AsyncRAT has emerged as a notable Remote Access Trojan (RAT) used by threat actors for its robust capabilities and ease of deployment. It gained favor for its extensive feature set, which includes keylogging, screen capturing, and remote command execution capabilities.
Its modular architecture, typically implemented in Python, provides flexibility and ease of customization, making it a preferred tool of choice for cybercriminals. During Trend Micro investigation of AsyncRAT infections, we observed Python scripts playing a central role in the infection chain, automating various stages of the attack. The initial payload, a Windows Script Host (WSH) file, was designed to download and execute additional malicious scripts hosted on a WebDAV server.
Read more…
Source: Trend Micro
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- North Korean Kimsuky Actors Leverage Malicious QR Codes in Spearphishing Campaigns Targeting U.S. Entities
January 8, 2026
The Federal Bureau of Investigation (FBI) is releasing this FLASH to alert NGOs, think tanks, academia, and other foreign policy experts with a nexus to North Korea of evolving tactics employed by the North Korean state-sponsored cyber threat group Kimsuky and to provide mitigation recommendations. As of 2025, Kimsuky actors have targeted think tanks, academic institutions, ...
- Patch Cisco ISE bug now before attackers abuse proof-of-concept exploit
January 8, 2026
Cisco patched a bug in its Identity Services Engine (ISE) and ISE Passive Identity Connector (ISE-PIC) products that allows remote attackers with admin-level privileges to access sensitive information – and warned that a public, proof-of-concept exploit for the flaw exists online. ISE is Cisco’s network access control and security policy platform, and companies use it to ...
- CISA warns of active attacks on HPE OneView and legacy PowerPoint
January 8, 2026
The US Cybersecurity and Infrastructure Security Agency (CISA) added both a newly discovered flaw and a much older one to its catalog of Known Exploited Vulnerabilities (KEV). The KEV catalog gives Federal Civilian Executive Branch (FCEB) agencies a list of vulnerabilities that are known to be exploited in the wild, along with deadlines for when they ...
- Illinois health department exposed over 700,000 residents’ personal data for years
January 8, 2026
The health department for the U.S. state of Illinois has confirmed that a years-long security lapse exposed the personal information of more than 700,000 state residents. The Illinois Department of Human Services (IDHS) said in a statement on January 2 that an internal mapping website containing residents’ personal information, which officials used for assisting with the ...
- Fake WinRAR downloads hide malware behind a real installer
January 8, 2026
A member of Malwarebytes Labs web research team pointed the author to a fake WinRAR installer that was linked from various Chinese websites. When these links start to show up, that’s usually a good indicator of a new campaign. So, the author downloaded the file and started an analysis, which turned out to be something of ...
- Hackers use ‘Blue Screen of Death’ malware to target victims
January 6, 2026
Russian cybercriminals are trying to deploy backdoors and infostealers on people’s computers through a new ClickFix campaign – but this one comes with a sinister twist. ClickFix attacks are usually centered around pop-ups – the victim gets an error message, and at the same time is offered a fix. That fix, be it to run a ...