Arriving at the Frankfurt airport late in the evening. The flight was almost on schedule so I have some 30 minutes left before the final leg to Helsinki. A nice opportunity to check my mail and the latest headlines. What a blessing with free WiFi on the airports! And Frankfurt is no exception; the “open network available” -indicator is on when I grab the phone. And there we have the welcome-screen that pops up in the browser. But wait a minute, this one looks different. “Please fill in your mobile phone number and select your country. We will send you an SMS with details about how to log into the wireless network.”
Stop! You should always stop and think when an unknown website asks for your mobile phone number (well, actually when asked for any kind of personal information). Knowing your number is the key prerequisite for someone who want to scam you with premium rate text messages. Ask yourself the following questions when you encounter a page like this:
Most people already know that one should be careful when entering mail addresses at fishy websites. Your junk mail folder may start to fill up much faster than before. But what about your mobile phone number? It’s easy to forget that the mobile number is a key to a billing system. It can be a lot more harmful if it gets in the wrong hands. You may get an unpleasant surprise in the next phone bill.
How does the scam work? Someone puts up a web page where you can sign up for anything that sounds interesting. A lottery is a typical example. Your phone number is required as part of your personal information. And you are of course keen to get it right as you want to make sure they can reach you if you win. There’s also the usual checkbox indicating that you accept the terms, but who cares about those legal details?
Well, you should care. Somewhere deep down in the terms there is a paragraph where you agree to receive informational text messages, or whatever they are called, for a price that can be several Euros each. Yes, that’s right. The billing system of our mobile phones supports messages that are paid by the recipient. This scheme is not even illegal as you have agreed to receive them. And needless to say, the sender is impossible to reach if you change your mind and want to terminate the agreement.
You should leave out your phone number or steer clear of the site if you have any doubts about it. If the organization isn’t trusted, but you still feel that you really have to participate, get familiar with the legal terms. Yes, I really mean reading them!
Another variant of the scam is to send you an unexpected text message that invites you to a quiz, a lottery or something else. Responding to the message means in practice that you sign up to the scam.
So what about Frankfurt? Well, the page asking for my phone number was pretty nicely designed. It looked legit. But there was a legal document that users must accept. So I decided to not use the network. It’s much nicer to spend the remaining 20 minutes before departure reading a good book about sailing in the Mediterranean than reading legal terms.
PS. I’m of course not claiming that the Frankfurt network login is a scam. The point is that I can’t know for sure, and I don’t have to take the risk as the benefit I could have gained was very small.
Photo by whiteafrican @ Flickr
F-Secure Labs reported this week on a new WhatsApp scam that’s successfully spammed over 22,000 people. Spam seems to be as old as the Internet itself, and is both a proven nuisance AND a lucrative source of revenue for spammers. Most people don’t see what goes on behind the scenes, but spammers often employ very sophisticated schemes that can expose web surfers to more than just ads for Viagara or other “magic beans”. Spam typically tries to drive Internet traffic by tricking people into clicking certain websites, where scammers can bombard unsuspecting web surfers with various types of advertising. Profit motives are what keep spammers working hard to circumvent spam blocks, white lists, and other protective measures that people use to try and fight back – and it can pay off. Numerous spammers have been indicted and suspected of generating hundreds of thousands of dollars in revenue from their spam campaigns, with one study projecting that spammers could generate in excess of 3.5 million dollars annually. While most spam circulates via e-mail, the popularity of services like WhatsApp is giving spammers new resources to exploit people, and new ways to make money. Here’s a few ways spammers and cyber criminals are using WhatsApp to make money off users: Following Malicious Links: One way that cyber criminals use WhatsApp to scam people is to trick them into following malicious links. For example, a recent scam sent SMS messages to WhatsApp users telling them to follow a link to update the app. But the message was not from WhatsApp, and the link didn’t provide them with any kind of update. It signed them up for an additional service, and added a hefty surcharge to victims' phone bills. Sending Premium Rate Messages: Premium rate SMS sending malware was recently determined by F-Secure Labs to be the fastest growing mobile malware threat, and WhatsApp gives cyber criminals a new way to engage in this malicious behavior. Basically the users receive a message that asks them to send a response – “I’m writing to you from WhatsApp, let me know here if you are getting my messages”, “Get in touch with me about the second job interview”, and various sexual themed messages have all been documented. Responding to these messages automatically redirects your message through a premium rate service. Spanish police claim that one gang they arrested made over 5 million euros using this scheme – leaving everyday mobile phone users to foot the bill. Manipulating Web Traffic: A lot of spam tries to direct web traffic to make money off advertising. As you might imagine, this means they have to get massive numbers of people to look at the ads they’re using for their scams. Scammers use WhatsApp to do this by using the app to spread malware or social engineer large numbers of people to visit a website under false pretenses. F-Secure Labs found that people were being directed to a website for information on where they could get a free tablet. In March there was a global spam campaign claiming people could test the new WhatsApp calling feature. Both cases were textbook scams, and instead of getting new tablets or services, the victims simply wasted their time spreading misleading spam messages and/or exposing themselves to ads. WhatsApp and other services are great for people, but like any new software, requires a bit of understanding to know how to use. Hopefully these points give WhatsApp users a heads up on how they can avoid spam and other digital threats, so they can enjoy using WhatsApp to chat with their friends. [ Image by Julian S. | Flickr ]
Espionage – it’s not just for James Bond type spies anymore. Cyber espionage is becoming an increasingly important part of global affairs, and a threat that companies and organizations handling large amounts of sensitive data are now faced with. Institutions like these are tempting targets because of the data they work with, and so attacks designed to steal data or manipulate them can give attackers significant advantages in various social, political and industrial theaters. F-Secure Labs’ latest malware analysis focuses on CozyDuke – an Advanced Persistent Threat (APT) toolkit that uses combinations of tactics and malware to compromise and steal information from its targets. The analysis links it to other APTs responsible for a number of high-profile acts of espionage, including attacks against NATO and a number of European government agencies. CozyDuke utilizes much of the same infrastructure as the platforms used in these attacks, effectively linking these different campaigns to the same technology. “All of these threats are related to one another and share resources, but they’re built a little bit differently to make them more effective against particular targets”, says F-Secure Security Advisor Sean Sullivan. “The interesting thing about CozyDuke is that it’s being used against a more diverse range of targets. Many of its targets are still Western governments and institutions, but we’re also seeing it being used against targets based in Asia, which is a notable observation to make”. CozyDuke and its associates are believed to originate from Russia. The attackers establish a beachhead in an organization by tricking employees into doing something such as clicking a link in an e-mail that distracts users with a decoy file (like a PDF or a video), allowing CozyDuke to infect systems without being noticed. Attackers can then perform a variety of tasks by using different payloads compatible with CozyDuke, and this can let them gather passwords and other sensitive information, remotely execute commands, or intercept confidential communications. Just because threats like CozyDuke target organizations rather than individual citizens doesn’t mean that they don’t put regular people at risk. Government organizations, for example, handle large amounts of data about regular people. Attackers can use CozyDuke and other types of malware to steal data from these organizations, and then use what they learn about people for future attacks, or even sell it to cyber criminals. The white paper, penned by F-Secure Threat Intelligence Analyst Artturi Lehtiö, is free and available for download from F-Secure’s website. [ Image by Andrew Becraft | Flickr ]
Malware is an omniscient threat – it’s present even when people don’t realize it. Understanding the threat is a key component of protecting yourself and your devices, and nothing drives that point home like cold hard facts and comprehensive research. F-Secure just released its latest Threat Report, which provides important insights into contemporary digital threats. The report details the various changes and trends in the digital threat landscape using data collected during the 2nd half of 2014. The threat report is full of important information, and it’s worth checking out to get some ideas about what attackers are cooking up. Trends like social media malware, exploits, and ransomware are detailed in the report. But there’s tons of important information people should be aware of, and so we put together an infographic to give you a quick overview of the report. The report provides lots more information about the threats, incidents, and trends that were prominent in the latter half of 2014. There's also some insightful words penned by F-Secure security researchers to give you a little context about why you need to arm yourself with knowledge to defend yourself against digital threats. You can download the full threat report for free from F-Secure’s website.