admin

admin

  • Joined: September 10, 2024
  • Articles: 4662

Hackers Target Critical CrushFTP Vulnerability to Gain Administrative Access on Unpatched Servers

July 20, 2025
Vulnerability / Threat Intelligence

A recently identified critical vulnerability in CrushFTP is now being actively exploited. Designated CVE-2025-54309, this flaw has a CVSS score of 9.0. According to the NIST National Vulnerability Database, “CrushFTP versions 10 prior to 10.8.5 and 11 prior to 11.3.4_23, when the DMZ proxy feature is not in use, improperly handles AS2 validation, enabling remote attackers to gain admin access via HTTPS.” CrushFTP reported detecting the first zero-day exploitation of this vulnerability on July 18, 2025, at 9 a.m. CST, although they noted that it might have been weaponized earlier. The company explained, “The attack vector utilized HTTP(S) to exploit the server. While we had addressed a separate AS2-related issue in HTTP(S), we did not realize that a previous bug could be exploited in this manner. It seems hackers observed our code changes and took advantage of them.”

Exploit of Critical Vulnerability in CrushFTP Grants Unauthorized Admin Access On July 20, 2025, cybersecurity experts reported that a serious security vulnerability in CrushFTP has been actively exploited. This vulnerability, identified as CVE-2025-54309, has been assigned a CVSS score of…

ZLoader Malware Makes a Comeback Using DNS Tunneling to Conceal C2 Communications

Cybersecurity researchers have identified a new iteration of the ZLoader malware that utilizes Domain Name System (DNS) tunneling for command-and-control (C2) communications, showcasing that threat actors are actively enhancing their toolset after its reappearance a year ago. “Zloader version 2.9.4.0 features significant improvements, including a custom DNS tunnel protocol for C2 communications and an interactive shell supporting over a dozen commands, potentially aiding in ransomware attacks,” Zscaler ThreatLabz noted in a report released on Tuesday. “These enhancements provide added resilience against detection and mitigation efforts.” ZLoader, also known as Terdot, DELoader, or Silent Night, functions as a malware loader capable of deploying subsequent payloads. Following the shutdown of its infrastructure, malware campaigns distributing ZLoader were observed again for the first time in nearly two years in September 2023.

ZLoader Malware Resurfaces Utilizing DNS Tunneling for C2 Communications On December 11, 2024, cybersecurity experts reported the emergence of an updated version of the ZLoader malware, which now employs a Domain Name System (DNS) tunneling technique for its command-and-control (C2)…

Severe Unpatched SharePoint Zero-Day Under Active Exploitation, Compromises Over 75 Company Servers

July 20, 2025
Zero-Day / Vulnerability

A serious security flaw in Microsoft SharePoint Server has been weaponized in an ongoing, large-scale exploitation campaign. The zero-day vulnerability, identified as CVE-2025-53770 (CVSS score: 9.8), is a variant of CVE-2025-49704 (CVSS score: 8.8), which was addressed by Microsoft in their July 2025 Patch Tuesday updates. Microsoft explained that “deserialization of untrusted data in on-premises Microsoft SharePoint Server enables unauthorized attackers to execute code over a network,” as detailed in an advisory released on July 19, 2025. The company is actively preparing a comprehensive update to mitigate this issue. Viettel Cyber Security is credited with discovering and reporting the flaw through Trend Micro’s Zero Day Initiative (ZDI). Additionally, Microsoft has acknowledged awareness of ongoing attacks related to this vulnerability.

Critical Unpatched SharePoint Zero-Day Under Active Exploitation, Compromises Over 75 Company Servers July 20, 2025 In an alarming development, a critical zero-day vulnerability in Microsoft SharePoint Server has been actively exploited in a large-scale attack campaign, leading to the breach…

Ukrainian Children Recruited for Cyber Operations and Reconnaissance in Russian Strikes

Dec 16, 2024
Cyber Attacks / Cyber Espionage

The Security Service of Ukraine (SBU) has uncovered a new espionage initiative allegedly led by Russia’s Federal Security Service (FSB), involving the recruitment of Ukrainian minors for illicit activities disguised as “quest games.” Law enforcement officials detained two groups of FSB agents in a special operation in Kharkiv, which included only children aged 15 and 16. According to the SBU, “The minors undertook hostile missions involving reconnaissance, targeting adjustments, and arson.” To obscure their subversive roles, both factions operated independently. Under the FSB’s quest game framework, the children were provided with geographic coordinates and tasked with reaching specified locations, capturing photos and videos of targets, and offering a description of the surrounding environment. The findings from these reconnaissance missions…

Ukrainian Minors Targeted for Espionage Activities Linked to Russian Cyber Operations December 16, 2024 Cyber Attack / Cyber Espionage In a troubling development in the realm of cybersecurity, the Security Service of Ukraine (SBU) has unveiled a sophisticated espionage campaign…