New Linux Backdoor Utilizing DNS-over-HTTPS Tunneling for Covert CnC

Jun 16, 2023Ravie LakshmananEndpoint Security / Network Security The threat actor known as ChamelGang has been observed using a previously undocumented implant to backdoor Linux systems, marking a new expansion of the threat actor’s capabilities. The malware, dubbed ChamelDoH by Stairwell, is a C++-based tool for communicating via DNS-over-HTTPS (DoH) tunneling. ChamelGang was first outed…

New Linux Backdoor Utilizing DNS-over-HTTPS Tunneling for Covert CnC

Jun 16, 2023Ravie LakshmananEndpoint Security / Network Security The threat actor known as ChamelGang has been observed using a previously undocumented implant to backdoor Linux systems, marking a new expansion of the threat actor’s capabilities. The malware, dubbed ChamelDoH by Stairwell, is a C++-based tool for communicating via DNS-over-HTTPS (DoH) tunneling. ChamelGang was first outed…

Activities in the Cybercrime Underground Require a New Approach to Cybersecurity

As Threat Actors Continuously Adapt their TTPs in Today’s Threat Landscape, So Must You Earlier this year, threat researchers at Cybersixgill released the annual report, The State of the Cybercrime Underground. The research stems from an analysis of Cybersixgill’s collected intelligence items throughout 2022, gathered from the deep, dark and clear web. The report examines…

Third Flaw Uncovered in MOVEit Transfer App Amidst Cl0p Ransomware Mass Attack

Jun 16, 2023Ravie LakshmananCyber Attack / Ransomware Progress Software on Thursday disclosed a third vulnerability impacting its MOVEit Transfer application, as the Cl0p cybercrime gang deployed extortion tactics against affected companies. The new flaw, which is yet to be assigned a CVE identifier, also concerns an SQL injection vulnerability that “could lead to escalated privileges…

Ransomware Hackers and Scammers Utilizing Cloud Mining to Launder Cryptocurrency

Jun 15, 2023Ravie LakshmananCryptocurrency / Ransomware Ransomware actors and cryptocurrency scammers have joined nation-state actors in abusing cloud mining services to launder digital assets, new findings reveal. “Cryptocurrency mining is a crucial part of our industry, but it also holds special appeal to bad actors, as it provides a means to acquire money with a…

Ransomware Hackers and Scammers Utilizing Cloud Mining to Launder Cryptocurrency

Jun 15, 2023Ravie LakshmananCryptocurrency / Ransomware Ransomware actors and cryptocurrency scammers have joined nation-state actors in abusing cloud mining services to launder digital assets, new findings reveal. “Cryptocurrency mining is a crucial part of our industry, but it also holds special appeal to bad actors, as it provides a means to acquire money with a…

GravityRAT Android Trojan Steals WhatsApp Backups and Deletes Files

Jun 15, 2023Ravie LakshmananMobile Security / Privacy An updated version of an Android remote access trojan dubbed GravityRAT has been found masquerading as messaging apps BingeChat and Chatico as part of a narrowly targeted campaign since June 2022. “Notable in the newly discovered campaign, GravityRAT can exfiltrate WhatsApp backups and receive commands to delete files,”…

LockBit Ransomware Extorts $91 Million from U.S. Companies

The threat actors behind the LockBit ransomware-as-a-service (RaaS) scheme have extorted $91 million following hundreds of attacks against numerous U.S. organizations since 2020. That’s according to a joint bulletin published by the U.S. Cybersecurity and Infrastructure Security Agency (CISA), Federal Bureau of Investigation (FBI), the Multi-State Information Sharing and Analysis Center (MS-ISAC), and other partner…

Chinese Hackers Exploit VMware Zero-Day to Backdoor Windows and Linux Systems

Jun 14, 2023Ravie LakshmananZero-Day / Network Security The Chinese state-sponsored group known as UNC3886 has been found to exploit a zero-day flaw in VMware ESXi hosts to backdoor Windows and Linux systems. The VMware Tools authentication bypass vulnerability, tracked as CVE-2023-20867 (CVSS score: 3.9), “enabled the execution of privileged commands across Windows, Linux, and PhotonOS…

Chinese Hackers Exploit VMware Zero-Day to Backdoor Windows and Linux Systems

Jun 14, 2023Ravie LakshmananZero-Day / Network Security The Chinese state-sponsored group known as UNC3886 has been found to exploit a zero-day flaw in VMware ESXi hosts to backdoor Windows and Linux systems. The VMware Tools authentication bypass vulnerability, tracked as CVE-2023-20867 (CVSS score: 3.9), “enabled the execution of privileged commands across Windows, Linux, and PhotonOS…