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Microsoft today released updates to fix a record 141 security vulnerabilities in its Windows operating systems and related software. Once again, Microsoft is patching a zero-day vulnerability in the Microsoft Support Diagnostics Tool (MSDT), a service built into Windows. Redmond also addressed multiple flaws in Exchange Server — including one that was disclosed publicly prior to today — and it is urging organizations that use Exchange for email to update as soon as possible and to enable additional protections.
In June, Microsoft patched a vulnerability in MSDT dubbed “Follina” that had been used in active attacks for at least three months prior. This latest MSDT bug — CVE-2022-34713 — is a remote code execution flaw that requires convincing a target to open a booby-trapped file, such as an Office document. Microsoft this month also issued a different patch for another MSDT flaw, tagged as CVE-2022-35743.
The publicly disclosed Exchange flaw is CVE-2022-30134, which is an information disclosure weakness. Microsoft also released fixes for three other Exchange flaws that rated a “critical” label, meaning they could be exploited remotely to compromise the system and with no help from users. Microsoft says addressing some of the Exchange vulnerabilities fixed this month requires administrators to enable Windows Extended protection on Exchange Servers. See Microsoft’s blog post on the Exchange Server updates for more details.
“If your organization runs local exchange servers, this trio of CVEs warrant an urgent patch,” said Kevin Breen, director of cyber threat research for Immerse Labs. “Exchanges can be treasure troves of information, making them valuable targets for attackers. With CVE-2022-24477, for example, an attacker can gain initial access to a user’s host and could take over the mailboxes for all exchange users, sending and reading emails and documents. For attackers focused on Business Email Compromise this kind of vulnerability can be extremely damaging.”
The other two critical Exchange bugs are tracked as CVE-2022-24516 and CVE-2022-21980. It’s difficult to believe it’s only been a little more than a year since malicious hackers worldwide pounced in a bevy of zero-day Exchange vulnerabilities to remotely compromise the email systems for hundreds of thousands of organizations running Exchange Server locally for email. That lingering catastrophe is reminder enough that critical Exchange bugs deserve immediate attention.
The SANS Internet Storm Center‘s rundown on Patch Tuesday warns that a critical remote code execution bug in the Windows Point-to-Point Protocol (CVE-2022-30133) could become “wormable” — a threat capable of spreading across a network without any user interaction.
“Another critical vulnerability worth mentioning is an elevation of privilege affecting Active Directory Domain Services (CVE-2022-34691),” SANS wrote. “According to the advisory, ‘An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow elevation of privilege to System.’ A system is vulnerable only if Active Directory Certificate Services is running on the domain. The CVSS for this vulnerability is 8.8.”
Breen highlighted a set of four vulnerabilities in Visual Studio that earned Microsoft’s less-dire “important” rating but that nevertheless could be vitally important for the security of developer systems.
“Developers are empowered with access to API keys and deployment pipelines that, if compromised, could be significantly damaging to organizations,” he said. “So it’s no surprise they are often targeted by more advanced attackers. Patches for their tools should not be overlooked. We’re seeing a continued trend of supply-chain compromise too, making it vital that we ensure developers, and their tools, are kept up-to-date with the same rigor we apply to standard updates.”
Greg Wiseman, product manager at Rapid7, pointed to an interesting bug Microsoft patched in Windows Hello, the biometric authentication mechanism for Windows 10. Microsoft notes that the successful exploitation of the weakness requires physical access to the target device, but would allow an attacker to bypass a facial recognition check.
Wiseman said despite the record number of vulnerability fixes from Redmond this month, the numbers are slightly less dire.
“20 CVEs affect their Chromium-based Edge browser and 34 affect Azure Site Recovery (up from 32 CVEs affecting that product last month),” Wiseman wrote. “As usual, OS-level updates will address a lot of these, but note that some extra configuration is required to fully protect Exchange Server this month.”
As it often does on Patch Tuesday, Adobe has also released security updates for many of its products, including Acrobat and Reader, Adobe Commerce and Magento Open Source. More details here.
Please consider backing up your system or at least your important documents and data before applying system updates. And if you run into any problems with these updates, please drop a note about it here in the comments.
If your PC runs on Windows 10, you’re in very good company. The Microsoft operating system is the most widely used OS in the world. Many Windows 10 users have also been upgraded to Windows 11 through a rollout that began in 2021. Microsoft plans to complete the Windows update by mid-2022.
Unfortunately, its success as a widely used operating system makes Windows attractive to hackers. And if malicious software like malware can make a home in Windows, there are a lot of targets. So, this might raise the question of how best to protect your Windows 10 or 11 device.
Should you just use Windows Defender — Microsoft’s free version of antivirus software — or buy additional protection?
Read on to learn what Microsoft Defender covers and how additional virus protection can secure all of your connected devices.
For years, Microsoft has offered anti-malware protection, but the current version provides effective security against viruses. Windows Defender is a free antivirus tool that’s built into the Windows operating system.
While it’s considered one of the best free antivirus software programs, it doesn’t have any extra features that might come with paid security software. If you’re just looking for good antivirus software, though, Windows Defender can get the job done.
If you’re not using third-party antivirus protection, you’ll want to make sure that your Windows Defender antivirus coverage is working on your computer. Here’s how to check:
To make sure your Windows security is running, follow these steps:
With built-in coverage, you may wonder if you should invest in paid antivirus software. The answer is, of course, yes! It can be a good idea to get another antivirus solution because blocking malware and viruses should just be one part of your threat protection.
Today’s cybercriminals are using elaborate ruses to try to access your personal information, such as your bank and credit card numbers. And some of their scams might even target your devices with risky apps or links on social media.
As they always say, it’s better to be safe than sorry! Having another antivirus program can make sure you have real-time protection and access to the latest security features.
There are a lot of antivirus protection programs out there, but they aren’t all created equal. When looking for the best antivirus software for your needs, here are some things to consider for your devices running on Windows 10 or 11.
If you have a Windows PC, use an iPhone, and your tablet runs on Chrome, it helps to have an antivirus app that works across multiple operating systems. The good news is that McAfee Total Protection is compatible with Windows, Mac, iOS, and Android devices, so you can continue enjoying all of your different devices without losing protection.
For greater cybersecurity, antivirus software should defend against a variety of online threats like viruses, spyware, and ransomware. And that’s exactly what you get with McAfee Total Protection. Our antivirus software can also help you avoid phishing attacks, which are fake messages to trick you into providing information or clicking a malicious link. The software will give you a warning when it recognizes a risky link, website, or file.
Functionality is another thing you’ll want to consider when looking for antivirus software. If the program isn’t easy to use to begin with — especially if you want to easily manage multiple devices — what good will it do you?
But you don’t have to worry with McAfee Total Protection, which allows you to connect and manage all of your computers and mobile devices from one single dashboard.
To keep your devices free from online threats like malware, good antivirus software will scan your files for threats. McAfee Total Protection provides 24/7 protection with real-time, on-demand, and scheduled scanning of files and applications.
McAfee Total Protection was developed with an understanding of how cybercriminals operate. Scammers may use a variety of tactics to try to steal your personal information, so our all-in-one protection also includes:
Using Microsoft’s built-in antivirus software can protect your Windows devices from viruses and malware. But to really keep your network and all of your devices secure, it’s good to rely on comprehensive protection like McAfee Total Protection. With services like identity monitoring, safe browsing, and a secure VPN, you can enjoy the internet without worry.
The post Does Windows 10 or 11 Need Antivirus Software? appeared first on McAfee Blog.
Whether you think you might have a virus on your computer or devices, or just want to keep them running smoothly, it’s easy to do a virus scan. How to check for viruses depends on the software and device you have, so we’ll go through everything you need to know to run a scan effectively and keep your computers, phones and tablets in tip-top shape.
First, let’s cover a few of the telltale signs your device might have a virus. Is your computer or device acting sluggish or having a hard time booting up? Have you noticed missing files or a lack of storage space? Have you noticed emails or messages sent from your account that you did not write? Perhaps you’ve noticed changes to your browser homepage or settings? Or maybe, you’re seeing unexpected pop-up windows, or experiencing crashes and other program errors. These are all examples of signs that you may have a virus, but don’t get too worried yet, because many of these issues can be resolved with a virus scan.
Each antivirus program works a little differently, but in general the software will look for known malware that meets a specific set of characteristics. It may also look for variants of these known threats that have a similar code base. Some antivirus software even checks for suspicious behavior. If the software comes across a dangerous program or piece of code, it removes it. In some cases, a dangerous program can be replaced with a clean one from the manufacturer.
The process of checking for viruses depends on the device type and its operating system. Check out these tips to help you scan your computers, phones and tablets.
If you use Windows 10, go into “Settings” and look for the “Updates & Security” tab. From there you can locate a “Scan Now” button.
Of course, many people have invested in more robust antivirus software that has a high accuracy rate and causes less drain on their system resources, such as McAfee Total Protection. To learn how to run a virus scan using your particular antivirus software, search the software’s help menu or look online for instructions.
Mac computers don’t have a built-in antivirus program, so you will have to download security software to do a virus scan. There are some free antivirus applications available online, but we recommend investing in trusted software that can protect you from a variety of threats. Downloading free software and free online virus scans can be risky, since cybercriminals know that this is a good way to spread malware.
Whichever program you choose, follow their step-by-step instructions on how to perform a virus scan, either by searching under “help” or looking it up on their website.
Yes, you can get a virus on your phone or tablet, although they are less common than on computers. However, the wider category of mobile malware is on the rise and your device can get infected if you download a risky app, click on an attachment in a text message, visit a dangerous webpage, or connect to another device that has malware on it.
Fortunately, you can protect your devices with mobile security software. It doesn’t usually come installed, so you will have to download an application and follow the instructions.
Because the Android platform is an open operating system, there are a number of antivirus products for Android devices, that allows you to do a virus scan.
Apple devices are a little different because they have a closed operating system that doesn’t allow third parties to see their code. Although Apple has taken other security precautions to reduce malware risks, such as only allowing the installation of apps from Apple’s official app store, these measures aren’t the same as an antivirus program.
For more robust protection on your Apple devices, you can install mobile security software to protect the private data you have stored on your phone or tablet, such as contacts, photos and messages.
If safeguarding all your computers and devices individually sounds overwhelming, you can opt for a comprehensive security product that protects computers, smartphones and tablets from a central control center, making virus prevention a breeze.
New online threats emerge every day, putting our personal information, money and devices at risk. In the first quarter of 2019 alone McAfee detected 504 new threats per minute, as cybercriminals employed new tactics. That’s why it is essential to stay ahead of these threats by using security software that is constantly monitoring and checking for new known threats, while safeguarding all of your sensitive information. Virus scans are an essential part of this process when it comes to identifying and removing dangerous code.
Most antivirus products are regularly scanning your computer or device in the background, so you will only need to start a manual scan if you notice something suspicious, like crashes or excessive pop-ups. You can also program regular scans on your schedule.
Of course, the best protection is to avoid getting infected in the first place. Here are a few smart tips to sidestep viruses and other malware:
The post How To Do A Virus Scan appeared first on McAfee Blog.
Microsoft today released updates to fix at least 74 separate security problems in its Windows operating systems and related software. This month’s patch batch includes fixes for seven “critical” flaws, as well as a zero-day vulnerability that affects all supported versions of Windows.
By all accounts, the most urgent bug Microsoft addressed this month is CVE-2022-26925, a weakness in a central component of Windows security (the “Local Security Authority” process within Windows). CVE-2022-26925 was publicly disclosed prior to today, and Microsoft says it is now actively being exploited in the wild. The flaw affects Windows 7 through 10 and Windows Server 2008 through 2022.
Greg Wiseman, product manager for Rapid7, said Microsoft has rated this vulnerability as important and assigned it a CVSS (danger) score of 8.1 (10 being the worst), although Microsoft notes that the CVSS score can be as high as 9.8 in certain situations.
“This allows attackers to perform a man-in-the-middle attack to force domain controllers to authenticate to the attacker using NTLM authentication,” Wiseman said. “This is very bad news when used in conjunction with an NTLM relay attack, potentially leading to remote code execution. This bug affects all supported versions of Windows, but Domain Controllers should be patched on a priority basis before updating other servers.”
Wiseman said the most recent time Microsoft patched a similar vulnerability — last August in CVE-2021-36942 — it was also being exploited in the wild under the name “PetitPotam.”
“CVE-2021-36942 was so bad it made CISA’s catalog of Known Exploited Vulnerabilities,” Wiseman said.
Seven of the flaws fixed today earned Microsoft’s most-dire “critical” label, which it assigns to vulnerabilities that can be exploited by malware or miscreants to remotely compromise a vulnerable Windows system without any help from the user.
Among those is CVE-2022-26937, which carries a CVSS score of 9.8, and affects services using the Windows Network File System (NFS). Trend Micro’s Zero Day Initiative notes that this bug could allow remote, unauthenticated attackers to execute code in the context of the Network File System (NFS) service on affected systems.
“NFS isn’t on by default, but it’s prevalent in environment where Windows systems are mixed with other OSes such as Linux or Unix,” ZDI’s Dustin Childs wrote. “If this describes your environment, you should definitely test and deploy this patch quickly.”
Once again, this month’s Patch Tuesday is sponsored by Windows Print Spooler, a core Windows service that keeps spooling out the security hits. May’s patches include four fixes for Print Spooler, including two information disclosure and two elevation of privilege flaws.
“All of the flaws are rated as important, and two of the three are considered more likely to be exploited,” said Satnam Narang, staff research engineer at Tenable. “Windows Print Spooler continues to remain a valuable target for attackers since PrintNightmare was disclosed nearly a year ago. Elevation of Privilege flaws in particular should be carefully prioritized, as we’ve seen ransomware groups like Conti favor them as part of its playbook.”
Other Windows components that received patches this month include .NET and Visual Studio, Microsoft Edge (Chromium-based), Microsoft Exchange Server, Office, Windows Hyper-V, Windows Authentication Methods, BitLocker, Remote Desktop Client, and Windows Point-to-Point Tunneling Protocol.
Also today, Adobe issued five security bulletins to address at least 18 flaws in Adobe CloudFusion, Framemaker, InCopy, InDesign, and Adobe Character Animator. Adobe said it is not aware of any exploits in the wild for any of the issues addressed in today’s updates.
For a more granular look at the patches released by Microsoft today and indexed by severity and other metrics, check out the always-useful Patch Tuesday roundup from the SANS Internet Storm Center. And it’s not a bad idea to hold off updating for a few days until Microsoft works out any kinks in the updates: AskWoody.com usually has the skinny on any patches that may be causing problems for Windows users.
As always, please consider backing up your system or at least your important documents and data before applying system updates. And if you run into any problems with these patches, please drop a note about it here in the comments.
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Working with a slow PC is always annoying and frustrating. Enduring sudden frozen windows and stuttered animations can make you want to throw the machine out the window.
Take a deep breath, and consider these 8 tips on how to fix a slow PC running Windows.
Why is my Windows Running Slow?
First, here is a general analysis on why your Windows PC is running slow:
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1. Restart your Computer
Many users are accustomed to keeping their computers running for several weeks. Their PC is either running or sleeping with the processes saved all the time. This means the running programs are occupying and filling up their RAM continuously, which can lead to the PC running extremely slowly. In addition, the computer might suffer from some bugs, which trigger programs to eat up much more RAM than they should. To avoid these troubles, restart your PC by clicking on the Windows button, selecting the ‘Power’ button, and choosing the ‘Restart’ button at least once a week.
A small hint: make sure you have saved your ongoing work before you shut down your computer.
2. Adjust setting modes
This is a very simple but often overlooked way to boost your PC’s performance. However, it sacrifices a bit of standby time. When you are not worrying about the state of charge and just pursuing maximum efficiency, you can consider opening Advanced System Setting in Windows for this trick.
Enter “Control Panel” in the Cortana search box in the taskbar. In the pop-up window, click “System,” and then click “Advanced system settings” in the left window, as shown below:
Click “Settings” in the performance bar, as shown in the following figure:
In the pop-up window, you can see that there are four setting modes, set “Adjust for best performance,” and then click OK, as shown in the following figure:
3. Disable Startup Programs
Startup items are programs that the system will run in the foreground or background once your computer is ON. When you download and install software, the “start-up” is usually a default choice. Therefore, if the software is not commonly used and you do not need to use it every time you start your PC, you can remove the check because it can slow down system speed. If you forgot to remove the check when installing the application, you can also make changes using the Task Manager.
To check and manage your startup programs, open the Task Manager (Ctrl + Alt + Del), then switch to the ‘Startup’ tab. You’ll also see the “Startup impact” of each startup program — either Low, Medium, or High. If you see “Not measured,” that’s because it was recently added and Windows hasn’t had a chance to observe the program’s behavior yet.
To prevent a program from launching on startup just right-click and choose “Disable.”
If you are not sure whether you can safely disable some programs, you can search the program online and learn about its function. If you are a little worried, you can download a PC cleaner app, which can automatically identify and classify these items and help you delete the unnecessary ones in batches. Remember to choose those apps without pop-up advertisements and hidden fees.
In addition, you can see the first tab named “Processes” in the picture above. Too many programs running simultaneously can slow down the system speed as well. Some programs may continue running in the background even after you have closed them. Under the “Processes” tab, you can select them and click ‘End task’ at the bottom right. However, be careful about this action because you might close some important processes needed to run Windows.
4. Turn off windows tips and tricks
When searching ways to speed up your PC online, your PC will ask you to disable the “Visual Effects” feature as they use up your PC’s performance. However, this operation needs you to balance the operating speed and the appearance of your PC, and even adjust those settings many times to achieve satisfying visual effects. Instead, here is an item that you can change without a hitch.
When you use a windows PC, Windows will always pay attention to what you are doing and provide tips on what you may want to do with your computer. You may find these tips unhelpful and even feel offended by its constant virtual viewing over your shoulders.
If you want to speed up your PC, you can ask Windows to stop giving you advice. To do this, click the START button, select the Settings icon, and then go to Systems > Notification & actions. Scroll down to the notifications section and uncheck the box labeled “Get tips, tricks, and suggestions as you use Windows.”
5. Run Disk Cleanup
Do not let that “Disk space is almost full” message pop up and stop your work. Too many junk files, useless big files and duplicate files usually cause insufficient disk space. To save gigabytes of disk space for things you really need, you should clean them regularly to free up space.
Here are steps on how to use the built-in Windows utility to run disk cleanup:
Press “WINDOWS + R” and enter the cleanmgr command with parameters:
cleanmgr /sageset
In the Disk Cleanup Settings window, you can find items you can clean.
Note that this operation is only the setting operation of the checked item. It has not been actually cleaned. After clicking OK, you need to press “WINDOWS + R” and enter “cleanmgr /sagerun:99”, and then it can execute specific cleanup operations.
You can also turn ON the storage sense function to remove unnecessary files automatically.
Enter Settings > System > Storage, and then turn ON the Storage sense function to allow Windows to clean up temporary files automatically. It can be set to run automatically every day, every fortnight, every month, or every two months.
Definitely, some cleanup apps can help you do the work more quickly and accurately. Besides useless files, they can even retrieve and delete similar photos. You can evaluate and download them according to your own needs.
6. Clean out your Registry
Registry is an important database, which is used to store the setting information of system and application program running in Windows. As early as Windows 3.0 introduced OLE technology, the registry has appeared. Windows NT was the first operating system to make extensive use of the registry at the system level. However, since the beginning of the Microsoft Windows 95 operating system, the registry has been a critical database that will continue to play a role in the subsequent operating systems.
The command to open the registry is:
Regedit or regedit.exe, regedt32 or regedt32.exe
Under normal circumstances, you can click the operation in the START menu (WINDOWS + R), and then enter regedit or regedit.exe and click OK to open the registry editor of Windows operating system.
The registry is a very messy thing. For example, when a program is uninstalled, the program’s settings are not always cleared in the registry. So over time, it will be filled with various outdated settings. This may lead to poor performance of your PC system.
A word of caution: Editing the registry manually is risky. A mistake can lead to system-level interruptions. Therefore, to clean the registry, it is recommended that a professional registry cleaner is used.
7. Malware and Virus Infection
As we all know, malware and viruses will infect the computer and make it run more sluggishly. There are a large number of antivirus apps in the marketplace. Trend Micro offers several options to consider.
8. Disable third-party services
If you installed a lot of software on your PC, the system may become chaotic and some unexpected problems might occur. For example, several security applications are running at the same time can create conflicts that make the system misbehave. You can disable all third-party software services and only keep the system itself. The system status will also be called “Clean Boot.”
Here is how to perform a clean boot of Windows:
Press “WINDOWS + R” and type “msconfig”, then click OK. Open System Configuration, go to the Services tab and put a tick in the “Hide all Microsoft services” box at the bottom left before choosing the items and hitting Disable all.
We hope the listed solutions can help you boost your PC performance conveniently. Manually checking what is wrong with your Windows can be time-consuming and painstaking. When those irritating system messages pop up and interfere with your work, it is time to turn to a trusted all-in-one system care utility like Cleaner One. By employing this productive worker, you can retrieve and delete unnecessary items, have less clutter, make your computer more efficient, and optimize your Windows OS with just a few clicks. Why not give it a go?
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