Pierluigi Paganini
July 15, 2021
HelloKitty ransomware gang is using a Linux variant of their malware to target VMware ESXi virtual machine platform. A Linux variant of the HelloKitty ransomware was employed in attacks against VMware ESXi systems. The move of the ransomware gang aims at expanding the operations targeting enterprises that are largely adopting virtualizing platforms. Targeting VMware ESXi […]
Pierluigi Paganini
June 29, 2021
The REvil ransomware operators added a Linux encryptor to their arsenal to encrypt Vmware ESXi virtual machines. The REvil ransomware operators are now using a Linux encryptor to encrypts Vmware ESXi virtual machines which are widely adopted by enterprises. The availability of the Linux encryptor was announced by the REvil gang in May, a circumstance […]
Pierluigi Paganini
June 12, 2021
An authentication bypass flaw in the polkit auth system service used on most Linux distros can allow to get a root shell. An authentication bypass vulnerability in the polkit auth system service, tracked as CVE-2021-3560, which is used on most Linux distros can allow an unprivileged attacker to get a root shell. “A flaw was found […]
Pierluigi Paganini
May 30, 2021
Qihoo 360 NETLAB spotted a new backdoor dubbed Facefish that could allow attackers to take over Linux systems and steal sensitive data. Cybersecurity experts from Qihoo 360 NETLAB published details about a new backdoor, dubbed Facefish, which can be used by threat actors to steal login credentials and executing arbitrary commands on Linux systems. The […]
Pierluigi Paganini
April 29, 2021
An information disclosure issue in Linux Kernel allows KASLR bypass could be potentially exploited in attacks in the wild. An information disclosure flaw in the Linux kernel, tracked as CVE-2020-28588, could allow attackers to bypass the Kernel Address Space Layout Randomization bypass (KASLR). The Kernel Address space layout randomization (KASLR) is a computer security technique designed to prevent […]
Pierluigi Paganini
April 29, 2021
Experts recently uncovered a Linux backdoor, dubbed RotaJakiro, that has flown under the radar for many years while harvest and exfiltrate sensitive information from the victims. RotaJakiro is a Linux backdoor recently discovered by researchers at Qihoo 360’s Network Security Research Lab (360 Netlab). The malware remained undetected for years while threat actors were employing […]
Pierluigi Paganini
March 30, 2021
Linux kernel recently fixed a couple of vulnerabilities that could allow an attacker to bypass mitigations designed to protect devices against Spectre attacks. Kernel updates released in March have addressed a couple of vulnerabilities that could be exploited by an attacker to bypass mitigations designed to protect devices against Spectre attacks. In January 2018, White […]
Pierluigi Paganini
March 13, 2021
Three 15-year-old flaws in Linux kernel could be exploited by local attackers with basic user privileges to gain root privileges on vulnerable Linux systems. GRIMM researchers found three vulnerabilities in the SCSI (Small Computer System Interface) component of the Linux kernel, the issues could be exploited by local attackers with basic user privileges to gain root privileges […]
Pierluigi Paganini
March 11, 2021
Intezer experts have spotted a new strain of Linux backdoor dubbed RedXOR that is believed to be part of the arsenal of China-linked Winniti APT. Researchers from Intezer have discovered a new sophisticated backdoor, tracked as RedXOR, that targets Linux endpoints and servers. The malware was likely developed by the China-linked cyber espionage group Winnti. […]
Pierluigi Paganini
March 05, 2021
Experts found five vulnerabilities in the Linux kernel, tracked as CVE-2021-26708, that could lead to local privilege escalation. Positive Technologies researcher Alexander Popov found five high severity vulnerabilities in the Linux kernel that could lead to local privilege escalation. The Linux kernel vulnerabilities are race conditions that reside in AF_VSOCK implementation, they were implicitly introduced in November […]
