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A malicious website or malicious ad can trigger an exploit for the IE zero-day bug, opening the door for data theft and code execution, new analysis notes.

DoppelPaymer ransomware gang claims credit for Kia’s outage, demands $20 million in double-extortion attack.

A malicious adware-distributing application specifically targets Apple’s new M1 SoC, used in its newest-generation MacBook Air, MacBook Pro and Mac mini devices.

Apps like eHarmony and MeetMe are affected by a flaw in the Agora toolkit that went unpatched for eight months, researchers discovered.

Virginia is about to get a data privacy law, modeled on California’s law.

The 20th Annual Workshop on the Economics of Information Security (WEIS 2021) will be held online in June. We just published the call for papers.

On February 17^th, 2021, McAfee disclosed findings based on a 10-month long disclosure process with major video conferencing vendor Agora, Inc.  As we disclosed the findings to Agora in April 2020, this lengthy disclosure timeline represents a nonstandard process for McAfee but was a joint agreement with the vendor to allow sufficient time for the development and release of a secure SDK. The release of the SDK mitigating the vulnerability took place on December 17^th, 2020. Given the implications of snooping and spying on video and audio calls, we felt it was important to provide Agora the extended disclosure time. The affected users of Agora include popular voice and video messaging apps, with one notable application being the popular new iOS app known as Clubhouse.

 

Clubhouse Application Screenshot

Clubhouse has made headlines recently as one of the newest players in the social networking sphere, rising in popularity after a series of high-profile users including Elon Musk, Kanye West and influencers in various geographies posted about the platform. Released in April of 2020, Clubhouse quickly carved out a niche in Chinese social media as the platform to discuss sensitive social and political topics – perhaps aided by its invite-only approach to membership – and the spotlight shined on it by these key players further propelled it into viral status early this year. Perhaps unsurprisingly, the application was blocked for use in China on February 8^th, 2021.

Last week, Stanford Internet Observatory (SIO) released research regarding the popular Clubhouse app’s use of Agora real-time engagement software and suggested that Agora could have provided the Chinese government access to Clubhouse user information and communications.  While the details of Stanford’s disclosure focus on the audio SDK compared to our work on the video SDK, the functionality and flaw are similar to our recent disclosure, CVE-2020-25605.  This includes the plaintext transmission of app ID, channel ID and token – credentials necessary to join either audio or video calls. We can confirm that Clubhouse updated to the most recent version of the Agora SDK on February 16^th – just a day prior to our public disclosure.

Despite the recent noise surrounding Clubhouse, the reality is that this application is just one of many applications that leverage the Agora SDK. Among others, we investigated the social apps eHarmony, Skout, and MeetMe, along with several widely-used healthcare apps, some of which have a significantly larger user base. For example, MeetGroup (comprised of several apps) reported approximately 18 million monthly users compared to Clubhouse, which had approximately 600k total users as of December 2020.

We felt it was important to highlight these data points and are continuing to investigate these applications as well as monitor any potential instances of malicious actors exploiting this vulnerability. Given that Agora has released an updated SDK that fixes the call setup issues, vulnerable applications should have already switched to the secure calling SDK, thus protecting the sensitive audio and video call data as many claim to do. With that in mind, we decided to check back in with some of the Agora-based apps we previously investigated to confirm whether they had updated to the patched version. We were surprised to see many, as of February 18, 2020, still had not:

App Name	Installs	App Version	App Version Date	Updated Agora SDK
MeetMe	50,000,000+	14.24.4.2910	2/9/2021	Yes
LOVOO	50,000,000+	93.0	2/15/2021	No
Plenty of Fish	50,000,000+	4.36.0.1500755	2/5/2021	No
SKOUT	50,000,000+	6.32.0	2/3/2021	Yes
Tagged	10,000,000+	9.32.0	12/29/2020	No
GROWLr	1,000,000+	16.1.1	2/11/2021	No
eharmony	5,000,000+	8.16.2	2/5/2021	Yes
Clubhouse	2,000,000+	0.1.2.8	2/16/2021	Yes
Practo	5,000,000+	4.93	1/26/2021	No

With the context around censorship and basic privacy concerns, it will be interesting to see if these and many other apps using the vulnerable SDK update quickly, or even ever, and what kind of lasting effects these types of findings have on users’ trust and confidence in social media platforms.

For more on McAfee ATR’s research into the Agora SDK, please see our technical research blog.

For information on how users can protect themselves when using such apps, please see our consumer safety tips blog.

The post Beyond Clubhouse: Vulnerable Agora SDKs Still in Widespread Use appeared first on McAfee Blogs.

Use of “domain age” is a feature being promoted by various firewall and web security vendors as a method to protect users and systems from accessing malicious internet destinations. The concept is to use domain age as a generic traffic filtering parameter. The thought is that hosts associated with newly registered domains should be either completely blocked, isolated, or treated with high suspicion. This blog will describe what domain age is, how domains are created and registered, domain age value, and how domain age can be used most effectively as a compliment to other web security tools.

Domain Age Feature Definition

The sites and domains of the internet are constantly changing and evolving. In the first quarter of 2020 an average of over 40,000 domains were registered per day. If the domain of a target host is known that domain has a registration date available for lookup from various sources. Domain age is a simple calculation of the time between initial domain registration and the current date.

A domain age feature is designed for use in policy control, where an administrator can set a minimum domain age that should be necessary to allow access to a given internet destination. The idea is that since domains are so easy and cheap to establish, new domains should be treated with great care, if not blocked outright. Unfortunately, with most protocols and implementations, domain age policy selection is a binary decision to allow or block. This is not very useful when the ultimate destinations are hosts, subdomains, and destination addresses that can be rapidly activated, changed, and deactivated without ever changing the domain age. As a result, binary security decisions based solely on domain name or domain age will naturally result in both false positives and false negatives that are detrimental to security, user experience, and productivity.

Domain Registration

IANA (Internet Assigned Numbers Authority) is the department of ICANN (Internet Corporation for Assigned Names and Numbers) responsible for managing the registries of, protocol parameters, domain names, IP addresses, and Autonomous System Numbers.

IANA manages the DNS root zone and TLDs (Top Level Domains like .com, .org, .edu, etc.) and registrars are responsible for working with the Internet Registry and IANA to register individual subdomains within the top-level domains.

Details of the registration process and definitions can be found on the IANA site (iana.org). Additional details can be found here: https://whois.icann.org/en/domain-name-registration-process This location includes the following statement:

“In some cases, a person or organization who does not wish to have their information listed in WHOIS may contract with a proxy service provider to register domain names on their behalf. In this case, the service provider is the domain name registrant, not the end customer.”

This means that service providers, and end customers are free to register a domain once and reuse, reassign or sell that domain without changing the registration date or changing any other registration information. Registrars can and do auction addresses creating a vast market for domain “squatters and trolls.” An attacker can cheaply purchase an established domain of a defunct business or register a completely new legitimate sounding domain and leave it unused for weeks, months or years.  For example, as of this writing airnigeria.com is up for sale on godaddy.com for just $65 USD. The domain airnigeria.com was originally registered in 2003. IANA and the registrars have no responsibility or control over usage of domains.

Determining Domain Age

Domain age is determined from the domain record in the Internet Registry managed by the registry operator for a TLD (Top Level Domain). Ultimately the registrar is responsible for the establishment of a domain registration and updating related data. The record in the registry will have an original creation date but that date doesn’t change unless the registration for a specific domain expires and the domain name is re-registered. Because of this, domain age is an extremely inaccurate measure of when an individual destination became active.

And what if only the destination IP address is known at the time of the filtering decision? This could be the case for filtering the first packet sent to a specific destination (TCP SYN or first UDP packet of some other network or transport level protocol). One way to get the domain for the destination would be a reverse DNS lookup, but the domain for the host may not match the domain that was originally submitted for resolution, so what value is domain age there?

For example, www.mcafee.com can currently resolve to 172.224.15.98 which reverse resolves to a172-224-15-98.deploy.static.akamaitechnologies.com. While the mcafee.com domain was registered on 1992-08-05, akamaitechnologies.com was registered on 1998-08-18. Both are long established domains, but just because this destination, in the well-established mcafee.com domain, is hosted on the well-established akamaitechnologies.com domain, this doesn’t provide any indication of when the www.mcafee.com, or 172.224.15.98 destination became active, or the risk of communicating with that IP address. Domain age becomes even less useful when we consider destinations hosted in the public cloud (IaaS and SaaS) using the providers’ domains.

Obtaining the wrong domain and therefore wrong domain age from reverse lookup could be somewhat mitigated by tracking the DNS queries of the client and attempting to map those domains back to the requested destination IP. However, doing this would also be dependent on having full visibility into all DNS requests from the client, and assumes that the destination IP address was determined using standard DNS or by the system providing the domain age filtering.

Challenges with Using Domain Age as a Generic Filter Criteria

Even if the correct domain for the transmission can be established, and the domain age can be accurately retrieved, there are still issues that should be considered.

Registrars are free to maintain, change, and reassign established domains to any customer, and resellers can do the same. This greatly diminishes the usefulness of domain age as a stand-alone filtering parameter because a malicious actor can easily acquire an existing well-established domain with a neutral or even positive reputation. A malicious actor can also register a new domain long before it is put into use as a command and control or attack domain.

Legitimate and perfectly safe sites are constantly being registered and established in many cases within days or even hours of being put into use. When using domain age as filter criteria there will always be a tradeoff between false positive and false negative rates.

It should also be noted that domain age provides little value relative to when an individual hostname record was created within a domain. Well established domains can have an infinite number of subdomains and individual hosts within those domains, and there is no way to accurately determine hostname age or even when the name was associated with an active IP. All that could possibly be determined is that the destination hostname is part of a domain that was registered at some earlier date.

The bottom line is that domain age is not nearly granular or substantive enough to make a useful filtering decision on its own. However, domain age could provide some limited security value in the complete absence of more specific criteria, provided the false positive rate and false negative rate associated with the selected recency threshold can be tolerated. Domain age can provide supplemental value when combined with other more definitive filter criteria for example protocol, content type, host category, host reputation, host first seen, frequency of host access, web service attributes, and others.

Domain Age in the Context of HTTP/S and Proxy Based Filtering

More specific criteria are always available when the HTTP protocol is in use. HTTP and HTTPS filtering is most effectively handled via explicit or transparent proxy. If the protocol is followed (enforced by the device or service), information cannot be transferred, and a compromise or attack cannot be initiated, until after TCP connection establishment.

Given that the traffic is being proxied, and HTTPS can be decrypted, accurate Fully Qualified Domain Name (FQDNs) for the host, URL path, and URL parameters can be identified and verified by the proxy for use in filtering decisions. The ability to lookup information on the FQDN, full URL path, and URL parameters provides much more valuable information relative to the history, risk level, and usage of the specific site, destination, and service independent of the domain or the domain’s date of registration Such contextual data can be further enhanced when the proxy associates the request with a specific service and its data security attributes (such as type of service, intellectual property ownership, breach history, etc.).

Industry leading web proxy vendors maintain extensive and comprehensive databases of the most frequently used sites, domains, applications, services, and URLs. The McAfee Global Threat Intelligence and Cloud Registry databases associate sites, domains, and URLs with geolocation, category, service, service attributes, applications, data risk reputations, threat reputations and more. As a side benefit, lack of an entry in the databases for a specific host, domain, service, or URL is an extremely strong, and much more accurate, indication that the site is newly established or little used and therefore should not be inherently trusted. Such sites should be treated with caution and blocked or coached or isolated (the latter two options are uniquely available with proxied HTTP/S) based on that criteria alone, regardless of domain age.

McAfee’s Unified Cloud Edge provides all of the above functionality and includes remote browser isolation (RBI) for uncategorized, unverified, and otherwise risky sites. This virtually eliminates the risks of browsers or other applications accessing uncategorized sites, without adding the complications of false positives and false negatives from a domain age filter.

When using HTTP/S, hostname age, or even first and/or last hostname seen date could provide additional value, but domain age is pretty much useless when the FQDN and more specific site or service related information is available. Best practice is to block, isolate, or at a minimum, coach unverified sites and services without regard to domain age. Allowing unverified sites or services based on domain age adds significant risk of false negatives (risky sites and services being allowed simply because the domain was not recently registered). Generically blocking sites and services based on domain age alone would lead to over-blocking sites that have established good reputations and should not be blocked.

Conclusion

Domain age can be somewhat useful for supplementing filter decisions in situations where no other more accurate and specific information is available about the destination of a network packet. When considering use of domain age for HTTP/S filtering, it is an extremely poor substitute for a more comprehensive threat intelligence and service database. If the decision is made to deviate from best practice and allow HTTP/S connections to unverified sites, without isolation, then domain age can provide limited supplemental value by blocking unverified sites that are in newly registered domains. This comes at the expense of a false sense of security and much greater risk of false negatives when compared to the best practice of using comprehensive web threat intelligence, performing thorough request and response analysis, and simply blocking, isolating, or coaching unverified sites.

 

The post Domain Age as an Internet Filter Criteria appeared first on McAfee Blogs.

We’ve all come to a realization that we don’t go anywhere without our phone. It’s a utility that helps us navigate our daily lives: directions, schedules, shopping, discounts, banking, and so on. And as our reliance on our smartphone continues to grow, it’s no wonder that hackers have taken notice. This time, it’s another case of an app gone rogue.

Innocent Scanner Turned Malware Super-Spreader

With over 10 million downloads, the Barcode Scanner app provided users with a basic QR code reader and barcode generator, useful for things like making purchases and redeeming discounts.  Then, most likely in a recent update, the app began to deliver ad-producing malware onto users’ phones – with the malware being traced back to the Android Barcode Scanner app. While Barcode Scanner was previously benign, it is believed that a hacker injected malicious code into the app before the latest update, pushing malware onto Android devices. Once installed, the malware hijacks your default web browsers and redirects you to random advertisements.

In a typical case of malvertising, or malicious advertising, fraudsters submit infected graphic or text ads to legitimate advertisement networks, which often can’t distinguish harmful ads from trustworthy ones. Under the guise of everyday pop-ups, these malicious ads push fake browser updates, free utilities, or antivirus programs in the hope that unsuspecting users will click. Depending on what kind of programs the malicious ads succeed in downloading, hackers might steal your data, encrypt or delete your information, or hijack your computer functions – as is the case with the Barcode Scanner’s malware.

While Google has taken down the Barcode Scanner from its store, it has not been deleted from infected devices. So, if you have the app on your phone, it’s time to uninstall it from your device manually…ASAP.

How to Stay Protected

We all need to reflect on the state of our digital health, especially as hackers continue to target us through the device we use most – our phones. To help protect your data, family, and friends, check out these security tactics to keep sneaky mobile threats out:

1. Do your research

While some malicious apps do make it through the app store screening process, most attack downloads appear to stem from social media, fake ads, and other unofficial app sources. Before downloading an app to your device, do some quick research about the origin and developer.

 2. Read app reviews with a critical eye

Reviews and rankings are still a suitable method of determining whether an app is legitimate. However, watch out for assessments that reuse repetitive or straightforward phrases, as this could be a sign of a fraudulent review.

3. Update, update, update

Developers are actively working to identify and address security issues. Frequently update your operating systems and apps so that they have the latest fixes and security protections.

4. Use a VPN

A virtual private network, or VPN, allows you to send and receive data across a public network, but it encrypts your information so others can’t read it. This can prevent hackers from spying on your internet activity, therefore protecting your privacy.

5. Defend your devices with security software

Holistic security solutions across all devices continues to be a strong defensive measure to protect your data and privacy from online threats like malware.

Stay Updated

To stay updated on all things McAfee and on top of the latest consumer and mobile security threats, follow @McAfee_Home  on Twitter, subscribe to our email, listen to our podcast Hackable?, and ‘Like’ us on Facebook.

 

 

 

 

The post Millions Affected by Malware Attributed to Android Barcode-Scanning App  appeared first on McAfee Blogs.

How 2020 Has Shaped The Way We Live Our Lives

I’ve had such a busy morning! I’ve hunted down my favourite foundation, bought a puzzle mat, stocked up on special dog food for our naughty new puppy, ordered the groceries, made a few appointments and chatted with several friends. And guess what? I haven’t left my study – or changed out of my pyjamas!! Ssshhh!! Because it’s all happened online…

Are our 2020 Habits Here to Stay?

Of course, some of us embraced the benefits of the online world long before 2020 but the Pandemic forced almost everyone to replace our in-person activities and routines with online ones. New research from McAfee in their 2021 Consumer Security Mindset Report shows that 72% of Aussies made changes in their online activities last year out of convenience which makes complete sense!

But what’s so interesting is that now we have these super handy new online routines in place – we aren’t that keen to give them up! McAfee’s report shows that 76% of Aussies are planning on continuing with online banking, 59% of us want to keep connecting with friends and family online and 55% of us remain totally committed to online shopping! Hear, hear, I say! I am absolutely staying that course too!!

But What About The Risks?

There’s no doubt that there is a lot of upside to managing our lives online but unfortunately there is also a downside – increased risk! The more time spent online, the greater the chance that we will be exposed to potential risks and threats such as phishing attacks, entering details into malicious websites or even becoming a victim of fraud.

McAfee’s research shows that we are aware of the risks of being online. In fact, 66% of us are concerned about the potential dangers of living our lives online with losing control of our financial data top of the list for the majority of us. And almost 2/3 (65%) of us are also worried about having our social media accounts hacked.

But pandemic life has meant that we are now a lot more comfortable with sharing information online. Whether it’s paperless transaction records, text and email notifications, opting to stay logged in or auto-populating forms with our credit card, this level of online sharing does make life so convenient but it can be a risky business! Why, I hear you ask? Because these conveniences usually only work when you share multiple pieces of your contact details. And the more you share, the greater your chance of being hacked or compromised. But the report was very clear – if we can make our online life more seamless then we are only too happy to share our key contact information! Oh dear!!

‘Why Would Hackers Want My Data?’

In addition to confessing that they don’t always take the necessary security precautions, Aussie consumers in McAfee’s report also admitted that they haven’t thought about why hackers might want their data. I don’t know how many people tell me that they don’t need to really bother with a lot of online precautions because they live a pretty boring life and don’t spend that much time online.

But this is a very dangerous way to think. Your online data is like a pot of gold to hackers. Not only can they use it to possibly steal your identity and try to empty your bank accounts but they can also on-sell it for a profit. But the majority of Aussies don’t stop to consider this with the research showing that 64% of Aussies have never considered just how valuable their online data is worth.

Hackers are ALWAYS on the lookout for new ‘up-to-date’ ways to exploit others for money. Don’t forget how quick they were to conjure up scams around COVID in early 2020 – it was just a matter of weeks before Aussies received phishing emails and malicious text messages with the aim of extracting personal information from vulnerable consumers.

But, encouragingly, 85% of Aussies said they would be far more proactive about managing their data if it could be traded as a currency.

How To Protect Your Digital Life

The good news is that there are ways to secure your online life and minimise the risk of being hacked. Here are my top tips:

1.Always Use Multi-Factor Authentication

Yes, it might take a minute or 2 more, but using multi-factor authentication is an easy way to add an additional layer of security to protect your personal data and information. Commit to using it wherever it is offered!

2.Use a VPN

If you live your life out & about like I do then you’ll be very tempted to use Wi-Fi. Using public Wi-Fi to conduct transactions, particularly financial ones is a big no-no! It takes keen hackers minimal effort to set up a fraudulent wi-fi service which could easily fool a busy person into connecting. Using a Virtual Private Network (or VPN) like McAfee® Safe Connect, is the best way of ensuring everything you share over Wi-Fi is safe and secure.

3.Sign Up For A Site Advisor

Browsing the internet with a tool like the McAfee WebAdvisor is a great way of ensuring dangerous malware is blocked if you click on a malicious link in a phishing email. You’ll have real peace of mind knowing you can manage your online life while someone looks out for you!

With 4 kids, 3 pets, 2 jobs – I know I could never get to the bottom of my ‘to-do’ lists without managing the bulk of it online. I often think I should send the internet an e-card at Christmas!! Of course, I understand why corners are cut and precautions are overlooked when we all feel so stretched for time. But just think about how much more time it would take if you were hacked and had to spend hours on the phone to your bank or if you had to reconfigure all your online accounts and social media platforms!!

So, you know what you need to do! Stay safe online everyone!

 

The post How 2020 Has Shaped The Way We Live Our Lives appeared first on McAfee Blogs.