectively triage attacks and allocate their limited resources. more

Megaupload Domains Seized by FBI Now Link to Scam Ads and Malware Due to Renewal Failure

Sean Gallagher reporting in Ars writes: "Earlier this week, something suspicious started happening with Web addresses related to sites seized by the FBI from Megaupload and a number of online gambling sites." more

When Cyber Awareness Is Fundamentally Lacking

"Smartphones (and tablets, WdN) are invading the battlefield", reports the Economist on its website of 8 October 2011. On the same day the hacking of U.S. drones is reported on by several news sites. ("They appear friendly". Keyloggers???) Is this a coincidence? more