Three Mistakes Organizations Make Regarding DDoS Attacks

June 17th, 2014

DDoS Attack concept

A distributed denial-of-service attack, or DDoS, often makes headlines for attacks on large enterprises and popular websites. Victims of DDoS attacks come in all sizes, however. These highly targeted attacks can be launched against any organization to slow operations to a crawl or a standstill. When faced with a DDoS attack, it’s important to take the right actions in order to keep it from crippling your network. At Dark Reading, Kelly Jackson Higgins reveals what not to do in your preparations for potential attacks.

  • No Plan

The absolute worst case scenario is assuming that your business won’t be targeted by a DDoS attack. There’s certainly a chance you could be right, but it’s a big gamble. If you are attacked without a plan in place, you risk being unable to serve your customers for weeks. Putting the proper security tools in place before an attack allows you to recover quickly, or in many cases avoid any damages or downtime. Too often organizations wait until an attack is already taking place to act. By then, the time required to mitigate the attack is multiplied.

  • Failure To Test

Just putting precautionary measures in place isn’t enough, however. One infamous story explains how a large banking institution implemented a DDoS mitigation service, but when they put their plan into action for the first time, their entire network went down. Failing to properly test your mitigation system before it’s needed isn’t so different from having no system at all. In other cases, mitigation services have been known to slow down services. During an attack, this might be attributed as a DDoS side effect. Without proper testing, you may be doing harm to your own network and services.

  • No Relationship With Your ISP

Your internet service provider is the first line of defense in most DDoS attacks. From a so-called “upstream” vantage point, ISP’s are able to see if malicious traffic is targeting a specific network or application. While you may be locked out of your own network due to an influx of traffic, your ISP could be able to limit that traffic or even stop it before it does any damage. Once again, once an attack has started it’s already too late. The key is to partner with your ISP early and ensure that they’re monitoring activity for signs of a possible DDoS.

DDoS attacks are able to knock services offline and prevent you from doing business and serving your customers. To find out what security measures are needed, call Geek Rescue at 918-369-4335.

 

Follow These Steps To Opt-Out Of Facebook’s New Browsing History Tracking Policy

June 13th, 2014

Facebook on iPhone

It’s long been understood that Google, Facebook and many other popular websites record users’ data. That data is used a variety of different ways, but most commonly it’s to produce more targeted ads that are relevant to you. This week, Facebook announced that they’ll begin collecting data from users’ browsing history for advertisement purposes over the coming weeks. Naturally, many users feel this is too invasive. At Gizmodo, Ashley Feinberg published a detailed walk-through for how to opt out of Facebook’s new policy. Here are the steps you’ll need to take.

  • Initial Information

The first thing to understand is that Facebook collects and uses this information by default, so if you don’t want to participate, it requires some proactive effort on your part. To do that, visit the Digital Advertising Alliance’s ‘Opt Out From Behavioral Online Advertising’ page. Turn off any type of ad blocker and make sure to enable cookies for the site to work. To be clear, this doesn’t stop Facebook from collecting information about your browsing history. This only limits how they are able to use that data. Unfortunately, if you want to keep your Facebook account, you’re pretty much accepting that they track your online behavior.

  • Companies Collecting Data

Your first action at the Digital Advertising Alliance’s page should be to use the ‘Companies Customizing Ads For Your Browser’ tab. Scroll down to Facebook and check mark it. This is a good time to also look at other websites and companies who have similar policies and opt out as you need to. Then, with all companies that you want checked, hit ‘Submit’.

  • Mobile

Chances are, you’re using Facebook’s mobile app also. To opt out on an Apple device, go to the ‘General Settings’ tab and open ‘Restrictions’ then ‘Advertising’. ‘Limit Ad Tracking’ will be a switch you can simply turn off. For Android users, visit the ‘Google Settings’ tab then ‘Ads’. Select ‘Opt-Out Of Internet Based Ads’ and you’re done.

That’s all it takes to be free from overly-invasive data collection on Facebook and other websites. Again, this doesn’t stop them from collecting data, it only stops them from using it to target you with ads.

For help locking down your valuable data, improving your computer’s security or other IT issues, call Geek Rescue at 918-369-4335.

Cyber Attacks Cost Companies Billions Worldwide

June 10th, 2014

Burning money concept

Whether you’re attempting to secure your personal computer, or securing your company’s network, the threat of computer-related crimes is incredibly motivating. Cyber crime cost an estimated $400-billion worldwide last year according to a study released by McAfee and a Washington D.C. based think tank. That number is likely to continuously grow in the coming years. At TechWorld, Jeremy Kirk reports on these findings.

The $400-billion figure is actually on the low-end of the estimated cost of cyber crime. Cyber attack related costs could actually be closer to $575-billion annually.

An estimate is necessary despite the study’s authors conducting in-depth research and data collection because the definition of cyber crime varies from country to country. In fact, some nations have made no effort to track and calculate the cost of this type of crime at all. In addition to these factors, many incidents and attacks go unreported and, in the case of large scale attacks on corporations, the exact cost of an attack is often never known.

The cost the think tank and McAfee arrived at also factors in both the direct and indirect cost of cyber attacks. This includes the amounts spent on attempting to secure against them, as well as the cost to recover and the cost to reputation from having been a victim.

Not surprisingly, businesses in the US suffered higher losses categorized as cyber crime than any other nation. As more vital business functions are moved online, these companies become even more of a target. For this reason, it’s expected that cyber attacks will cost even more in the coming years.

Targeted attacks are usually launched against networks with high value and vulnerabilities that permit ease of access. While it’s impossible to be completely secure from every threat, investing in security makes it more difficult to be exploited, which makes you a less attractive target to criminals.

For help improving security or to recover from an attack, call Geek Rescue at 918-369-4335.

Ransomware Partners With Malvertising In Recent Attacks

June 9th, 2014

Cyber Attack road sign

Ransomware has surged in popularity for attackers over the past year. In a ransomware attack, a user’s files are encrypted and only released once a ransom is paid. Usually, this type of malware finds its way onto a user’s device through a malicious email attachment, or phishing website set-up specifically for infection. Neither of these methods are particularly efficient for criminals, however. That’s why, as Jeremy Kirk reports at TechWorld, ransomware attacks have begun appearing in conjunction with malicious advertisements on trusted websites.

Disney, Facebook and the Guardian Newspaper’s website were all found to be hosting malicious ads by Cisco Systems, who called the practice “insidious”. Also known as malvertising, legitimate websites are tricked into displaying ads that redirect users to malicious domains. While advertising networks are working hard at protecting websites against malvertising, their security is far from perfect, which leads to attacks like these.

For users, not only is the website trusted, but so is the ad. The advertisement of legitimate and trusted companies is shown, but while the user is expecting to visit that company’s website, a click actually delivers them to a site that downloads malware to their device.

In the attacks noticed by Cisco, an exploit kit on the malicious site checked for any vulnerabilities in a user’s version of Flash, Java or Silverlight. Those who hadn’t patched vulnerabilities were exploited and a ransomware relative of Cryptolocker, called CryptoWall, was installed. CryptoWall then encrypted files and demanded a ransom. The longer a user delays, the higher the ransom gets.

The group behind the attacks hasn’t been identified yet and no real protection is being offered. To avoid infection, you could avoid clicking on any advertisements online, but even that doesn’t protect you against attacks that only require the display of malvertisements. A better course of action would be to ensure that all of your applications are fully updated and patched. Then, be aware of what you’re clicking on and what website you expect to load.

If any of your devices are infected with malware, come to Geek Rescue or give us a call at 918-369-4335.

New Malware Attack Isn’t Cryptolocker, Still Dangerous

June 4th, 2014

Malware written on circuit board

Cryptolocker unveiled itself in 2013 as one of the worst malware threats on the web. Victims saw their files encrypted only to be released after a ransom payment was made, and even then sometimes the files would remain inaccessible. A new spam email scheme, as reported on the Symantec blog, uses the Cryptolocker name, but actually infects users with another form of crypto malware.

While the malware used in this attack isn’t Cryptolocker, it performs similarly. Users’ files are encrypted and a ransom is demanded. The use of the Cryptolocker name is perhaps to convince users that there’s no way around the encryption. Cryptolocker uses notoriously difficult, or nearly impossible, to break encryption. While this threat’s encryption hasn’t been closely analyzed, it’s likely that it hasn’t been crafted as carefully.

The attack begins with an email arriving appearing to be from an energy company. Users are told that they have an outstanding debt on an electric bill. That should be the first clue for most users. In this sense, this particular threat is more believable than others. Many companies, including electric providers, often send an email to customers telling them their latest bill is ready.

The message contains a link supposedly allowing users to view their bill. It directs them to a website containing a CAPTCHA. The number you’re directed to enter never changes, however. From there, users arrive on a page with a link to download their bill. It downloads as a file disguised as a .PDF. Again, this is all fairly believable.

Opening that file, however, immediately causes files to be encrypted and a text file pops-up informing the victim that they’ve been hacked with Cryptolocker. They’re informed to send an email to a provided address to start the ransom process.

There’s an added feature to this attack also. The malware checks to see if the user is running email client Outlook or Thunderbird. If you are, your contact list is stolen and sent to the attacker, presumably to help spread the malware to more users.

As with any other crypto attack, the key is to avoid infection. Once your files are encrypted, it’s extremely difficult to unlock them. Avoid these threats by being extremely cautious about following links in emails and downloading attachments. Also, regularly back-up your important files in case they’re encrypted or corrupted.

For help recovering from a malware infection, call Geek Rescue at 918-369-4335.

Beware The Promise Of The ‘Heartbleed Removal Tool’

June 3rd, 2014

Phishing concept

About two months ago, the Heartbleed bug was the scourge of the internet. Since then, websites have scurried to update and patch the vulnerabilities that could potentially lead to the theft of their users’ data. As Jeremy Kirk of Computer World reports, the Heartbleed name is still being used to strike fear into users only now it’s in association with a phishing scam.

Security firm TrendMicro reports that spam emails are being distributed that promise a “Heartbleed removal tool”. Individuals who have some understanding of what Heartbleed is will understand that it isn’t a virus or malware that can simply be removed. But, others who are familiar with the name ‘Heratbleed’ but unfamiliar with any other details are being fooled.

The attachment to these emails, the supposed removal tool, is actually a keylogger, which is used to record the keystrokes of the user and sends them to the criminal who launched this attack.

Given the apparent misunderstanding of Heartbleed, this scam is already poorly constructed, but it falls apart even more when you consider the content of the email. While the body contains a warning about Heartbleed and urges users to run the attached removal tool, the subject line reads “Looking For Investment Opportunities from Syria”. A more spammy email subject has rarely been written and, of course, the subject and body don’t match.

These characteristics make this particular scam easy to spot for users and spam filters, but criminals trading on the Heartbleed name isn’t likely to stop anytime soon. Be wary of any email, even those purporting to be from legitimate companies, that advises you to protect yourself from Heartbleed. Don’t follow links in those emails and don’t download the attachments.

If your computer is infected by malware, Geek Rescue is here to help. Call us at 918-369-4335.

How Apps Complicate Security For Your Business

June 2nd, 2014

Mobile apps on smartphone concept

For businesses, creating a secure IT infrastructure is difficult even if you’re only working with a handful of desktop computers that all run the same operating system and applications. Complications come from adding new devices, especially when employees begin using their own personal devices on your network. In most cases, it’s not the devices themselves that cause problems, but rather the apps they’re running. At Beta News, Ian Barker explains how mobile apps threaten the security of your business.

Even for individual users, relatively secure smartphones are exploited through security vulnerabilities in mobile apps. These aren’t malicious apps, but rather legitimate apps that contain flaws and hold high risk permissions.

According to studies, the average smartphone contains about 200 apps. This includes apps that come pre-installed from the manufacturer or service provider and those that the user downloads themselves. Each app averages about 9 permissions, or abilities to access and use your phone’s data, which includes access to your social media profiles, location and more. Of these nine permissions, about five would be considered high risk on average for each app. This means if the app were exploited, a criminal could cause significant harm to your device, or to your finances and identity, through these high risk permissions.

For businesses, this introduces hundreds of potential vulnerabilities for each employee and multiple data leaks associated with each vulnerability. Mobile security specialist, Mojave, categorizes about half of the mobile apps they examine to be at least moderate risk, which means they have access to a large amount of valuable data and don’t have a large amount of security associated with them.

Keeping your business secure requires close attention to not only every device that connects to your network, but also every application that device is running. Without that, you risk an employee opening the door for an attack that compromises your company’s data, or your customer’s.

For help securing your business, or recovering from an attack, call Geek Rescue at 918-369-4335.

Three Fast Ways To Improve Your PC’s Security

May 30th, 2014

Hand holding stopwatch

Implementing proper security features on your computer isn’t high on most individual’s priority list. The assumption is that it will take hours to install new antivirus software and make other necessary changes. But, in reality, some significant improvements can be made in just a few minutes. Andy O’Donnell of About offers his “10-minute security tune-up”. While these won’t make you computer immune to malware infections, they are helpful.

  • Patch and Update

Whether it’s your operating system, browser, antivirus program or other applications, it’s important to keep them updated and install the latest patches released by the developer. It’s a quick and easy process, but it protects you from some of the most dangerous threats to your PC. Patches and updates are often released to fix a vulnerability that has been demonstrated to be exploitable by criminals. So, failing to install these updates leaves a known security flaw open. That’s like asking for trouble. Similarly, updating your antivirus program allows it to stay up to date with the latest recognizable threats so it can identify them on your PC or stop them from infecting it in the first place.

  • Second Scanner

Most users have an antivirus scanner installed on their PC, but have you ever considered the need for a second one? Even if you keep a trusted antivirus program updated, it’s still likely to miss a few threats. Some experts suggest adding a second antivirus scanner to identify problems that would have slipped through. This can potentially cause issues if both antivirus programs are set to actively scan at all times. Instead, you may consider using your primary antivirus program at all times, then run additional, regularly scheduled scans with your secondary scanner.

  • Create Back-Ups

Regardless of how many security tools you put in place, there is always the chance of a catastrophe. Cyber attacks grow more intelligent every day and it’s impossible to close every potential vulnerability. Even if your PC isn’t taken down by malware, you could lose your data because of a hardware issue or natural disaster. That’s why it’s important to regularly back-up all the important data stored on your hard drive. With cloud storage readily available, you can even store it off site so the loss of your computer doesn’t mean the loss of your back-ups.

As mentioned, no security is perfect. If any of your devices are infected with malware or you’re experiencing other issues, call Geek Rescue at 918-369-4335.

A Windows XP Hack To Prolong Support From Microsoft?

May 29th, 2014

Microsoft building

Microsoft ended support for their operating system, Windows XP, on April 8th. Since then, users continuing to use XP have been at risk of attacks via known exploits because no patches are being released to fix them. One security expert has discovered a potential workaround, however. Gregg Keizer of ComputerWorld explains how users could trick Microsoft into delivering patches to their outdated operating system.

To understand this hack, you first need to get to know another Microsoft operating system, Windows Embedded POSReady 2009. In this case, POS stands for point of sale. This operating system was developed for use in cash registers, ATMs and other point of sale devices. It shares the same core as Windows XP, however. It also will enjoy support from Microsoft for another five years.

So, the security experts hack involved tricking Microsoft into thinking an XP system was actually an Embedded POSReady 2009 system. The updates and patches delivered aren’t developed specifically for XP, but the environment is close enough that they reportedly don’t cause crashes, blue screens or other errors.

Before you start thinking that this will keep your XP machine protected for five years, understand that neither Microsoft, nor the security expert who developed this hack, is sold on it effectively patching vulnerabilities. A Microsoft spokesman told the public that these patches intended for POSReady 2009 won’t fully protect XP users. Microsoft’s stance is that users need to upgrade to Windows 7 or 8 as soon as possible.

However, some businesses have built their entire infrastructure on XP and upgrading isn’t a simple option. For those individuals, wouldn’t doing something to protect themselves be better than nothing?

Doing something is certainly preferred, but implementing this hack might not be the smartest choice. Instead, switching web browsers from Internet Explorer to Chrome or Firefox should be an XP users first move. Both Google and Mozilla have continued support for their browsers used with XP. There are also security tools to implement that would help protect against the gaping, known security flaws in XP. It’s not a patch that ends the possibility of an exploit, but it is additional protection.

Whether your computer has been infected, or you’d like to improve security, call Geek Rescue at 918-369-4335.

Five Areas To Consider Before Transitioning Your Business To The Cloud

May 28th, 2014

Cloud concept

No doubt you’ve heard about and read about the capabilities, features and benefits of transitioning your business, or at least a portion of it, to the cloud. Before diving into it, however, you’ll need to carefully assess your needs. At Beta News, Andy Lancaster published a list of key areas to consider that will affect the transition to the cloud and the operations of it.

  • Asset Utilization

Most likely, your on-site IT solutions have been built to handle the peak workload of your operations. This means that much of the time, assets and resources are being wasted, which means money is being wasted. The advantage of the cloud in this context is that it is flexible and able to quickly scale up and scale down. A careful assessment of your assets and their use will allow you to accurately gauge your needs and plan for peak usage.

  • Migration

Transitioning to the cloud can be a tricky process. Before moving any of your storage or applications off of your on-site servers, you’ll want to carefully consider which will be best served on the cloud and what order they’ll need to transition. Not every application will offer benefits by being in the cloud and some may need to migrate at a different time than others. Planning ahead allows to save on costs, reduce downtime and results in a better, more stable environment.

  • Integration

Some applications can be moved directly from a physical server environment to the cloud with little to no alterations. Some require more attention, however. Effectively integrating some applications with the cloud may require “re-architecting” in order to efficiently host them. This could affect your decision to transition that application to the cloud so it’s important to consider this factor.

  • Security

Security is a primary concern for businesses integrating with the cloud. You’ll want to consider where data will physically reside, how the data center is protected and who will have access and maintenance responsibilities. Also, think about how you handle security in your organization now and consider how integrating the cloud could complicate, or streamline those operations.

  • Disaster Recovery

Most likely, you’re conducting regular back-ups and planning for disaster recovery in-house currently. Transitioning these responsibilities to the cloud frees up resources and IT staff. Be sure to consider how you’ll re-appoint staff and think about if you’ll be able to get rid of servers and other hardware.

Introducing the cloud to your company’s IT infrastructure can save time and money, but it needs to be done intelligently.

At Geek Rescue, we help you use the cloud effectively for the maximum benefit to your business. To find out more about cloud solutions, call us at 918-369-4335.