What is DNSSEC and Why Is It Important?

If you’re like most companies, you probably leave your DNS resolution up to your ISP. But as employees bypass the VPN, and even more organizations adopt direct internet access, it’s more than likely that you have a DNS blind spot. So what steps can you take to ensure your visibility remains free and clear?

One simple and easy thing you can start doing right away is to mine your DNS data. Each time a browser contacts a domain name, it has to contact the DNS server first. Since DNS requests precede the IP connection, DNS resolvers log requested domains regardless of the connection’s protocol or port. That’s an information gold mine! Just by monitoring DNS requests and subsequent IP connections you will eliminate the blind spot and easily gain better accuracy and detection of compromised systems and improve your security visibility and network protection.

But what about those pesky cache poisoning attacks, also known as DNS spoofing?

DNS cache poisoning attacks locate and then exploit vulnerabilities that exist in the DNS, in order to draw organic traffic away from a legitimate server toward a fake one.This type of attack is dangerous because the client an be redirected, and since the attack is on the DNS server, it will impact a very large number of users.

Back in the early nineties, the era of the world-wide-web, Sony Discmans and beepers (we’ve come a long way kids!), the Internet Engineering Task Force, or  IETF started thinking about ways to make DNS more secure. The task force proposed ways to harden DNS and in 2005, Domain Name System Security Extensions, aka DNSSEC, was formally introduced.

DNS Security Extensions, better known as DNSSEC, is a technology that was developed to, among other things, protect against [cache poisoning] attacks by digitally ‘signing’ data so you can be assured [the DNS answer] is valid. DNSSEC uses cryptographic signatures similar to using GPG to sign an email; it proves both the validity of the answer and the identity of the signer. Special records are published in the DNS allowing recursive resolvers or clients to validate signatures. There is no central certificate authority, instead parent zones provide certificate hash information in the delegation allowing for proof of validity.

Cisco Umbrella now supports DNSSEC by performing validation on queries sent from Umbrella resolvers to upstream authorities. Customers can have the confidence that Cisco Umbrella is protecting their organization from cache poisoning attacks, without having to perform validation locally.

Cisco Umbrella delivers the best, most reliable, and fastest internet experience to every single one of our more than 100 million users. We are the leading provider of network security and DNS services, enabling the world to connect to the internet with confidence on any device.

Get the details on how Cisco Umbrella supports DNSSEC.

 

Source :
https://umbrella.cisco.com/blog/2020/01/28/what-is-dnssec-and-why-is-it-important/

Emotet Malware Now Hacks Nearby Wi-Fi Networks to Infect New Victims

Emotet, the notorious trojan behind a number of botnet-driven spam campaigns and ransomware attacks, has found a new attack vector: using already infected devices to identify new victims that are connected to nearby Wi-Fi networks.

According to researchers at Binary Defense, the newly discovered Emotet sample leverages a "Wi-Fi spreader" module to scan Wi-Fi networks, and then attempts to infect devices that are connected to them.

The cybersecurity firm said the Wi-Fi spreader has a timestamp of April 16, 2018, indicating the spreading behavior has been running "unnoticed" for close to two years until it was detected for the first time last month.

The development marks an escalation of Emotet's capabilities, as networks in close physical proximity to the original victim are now susceptible to infection.

How Does Emotet's Wi-Fi Spreader Module Work?

The updated version of the malware works by leveraging an already compromised host to list all the nearby Wi-Fi networks. To do so, it makes use of the wlanAPI interface to extract the SSID, signal strength, the authentication method (WPA, WPA2, or WEP), and mode of encryption used to secure passwords.

On obtaining the information for each network this way, the worm attempts to connect to the networks by performing a brute-force attack using passwords obtained from one of two internal password lists. Provided the connection fails, it moves to the next password in the list. It's not immediately clear how this list of passwords was put together.

But if the operation succeeds, the malware connects the compromised system on the newly-accessed network and begins enumerating all non-hidden shares. It then carries out a second round of brute-force attack to guess the usernames and passwords of all users connected to the network resource.

After having successfully brute-forced users and their passwords, the worm moves to the next phase by installing malicious payloads — called "service.exe" — on the newly infected remote systems. To cloak its behavior, the payload is installed as a Windows Defender System Service (WinDefService).

In addition to communicating with a command-and-control (C2) server, the service acts as a dropper and executes the Emotet binary on the infected host.

The fact that Emotet can jump from one Wi-Fi network to the other puts onus on companies to secure their networks with strong passwords to prevent unauthorized access. The malware can also be detected by actively monitoring processes running from temporary folders and user profile application data folders.

Emotet: From Banking Trojan to Malware Loader

Emotet, which was first identified in 2014, has morphed from its original roots as a banking Trojan to a "Swiss Army knife" that can serve as a downloader, information stealer, and spambot depending on how it's deployed.

Over the years, it has also been an effective delivery mechanism for ransomware. Lake City's IT network was crippled last June after an employee inadvertently opened a suspicious email that downloaded the Emotet Trojan, which in turn downloaded TrickBot trojan and Ryuk ransomware.

Although Emotet-driven campaigns largely disappeared throughout the summer of 2019, it made a comeback in September via "geographically-targeted emails with local-language lures and brands, often financial in theme, and using malicious document attachments or links to similar documents, which, when users enabled macros, installed Emotet."

"With this newly discovered loader-type used by Emotet, a new threat vector is introduced to Emotet's capabilities," Binary Defense researchers concluded. "Emotet can use this loader-type to spread through nearby wireless networks if the networks use insecure passwords."

Coronavirus Affecting Business as Remote Workforces Expand Beyond Expected Capacity

The novel coronavirus epidemic is a major global health concern. To help prevent the spread of the new virus, organizations, businesses and enterprises are protecting their workforce and allowing employees to work remotely. This practice helps limit individual contact with large groups or crowds (e.g., restaurants, offices, transit) where viruses can easily spread.

As such, ‘stay at home’ is a common phrase in many health-conscious regions this week. According to the BBC, the city of Suzhou said businesses would remain closed until Feb 8, if not longer. As of 2018, Suzhou had a population of more than 10.7 million people.

On Jan. 30, the World Health Organization labeled the outbreak as a global health emergency. In response, the U.S. Department of issued a Level 4 travel advisory to China (do not travel).

Precautions like these are causing unexpected increases in mobile workers; many organizations don’t have enough virtual private network (VPN) licenses to accommodate the increase of users. This is a serious risk as employees will either not have access to business resources or, worse, they will do so via non-secure connections.

Organizations and enterprises in affected areas should review their business continuity plans. The National Law Review published a useful primer for employers and organizations managing workforces susceptible to coronavirus outbreaks. In addition, leverage SonicWall’s ‘5 Core Practices to Ensure Business Continuity.”

What is the coronavirus?

Coronavirus (2019-nCoV) is a respiratory illness first identified in Wuhan, China, but cases have since been reported in the U.S., Canada, Australia, Germany, France, Thailand, Japan, Hong Kong, and nine other countries. In an effort to contain the virus, the Chinese authorities have suspended air and rail travel in the area around Wuhan.

According to Centers for Disease Control and Prevention (CDC), early patients in the outbreak in China “reportedly had some link to a large seafood and animal market, suggesting animal-to-person spread. However, a growing number of patients reportedly have not had exposure to animal markets, indicating person-to-person spread is occurring. At this time, it’s unclear how easily or sustainably this virus is spreading between people.”

The latest situation summary updates are available via the CDC: 2019 Novel Coronavirus, Wuhan, China.

Change Product Key Windows Server 2019 – Windows 10 1809

When installing Windows Server 2019, as with previous versions of Windows, you are prompted to enter the product key during installation, however if you are waiting for licensing to arrive, you can skip this and continue building your server. Once the licensing arrives, you can enter the product key from the Settings app, but in my case, clicking the Change Product Key button resulted in absolutely nothing. The window did not pop up, no error in the event logs, nothing at all. In this article, I will show you how to enter your product key manually using command line utilities, then activating using the same utility.

  1. Click Start and type CMD in the Start Search menu
  2. Right Click and choose Run as administrator
  3. To remove any existing product key (in case you used a trial key), enter and run the command slmgr.vbs /upk .
  4. Clear the product key from registry by running slmgr.vbs /cpky
  5. To enter your new product key, use the command: slmgr.vbs /ipk xxxxx-xxxxx-xxxxx-xxxxx where the x’s are your actual product key.
  6. Lastly, activate Windows by entering the command slmgr.vbs /ato
  7. Windows is now activated.

From my research, this appears to be a fairly common issue. Some users reported completely reloading Windows and entering the key from the start to resolve the issue, but if you have already configured the server or workstation, that’s not really an option. After running the above commands, my servers were activated and running normally. So far, this is my only hiccup with Server 2019.

 

Source :
https://technogecko.net/guides/change-product-key-does-nothing-windows-server-2019-windows-10-1809/

Smarter Cybersecurity: How SecOps Can Simplify Security Management, Oversight & Real-Time Decision-Making

Organizations continue to be alarmed by how easily cybercriminals can circumvent security defenses as malware, ransomware, cryptojacking and phishing attacks make headline news.

In addition, security operations lack visibility and awareness of unsafe network and user activities, network traffic irregularities, and unusual data access and utilization. This exacerbates the situation and creates a dangerous condition where security teams are too late or unable to:

  • Respond to security alerts or incidents at the speed and accuracy they need
  • Conduct thorough and effective investigations
  • Find answers fast enough to take corrective actions

Through close engagements with our top channel partners and key customers, SonicWall learned and understood these challenges first-hand. And through that collaboration, SonicWall developed and introduced the SonicWall Capture Security Center and two powerful risk management tools ­— Analytics and Risk Meters — to help customers solve these difficult problems.

Govern, comply and manage risk

The Capture Security Center is grounded on three core objectives:

‘Govern Centrally’ focuses on improving operational efficiencies and reducing overhead, while ‘Compliance’ and ‘Risk Management’ concentrate on the business value. These core objectives are interdependent as each leverages a common set of information, processes and technologies that help SecOps establish and deliver a strong, federated security defense and response services at the core of their security program.

Work faster and smarter — with less effort

Capture Security Center is a cloud solution organizations use to avoid operational overhead associated with software and hardware installation, upgrades and maintenance. This solution provides SecOps teams secure single sign-on (SSO) access to license, provision and manage their entire SonicWall security suite, including networkwirelessendpointemailmobile and cloud security products and services.

Think of it as a high-productivity tool that provides authorized users access to all available security services based on their role and access rules. The command console is assessible from any location and from any web-enabled PC. Once signed in, users are automatically granted access to everything — and are able do everything securely — using one cloud app.

The different tiles (shown below) are exactly what you’ll see when you log in to your Capture Security Center account. Users can easily navigate between tenants presented on the left panel and, on the right panel, manage any licensed cloud services registered to that tenant.

Available in January 2020, Capture Security Center version 1.8 adds capabilities for security teams to:

Study risks and threats in real time with real-world data

SonicWall Risk Meters is a threat monitoring and risk-rating tool we’ve integrated into the Capture Security Center. The tool is available to all SonicWall Capture Security Center customers at no additional cost.

Risk Meters, shown below, gives a direct line of sight into the cyberattacks affecting your security posture. Threat vectors are represented by colored arrows while threat types are shown as icons.

Clicking on an icon pops up an information panel that provides a detailed description of the threat. A tenant drop-down list allows you to view threat metrics at the tenant level. Visibility into the attacks targeting various defense layers helps guide your response to where immediate defensive actions are needed for a specific environment.

The first defense layer captures attacks blocked by the firewallsCapture Advanced Threat Protection (ATP) sandbox and WAF.

The second defense layer reveals attacks targeting your SaaS appliances and email environments.

The third defense layer shows threats attacking your users’ devices. The DEFCON and Shield Level ratings displayed at the top-right corner provide the computed risk scores based on existing defense layers. Scores are adjusted as you toggle to activate or deactivate available services.

Taking this a step further, Risk Meters gains several important improvements in Capture Security Center 1.8. A new control panel presents users with customization functionalities to run analysis on a variety of threat data.

This new feature allows for experimenting “what-if” simulations at a more granular level to see how the risk score dynamically changes when sub-components of certain layer or multiple layers are added or removed.

Up until this release, risk scores were calculated based solely on security services from SonicWall. To give a more accurate account of customer security environments, CSC now factors in all security controls when calculating the risk scores, including non-SonicWall services.

The Risk Meters Control Panel allows users to configure and weigh third-party security controls into the calculated risk scores. Users can now review trends of different threat types and then compare them against regional and global averages to help identify which threat vectors to focus on and where to prepare their defenses.

Transforming threat data into decisions, decisions into actions

In conjunction with Capture Security Center 1.8, SonicWall releases Analytics 2.5 to introduce a new user-based analytics and reporting function to helps security teams visualize and conduct investigations into users’ actions and application and data usage.

Security teams can monitor or drill-down into the security data for more details about the user network traffic, access and connections, and what applications are being used and websites are frequently visited.

Also, security teams can investigate attacks that target a certain group of users and bandwidth costs associated with resource utilization to determine if policy-tuning or added configurations are needed to reduce their risk profile or optimize network performance.


About the SonicWall Capture Security Center

Capture Security Center is a scalable cloud security management system that’s a built-in and ready-to-use component of your SonicWall product or service. It features single-sign-on and ‘single-pane-of-glass’ management. It integrates the functionality of the Capture Cloud Platform to deliver robust security management, analytics and real-time threat intelligence for your entire portfolio of network, email, endpoint, mobile and cloud security resources.

Capture Security Center delivers a valuable team resource to help organizations control assets and defend entire networks from cyberattacks. Unify and synchronize updates and support, monitor security risks and fulfill regulatory compliance — all with greater clarity, precision and speed.

source :
https://blog.sonicwall.com/en-us/2019/12/smarter-cybersecurity-how-secops-can-simplify-security-management/

Amazon Echo Hacked at Pwn2Own Tokyo 2019 and Ransomware Attacks Hit Spanish Companies

Welcome to our weekly roundup, where we share what you need to know about the cybersecurity news and events that happened over the past few days. This week, learn about a ransomware that is attacking Spanish companies and how nearly 50 adware apps were found on Google Play. Also, read about how an Amazon Echo was hacked on the first day of Pwn2Own Tokyo 2019.

Read on:

Facebook Portal Survives Pwn2Own Hacking Contest, Amazon Echo Got Hacked

Amazon Echo speakers, Samsung and Sony smart TVs, the Xiaomi Mi9 phone, and Netgear and TP-Link routers were all hacked on the first day of ZDI’s Pwn2Own Tokyo 2019 hacking contest.

New Exploit Kit Capesand Reuses Old and New Public Exploits and Tools, Blockchain Ruse

In October 2019, Trend Micro discovered a new exploit kit named Capesand, which attempts to exploit recent vulnerabilities in Adobe Flash and Microsoft Internet Explorer. Based on our investigation, it also exploits a 2015 vulnerability for Internet Explorer.

Inside the Microsoft Team Tracking the World’s Most Dangerous Hackers

Microsoft’s latest win over cloud rival Amazon for the lucrative military contact means that an intelligence-gathering apparatus among the most important in the world is based in the woods outside Seattle. Now in this corner of Washington state, dozens of engineers and intelligence analysts are watching and stopping the government-sponsored hackers proliferating around the world.

Halloween Exploits Scare: BlueKeep, Chrome’s Zero-Days in the Wild

On October 31, Chrome posted that a stable channel security update for Windows, Mac, and Linux versions of Chrome will be rolled out in order to fix two use-after-free flaws in audio and PDFium. The U.S. Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency (CISA) has released a statement advising users and administrators to apply the updates.

A Stranger’s TV Went on Spending Spree with My Amazon Account – and Web Giant Did Nothing About it for Months

After a fraudster exploited a bizarre weakness in Amazon’s handling of customer devices to hijack an account and go on spending sprees with their bank cards, it was discovered that it is possible to add a non-Amazon device to your Amazon customer account and it won’t show up in the list of gadgets associated with the profile.

Ransomware Attacks Hit Spanish Companies, Paralyzes Government Services in Canadian Territory of Nunavut

A ransomware campaign recently hit companies in Spain, including Cadena Sociedad Española de Radiodifusión (SER), the country’s largest radio network. In another part of the globe, threat actors managed to infect government systems with ransomware in the Canadian territory of Nunavut.

Amazon’s Ring Video Doorbell Lets Attackers Steal Your Wi-Fi Password

Security researchers at Bitdefender have discovered a high-severity security vulnerability in Amazon’s Ring Video Doorbell Pro devices that could allow nearby attackers to steal your WiFi password and launch a variety of cyberattacks using MitM against other devices connected to the same network.

Unpatched Remote Code Execution rConfig Flaws Could Affect Millions of Servers and Network Devices

Details on the proof-of-concept (PoC) exploit for two unpatched, critical remote code execution (RCE) vulnerabilities in the network configuration management utility rConfig have recently been disclosed. At least one of the flaws could allow remote compromise of servers and connected network devices.

California DMV Data Breach Exposed Thousands of Drivers’ Information, Agency Says

A data breach at the California Department of Motor Vehicles may have exposed some drivers’ Social Security number information to seven government entities, according to the DMV. The breach affects about 3,200 individuals over at least the last four years, the agency said in a statement.

49 Disguised Adware Apps with Optimized Evasion Features Found on Google Play

Trend Micro recently found 49 new adware apps on Google Play, disguised as games and stylized cameras. These apps are no longer live, but before they were taken down by Google, the total number of downloads was more than 3 million. This Trend Micro blog discusses solutions and security recommendations for protecting against adware apps.

CVE-2019-2114: Patched Android Bug That Allows Possible Installation of Malicious Apps

An Android bug that could allow threat actors to bypass devices’ security mechanisms was discovered by Nightwatch Cybersecurity. Successful abuse of the bug can allow threat actors to transfer a malicious application to a nearby Near Field Communication (NFC)-enabled device via the Android Beam. The bug affects Android version 8 (Oreo) or higher.


Surprised by the devices that were hacked on the first day of Pwn2Own Tokyo 2019? Share your thoughts in the comments below or follow me on Twitter to continue the conversation: @JonLClay.

Source :
https://blog.trendmicro.com/this-week-in-security-news-amazon-echo-hacked-at-pwn2own-tokyo-2019-and-ransomware-attacks-hit-spanish-companies/

WSUS synchronization fails with SoapException

WSUS synchronization fails with SoapException

Applies to: WSUS - All versionsWindows Server 2016Windows Server 2012 R2Windows Server 2012 Less

Symptoms


Windows Server Update Services (WSUS) synchronization fails, and you receive the following error message:

Additionally, an error message that resembles the following is logged in the WSUS log file (%ProgramFiles%\Update Services\LogFiles\SoftwareDistribution.log) on the WSUS server:

Cause


This issue occurs if the WSUS servers are configured to use the old synchronization endpoint, https://fe2.update.microsoft.com/v6. This endpoint was fully decommissioned and is no longer reachable after July 8, 2019.

Resolution


To fix the issue, change the synchronization endpoint in WSUS configuration to https://sws.update.microsoft.com.

To do this, follow these steps on the topmost WSUS server that connects directly to Microsoft Update, such as the root WSUS server in a WSUS hierarchy:

  1. Close all WSUS consoles.
  2. At an elevated PowerShell command prompt, run the following PowerShell scripts.

    Note Don't run the scripts on a WSUS server that’s not the topmost server. If the server isn’t connected to the Internet, synchronization may fail.
    For WSUS version 3.x:

    [void][reflection.assembly]::LoadWithPartialName("Microsoft.UpdateServices.Administration")
    $server = [Microsoft.UpdateServices.Administration.AdminProxy]::GetUpdateServer()
    $config = $server.GetConfiguration()
    # Check current settings before you change them
    $config.MUUrl
    $config.RedirectorChangeNumber
    # Update the settings if MUUrl is https://fe2.update.microsoft.com/v6
    $config.MUUrl = "https://sws.update.microsoft.com"
    $config.RedirectorChangeNumber = 4002
    $config.Save();
    iisreset
    Restart-Service *Wsus* -v

    Note WSUS servers that are running Windows Server 2008 (without the latest update) or earlier versions may be using the https://update.microsoft.com/v6 or https://www.update.microsoft.com synchronization endpoints. Because these versions of Windows don’t support SHA256 certificate authentication, use the following settings in the PowerShell scripts:

    $config.MUUrl = " https://sws1.update.microsoft.com"
    $config.RedirectorChangeNumber = 3011
    For WSUS on Windows Server 2012 and later versions:

    $server = Get-WsusServer
    $config = $server.GetConfiguration()
    # Check current settings before you change them
    $config.MUUrl
    $config.RedirectorChangeNumber
    # Update the settings if MUUrl is https://fe2.update.microsoft.com/v6
    $config.MUUrl = "https://sws.update.microsoft.com"
    $config.RedirectorChangeNumber = 4002
    $config.Save()
    iisreset
    Restart-Service *Wsus* -v

  3. Verify that WSUS synchronization succeeds.

More Information


Offline install of .NET Framework 3.5 in Windows 10 using DISM

You can use the Deployment Image Servicing and Management (DISM) command-line tool to create a modified image to deploy .NET Framework 3.5.

 Important

For images that will support more than one language, you must add .NET Framework 3.5 binaries before adding any language packs. This order ensures that .NET Framework 3.5 language resources are installed correctly in the reference image and available to users and applications.

Using DISM with Internet connectivity

Requirements

For an online reference image that can access Windows Update

  1. Open a command prompt with administrator user rights (Run as Administrator) in Windows 8 or Windows Server 2012.
  2. To Install .NET Framework 3.5 feature files from Windows Update, use the following command:
    DISM /Online /Enable-Feature /FeatureName:NetFx3 /All 
    

    Use /All to enable all parent features of the specified feature. For more information on DISM arguments, see Enable or Disable Windows Features Using DISM.

  3. On Windows 8 PCs, after installation .NET Framework 3.5 is displayed as enabled in Turn Windows features on or off in Control Panel. For Windows Server 2012 systems, feature installation state can be viewed in Server Manager.

For an offline reference image

  1. Run the following DISM command (image mounted to the c:\test\offline folder and the installation media in the D:\drive) to install .NET 3.5:
    DISM /Image:C:\test\offline /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs
    

    Use /All to enable all parent features of the specified feature.

    Use /LimitAccess to prevent DISM from contacting Windows Update/WSUS.

    Use /Source to specify the location of the files that are needed to restore the feature.

    To use DISM from an installation of the Windows ADK, locate the Windows ADK servicing folder and navigate to this directory. By default, DISM is installed at C:\Program Files (x86)\Windows Kits\8.0\Assessment and Deployment Kit\Deployment Tools\. You can install DISM and other deployment and imaging tools, such as Windows System Image Manager (Windows SIM), on another supported operating system from the Windows ADK. For information about DISM-supported platforms, see DISM Supported Platforms.

  2. Run the following command to look up the status of .NET Framework 3.5 (offline image mounted to c:\test\offline):
    DISM /Image:c:\test\offline /Get-Features /Format:Table
    

    A status of Enable Pending indicates that the image must be brought online to complete the installation.

Using DISM with no Internet connectivity

You can use DISM to add .NET Framework 3.5 and provide access to the \sources\SxS folder on the installation media to an installation of Windows that is not connected to the Internet.

 Warning

If you're not relying on Windows Update as the source for installing the .NET Framework 3.5, make sure to use sources from the same corresponding Windows operating system version. Using a source path that doesn't correspond to the same version of Windows won't prevent a mismatched version of .NET Framework 3.5 from being installed. This can cause the system to be in an unsupported and unserviceable state.

Requirements

  • Windows 8, Windows Server 2012, or the Windows ADK tools.
  • Installation media
  • Administrator user rights. The current user must be a member of the local Administrators group to add or remove Windows features.

Steps

  1. Open a command prompt with administrator user rights (Run as Administrator).
  2. To install .NET Framework 3.5 from installation media located on the D: drive, use the following command:
    DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:d:\sources\sxs
    

    Use /All to enable all parent features of the specified feature.

    Use /LimitAccess to prevent DISM from contacting Windows Update/WSUS.

    Use /Source to specify the location of the files that are needed to restore the feature.

    For more information on DISM arguments, see Enable or Disable Windows Features Using DISM.

On Windows 8 PCs, after installation, .NET Framework 3.5 is displayed as enabled in Turn Windows features on or off in Control Panel.

 

Source:
https://docs.microsoft.com/en-us/windows-hardware/manufacture/desktop/deploy-net-framework-35-by-using-deployment-image-servicing-and-management--dism

Full Download Offline installer:

Direct link to the .Net-3.5-Full-Setup

http://download.microsoft.com/download/6/0/f/60fc5854-3cb8-4892-b6db-bd4f42510f28/dotnetfx35.exe

Direct link to the .Net-3.5-SP1-Full-Setup

http://download.microsoft.com/download/2/0/e/20e90413-712f-438c-988e-fdaa79a8ac3d/dotnetfx35.exe

Windows Server 2008 End of Support: Are you Prepared?

On July 14th, 2015, Microsoft’s widely deployed Windows Server 2003 reached end of life after nearly 12 years of support. For millions of enterprise servers, this meant the end of security updates, leaving the door open to serious security risks. Now, we are fast approaching the end of life of another server operating system – Windows Server 2008 and Server 2008 R2, which will soon reach end of support on January 14, 2020.

Nevertheless, many enterprises still rely on Windows Server 2008 for core business functions such as Directory Server, File Server, DNS Server, and Email Server. Organizations depend on these workloads for critical business applications and to support their internal services like Active Directory, File Sharing, and hosting internal websites.

What does this mean for you?

End of support for an operating system like Windows Server 2008 introduces major challenges for organizations who are running their workloads on the platform. While a small number may be ready to fully migrate to a new system or to the cloud, the reality is that most organizations aren’t able to migrate this quickly due to time, budgetary, or technical constraints. Looking back at Windows Server 2003, even nine months after the official EOS, 42% of organizations indicated they would still be using Windows Server 2003 for 6 months or more, while the remaining 58% were still in the process of migrating off of Windows Server 2003 (Osterman Research, April 2016). The same is likely to occur with the Server 2008 EOS, meaning many critical applications will continue to reside on Windows Server 2008 for the next few years, despite the greatly increased security risks.

What are the risks?

The end of support means organizations must prepare to deal with missing security updates, compliance issues, defending against malware, as well as other non-security bugs. You will no longer receive patches for security issues, or notifications of new vulnerabilities affecting your systems. With constant discovery of new vulnerabilities and exploits – 1,450 0days disclosed by the ZDI in 2018 alone – it’s all but guaranteed that we will see additions to the more than 1300+ vulnerabilities faced by Windows Server 2008. The lack of notifications to help monitor and measure the risk associated with new vulnerabilities can leave a large security gap.

This was the case for many organizations in the wake of the 2017 global WannaCry ransomware attack, which affected over 230,000 systems worldwide, specifically leveraging the EternalBlue exploit present in older Windows operating systems. While Microsoft did provide a patch for this, many weren’t able to apply the patches in time due to the difficulty involved in patching older systems.

What can security and IT teams do?

The most obvious solution is to migrate to a newer platform, whether that’s on-premise or using a cloud infrastructure-as-a-service offering such as AWS, Azure, or Google Cloud.

However, we know many organizations will either delay migration or leave a portion of their workloads running in a Windows Server 2008 environment for the foreseeable future. Hackers are aware of this behavior, and often view out-of-support servers as an easy target for attacks. Security teams need to assess the risk involved with leaving company data on those servers, and whether or not the data is secure by itself. If not, you need to ensure you have the right protection in place to detect and stop attacks and meet compliance on your Windows Server 2008 environment.

How can Trend Micro help?

Trend Micro Deep Security delivers powerful, automated protection that can be used to secure applications and workloads across new and end of support systems. Deep Security’s capabilities include host-based intrusion prevention, which will automatically shield workloads from new vulnerabilities, applying an immediate ‘virtual patch’ to secure the system until an official patch is rolled out – or in the case of EOS systems – for the foreseeable future.

Deep Security also helps monitor for system changes with real-time integrity monitoring and application control, and will secure your workloads with anti-malware, powered by the Trend Micro Smart Protection Network’s global threat intelligence. Deep Security’s broad platform and infrastructure support allows you to seamlessly deploy security across your physical, virtualized, cloud, and containerized workloads, and protecting your end of life systems throughout and beyond your migration.

Learn how easy it is to deploy virtual patching to secure your enterprise and address patching issues.

 

Source
https://blog.trendmicro.com/windows-server-2008-end-of-support-are-you-prepared/

Dropbox Uninstall via Batch Script

Dropbox Removal via Batch Script (works for SCCM or other management systems)

I recently ran into a security issue at work where we had a number of users installing and using Dropbox on their machines. Well this is an issue becuase they can take company files and upload them. So I was assigned the task of removing Dropbox and blocking it. Blocking it was simple enough but removing it not so much. My first thought was that I would use SCCM. However, when I went to look for a way to uninstall off multiple machines at once I found this was not supported. So I created a batch file that will perform the removal. Now I will say it is a little sloppy as it leaves behind the icon and shortcuts and I am still currntly looking for a way to remove those too but for now the concern is taken care of as this removes and prevents users from using Dropbox. Feel free to comment any ways I can inprove on this. I would love to hear it and anything we come up with together will also be submitted to the Dropbox community.

You should download the Offline Installer.exe from Dropbox and create an application out of it but set the uninstall program field to reference the "UninstallDropbox.bat"

Then when you deploy set it to Action:Uninstall Purpose:Required

 

Removal:

I have attached the script

 

Detection Method:

File

C:\Program Files (x86)\Dropbox\

Client

The File System Setting Must Exist on the Target System to Indicate Pressence of the Application

 

OR

 

Registry

HKLM

SOFTWARE\Classes\Dropbox.Gdoc

<Check> Use (Default) Registry key value for detection

This registry setting must exist on the target system to indicate pressence of the application

 

Platform verified
Windows 10Yes
Windows Server 2012No
Windows Server 2012 R2No
Windows Server 2008 R2No
Windows Server 2008No
Windows Server 2003No
Windows Server 2016No
Windows 8Yes
Windows 7No
Windows VistaNo
Windows XPNo
Windows 2000No

Source:
https://gallery.technet.microsoft.com/Dropbox-Removal-via-SCCM-063fdd08#content