This Week in Security News: Shade Ransomware Shuts Down, Releases Decryption Keys and WebMonitor RAT Bundled with Zoom Installer

week in security

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, read about how the operators of the Shade (Troldesh) ransomware have shut down and released more than 750,000 decryption keys. Also, learn about an attack using Zoom installers to spread a WebMonitor RAT malware.

Read on:

The Industry 4.0 Lab Never Ignores Brownfields – What POLIMI and Trend Micro Aim to Prove

It takes time for new technologies to penetrate the market and even the most innovative technology must be used safely and with confidence. Industry 4.0 technology is no exception. Engineers and researchers, including those at Politecnico di Milano (POLIMI) and Trend Micro, are currently investigating how to map ICT technology principles onto OT environments, including factory environments.

Shade (Troldesh) Ransomware Shuts Down and Releases Decryption Keys

The operators of the Shade (Troldesh) ransomware have shut down and, as a sign of goodwill, have released more than 750,000 decryption keys that past victims can now use to recover their files. Security researchers from Kaspersky Lab have confirmed the validity of the leaked keys and are now working on creating a free decryption tool.

Trend Micro’s Top Ten MITRE Evaluation Considerations

The MITRE ATT&CK framework, and the evaluations, have gone a long way in helping advance the security industry, and the individual security products serving the market. The insight garnered from these evaluations is incredibly useful but can be hard to understand. In this blog, read Trend Micro’s top 10 key takeaways for its evaluation results.  

New Android Malware Steals Banking Passwords, Private Data and Keystrokes

A new type of mobile banking malware has been discovered abusing Android’s accessibility features to exfiltrate sensitive data from financial applications, read user SMS messages, and hijack SMS-based two-factor authentication codes. Dubbed “EventBot” by Cybereason researchers, the malware can target over 200 different financial apps, including banking, money transfer services, and crypto-currency wallets. 

Principles of a Cloud Migration – Security, The W5H – Episode WHAT?

Last week in Trend Micro’s cloud migration blog series, we explained the “WHO” of securing a cloud migration, detailing each of the roles involved with implementing a successful security practice during the migration. This week, Trend Micro touches on the “WHAT” of security: the key principles required before your first workload moves.  

Critical WordPress e-Learning Plugin Bugs Open Door to Cheating

Researchers have disclosed critical-severity flaws in three popular WordPress plugins used widely by colleges and universities: LearnPress, LearnDash and LifterLMS. The flaws, now patched, could allow students to steal personal information, change their grades, cheat on tests and more. 

WebMonitor RAT Bundled with Zoom Installer

The COVID-19 pandemic has highlighted the usefulness of communication apps for work-from-home setups. However, as expected, cybercriminals look to exploit popular trends and user behavior. Trend Micro has witnessed threats against several messaging apps, including Zoom. In April, Trend Micro spotted an attack using Zoom installers to spread a cryptocurrency miner. Trend Micro recently encountered a similar attack that drops a different malware: RevCode WebMonitor RAT. 

Group Behind TrickBot Spreads Fileless BazarBackdoor

A new campaign is spreading a new malware named “BazarBackdoor,” a fileless backdoor created by the same threat actors behind TrickBot, according to BleepingComputer. The conclusion is drawn due to similarities in code, crypters, and infrastructure between the two malware variants. The social engineering attacks used to spread the backdoor use topics such as customer complaints, COVID-19-themed payroll reports, and employee termination lists for the emails they send out. 

Critical Adobe Illustrator, Bridge and Magento Flaws Patched

Adobe is warning of critical flaws in Adobe Bridge, Adobe Illustrator and the Magento e-commerce platform. If exploited, the most severe vulnerabilities could enable remote code execution on affected systems. Francis Provencher, Mat Powell, and an anonymous reporter were credited for discovering the flaws, all working with Trend Micro’s Zero Day Initiative.

Guidance on Kubernetes Threat Modeling

Kubernetes is one of the most used container orchestration systems in cloud environments. As such, like any widely used application, it is an attractive target for cybercriminals and other threat actors. In this blog, Trend Micro shares three general areas that cloud administrators need to secure their deployments against, as they can introduce threats or risks to their Kubernetes-driven containerization strategies.

Loki Info Stealer Propagates Through LZH Files

Trend Micro previously encountered a spam sample that propagates the info stealer Loki through Windows Cabinet (CAB) files. Recently, Trend Micro also acquired another sample that delivers the same malware, but through LZH compressed archive files. Trend Micro detects the attachment and the dropper as TrojanSpy.Win32.LOKI.TIOIBYTU.

Security 101: How Fileless Attacks Work and Persist in Systems

As security measures improve, modern adversaries continue to craft sophisticated techniques to evade detection. One of the most persistent evasion techniques involves fileless attacks, which don’t require malicious software to break into a system. Instead of relying on executables, these threats misuse tools that are already in the system to initiate attacks.

COVID-19 Lockdown Fuels Increase in RDP Attacks

The number of attacks abusing the remote desktop protocol (RDP) to compromise corporate environments has increased significantly over the past couple of months, according to Kaspersky. With employees worldwide forced to work from home due to the COVID-19 pandemic, the volume of corporate traffic has increased significantly, just as the use of third-party services has increased to keep teams connected and efficient.

What measures are you taking to secure your migration to the cloud? Share your thoughts in the comments below or follow me on Twitter to continue the conversation: @JonLClay.