Security News

The Iranian threat actor tracked as APT34 has been linked to a new phishing attack that leads to the deployment of a variant of a backdoor called SideTwist. "APT34 has a high level of attack technology, can design different intrusion methods for different types of targets, and has supply chain attack capability," NSFOCUS Security Labs said in a report published last week.

"The attackers aimed to establish a permanent channel for data exfiltration, including data stored on air-gapped systems," Kaspersky said in an analysis spotlighting APT31's previously undocumented tradecraft. Some variants of the second-stage backdoors also come with features designed to look up file names in the Microsoft Outlook folder, execute remote commands, and employ the third-step component to complete the data exfiltration step in the form of RAR archive files.

The U.S. Cybersecurity & Infrastructure Security Agency (CISA) has discovered a new backdoor malware named 'Whirlpool' used in attacks on compromised Barracuda Email Security Gateway (ESG) devices. [...]

Threat actors associated with the hacking crew known as Patchwork have been spotted targeting universities and research organizations in China as part of a recently observed campaign. "Patchwork relied on a range of elaborate fictitious personas to socially engineer people into clicking on malicious links and downloading malicious apps," the social media giant said.

The Cybersecurity and Infrastructure Agency has published an analysis report on the backdoors dropped by attackers exploiting CVE-2023-2868, a remote command injection vulnerability in Barracuda Email Security Gateway appliances. In late May, Barracuda warned that attackers have been exploiting the vulnerability in Barracuda Networks' ESG physical appliances.

The U.S. Cybersecurity and Infrastructure Security Agency on Friday disclosed details of a "Novel persistent backdoor" called SUBMARINE deployed by threat actors in connection with the hack on Barracuda Email Security Gateway appliances. The findings come from an analysis of malware samples obtained from an unnamed organization that had been compromised by threat actors exploiting a critical flaw in ESG devices, CVE-2023-2868, which allows for remote command injection.

The Russian nation-state actor known as BlueBravo has been observed targeting diplomatic entities throughout Eastern Europe with the goal of delivering a new backdoor called GraphicalProton, exemplifying the continuous evolution of the threat. The phishing campaign is characterized by the use of legitimate internet services for command-and-control obfuscation, Recorded Future said in a new report published Thursday.

Seems that there is a deliberate backdoor in the twenty-year-old TErrestrial Trunked RAdio standard used by police forces around the world. TETRA has been used in products, including radios, sold by Motorola, Airbus, and more.

The defense sector in Ukraine and Eastern Europe has been targeted by a novel. NET-based backdoor called DeliveryCheck that's capable of delivering next-stage payloads.

The financially motivated threat actor known as FIN8 has been observed using a "Revamped" version of a backdoor called Sardonic to deliver the BlackCat ransomware. Known to be active since at least 2016, the adversary was originally attributed to attacks targeting point-of-sale systems using malware such as PUNCHTRACK and BADHATCH. The group resurfaced after more than a year in March 2021 with an updated version of BADHATCH, following it up with a completely new bespoke implant called Sardonic, which was disclosed by Bitdefender in August 2021.