Webinar: Learn How AI-Powered Zero Trust Detects Attacks with No Files or Indicators

Security teams are still catching malware. The problem is what they're not catching. More attacks today don't arrive as files. They don't drop binaries. They don't trigger classic alerts. Instead, they run quietly through tools that already exist inside the environment — scripts, remote access,...

Malicious code in nspwieo (npm)

The package contains obfuscated code to load content from a suspicious external domain in the user's browser --- -= Per source details. Do not edit below this line.=-...

PEAKLIGHT Downloader Deployed in Attacks Targeting Windows with Malicious Movie Downloads

Cybersecurity researchers have uncovered a never-before-seen dropper that serves as a conduit to launch next-stage malware with the ultimate goal of infecting Windows systems with information stealers and loaders. "This memory-only dropper decrypts and executes a PowerShell-based downloader,"...

Konni Group Using Russian-Language Malicious Word Docs in Latest Attacks

A new phishing attack has been observed leveraging a Russian-language Microsoft Word document to deliver malware capable of harvesting sensitive information from compromised Windows hosts. The activity has been attributed to a threat actor called Konni, which is assessed to share overlaps with a...

VMware Carbon Black First to Block Hidden Malicious Commands in Obfuscated Scripts

For a long time now, our Threat Analysts have flagged the growing threat of script-based attacks, especially from Microsoft PowerShell and Windows Management Interface script commands, and their ability to escape notice in many antivirus solutions. Increasingly, these types of attacks have become...

Magecart Returns with Advertising Library Tactic

The Magecart card-skimming crime conglomerate has changed up its tactics in recent campaigns, injecting malicious code into third-party Java libraries used by e-commerce websites to serve advertisements. Typically, Magecart subsidiaries tend to compromise a few targeted websites in order to...

Threat Roundup for November 2 to November 9

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Nov. 02 and Nov. 09. As with previous roundups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics...

Out of sight but not invisible: Defeating fileless malware with behavior monitoring, AMSI, and next-gen AV

Consider this scenario: Two never-before-seen, heavily obfuscated scripts manage to slip past file-based detection and dynamically load an info-stealing payload into memory. The scripts are part of a social engineering campaign that tricks potential victims into running the scripts, which use the...

Microsoft Windows Defender AV: Block execution of potentially obfuscated scripts

This test checks the setting for policy OpenVAS Vulnerability Test $Id: winavblockexecobfuscatedscripts.nasl 11495 2018-09-20 10:06:25Z emoss $ Check value for Configure Attack Surface Reduction rules: Block execution of potentially obfuscated scripts Authors: Emanuel Moss Copyright: Copyright c...

Olympic Destroyer Returns to Target Biochemical Labs

Olympic Destroyer, the threat actor that caused a crippling sabotage attack on the networks supporting this year’s Winter Games in Pyeongchang, South Korea, has resurfaced with a spy campaign – and with a wider target range. The new campaign began last month and is ongoing, employing spear-phishi...