malware
Hackers use PHP exploit to backdoor Windows systems with new malware
Unknown attackers have deployed a newly discovered backdoor dubbed Msupedge on a university’s Windows systems in Taiwan, likely by exploiting a recently patched PHP remote code execution vulnerability (CVE-2024-4577). CVE-2024-4577 is a critical PHP-CGI argument injection flaw patched in June that impacts PHP installations running on Windows systems with PHP running in CGI mode. It allows unauthenticated attackers […]
New Windows SmartScreen bypass exploited as zero-day since March
Today, Microsoft revealed that a Mark of the Web security bypass vulnerability exploited by attackers as a zero-day to bypass SmartScreen protection was patched during the June 2024 Patch Tuesday. SmartScreen is a security feature introduced with Windows 8 that protects users against potentially malicious software when opening downloaded files tagged with a Mark of […]
Hackers posing as Ukraine’s Security Service infect 100 govt PCs
Attackers impersonating the Security Service of Ukraine (SSU) have used malicious spam emails to target and compromise systems belonging to the country’s government agencies. On Monday, the Computer Emergency Response Team of Ukraine (CERT-UA) disclosed that the attackers successfully infected over 100 computers with AnonVNC malware. Some samples were signed using the code signing certificate […]
Malware force-installs Chrome extensions on 300,000 browsers, patches DLLs
An ongoing and widespread malware campaign force-installed malicious Google Chrome and Microsoft Edge browser extensions in over 300,000 browsers, modifying the browser’s executables to hijack homepages and steal browsing history. The installer and extensions, which are usually undetected by antivirus tools, are designed to steal data and execute commands on infected devices. The campaign was discovered by […]
New AMD SinkClose flaw helps install nearly undetectable malware
AMD is warning about a high-severity CPU vulnerability named SinkClose that impacts multiple generations of its EPYC, Ryzen, and Threadripper processors. The vulnerability allows attackers with Kernel-level (Ring 0) privileges to gain Ring -2 privileges and install malware that becomes nearly undetectable. Ring -2 is one of the highest privilege levels on a computer, running […]
New CMoon USB worm targets Russians in data theft attacks
A new self-spreading worm named ‘CMoon,’ capable of stealing account credentials and other data, has been distributed in Russia since early July 2024 via a compromised gas supply company website. According to Kaspersky researchers who discovered the campaign, CMoon can perform a broad range of functions, including loading additional payloads, snapping screenshots, and launching distributed denial of […]
New LianSpy malware hides by blocking Android security feature
A previously undocumented Android malware named ‘LightSpy’ has been discovered targeting Russian users, posing on phones as an Alipay app or a system service to evade detection. Analysis shows that LianSpy has been actively targeting Android users since July 2021, but its extensive stealth capabilities helped it remain undetected for over three years. Kaspersky researchers […]
Ransomware gang targets IT workers with new SharpRhino malware
The Hunters International ransomware group is targeting IT workers with a new C# remote access trojan (RAT) called SharpRhino to breach corporate networks. The malware helps Hunters International achieve initial infection, elevate their privileges on compromised systems, execute PowerShell commands, and eventually deploy the ransomware payload. Quorum Cyber researchers who discovered the new malware report that it […]
North Korean hackers exploit VPN update flaw to install malware
South Korea’s National Cyber Security Center (NCSC) warns that state-backed DPRK hackers hijacked flaws in a VPN’s software update to deploy malware and breach networks. The advisory connects this activity with a nationwide industrial factories modernization project Kim Jong-un, the North Korean president, announced in January 2023, believing the hackers are looking to steal trade […]
Hackers breach ISP to poison software updates with malware
A Chinese hacking group tracked as StormBamboo has compromised an undisclosed internet service provider (ISP) to poison automatic software updates with malware. Also tracked as Evasive Panda, Daggerfly, and StormCloud, this cyber-espionage group has been active since at least 2012, targeting organizations across mainland China, Hong Kong, Macao, Nigeria, and various Southeast and East Asian countries. On […]