Researchers have disclosed TWINLOOT, a modular Python implant framework that leverages trusted Microsoft services like SharePoint Online and Teams to establish command-and-control infrastructure while remaining difficult to detect. The PyArmor-hardened malware is designed to steal credentials and facilitate lateral movement across networks by operating within legitimate Microsoft cloud services. This approach allows attackers to blend malicious activity with normal enterprise traffic on trusted platforms.
Read full article at The Hacker News ↗Plus: Apple sends out an “unprecedented” number of spyware warnings, Ukraine hits a Russian ecommerce giant with cyber and drone attacks, and more.
Three banking trojans are currently active threats: Manic, which incorporates spyware capabilities; Grandoreiro, which maintains persistent campaigns targeting victims in Latin America and Europe; and ToxicPanda 2.0, an expanded variant of the ToxicPanda malware. Security professionals should monitor these banking trojans as they demonstrate ongoing development and geographic targeting sophistication.
Researchers at KnowBe4 have identified a new variant of Agent Tesla malware employing innovative emoji-based code obfuscation techniques to bypass security detection systems. This v4 iteration represents an advancement in the malware's evasion capabilities, demonstrating attackers' ongoing efforts to stay ahead of traditional threat detection methods.
Threat actors are leveraging the popularity of AI tools by impersonating well-known brands like Perplexity, Claude, ChatGPT, and Copilot to distribute malware including information stealers, backdoors, and malicious browser extensions. According to Sophs' analysis of 12 months of managed detection and response cases, 34 confirmed instances of malicious AI-related activity were identified, demonstrating the effectiveness of AI brand impersonation as a social engineering vector.