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New Threat Advisory: TrickBot (Warnings/Recommendations)

TrickBot is up to its tricks again. Once cyber experts get a handle on it, TrickBot releases new modules that advance its capabilities. Here’s what you need to know to protect your organization from TrickBot.

Trickbot

Don’t Get Tricked By TrickBot

TrickBot is up to its tricks again. Once cyber experts get a handle on it, TrickBot releases new modules that advance its capabilities. Here’s what you need to know to protect your organization from TrickBot.

What Is TrickBot?

The Multi-State Information Sharing and Analysis Center (MS-ISAC) recently released a security primer on TrickBot. Originally developed in 2016 as a Windows-based banking Trojan, TrickBot has recently advanced its capabilities.

TrickBot is a modular banking trojan that targets user financial information and acts as a vehicle for other malware. It uses Man-in-the-Browser attacks to steal financial information such as login credentials for online banking sessions. (The majority of financial institutions consider Man In The Browser attacks as the greatest threat to online banking.)

Malware developers are continuously releasing new modules and versions of TrickBot— And they’ve done this once again.

How Is TrickBot Distributed?

TrickBot is disseminated via malspam campaigns. Malspam is a combination of malware and spam. It’s usually delivered through phishing or spear-phishing emails. Its goal is to exploit computers for financial gain.

These malspam campaigns send unsolicited emails that direct users to download malware from malicious websites or trick the user into opening malware through an attachment.

TrickBot is also dropped as a secondary payload by other malware such as Emotet. Some of TrickBot’s modules abuse the Server Message Block (SMB) Protocol to spread the malware laterally across a network. (SMB is an application-layer network protocol that facilitates network communication while providing shared access to client files, printers and serial ports.)

The developers behind TrickBot have continue to add more features via modules to this potent trojan virus. It can download new modules that allow it to evolve if left unchecked.

How Does The TrickBot Malspam Campaign Work?

The malspam campaigns that deliver TrickBot use third-party branding looks familiar to you and your staff such as invoices from accounting and financial firms. The emails typically include an attachment, such as a Microsoft Word or Excel document. If you open the attachment, it will execute and run a script to download the TrickBot malware.

And, TrickBot is really tricky. It runs checks to ensure that it isn’t put in a sandboxed (quarantined) environment. Then it attempts to disable your antivirus programs like Microsoft’s Windows Defender.

And even worse, TrickBot redeploys itself in the “%AppData%” folder and creates a scheduled task that provides persistence. Persistence is the continuance of the effect after its cause is removed. So, even after you remove TrickBot, it can still create problems.

What Happens If Your Network Gets Infected With TrickBot?

TrickBot’s modules steal banking information, perform system/network reconnaissance, harvest credentials and can propagate throughout your network.

TrickBot:

  • Will harvest your system information so that the attacker knows what’s running on your network.
  • Compares all files on your disk against a list of file extensions.
  • Collects more system information and maps out your network.
  • Harvests browser data such as cookies and browser configurations.
  • Steals credentials and configuration data from domain controllers.
  • Auto fills data, history, and other information from browsers as well as software applications.
  • Accesses saved Microsoft Outlook credentials by querying several registry keys.
  • Force-enables authentication and scrapes credentials.
  • Uses these credentials to spread TrickBot laterally across your networks.

What’s New With TrickBot?

In November 2018, a module was developed and added that gave TrickBot the ability to steal credentials from popular applications such as Filezilla, Microsoft Outlook, and WinSCP.

In January 2019, three new applications were targeted for credential grabbing: VNC, Putty, and RDP.

In addition, it can also steal credentials and artifacts from multiple web browsers (Google Chrome/Mozilla Firefox/Internet Explorer/Microsoft Edge) including your browsing history, cookies, autofills, and HTTP Posts.

How Can You Protect Your Organization From TrickBot?

We recommend that you contact us and arrange for the following to protect against the TrickBot malware:

  • Implement filters at the email gateway to filter out emails with known malspam indicators such as known malicious subject lines, and block suspicious IP addresses at the firewall.
  • Use managed antivirus programs on clients and servers, with automatic updates of signatures and software. Off-the-shelf antivirus isn’t enough.
  • Arrange for vulnerability scans to detect TrickBot or other malware threats that are hiding in your IT systems.
  • Apply appropriate patches and updates immediately after they are released.
  • Provide Security Awareness Training for your users. Regular training will ensure that they can recognize social engineering/phishing attempts, and refrain from opening attachments from unverified senders.
  • Help you employ a Password Management solution so your usernames and passwords aren’t disclosed to unsolicited requests.
  • Deploy a managed Anti-Spam/Malware Solution with the latest signature and detection rules.
  • Review security logs for indicators of TrickBot. If any are found, we can isolate the host and begin investigation and remediation procedures.
  • Make sure you adhere to the principle of least privilege, ensuring that users have the minimum level of access required to accomplish their duties. We’ll also limit administrative credentials to designated administrators.
  • Implement Domain-Based Message Authentication, Reporting & Conformance (DMARC). This is a validation system that minimizes spam emails by detecting email spoofing using Domain Name System (DNS) records and digital signatures.
  • If you don’t have a policy regarding suspicious emails, we can help you create one and specify that all suspicious emails should be reported to security and/or IT departments.
  • And more…

Don’t let TrickBot use its tricks to steal your confidential data. Contact us for comprehensive IT Security Analysis and Remediation to keep TrickBot out of your network.

New Threat Advisory: TrickBot (Warnings/Recommendations) Read More »

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Severe Ransomware Attack Hits Global Firm

Ransomware Breach

Norsk Hydro just got hit with a major ransomware attack that took down their entire worldwide network. It happened this morning, Tuesday, March 19, 2019, and we wanted to share this with you.

They experienced widespread system outages. This has been such a disaster that their aluminum production plants are now operating manually. All of their 35,000 employees worldwide have been affected.

For details view this 18-minute briefing from Norsk Hydro.

Feel free to contact us if you have any questions.

Severe Ransomware Attack Hits Global Firm Read More »

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Windows 7 Support Is Ending

Windows 7 Updates 

Did you know? Microsoft is ending support for Windows 7 in January 2020. Beginning this April, Microsoft will start displaying pop-ups on all Windows 7 computers alerting the users that their support for Windows 7 will be ending.

Don’t be alarmed.  Microsoft also did the same thing with Windows XP before shutting down their support for the Windows XP Operating System.

Read More

InfiNet Solutions is in the process of discussing upgrade options with every one of our clients and local companies. We’d like to schedule time with you to discuss your options. Feel free to connect with us by calling (402) 895--5777 or sending an email to [email protected].

Windows 7 Support Is Ending Read More »

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Microsoft Accounts Targeted For Months, Hackers Serve A Security Reminder

Microsoft Outlook Security Breach

Microsoft began notifying Outlook.com users of a 2019 security breach that occurred between January 1st and March 28th. Hackers were unintentionally given unauthorized access to some accounts, where they were then able to view subject lines, email addresses, and folder names. While no login details—including passwords—were directly accessed as part of this breach, Microsoft did warn users to reset their passwords.

Although the hackers could not view the actual content in the bodies of emails nor download attachments, this incident still represents a major—and disturbing—security incident. This breach serves as a reminder to every business to tighten up its security measures and protect its assets.

Use multi-factor authentication

Do not leave this as an optional measure for your employees; require it. Multi-factor authentication uses more than one form of identity confirmation—this is the “multi-factor”—to prove the identity of the person attempting to access a particular platform—this is the “authentication.”

Depending on where in the product the Microsoft breach happened, multi-factor authentication could even have possibly prevented or limited the breach. In general, this authentication process adds a strong layer of security. Hackers don’t usually have both the password and the PIN, secret questions, or other ability to verify their identity.

When vetting which type of authentication to implement—if you have this option—consider using the one that is easiest for employees to have on hand, but hardest for others to get a hold of. Trying to make this relatively convenient for your employees will make it easier for them to comply, which will keep your business more secure. Multi-factor authentication is a measure that should go hand-in-hand with training your employees to use strong passwords.

Account for all devices—including mobile—in your security processes

Very few companies still limit employee access to business assets strictly to desktops at work. There is a growing trend of employees being able to work remotely, even if it is not full-time. A recent study showed that as many as 70% of employees work remotely at least once a week. Whether working from home, a rented office space, or on-the-road, they are using their devices to log in from a distance, well beyond the secured confines of your office. This figure was accounting for full-time employees; contractors only increase the number of remote workers further.

The security processes implemented at your company needs to account for how all of your employees are accessing company resources. Email access on mobile devices is one of the most common ways in which employees take their work on-the-go, and so it’s a strong starting point for building out these protocols. Because confidential company information is being accessed on these devices via networks over which companies have no control, it is critical that both the email servers as well as the devices being used have robust security systems in place.

While new improvements continue to roll out to tackle these issues, solutions that work across all devices are the norm. Security software, as well as encryption tools, can help protect data regardless of the device, particularly when combined with encouraging employees to log-in via secure VPN networks. Cloud options for data storage are offered by providers with a menu of security options; it’s worth walking through your needs and investing in top-quality solutions.

Document your security processes

With all of the work that goes into developing security processes, even more needs to be carried out to maintain their implementation and ensure that they remain up-to-date with new tech trends and emerging risks.

This is a vast and complex undertaking. All existing assets must be brought onto any updated infrastructure. Employees must be set-up for and onboarded to the security procedures, and checkpoints must be established so that their compliance may be monitored. Systems must be monitored for any breaches, as well as smoothly updated across all users and data to accommodate any new vulnerabilities that arose since the previous update. Different components, whether hardware (including different devices, such as mobile) or software, may experience issues with any updates. New members of the internal information technology must be introduced to the systems while existing members must stay abreast of any new developments; even team members working simultaneously on the same project must address potential communications issues.

Thorough documentation of processes helps achieve this by providing an objective record of the systems in place. This can be used for onboarding; for internal audits; for evaluating alternatives or potential improvements; and even for reviewing the source of vulnerabilities and providing accountability should an issue arise. This sort of record-keeping is an essential component of transparency in company policy and helps enforce quality control on internal processes. Of course, it must also be protected with the highest measure of security since it arguably contains “the keys to the castle.” Decentralizing its storage and scattering protected, encrypted components of it across multiple storage solutions can help protect company assets from the sort of large-scale breach that could otherwise bring your data assets to their knees.

And so, the large-scale Microsoft breach serves as a reminder that active vigilance must always be maintained over internet security, without relying entirely on one single individual, provider, or service. No single entity can be trusted to be entirely safe when major players like Microsoft are clearly vulnerable, despite the teams of brilliant engineers hired to implement safeguards and the millions of dollars invested in diverse preventive measures. Every business needs to be proactive in protecting itself through rigorous internal standards, ranging from staff training through the implementation of mandatory security precautions, to minimize the risk of vulnerabilities being exposed and exploited. Factoring in every employees’ data paths and employing multiple layers of overlapping security efforts at every step of the way—and documenting these processes for easy internal accountability and refinement—are critical for business informational security in this highly connected digital age.

Microsoft Accounts Targeted For Months, Hackers Serve A Security Reminder Read More »

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Malware attack hits US accounting firms

Malware Threat

A major accounting software and cloud services company has been hit by malware, affecting their many clients across the US.

Wolters Kluwer, a major provider of tax accounting software and cloud services, has been hit by malware. The many financial software services they offer to clients across the country have been down since Monday, May 6.

The software provided by Wolters Kluwer is extremely popular in the US accounting industry. Users include every one of the top 100 American accounting firms, as well as 90% of the top banks worldwide, and 90% of Fortune 500 companies.

This malware attack comes at an especially vulnerable time when many accounting firms (and their clients) are intending to file their taxes. With their primary accounting systems offline, they won’t be able to do so, or at least not with Wolters Kluwer software.

However, it’s not as simple as just using different accounting software. Wolters Kluwer also provides cloud services to their clients, which means that necessary client financial data is stored in their servers, and inaccessible by the accounting firms during this outage.

Since the attack began Monday morning, Wolters Kluwer took many of its systems offline to slow the spread of the malware. According to representatives, they have since been working non-stop to try to eliminate the malware and bring their systems back online. They have contacted authorities and third-party forensic teams to investigate the attack.

“We’re working around the clock to restore service, and we want to provide [clients] the assurance that we can restore service safely,” said Elizabeth Queen, vice president of risk management for Wolters Kluwer, to CNBC. “We’ve made very good progress so far.”

However, end-users have still not been able to access their tax documents that are stored in Wolters Kluwers cloud servers. The many systems that Wolters Kluwer took offline on Monday include the customer services lines that end users have relied on to get info from the software provider.

When a backup customer service number was finally provided, users were told that there is no estimated window in which the services will be fully restored. For the time being, thousands of accountants at numerous firms across the US are being expected to wait and see.

Malware attack hits US accounting firms Read More »

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