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Social Media Malware is Deviant, Destructive

We’ve seen some tricky techniques used by cybercriminals to distribute malware through social media. One common threat begins with a previously compromised Facebook account sending deceptive messages that contain SVG image attachments via Facebook Messenger. (The SVG extention is an XML-based vector image format for two-dimensional graphics with support for interactivity and animation.)

Cybercriminals prefer this XML-based image as it allows dynamic content. This enables the criminals to add malicious JavaScript code right inside the photo itself—in this case, linking to an external site. Users who click on the image find themselves on a website posing as YouTube that pushes a popup to install a browser extension or add-on or to view a video. There are plenty of red flags here like the URL clearly not being YouTube.com, as well as the fact that YouTube does not require any extensions to view videos.

 

Facebook messenger spreading an SVG image containing a harmful script

 

An example of a fake YouTube page with malicious browser extension popup

Worm-like propagation

If a you were to install this extension, it will take advantage of your browser access to your Facebook account to secretly mass-message your friends with the same SVG image file—like a worm, this is how it spreads. Victims don’t need to have very many friends for this tactic to be successful at propagating. For instance, if you have over 100 friends, then you only need less than 1% of your friends to fall for this for the scam for it to continue to propagate.

To make matters worse, the extension also downloads Nemucod, a generic malware downloader generally used to download and install a variety of other threats. Usually the go-to threat is ransomware given it’s proven business model for criminals.

Social media managers at risk

Those who manage social media accounts on behalf of businesses are particularly at risk of advanced malware and other cyberattacks. Earlier this spring, a new Windows trojan dubbed Stresspaint was found hidden inside a fake stress-relief app and likely spread through email and Facebook spam campaigns to infect 35,000 users, according to researchers at Radware who discovered the malware.

Stresspaint was rather deviant in the way it stole Facebook account credentials and logged into accounts looking specifically for data such as “each user’s number of friends, whether the account manages a Facebook Page or not, and if the account has a payment method saved in its settings,” according to Bleeping Computer.

Allowing cybercriminals to gain control of brand social media accounts can carry grave consequences such as reputation damage, loss of confidential information, and deeper access into an organization’s network. Last year, HBO was humiliated on their social profiles when the notorious hacker group OurMine breached several the network’s accounts and posted messages before the company finally regained control of their logins.

Crypto users targeted

Following the recent trend in malware, sophisticated variants of existing strains are now aimed at cryptocurrency users. A malicious Google Chrome extension called FacexWorm, which spreads through Facebook Messenger, was found to have morphed with a new ability to hijack cryptocurrency transactions made on a host of popular online exchanges, according to Coindesk. This further underlines the importance of exercising caution with the information you share on social media to avoid being a target, particularly if you are a user of cryptocurrency.

Cryptocurrency scams are another common threat that spreads throughout social media. Twitter is particularly notorious an outbreak of crypto scam bots that pose as high-profile tech leaders and industry influencers. Learn more about this type scam in my previous post.

Don’t let your guard down

Given the nature of social networks, many are likely to consider themselves to be in the company of friends on sites like Facebook, Instagram and Twitter. However, this assumption can be dangerous when you begin to trust links on social sites more than you would in your email inbox or other websites. For instance, a simple bot-spam message on Twitter was able to grant a hacker access to a Pentagon official’s computer, according to a New York Times report published last year.

It’s wise to be wary of clicking on all links, even those sent by friends, family or professional connections, as compromised social media accounts are often used to spread scams, phishing, and other types of cyberattacks. After all, just one wrong click can lead to an avalanche of cyber woes, such as identity theft, data loss, and damaged devices.


This article was provided by our service partner : webroot.com

smishing

‘Smishing’: SMS and the Emerging Trend of Scamming Mobile Users via Text Messages

Text messages are now a common way for people to engage with brands and services, with many now preferring texts over email. But today’s scammers have taken a liking to text messages or smishing, too, and are now targeting victims with text message scams sent via shortcodes instead of traditional email-based phishing attacks.

What do we mean by shortcodes

Businesses typically use shortcodes to send and receive text messages with customers. You’ve probably used them before—for instance, you may have received shipping information from FedEx via the shortcode ‘46339’. Other shortcode uses include airline flight confirmations, identity verification, and routine account alerts. Shortcodes are typically four to six digits in the United States, but different countries have different formats and number designations.

The benefits of shortcodes are fairly obvious. Texts can be more immediate and convenient, making it easier for customers to access links and interact with their favorite brands and services. One major drawback, however, is the potential to be scammed by a SMS-based phishing attack, or ‘Smishing’ attack. (Not surprisingly given the cybersecurity field’s fondness for combining words, smishing is a combination of SMS and phishing.)

All the Dangers of Phishing Attacks, Little of the Awareness

The most obvious example of a smishing attack is a text message containing a link to mobile malware. Mistakenly clicking on this type of link can lead to a malicious app being installed on your smartphone. Once installed, mobile malware can be used to log your keystrokes, steal your identity, or hold your valuable files for ransom. Many of the traditional dangers in opening emails and attachments from unknown senders are the same in smishing attacks, but many people are far less familiar with this type of attack and therefore less likely to be on guard against it.

Smishing for Aid Dollars

Another possible risk in shortcodes is that sending a one-word response can trigger a transaction, allowing a charge to appear on your mobile carrier’s bill. When a natural disaster strikes, it is common for charities to use shortcodes to make it incredibly easy to donate money to support relief efforts. For instance, if you text “PREVENT” to the shortcode 90999, you will donate $10 USD to the American Red Cross Disaster Relief Fund.

But this also makes it incredibly easy for a scammer to tell you to text “MONSOON” to a shortcode number while posing as a legitimate organization. These types of smishing scams can lead to costly fraudulent charges on your phone bill, not to mention erode aid agencies ability to solicit legitimate donations from a wary public. A good resource for determining the authenticity of a shortcode in the United States is the U.S. Short Code Directory. This site allows you to look up brands and the shortcodes they use, or vice versa.

Protect yourself from Smishing Attacks

While a trusted mobile security app can help you stay protected from a variety of mobile threats, avoiding smishing attacks demands a healthy dose of cyber awareness. Be skeptical of any text messages you receive from unknown senders and assume messages are risky until you are sure you know the sender or are expecting the message. Context is also very important. If a contact’s phone is lost or stolen, that contact can be impersonated. Make sure the message makes sense coming from that contact.


This article was provided by our service partner : webroot.com

 

 

 

Re-Thinking ‘Patch and Pray’

When WannaCry ransomware spread throughout the world last year by exploiting vulnerabilities for which there were patches, we security “pundits” stepped up the call to patch, as we always do. In a post on LinkedIn Greg Thompson, Vice President of Global Operational Risk & Governance at Scotiabank expressed his frustration with the status quo.

Greg isn’t wrong. Deploying patches in an enterprise department requires extensive testing prior to roll out. However, most of us can patch pretty quickly after an announced patch is made available. And we should do it!

There is a much larger issue here, though. A vulnerability can be known to attackers but not to the general public. Managing and controlling vulnerabilities means that we need to prevent the successful exploitation of a vulnerability from doing serious harm. We also need to prevent exploits from arriving at a victim’s machine as a layer of defense. We need a layered approach that does not include a single point of failure–patching.

A Layered Approach

First off, implementing a security awareness training program can help prevent successful phishing attacks from occurring in the first place. The 2017 Verizon Data Breach Investigations Report indicated that 66% of data breaches started with a malicious attachment in an email—i.e. phishing. Properly trained employees are far less likely to open attachments or click on links from phishing email. I like to say that the most effective antimalware product is the one used by the best educated employees.

In order to help prevent malware from getting to the users to begin with, we use reputation systems. If almost everything coming from http://www.yyy.zzz is malicious, we can block the entire domain. If much of everything coming from an IP address in a legitimate domain is bad, then we can block the IP address. URLs can be blocked based upon a number of attributes, including the actual structure of the URL. Some malware will make it past any reputation system, and past users. This is where controlling and managing vulnerabilities comes into play.

The vulnerability itself does no damage. The exploit does no damage. It is the payload that causes all of the harm. If we can contain the effects of the payload then we are rethinking how we control and manage vulnerabilities. We no longer have to allow patches (still essential) to be a single point of failure.

Outside of offering detection and blocking of malicious files, it is important to stop execution of malware at runtime by monitoring what it’s trying to do. We also log each action the malware performs. When a piece of malware does get past runtime blocking, we can roll back all of the systems changes. This is important. Simply removing malware can result in system instability. Precision rollback can be the difference between business continuity and costly downtime.

Some malware will nevertheless make it onto a system and successfully execute. It’s at this point we observe what the payload is about to do. For example, malware that tries to steal usernames and passwords is identified by the Webroot ID shield. There are behaviors that virtually all keyloggers use, and Webroot ID Shield is able to intercept the request for credentials and returns no data at all. Webroot needn’t have seen the file previously to be able to protect against it. Even when the user is tricked into entering their credentials, the trojan will not receive them.

There is one essential final step. You need to have offline data backups. The damage ransomware does is no different than the damage done by a hard drive crash. Typically, cloud storage is the easiest way to automate and maintain secure backups of your data.

Greg is right. We can no longer allow patches to be a single point of failure. But patching is still a critical part of your defensive strategy. New technology augments patching, it does not replace it and will not for the foreseeable future.


This article was provided by our service partner Webroot.

meltdown spectre

Spectre, Meltdown, & the CLIMB Exploit: A Primer on Vulnerabilities, Exploits, & Payloads

In light of the publicity, panic, and lingering despair around Spectre and Meltdown, I thought this might be a good time to clear up the differences between vulnerabilities, exploits, and malware. Neither Spectre nor Meltdown are exploits or malware. They are vulnerabilities. Vulnerabilities don’t hurt people, exploits and malware do. To understand this distinction, witness the CLIMB exploit:

The Vulnerability
Frequently, when a vulnerability is exploited, the payload is malware. But the payload can be benign, or there may be no payload delivered at all. I once discovered a windows vulnerability, exploited the vulnerability, and was then able to deliver the payload. Here’s how that story goes:

It’s kind of embarrassing to admit, but one evening my wife and I went out to dinner, and upon returning, realized we had a problem. It wasn’t food poisoning. We were locked out of our house. The solution was to find a vulnerability, exploit it, and get into the house. The vulnerability I found was an insecure window on the ground floor.

With care I was able to push the window inward and sideways to open it. From the outside, I was able to bypass the clasp that should have held the window closed. Of course, the window was vulnerable for years, but nothing bad came of it. As long as nobody used (exploited) the vulnerability to gain unauthorized access to my home, there was no harm done. The vulnerability itself was not stealing things from my home. It was just there, inert. It’s not the vulnerability itself that hurts you. It’s the payload. Granted, the vulnerability is the enabler.

The window was vulnerable for years, but nothing bad happened. Nobody attacked me, and while the potential for attack was present, an attack (exploit) is not a vulnerability. The same can be true of vulnerabilities in software. Opening the window is where the exploit comes in.

The Exploit
My actual exploit occurred in two stages. First, there was proof of concept (POC). After multiple attempts, I was able to prove that the vulnerable window could be opened, even when a security device was present. Next, I needed to execute the Covert Lift Intrusion Motivated Breach (CLIMB) exploit. Yeah, that means I climbed into the open window, a neat little exploit with no coding required. I suppose I could have broken the window, but I really didn’t want to brick my own house (another vulnerability?).

The Payload
Now we come to the payload. In this case, the payload was opening the door for my wife. You see, not all payloads are malicious. If a burglar had used the CLIMB exploit, they could have delivered a much more harmful payload. They could have washed the dishes (they wouldn’t, unless they were Sheldon Cooper), they could have stolen electronic items, or they could have planted incriminating evidence. The roof is the limit.

Not all vulnerabilities are as easy to exploit as others. All of my second-floor windows had the same vulnerability, but exploiting them would have been more difficult. I am sure happy that I found the vulnerability before a criminal did. Because I was forgetful that fateful night, I’m also happy the vulnerability was there when I found it. As I said, I really didn’t want to break my own window. By the way, I “patched” my windows vulnerability by placing a wooden dowel between the window and the wall.

There you have it. Vulnerabilities, exploits, and payloads explained through the lens of the classic CLIMB exploit.


This article was provided by our service partner : Webroot

Data Privacy

Security : 3 Pitfalls Facing Privacy in 2018

Earlier this month, CES attendees got a taste of the future with dazzling displays of toy robots, smart assistants, and various AI/VR/8K gadgetry. But amid all the remarkable tech innovations on the horizon, one thing is left off the menu: user privacy. As we anticipate the rocky road ahead, there are three major pitfalls that have privacy experts concerned.

Bio hazard

Biometric authentication—using traits like fingerprints, iris, and voice to unlock devices—will prove to be a significant threat to user privacy in 2018 and beyond. From a user’s perspective, this technology streamlines the authentication process. Convenience, after all, is the primary commodity exchanged for privacy.

Mainstream consumer adoption of biometric tech has grown leaps and bounds recently, with features such as fingerprint readers becoming a mainstay on modern smartphones. Last fall, Apple revealed its Face ID technology, causing some alarm among privacy expertsA key risk in biometric authentication lies in its potential as a single method for accessing multiple devices or facilities.  You can’t change your fingerprints, after all. Biometric access is essentially akin to using the same password across multiple accounts.

“Imagine a scenario where an attacker gains access to a database containing biometric data,” said Webroot Sr. Advanced Threat Research Analyst Eric Klonowski. “That attacker can then potentially replay the attack against a variety of other authenticators.”

That’s not to say that biometrics are dead on arrival. Privacy enthusiasts can find solace in using biometrics in situations such as a two-factor authentication supplement. And forward-thinking efforts within the tech industry, such as partnerships forged by the FIDO Alliance, can help cement authentication standards that truly protect users. For the foreseeable future, however, this new tech has the potential to introduce privacy risks, particularly when it comes to safely storing biometric data.

Big data, big breaches

2017 was kind of a big year for data breaches. Equifax, of course, reined king by exposing the personal information (including Social Security Numbers) of some 140 million people in a spectacular display of shear incompetence. The Equifax breach was so massive that it overshadowed other big-data breaches from the likes of Whole Foods, Uber, and the Republican National Committee.

It seems no one—including the government agencies we trust to guard against the most dangerous online threats—was spared the wrath of serious data leaks. Unfortunately, there is no easy remedy in sight, and the ongoing global invasion of user privacy is forcing new regulatory oversight, such as the upcoming GDPR to protect EU citizens. The accelerated growth of technology, while connecting our world in ways never thought possible, has also completely upended traditional notions surrounding privacy.

The months ahead beg the question: What magnitude of breach will it take to trigger a sea change in our collective expectation of privacy? 

Talent vacuum

The third big issue that will continue to impact privacy across the board is the current lack of young talent in the cybersecurity industry. This shortfall is a real and present danger. According to a report by Frost & Sullivan, the information security workforce will face a worldwide talent shortage of 1.5 million by 2020.

Some of this shortfall is partly to blame on HR teams that fail to fully understand what they need to look for when assessing job candidates. The reality is that the field as a whole is still relatively new and is constantly evolving. Cybersecurity leaders looking to build out diverse teams are wise to search beyond the traditional background in computer science. Webroot Vice President and CISO Gary Hayslip explained that a computer science degree is not something on his radar when recruiting top talent for his teams.

“In cyber today, it’s about having the drive to continually educate yourself on the field, technologies, threats and innovations,” said Hayslip. “It’s about being able to work in teams, manage the resources given to you, and think proactively to protect your organization and reduce the risk exposure to business operations.

Beyond shoring up recruiting practices for information security roles, organizations of all types should consider other tactics, such as providing continual education opportunities, advocating in local and online communities, and inevitably replacing some of that human talent with automation.


This article was provided by our service partner : webroot.com 

Internet Security : How to Avoid Phishing on Social Media

From Facebook to LinkedIn, social media is flat-out rife with phishing attacks. You’ve probably encountered one before… Do fake Oakley sunglasses sales ring a bell?

Phishing attacks attempt to steal your most private information, posing major risks to your online safety. It’s more pressing than ever to have a trained eye to spot and avoid even the most cunning phishing attacks on social media.

Troubled waters

Spammers on social media are masters of their craft and their tactics are demonstrably more effective than their email-based counterparts. According to a report by ZeroFOXup to 66 percent of spear phishing attacks on social media sites are opened by their targets.  This compares to a roughly 30 percent success rate of spear phishing emails, based on findings by Verizon.

Facebook has warned of cybercriminals targeting personal accounts in order to steal information that can be used to launch more effective spear phishing attacks. The social network is taking steps to protect users’ accounts from hostile data collection, including more customizable security and privacy features such as two-factor authentication. Facebook has also been more active in encouraging users to adopt these enhanced security features, as seen in the in-app message below.

Facebook

Types of social phishing attacks

 

Fake customer support accounts

The rise of social media has changed the way customers seek support from brands, with many people turning to Twitter or Facebook over traditional customer support channels. Scammers are taking advantage of this by impersonating the support accounts of major brands such as Amazon, PayPal, and Samsung. This tactic, dubbed ‘angler phishing’ for its deepened deception, is rather prevalent. A 2016 study by Proofpoint found that 19% of social media accountsappearing to represent top brands were fake.

To avoid angler phishing, watch out for slight misspellings or variations in account handles. For example, the Twitter handle @Amazon_Help might be used to impersonate the real support account @AmazonHelp. Also, the blue checkmark badges next to account names on Twitter, Facebook, and Instagram let you know those accounts are verified as being authentic.

Spambot comments

Trending content such as Facebook Live streams are often plagued with spammy comments from accounts that are typically part of an intricate botnet. These spam comments contain URLs that link to phishing sites that try to trick you into entering your personal information, such as a username and password to an online account.

It is best to avoid clicking any links on social media from accounts you are unfamiliar with or otherwise can’t trust. You can also take advantage of security software features such as real-time anti-phishing to automatically block fake sites if you accidently visit them.

Dangerous DMs

Yes, phishing happens within Direct Messages, too. This is often seen from the accounts of friends or family that might be compromised. Hacked social media accounts can be used to send phishing links through direct messages, gaming trust and familiarity to fool you. These phishing attacks trick you into visiting malicious websites or downloading file attachments.

For example, a friend’s Twitter account that has been compromised might send you a direct message with a fake link to connect with them on LinkedIn. This link could direct to a phishing site like the one below in order to trick you into giving up your LinkedIn login.

LinkedIn Fishing Example

While this site may appear to look like the real LinkedIn sign-on page, the site URL in the browser address bar reveals it is indeed a fake phishing site. 

Phony promotions & contests 

Fraudsters are also known to impersonate brands on social media in order to advertise nonexistent promotions. Oftentimes, these phishing attacks will coerce victims into giving up their private information in order to redeem some type of discount or enter a contest. Know the common signs of these scams such as low follower counts, poor grammar and spelling, or a form asking you to give up personal information or make a purchase.

The best way to make sure you are interacting with a brand’s official page on social media is to navigate to their social pages directly from the company’s website. This way you can verify the account is legitimate and you can follow the page from there.

 

ransomware

Internet Security : Why is ransomware still so successful?

There’s no end to ransomware in sight. It’s a simple enough attack — install malware, encrypt data/system, and ask for the ransom — so why aren’t we stopping ransomware?  Security vendors are keenly aware of the issue, as well as the attack vectors and methods, but can’t seem to stay a step ahead, causing ransomware to grow form $1 billion in damages in 2016 to an estimated $5 billion in 2017. There are two basic reasons ransomware continues to be a “success” for cyber criminals.

Reason 1: Malware authors are getting better at their craft

Just when we think we’re getting on top of the ransomware problem, our adversaries alter their tactics or produce new techniques to replicate and cause damage and misery. We’ve recently seen ransomware like WannaCry take advantage of unpatched vulnerabilities in the Windows SMB service to propagate around networks, especially those that had SMB open to the internet — A clever technique borrowed from mid-to-late 90s Windows worm malware like Sasser. We’ve also seen malware writers develop new techniques for installing malicious code onto computers via Microsoft Office. While the threat posed by malicious macros in Office documents has existed for a number of years, we’re now seeing the use of a Microsoft protocol called Dynamic Data Exchange (DDE) to run malicious code. Unlike macro-based attacks, the DDE attack doesn’t give the user a pop-up, prompt or warning, so exploitation is far more effective and successful.

The technological advances made by malware authors are significant, but their soft skills, like social engineering, also keep on getting better. Improved writing, more realistic email presentation, and even solid social engineering tactics are all cause for the increase in their success.

And if you’re good at what you do, make it a service and profit on those that have a similar interest, but lack your skills. Thus, “crime-as-a-service” and “malware-as-a-service” now exist, further perpetuating the ransomware problem. The availability and ease of use of these platforms, means anyone can turn to cybercrime and ransomware with little or no coding or malware experience. These platforms and networks are run by organized cybercrime gangs, for vast profits, so we won’t see them going away any time soon,

Reason 2: We’re causing our own problems

Of course, there’s still one large problem many of us have not dealt with yet, and that’s the weaknesses we ourselves cause that become the entry way for the cybercriminals. WannaCry was so successful because it leveraged an unpatched windows vulnerability. NotPetya did the same. So, what are the weaknesses?

  1. A lack of patching – We continue to shoot ourselves in the foot here, because we don’t have solid protection and prevention routines that include the patching of operating systems and applications — especially those leveraged by ransomware authors to gain access.
  2. Not enough (reliable) backups – A lack of validated backups — the primary ransomware recovery tool — can leave us out in the cold and unproductive. It’s a simple equation: if you have backups, you choose recovery over ransom.
  3. User awareness – Users simply don’t understand the threat, the impact, or the cost of a ransomware infection. But, nor should they really — they have a job to do in accounting or sales, not IT security. Even so, putting in solid phishing training and testing can make a material difference.
  4. A lack of least privilege – The more access a user has, the greater scope of infection the ransomware can have. With 71% of end users say they have access to company data they should not be able to see[1], IT has some serious work to do to ensure privileges are locked down.
  5. No layered defense – A single security solution, such as an antivirus, can only do so much to protect the organization. You need solutions like IPS, an email gateway, endpoint protection, and more all working on concert to give ransomware as little a chance of succeeding as possible.

Doing something about the ransomware problem

What should you do to stop ransomware being so successful? Hide? Run away? Unplug the internet? Probably none of those ideas are likely to solve this problem, although out of sight and all that. I mentioned briefly above, the idea of many thin layers of defense, and while ‘defense in depth’ might seem a little old school and became extinct when we lost control of the network perimeter, there are some ideas we can borrow:

  1. Defense in depth – Make sure you have a solid, proactive security stance in place, including: patching, least privilege, user training, etc.
  2. Protect the endpoint – Desktop and endpoint protection solutions can offer some degree of protection, however, keep in mind that malware can adapt itself to these solutions and circumvent them.
  3. Plan for the worst – Ransomware seems to find a way and you need to make sure you can recover when it does. Backups, off-site backups and backups on different media types are essential. Make sure you test their recovery too, as you don’t want to be finding out how to restore a backup in anger. They say you train hard to fight easy. Never has that been more true for IT contingency planning.

Get these three things right, and you’ll be a lot closer to stopping the rain of ransomware from ruining your day, night or weekend.

 


This article was provided by our service partner : Veeam.com

Security : Worst passwords of 2017 : From ‘123456’ to ‘STARWARS’

Using any of the logins on the list would put you ‘at grave risk for identity theft’

The worst passwords of the year have been revealed in a new report.

“123456” tops the list, as it did in 2016, 2015, 2014 and 2013. For the fourth consecutive year, the next entry on the list is “password”. Variations of each of them comprise six of the other 23 entries in the top 25. “12345678”, “qwerty” and “12345”, meanwhile, complete the top five.

“Use of any of the passwords on this list would put users at grave risk for identity theft,” said SplashData, which released the report.

The company says it “estimates that almost 10 per cent of people” have used at least one of this year’s selection of the 25 worst passwords, and “nearly 3 per cent of people” have used the outright worst password, 123456. It adds that the passwords evaluated for the report were mostly held by people in North America and Western Europe.

“These past two years have been particularly devastating for data security, with a number of well publicized hacks, attacks, ransoms, and even extortion attempts. Millions of records have been stolen,” said SplashData.

The 2017 edition of the list was compiled from more than five million passwords that leaked during the year. However, any login details that leaked as a result of the enormous Yahoo email breach and hacks of adult websites were not considered for the report. SplashData recommends using passwords that are at least 12 characters long, comprising a mix of different character types and both upper- and lowercase letters. The company says you should also use a different password for each of your logins. This, however, can cause a completely different set of problems, as it can be tough to remember multiple logins.

You can save yourself some hassle by signing up to a password manager. “Hackers know your tricks, and merely tweaking an easily guessable password does not make it secure,” said SplashData CEO Morgan Slain.

“Our hope is that our Worst Passwords of the Year list will cause people to take steps to protect themselves online.”

The 25 worst passwords of the year are:

  1. 123456 (unchanged from 2016 list)
  2. password (unchanged)
  3. 12345678 (up one place)
  4. qwerty (up two places)
  5. 12345 (down two places)
  6. 123456789 (new entry)
  7. letmein (new entry)
  8. 1234567 (unchanged)
  9. football (down four places)
  10. iloveyou (new entry)
  11. admin (up four places)
  12. welcome (unchanged)
  13. monkey (new entry)
  14. login (down three places)
  15. abc123 (down one place)
  16. starwars (new entry)
  17. 123123 (new entry)
  18. dragon (up one place)
  19. passw0rd (down one place)
  20. master (up one place)
  21. hello (new entry)
  22. freedom (new entry)
  23. whatever (new entry)
  24. qazwsx (new entry)
  25. trustno1 (new entry)
Managed Security Services

Ransomware Variants an MSP Should Watch Out For

We can all agree that ransomware is one of the biggest and most destructive threats managed service providers and their clients have faced in recent years. Currently, there are well over 120 separate ransomware families, and there’s been a 3,500% increase in cyber criminal internet infrastructure for launching attacks since the beginning of 2016. And nearly 90% of MSP report their clients have been hit by ransomware in the last year. But, in spite of these numbers, nearly 70% of MSP still aren’t completely confident their clients’ endpoints are secure against these insidious attacks.

Know Your Enemy

In addition to maintaining up-to-date endpoint security that uses real-time analysis to detect zero-day attacks, it’s important to know your enemy. Cybersecurity provider Webroot recently put together a list of the top 10 nastiest ransomware variants of 2017. You’ve probably heard of the big, newsworthy names that made the list, like WannaCry, NotPetya, and Locky, but here’s a few more MSPs should watch out for.

  1. CrySis
    CrySis attacks by compromising Remote Desktop Protocol (RDP). RDP is a common method for deploying ransomware because criminals can get into admin accounts that have access to an entire organization. First detected in February 2016, CrySis took some time to spread, and really came into its own in 2017.
  2. Nemucod
    This ransomware variant arrives via phishing emails disguised as a shipping invoice. Nemucod downloads malware and encryption components stored from hacked websites, and would have most likely been the worst of the phishing email attacks for the year, had Locky not resurfaced in August.
  3. Jaff
    Like Nemucod and Locky, Jaff uses phishing emails to spread. It also uses similar techniques to other successful ransomware attacks, including Dridex.
  4. Spora
    This ransomware is distributed by legitimate websites that have been compromised with malicious JavaScript code. The sites display a pop-up prompt to visitors, instructing them to update their Chrome browsers to continue viewing the page. But when the unsuspecting user downloads the “Chrome Font Pack”, they get the infection instead.
  5. Cerber
    Cerber also uses phishing and RDP, but unlike some of its colleagues, it distributes ransomware-as-a-service (RaaS). This “service” allows aspiring cybercriminals to use pre-packaged ransomware tools as they choose, while the Cerber author gets a 30% cut of any profits made.
Keeping Your Clients Safe

There are a number of steps an MSP can take to keep clients safe.

  • First, educate your clients. Be sure to teach them how to spot suspicious emails and how to check legitimacy any time an email seems a little off. We also recommend implementing an end user cybersecurity training program.
  • Second, keep applications and plugins up to date, and make sure your clients are using reliable cloud-based antimalware, web filtering, and firewalls.
  • Third, use your operating system to your advantage. Set up Windows® OS policy restrictions, disable auto-run, disable VBS, and filter executables from emails.
  • Fourth, ensure your clients run regular backups, set up offline air gap backups with multiple copies of each file, and maintain up-to-date business continuity measures.

This article was provided by our service partners Webroot & Connectwise.

Internet Security : New Cryptojacking Tactic may be Stealing Your CPU Power

What if cybercriminals could generate money from victims without ever delivering malware to their systems? That’s exactly what a new phenomenon called “cryptojacking” entails, and it’s been gaining momentum since CoinHive first debuted the mining JavaScript a few months ago. The environmental and social impact of this online was significant, the statistic speak for themselves, almost everyone was affected in some way or another.

The intended purpose: whenever a user visits a site that is running this script, the user’s CPU will mine the cryptocurrency Monero for the site owner. Find out the DC Forecasts for the next couple weeks. This isn’t money out of thin air, though. Users are still on the hook for CPU usage, the cost of which shows up in their electric bill. While it might not be a noticeable amount on your bill (consumer CPU mining is very inefficient), the cryptocurrency adds up fast for site owners who have a lot of visitors. CoinHive’s website claims this is an ad-free way for website owners to generate enough income to pay for the servers. All altruistic excuses aside, it’s clear threat actors are abusing the tactic at the victims’ expense.

cryptojacking

In the image above, we can see that visiting this Portuguese clothing website causes my CPU to spike up to 100%, and the browser process will use as much CPU power as it can. If you’re on a brand new computer and not doing anything beyond browsing the web, a spike like this might not even be noticeable. But if you’re using a slower computer, just navigating the site will become very sluggish.

Cybercriminals using vulnerable websites to host malware isn’t new, but injecting sites with JavaScript to mine Monero is. In case you’re wondering why this script uses Monero instead of Bitcoin, it’s because Monero has the best hash rate on consumer CPUs and has a private blockchain ledger that prevents you from tracking transactions. It’s completely anonymous. Criminals will likely trade their Monero for Bitcoin regularly to make the most of this scam.

CoinHive’s JavaScript can be seen in this website’s HTML:

Cryptojacking Javascript

CoinHive maintains that there is no need block their scripts because of “mandatory” opt-ins:

“This miner will only ever run after an explicit opt-in from the user. The miner never starts without this opt-in. We implemented a secure token to enforce this opt-in on our servers. It is not circumventable by any means and we pledge that it will stay this way. The opt-in token is only valid for the current browser session (at max 24 hours) and the current domain. The user will need to opt-in again in the next session or on a different domain. The opt-in notice is hosted on our servers and cannot be changed by website owners. There is no sneaky way to force users into accepting this opt-in.”

For reference, here’s what an opt-in looks like (assuming you ever do see one):

Cryptojacking-Opt-In-Example

 

Why Webroot blocks cryptojacking sites

Unfortunately, criminals seem to have found methods to suppress or circumvent the opt-in—the compromised sites we’ve evaluated have never prompted us to accept these terms. Since CoinHive receives a 30% cut of all mining profits, they may not be too concerned with how their scripts are being used (or abused). This is very similar to the pay-per-install wrappers we saw a few years ago that were allegedly intended for legitimate use with user consent, but were easily abused by cybercriminals. Meanwhile, the authors who originated the wrapper code made money according to the number of installs, so the nature of usage—benign or malicious—wasn’t too important to them.

To protect our users from being exploited without their consent, we at Webroot have chosen to block websites that run these scripts. Webroot will also block pages that use scripts from any CoinHive copycats, such as the nearly identical Crypto-Loot service.

According to https://www.foam.space/, there are a few other ways to block these sites. You can use browser extensions like Adblock Plus and add your own filters (see the complete walkthrough here.) If you’re looking for more advanced control, extensions like uMatrix will allow you to pick and choose which scripts, iframes, and ads you want to block.


This article was provided by our service partner Webroot.com