backdoor

Pierluigi Paganini March 21, 2025
RansomHub affiliate uses custom backdoor Betruger

Symantec researchers linked a custom backdoor, called Betruger, found in recent ransomware attacks to an affiliate of the RansomHub operation. Symantec’s Threat Hunter team has identified a custom backdoor, named Betruger, linked to a RansomHub affiliate. Designed for ransomware attacks, Betruger combines multiple functions into a single tool to minimize detection. It enables screenshot capture, […]

Pierluigi Paganini March 12, 2025
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. These TINYSHELL-based backdoors had various capabilities, including active and passive access and a script to […]

Pierluigi Paganini February 17, 2025
New Golang-based backdoor relies on Telegram for C2 communication

Netskope Threat Labs researchers discovered a Golang-based backdoor using Telegram for C2 communication, possibly of Russian origin. Netskope Threat Labs found a Golang-based backdoor using Telegram for C2. The malware, still in development but functional, exploits cloud apps to evade detection. The experts believe the new Go backdoor could have a Russian origin. Upon executing […]

Pierluigi Paganini February 10, 2025
UK Gov demands backdoor to access Apple iCloud backups worldwide

UK secretly demands Apple create an iCloud backdoor via a Technical Capability Notice, raising privacy concerns over end-to-end encryption. The UK demands Apple to create a backdoor to access any iCloud backups, the request raises concerns about user privacy and undermines Apple’s security commitments. “The British government’s undisclosed order, issued last month, requires blanket capability […]

Pierluigi Paganini January 14, 2025
Threat actors exploit Aviatrix Controller flaw to deploy backdoors and cryptocurrency miners

A critical vulnerability in Aviatrix Controller is actively exploited to deploy backdoors and cryptocurrency miners in the wild. A security researcher Jakub Korepta discovered a critical vulnerability, tracked as CVE-2024-50603 (CVSS score: 10.0), in the Aviatrix Controller. The flaw impacts Aviatrix Controller pre-7.1.4191 and 7.2.x pre-7.2.4996, it allows unauthenticated attackers to execute arbitrary code via improper command […]

Pierluigi Paganini January 06, 2025
PLAYFULGHOST backdoor supports multiple information stealing features

PLAYFULGHOST is a new malware family with capabilities including keylogging, screen and audio capture, remote shell access, and file transfer/execution. Google researchers analyzed a new malware family called PLAYFULGHOST that supports multiple features, including keylogging, screen and audio capture, remote shell, and file transfer/execution. The PLAYFULGHOST backdoor shares functionality with Gh0st RAT whose source code was publicly released in […]

Pierluigi Paganini August 21, 2024
A backdoor in millions of Shanghai Fudan Microelectronics RFID cards allows cloning

A flaw in millions of RFID cards manufactured by Shanghai Fudan Microelectronics allows these contactless cards to be cloned instantly. Researchers from security firm Quarkslab discovered a backdoor in millions of RFID cards manufactured by the Chinese chip manufacturer Shanghai Fudan Microelectronics. The experts announced the discovery of a hardware backdoor and successfully cracked its […]

Pierluigi Paganini August 20, 2024
Previously unseen Msupedge backdoor targeted a university in Taiwan

Experts spotted a previously undetected backdoor, dubbed Msupedge, that was employed in an attack against a university in Taiwan.  Broadcom Symantec researchers discovered a previously undetected backdoor, called Msupedge, that was employed in an attack targeting an unnamed university in Taiwan. The most notable feature of the backdoor is that it relies on DNS tunnelling […]

Pierluigi Paganini May 19, 2024
North Korea-linked Kimsuky used a new Linux backdoor in recent attacks

Symantec warns of a new Linux backdoor used by the North Korea-linked Kimsuky APT in a recent campaign against organizations in South Korea.  Symantec researchers observed the North Korea-linked group Kimsuky using a new Linux backdoor dubbed Gomir. The malware is a version of the GoBear backdoor which was delivered in a recent campaign by […]

Pierluigi Paganini May 17, 2024
Turla APT used two new backdoors to infiltrate a European ministry of foreign affairs

Russia-linked Turla APT allegedly used two new backdoors, named Lunar malware and LunarMail, to target European government agencies. ESET researchers discovered two previously unknown backdoors named LunarWeb and LunarMail that were exploited to breach European ministry of foreign affairs. The two backdoors are designed to carry out a long-term compromise in the target network, data […]