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Researchers Warn of MystRodX Backdoor Using DNS and ICMP Triggers for Stealthy Control

Researchers Warn of MystRodX Backdoor Using DNS and ICMP Triggers for Stealthy Control

Cybersecurity researchers have disclosed a stealthy new backdoor called MystRodX that comes with a variety of features to capture sensitive data from compromised systems. “MystRodX is a typical backdoor implemented in C++, supporting features like file management, port forwarding, reverse shell, and socket management,” QiAnXin XLab said in a reportRead More »Researchers Warn of MystRodX Backdoor Using DNS and ICMP Triggers for Stealthy Control

1965 Cryptanalysis Training Workbook Released by the NSA

In the early 1960s, National Security Agency cryptanalyst and cryptanalysis instructor Lambros D. Callimahos coined the term “Stethoscope” to describe a diagnostic computer program used to unravel the internal structure of pre-computer ciphertexts. The term appears in the newly declassified September 1965 document Cryptanalytic Diagnosis with the Aid of aRead More »1965 Cryptanalysis Training Workbook Released by the NSA

Ukrainian Network FDN3 Launches Massive Brute-Force Attacks on SSL VPN and RDP Devices

Ukrainian Network FDN3 Launches Massive Brute-Force Attacks on SSL VPN and RDP Devices

Cybersecurity researchers have flagged a Ukrainian IP network for engaging in massive brute-force and password spraying campaigns targeting SSL VPN and RDP devices between June and July 2025. The activity originated from a Ukraine-based autonomous system FDN3 (AS211736), per French cybersecurity company Intrinsec. “We believe with a high level ofRead More »Ukrainian Network FDN3 Launches Massive Brute-Force Attacks on SSL VPN and RDP Devices

Cookies and how to bake them: what they are for, associated risks, and what session hijacking has to do with it

Cookies and how to bake them: what they are for, associated risks, and what session hijacking has to do with it

When you visit almost any website, you’ll see a pop-up asking you to accept, decline, or customize the cookies it collects. Sometimes, it just tells you that cookies are in use by default. We randomly checked 647 websites, and 563 of them displayed cookie notifications. Most of the time, usersRead More »Cookies and how to bake them: what they are for, associated risks, and what session hijacking has to do with it

Silver Fox Exploits Microsoft-Signed WatchDog Driver to Deploy ValleyRAT Malware

Silver Fox Exploits Microsoft-Signed WatchDog Driver to Deploy ValleyRAT Malware

The threat actor known as Silver Fox has been attributed to abuse of a previously unknown vulnerable driver associated with WatchDog Anti-malware as part of a Bring Your Own Vulnerable Driver (BYOVD) attack aimed at disarming security solutions installed on compromised hosts. The vulnerable driver in question is “amsdk.sys” (versionRead More »Silver Fox Exploits Microsoft-Signed WatchDog Driver to Deploy ValleyRAT Malware

Malicious npm Package nodejs-smtp Mimics Nodemailer, Targets Atomic and Exodus Wallets

Malicious npm Package nodejs-smtp Mimics Nodemailer, Targets Atomic and Exodus Wallets

Cybersecurity researchers have discovered a malicious npm package that comes with stealthy features to inject malicious code into desktop apps for cryptocurrency wallets like Atomic and Exodus on Windows systems. The package, named nodejs-smtp, impersonates the legitimate email library nodemailer with an identical tagline, page styling, and README descriptions, attractingRead More »Malicious npm Package nodejs-smtp Mimics Nodemailer, Targets Atomic and Exodus Wallets

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