Microsoft discovered a new remote access trojan (RAT), dubbed StilachiRAT, that uses sophisticated techniques to avoid detection. In November 2024, Microsoft researchers discovered StilachiRAT, a sophisticated remote access trojan (RAT) designed for stealth, persistence, and data theft. Analysis of its…
Category: Security Affairs
Threat actors rapidly exploit new Apache Tomcat flaw following PoC release
Threat actors began exploiting a recently disclosed Apache Tomcat vulnerability immediately after the release of a PoC exploit code. A newly disclosed Apache Tomcat vulnerability, tracked as CVE-2025-24813, is being actively exploited just 30 hours after a public PoC was released.…
Attackers use CSS to create evasive phishing messages
Threat actors exploit Cascading Style Sheets (CSS) to bypass spam filters and detection engines, and track users’ actions and preferences. Cisco Talos observed threat actors abusing Cascading Style Sheets (CSS) to evade detection and track user behavior, raising security and…
Researcher releases free GPU-Based decryptor for Linux Akira ransomware
A researcher released a free decryptor for Linux Akira ransomware, using GPU power to recover keys through brute force. Security researcher Yohanes Nugroho created a free decryptor for Linux Akira ransomware, using GPUs to brute force the decryption keys. Initially…
Denmark warns of increased state-sponsored campaigns targeting the European telcos
Denmark ‘s cybersecurity agency warns of increased state-sponsored campaigns targeting the European telecom companies Denmark raised the cyber espionage threat level for its telecom sector from medium to high due to rising threats across Europe. The Danish Social Security Agency…
SECURITY AFFAIRS MALWARE NEWSLETTER ROUND 37
Security Affairs Malware newsletter includes a collection of the best articles and research on malware in the international landscape Undercover miner: how YouTubers get pressed into distributing SilentCryptoMiner as a restriction bypass tool Ragnar Loader Desert Dexter. Attacks on Middle…
Security Affairs newsletter Round 515 by Pierluigi Paganini – INTERNATIONAL EDITION
A new round of the weekly SecurityAffairs newsletter arrived! Every week the best security articles from Security Affairs are free in your email box. Enjoy a new round of the weekly SecurityAffairs newsletter, including the international press. New MassJacker clipper…
A ransomware attack hit the Micronesian state of Yap, causing the health system network to go down.
A Micronesian state suffered a ransomware attack and was forced to shut down all computers of its government health agency. A state in Micronesia, the state of Yap, suffered a ransomware attack, forcing the shutdown of all computers in its…
New MassJacker clipper targets pirated software seekers
Pirated software seekers are targeted by the new MassJacker clipper malware, according to CyberArk researchers. A new malware campaign spreading a new clipper malware dubbed MassJacker targets users searching for pirated software, Cyberark users warn. A clipper malware is a…
Cisco IOS XR flaw allows attackers to crash BGP process on routers
Cisco addressed a denial of service (DoS) vulnerability that allows attackers to crash the Border Gateway Protocol (BGP) process on IOS XR routers. Cisco has addressed a denial of service (DoS) vulnerability, tracked as CVE-2025-20115, that could allow an unauthenticated, remote attacker to crash…
LockBit ransomware developer Rostislav Panev was extradited from Israel to the U.S.
The US Justice Department announced that the LockBit ransomware developer Rostislav Panev was extradited from Israel to the U.S. The US Justice Department announced that one of the LockBit ransomware developer, Rostislav Panev (51), has been extradited to the United…
SuperBlack Ransomware operators exploit Fortinet Firewall flaws in recent attacks
Operators behind the SuperBlack ransomware exploited two vulnerabilities in Fortinet firewalls for recent attacks. Between January and March, researchers at Forescout Research – Vedere Labs observed a threat actors exploiting two Fortinet vulnerabilities to deploy the SuperBlack ransomware. The experts…
U.S. CISA adds Apple products and Juniper Junos OS flaws to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Apple products and Juniper Junos OS flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: The vulnerability CVE-2025-21590…
GitLab addressed critical auth bypass flaws in CE and EE
GitLab addressed two critical authentication bypass vulnerabilities in Community Edition (CE) and Enterprise Edition (EE). GitLab released security updates to address critical vulnerabilities in Community Edition (CE) and Enterprise Edition (EE). The company addressed nine vulnerabilities, including the two critical…
North Korea-linked APT group ScarCruft spotted using new Android spyware KoSpy
North Korea-linked APT group ScarCruft used a new Android spyware dubbed KoSpy to target Korean and English-speaking users. North Korea-linked threat actor ScarCruft (aka APT37, Reaper, and Group123) is behind a previously undetected Android surveillance tool named KoSpy that was used to target…
Experts warn of a coordinated surge in the exploitation attempts of SSRF vulnerabilities
Researchers warn of a “coordinated surge” in the exploitation attempts of SSRF vulnerabilities in multiple platforms. Threat intelligence firm GreyNoise observed Grafana path traversal exploitation attempts before the Server-Side Request Forgery (SSRF) surge on March 9, suggesting the attackers may…
Meta warns of actively exploited flaw in FreeType library
Meta warned that a vulnerability, tracked as CVE-2025-27363, impacting the FreeType library may have been exploited in the wild. Meta warned that an out-of-bounds write flaw, tracked as CVE-2025-27363 (CVSS score of 8.1), in the FreeType library may have been actively exploited in attacks.…
Medusa ransomware hit over 300 critical infrastructure organizations until February 2025
The Medusa ransomware operation hit over 300 organizations in critical infrastructure sectors in the United States until February 2025. The FBI, CISA, and MS-ISAC have issued a joint advisory detailing Medusa ransomware tactics, techniques, and indicators of compromise (IOCs) based…
China-linked APT UNC3886 targets EoL Juniper routers
Mandiant researchers warn that China-linked actors are deploying custom backdoors on Juniper Networks Junos OS MX routers. In mid-2024, Mandiant identified custom backdoors on Juniper Networks’ Junos OS routers, and attributed the attacks to a China-linked espionage group tracked as UNC3886.…
U.S. CISA adds six Microsoft Windows flaws to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds six Microsoft Windows flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the following vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog: Below are the descriptions of…