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News alert: SquareX discloses nasty browser-native ransomware that’s undetectable by antivirus

The Last Watchdog

Ransomware attacks typically involve tricking victims into downloading and installing the ransomware, which copies, encrypts, and/or deletes critical data on the device, only to be restored upon the ransom payment. Traditionally, the primary target of ransomware has been the victims device. .

Antivirus 147
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Lumma Stealer – Tracking distribution channels

SecureList

txt file contains aBase64-encoded PowerShell script that then downloads and runs theLumma Stealer. txt The script performs the following actions: Downloads the malware. It downloads the win15.zip When decoded, the malicious PowerShell script looks like this: Contents of win15.txt zip file from https[:]//win15.b-cdn[.]net/win15.zip

Malware 77
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Latin American Javali trojan weaponizing Avira antivirus legitimate injector to implant malware

Security Affairs

Latin American Javali trojan weaponizing Avira antivirus legitimate injector to implant malware. The initial stage of these trojans is generally the execution of a dropper in a form of a VBS, JScript, or MSI file that downloads from the Cloud (AWS, Google, etc.) the trojan loader/injector.

Antivirus 137
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Microsoft Patch Tuesday, June 2022 Edition

Krebs on Security

Dubbed “ Follina ,” the flaw became public knowledge on May 27, when a security researcher tweeted about a malicious Word document that had surprisingly low detection rates by antivirus products. “Most malicious Word documents leverage the macro feature of the software to deliver their malicious payload. .

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QNodeService Trojan spreads via fake COVID-19 tax relief

Security Affairs

and is delivered through a Java downloader embedded in the.jar file, Trend Micro warns. . “Running this file led to the download of a new, undetected malware sample written in Node.js; this trojan is dubbed as “QNodeService”.” However, the use of an uncommon platform may have helped evade detection by antivirus software.”

Malware 140
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Silver Sparrow, a new malware infects Mac systems using Apple M1 chip

Security Affairs

“The novelty of this downloader arises primarily from the way it uses JavaScript for execution—something we hadn’t previously encountered in other macOS malware—and the emergence of a related binary compiled for Apple’s new M1 ARM64 architecture.” .” reads the analysis published by RedCanary.

Malware 145
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Bizarro banking Trojan targets banks in Brazil and abroad

Security Affairs

Experts pointed out that it also leverages social engineering to trick victims into downloading a mobile app. It is distributed via Microsoft Installer packages which are downloaded by victims from links that are included in spam messages. “Once launched, Bizarro downloads a ZIP archive from a compromised website.

Banking 133