Malware

December 19, 2023

First discovered in 2014, Agent Tesla is an advanced keylogger with features like clipboard logging, screen keylogging, screen capturing, and extracting stored passwords from different web browsers. Recently, Zscaler ThreatLabz detected a threat campaign where threat actors leverage CVE-2017-11882 XLAM to spread Agent Tesla to users on vulnerable versions of Microsoft Office. The CVE-2017-11882 vulnerability is ...

December 14, 2023

Rhadamanthys is an information stealer with a diverse set of modules and an interesting multilayered design. In their last article on Rhadamanthys, Check Point researchers focused on the custom executable formats used by this malware and their similarity to a different family, Hidden Bee, which is most likely its predecessor. In this article they do a ...

December 11, 2023

During their recent investigations, the Trend Micro Managed XDR (MxDR) team handled various cases involving AsyncRAT, a Remote Access Tool (RAT) with multiple capabilities,  such as keylogging and remote desktop control, that make it a substantial threat to victims. This blog entry delves into MxDR’s unraveling of the AsyncRAT infection chain across multiple cases, shedding light ...

December 7, 2023

FortiGuard Labs recently identified an email phishing campaign using deceptive booking information to entice victims into clicking on a malicious PDF file. The PDF downloads a .NET executable file created with PowerGUI and then runs a PowerShell script to fetch the final malware, known as MrAnon Stealer. This malware is a Python-based information stealer compressed with ...

December 6, 2023

Illegally distributed software historically has served as a way to sneak malware onto victims’ devices. Kaspersky researchers have recently discovered several cracked applications distributed by unauthorized websites and loaded with a Trojan-Proxy. Attackers can use this type of malware to gain money by building a proxy server network or to perform criminal acts on behalf of ...

December 1, 2023

Unit 42 researchers observed a series of apparently related attacks against organizations in the Middle East, Africa and the U.S. The researchers will discuss a set of tools used in the course of the attacks that reveal clues about the threat actors’ activity. Unit 42 team is sharing this research to provide detection, prevention and hunting ...

November 30, 2023

BlackBerry has uncovered a previously unknown threat actor targeting an aerospace organization in the United States, with the apparent goal of conducting commercial and competitive cyber espionage. The BlackBerry Threat Research and Intelligence team is tracking this threat actor as AeroBlade. The actor used spear-phishing as a delivery mechanism: A weaponized document, sent as an email ...

November 30, 2023

In 2023, Positive Technologies Computer Security Incident Response Team (PT CSIRT) discovered that a certain power company was compromised by the Decoy Dog trojan. According to the PT CSIRT investigation, Decoy Dog has been actively used in cyberattacks on Russian companies and government organizations since at least September 2022. This trojan was previously discussed by NCIRCC, Infoblox, ...

November 29, 2023

With the surging popularity of mobile applications, the landscape of cybersecurity is encountering increasingly intricate and discreet forms of malicious software. One common strategy in the realm of cybersecurity is code obfuscation. This practice involves the deliberate alteration of various elements within the code, such as variables, functions, and class names, rendering them virtually indecipherable. This ...

November 23, 2023

Amid tensions in the ongoing Israel-Hamas war, Check Point Research has been conducting active threat hunting in an effort to discover, attribute, and mitigate relevant regional threats. Among those, some new variants of the SysJoker malware, including one coded in Rust, recently caught our attention. Check Point assessment is that these were used in targeted attacks ...