Higaisa APT has been known since November 2019, when Tencent researchers first documented its activities. The group was discovered recently, but attackers have been operating for several years and use common tools to complicate the attribution. They mainly use mobile malware and the Gh0st and PlugX trojans. Researchers believe that Higaisa APT is a South […]
Despite the fact that new ransomware families appear quite often, most of them are focused exclusively on Windows systems. Way more interesting is Tycoon, a multi-platform Java ransomware that can encrypt files on both Windows and Linux systems. This family has been observed in-the-wild since at least December 2019. Its authors compiled it into a […]
Russian state-sponsored cyber espionage unit known for its destructive attacks is actively compromising Exim mail servers via a critical security vulnerability (CVE-2019-10149). At the end of May, the National Security Agency released a Cyber Security Advisory that warned of a campaign linked to Sandworm Group. The group is best known for its BlackEnergy campaign, the […]
Hello everyone, we are back with five fresh rules submitted this week by participants of the Threat Bounty Program. You can check our previous digests here, and if you have any questions, then welcome to the chat. Pykspa worm-like malware can install itself to maintain persistence, listen to incoming port for additional commands, and drop […]
Today’s post is dedicated to the Himera loader malware that adversaries have been using in COVID-19 related phishing campaigns since last month. Cybercriminals continue to exploit the Family and Medical Leave Act requests related to the ongoing COVID19 pandemics as a lure, as this theme have already proven its effectiveness in distributing Trickbot and Kpot […]
Today, under the Threat Hunting Content column, we are heightening your interest in AsyncRAT Detection (Sysmon Behavior) community rule by Emir Erdogan. The rule enables the detection of AsyncRat by using sysmon logs. According to the author of the project on GitHub, AsyncRat is a Remote Access Tool designed to remotely monitor and control other […]
We recently published a rule to discover one of the latest tools of the notorious APT38 group more known as Lazarus or Hidden Cobra. And it is time to continue publishing content to discover this sophisticated cybercriminal group. In today’s article, we will give the links on fresh detection content from one of the first […]
Nowadays, during the lockdown, many organizations continue to use Zoom at the corporate level to conduct conference meetings, despite the security issues found in this application. Attackers have been exploiting the increased popularity of this application for several months, and you can partially protect your organization from attacks by hardening Zoom service. But this will […]
Scarab ransomware was spotted for the first time in June 2017 and had been reappearing with new versions since then. This ransomware is one of the many HiddenTear variants, an open source ransomware Trojan released in 2015. The recently discovered versions of ransomware use an improved RSA encryption method and add various extensions to infected […]
PipeMon is a modular backdoor that is signed with a certificate belonging to a video game company, which was compromised by Winnti group in 2018. Researchers at ESET discovered this backdoor used in attacks on companies in South Korea and Taiwan that develop popular Massively Multiplayer Online games. They named the backdoor PipeMon because the […]