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Category — XWorm
Inside XWorm: Malware Analysts Decode the Stealthy Tactics of the Latest Variant

Inside XWorm: Malware Analysts Decode the Stealthy Tactics of the Latest Variant

Sep 19, 2023 Malware Analysis / Cyber Threat
XWorm is a relatively new representative of the remote access trojan cohort that has already earned its spot among the most persistent threats across the globe.  Since 2022, when it was first observed by researchers, it has undergone a number of major updates that have significantly enhanced its functionality and solidified its staying power.  The analyst team at  ANY.RUN  came across the newest version of the malware and could not refuse the opportunity of taking it apart to examine XWorm mechanics configurations. Here is how they did it and what they found.  The XWorm sample's source  The sample in question was discovered in ANY. RUN's database of malware, a repository containing detailed analysis reports on all files and links that have been uploaded by users of the sandbox in public mode.  A quick look at the results of the analysis revealed that the sample was initially distributed via MediaFire, a file-hosting service. The malware was packa...
New Attack Alert: Freeze[.]rs Injector Weaponized for XWorm Malware Attacks

New Attack Alert: Freeze[.]rs Injector Weaponized for XWorm Malware Attacks

Aug 10, 2023 Malware / Cyber Threat
Malicious actors are using a legitimate Rust-based injector called  Freeze[.]rs  to deploy a commodity malware called XWorm in victim environments. The novel attack chain, detected by Fortinet FortiGuard Labs on July 13, 2023, is initiated via a phishing email containing a booby-trapped PDF file. It has also been used to introduce Remcos RAT by means of a crypter called SYK Crypter, which was first documented by Morphisec in May 2022. "This file redirects to an HTML file and utilizes the 'search-ms' protocol to access an LNK file on a remote server," security researcher Cara Lin  said . "Upon clicking the LNK file, a PowerShell script executes Freeze[.]rs and SYK Crypter for further offensive actions." Freeze[.]rs, released on May 4, 2023, is an  open-source red teaming tool  from Optiv that functions as a payload creation tool used for circumventing security solutions and executing shellcode in a stealthy manner. "Freeze[.]rs utilizes multiple te...
4 Ways to Keep MFA From Becoming too Much of a Good Thing

4 Ways to Keep MFA From Becoming too Much of a Good Thing

Feb 11, 2025IT Security / Threat Protection
Multi-factor authentication (MFA) has quickly become the standard for securing business accounts. Once a niche security measure, adoption is on the rise across industries. But while it's undeniably effective at keeping bad actors out, the implementation of MFA solutions can be a tangled mess of competing designs and ideas. For businesses and employees, the reality is that MFA sometimes feels like too much of a good thing. Here are a few reasons why MFA isn't implemented more universally. 1. Businesses see MFA as a cost center MFA for businesses isn't free, and the costs of MFA can add up over time. Third-party MFA solutions come with subscription costs, typically charged per user. Even built-in options like Microsoft 365's MFA features can cost extra depending on your Microsoft Entra license. Plus, there's the cost of training employees to use MFA and the time IT takes to enroll them. If MFA increases help desk calls, support costs go up too. While these expenses are far less t...
XWorm Malware Exploits Follina Vulnerability in New Wave of Attacks

XWorm Malware Exploits Follina Vulnerability in New Wave of Attacks

May 12, 2023 Cyber Threat / Malware
Cybersecurity researchers have discovered an ongoing phishing campaign that makes use of a unique attack chain to deliver the  XWorm malware  on targeted systems. Securonix, which is tracking the activity cluster under the name  MEME#4CHAN , said some of the attacks have primarily targeted manufacturing firms and healthcare clinics located in Germany. "The attack campaign has been leveraging rather unusual meme-filled PowerShell code, followed by a heavily obfuscated XWorm payload to infect its victims," security researchers Den Iuzvyk, Tim Peck, and Oleg Kolesnikov said in a new analysis shared with The Hacker News. The report builds on  recent findings  from Elastic Security Labs, which revealed the threat actor's reservation-themed lures to deceive victims into opening malicious documents capable of delivering XWorm and Agent Tesla payloads. The attacks begin with phishing attacks to distribute decoy Microsoft Word documents that, instead of using macr...
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