- Mallox ransomware: in-depth analysis and evolution
September 4, 2024
Mallox is a sophisticated and dangerous family of malicious software that has been causing significant damage to organizations worldwide. In 2023, this ransomware strain demonstrated an uptick in attacks, the overall number of discovered Mallox samples exceeding 700. In the first half of 2024, the malware was still being actively developed, with new versions being released ...
- Stone Wolf employs Meduza Stealer to hack Russian companies
September 2, 2024
BI.ZONE Threat Intelligence reports an increase in criminal activity employing commercial malware available on underground resources. Recently, the researchers identified a malicious campaign by a cluster later dubbed Stone Wolf. The adversaries send out phishing emails on behalf of a legitimate provider of industrial automation solutions. The goal of the attackers is to deliver Meduza Stealer ...
- Silent Intrusions: Godzilla Fileless Backdoors Targeting Atlassian Confluence
August 30, 2024
Trend Micro observed a new attack vector of weaponization for the vulnerability CVE-2023-22527 using the Godzilla backdoor. Following initial exploitation, a loader was loaded into the Atlassian victim server which loads a Godzilla webshell. On January 16, 2024, Atlassian released a security advisory for CVE-2023-22527, a vulnerability that affects Confluence Data Center and Confluence Server products. In ...
- Deep Analysis of Snake Keylogger’s New Variant
August 28, 2024
Fortinet’s FortiGuard Labs recently caught a phishing campaign in the wild with a malicious Excel document attached to the phishing email. Fortinet researchers performed a deep analysis on the campaign and discovered that it delivers a new variant of Snake Keylogger. Snake Keylogger (aka “404 Keylogger” or “KrakenKeylogger”) is a subscription-based keylogger with many capabilities. It ...
- HZ Rat backdoor for macOS attacks users of China’s DingTalk and WeChat
August 27, 2024
In June 2024, Kaspersky discovered a macOS version of the HZ Rat backdoor targeting users of the enterprise messenger DingTalk and the social network and messaging platform WeChat. The samples Kaspersky found almost exactly replicate the functionality of the Windows version of the backdoor and differ only in the payload, which is received in the form ...
- Security gaps leave local governments vulnerable to a variety of cyber threats
August 21, 2024
Cities and counties are beefing up their IT security, and that makes sense, says Augustine Boateng, interim chief information officer (CIO) in Memphis, Tenn. “It’s important to note that local governments have developed a reputation over the years for having lackluster cybersecurity; and not without good reason. As a result, we’re seeing more and more cyberattacks ...
- Selling Ransomware Breaches: 4 Trends Spotted on the RAMP Forum
August 20, 2024
The sale and purchase of unauthorized access to compromised enterprise networks has become a linchpin for cybercriminal operations, particularly in facilitating ransomware attacks. Underground forums are sharing guidelines on breaching networks and selling the access they obtain, leaving the exploitation to other malicious actors. On underground criminal forums, these transactions allow actors with complementary skills to ...
- An investigation into the tools and methods used by the Higaisa group
August 19, 2024
In March 2020 specialists from the PT Expert Security Center conducted an analysis on the activities of the APT group Higaisa. This group was first studied by security analysts at Tencent in November 2019. In that analysis, Tencent specialists reached the conclusion that Higaisa has its origins in South Korea. The group, which is still active ...
- Unmasking Styx Stealer: How a Hacker’s Slip Led to an Intelligence Treasure Trove
August 16, 2024
In the shadowy world of cybercrime, even the most cunning hackers can make blunders that expose their operations. In this article CPR describes the discovery of Styx Stealer, a new malware variant derived from the notorious Phemedrone Stealer. Check Point investigation revealed critical missteps by the developer of Styx Stealer, including a significant operational security (OpSec) ...
- A Deep Dive into a New ValleyRAT Campaign Targeting Chinese Speakers
August 15, 2024
FortiGuard Labs recently encountered an ongoing ValleyRAT campaign specifically targeting Chinese speakers. This malware has historically targeted e-commerce, finance, sales, and management enterprises. ValleyRAT is a multi-stage malware that utilizes diverse techniques to monitor and control its victims and deploy arbitrary plugins to cause further damage. Another noteworthy characteristic of this malware is its heavy usage ...