#StopRansomware: Cuba Ransomware 

Today, the Federal Bureau of Investigation FBI and CISA released a joint Cybersecurity Advisory CSA StopRansomware: Cuba Ransomware to provide network defenders tactics, techniques, and procedures TTPs and indicators of compromise IOCs associated with Cuba ransomware. FBI investigations identifie...

This Malware Installs Malicious Browser Extensions to Steal Users' Passwords and Cryptos

A malicious extension for Chromium-based web browsers has been observed to be distributed via a long-standing Windows information stealer called ViperSoftX. Czech-based cybersecurity company dubbed the rogue browser add-on VenomSoftX owing to its standalone features that enable it to access websi...

Threat Roundup for October 28 to November 4

Today, Talos is publishing a glimpse into the most prevalent threats weve observed between Oct. 28 and Nov. 4. As with previous roundups, this post isnt meant to be an in-depth analysis. Instead, this post will summarize the threats weve observed by highlighting key behavioral characteristics,...

Hackers Using Rogue Versions of KeePass and SolarWinds Software to Distribute RomCom RAT

The operators of RomCom RAT malware are continuing to evolve their campaigns by distributing rogue versions of software such as SolarWinds Network Performance Monitor, KeePass password manager, and PDF Reader Pro via fake copycat websites. Targets of the operation consist of victims in Ukraine an...

Threat Roundup for October 21 to October 28

Today, Talos is publishing a glimpse into the most prevalent threats weve observed between Oct. 21 and Oct. 28. As with previous roundups, this post isnt meant to be an in-depth analysis. Instead, this post will summarize the threats weve observed by highlighting key behavioral characteristics,...

Unknown Actors are Deploying RomCom RAT to Target Ukrainian Military

The threat actor behind a remote access trojan called RomCom RAT has been observed targeting Ukrainian military institutions as part of a new spear-phishing campaign that commenced on October 21, 2022. The development marks a shift in the attacker's modus operandi, which has been previously...

Threat Roundup for September 23 to September 30

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Sept. 23 and Sept. 30. 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...

Cyber Criminals Using Quantum Builder Sold on Dark Web to Deliver Agent Tesla Malware

A recently discovered malware builder called Quantum Builder is being used to deliver the Agent Tesla remote access trojan RAT. "This campaign features enhancements and a shift toward LNK Windows shortcut files when compared to similar attacks in the past," Zscaler ThreatLabz researchers Niraj...

Rewards plus: Fake mobile banking rewards apps lure users to install info-stealing RAT on Android devices

Our analysis of a recent version of a previously reported info-stealing Android malware, delivered through an ongoing SMS campaign, demonstrates the continuous evolution of mobile threats. Masquerading as a banking rewards app, this new version has additional remote access trojan RAT capabilities...

North Korean Lazarus Hackers Targeting Energy Providers Around the World

A malicious campaign mounted by the North Korea-linked Lazarus Group targeted energy providers around the world, including those based in the United States, Canada, and Japan, between February and July 2022. "The campaign is meant to infiltrate organizations around the world for establishing...

Chinese Hackers Target Government Officials in Europe, South America, and Middle East

A Chinese hacking group has been attributed to a new campaign aimed at infecting government officials in Europe, the Middle East, and South America with a modular malware known as PlugX. Cybersecurity firm Secureworks said it identified the intrusions in June and July 2022, once again demonstrati...

Novel remote access trojan CodeRAT uncovered

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary CodeRAT is a remote access trojan RAT. The malicious operation, which appears to have originated in Iran, employed a Word document with a Microsoft Dynamic Data Exchange DDE exploit to target...

North Korean Hackers Deploying New MagicRAT Malware in Targeted Campaigns

The prolific North Korean nation-state actor known as the Lazarus Group has been linked to a new remote access trojan called MagicRAT. The previously unknown piece of malware is said to have been deployed in victim networks that had been initially breached via successful exploitation of...

MagicRAT: Lazarus’ latest gateway into victim networks

By Jung soo An, Asheer Malhotra and Vitor Ventura. Cisco Talos has discovered a new remote access trojan RAT we're calling "MagicRAT," developed and operated by the Lazarus APT group, which the U.S. government believes is a North Korean state-sponsored actor. Lazarus deployed MagicRAT after the...

Threat Roundup for August 26 to September 2

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Aug. 26 and Sept. 2. 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...

Threat Roundup for August 19 to August 26

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between Aug. 19 and Aug. 26. 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...

Hackers Using Fake DDoS Protection Pages to Distribute Malware

WordPress sites are being hacked to display fraudulent Cloudflare DDoS protection pages that lead to the delivery of malware such as NetSupport RAT and Raccoon Stealer. "A recent surge in JavaScript injections targeting WordPress sites has resulted in fake DDoS prevent prompts which lead victims ...

Meet Borat RAT, a New Unique Triple Threat

Atlanta-based cyber risk intelligence company, Cyble discovered a new Remote Access Trojan RAT malware. What makes this particular RAT malware distinct enough to be named after the comic creation of Sacha Baron Cohen? RAT malware typically helps cybercriminals gain complete control of a victim's...

AsyncRAT C2 Framework: Overview, Technical Analysis & Detection

In this blog we describe the AsyncRAT C2 command & control Framework, which allows attackers to remotely monitor and control other computers over a secure encrypted link. We provide an overview of this threat, a technical analysis, and a method of detecting the malware using Qualys Multi-Vector...

Zero-day vulnerability leveraged to deploy Cuba Ransomware

Threat Level Attack Report For a detailed advisory, download the pdf file here Summary The threat actors behind the Cuba ransomware have stepped up their game by using a new Remote Access Trojan called ROMCOM and weaponizing a local privilege escalation vulnerabilityCVE-2022-24521. A wide range o...