Code Defender

New GPUThor Rowhammer Defeats ECC on NVIDIA RTX A6000 to Gain Host Root Access

Academic researchers have disclosed a Rowhammer attack impacting NVIDIA workstation GPUs with GDDR6 memory that defeats error correction codes (ECC), the mitigation NVIDIA recommends against GPU Rowhammer, and enables denial-of-service (DoS) and privilege escalation to a root shell.

Dubbed GPUThor, the attack was developed by researchers at the University of Toronto, who hammered four DRAM

  • August 27, 2026

GoCaracal Malware Uses Ethereum Smart Contract to Fetch Replacement C2 Address

Threat actors linked by Arctic Wolf to Dark Caracal with medium confidence deployed a previously undocumented Go-based malware framework, GoCaracal, during a June 2026 intrusion at an unnamed communications organization in Venezuela.

GoCaracal provides operators with remote shell access and payload execution, while the extended profile adds browser data theft, keylogging, remote desktop control

  • August 27, 2026

Spark RAT Targets Cambodia, Abuses Vulnerable OPSWAT Driver to Disable Security Tools

Individuals and organizations in Cambodia have emerged as the target of a new campaign that delivers an open-source remote access trojan (RAT) called Spark RAT.

“The samples employ diverse lure themes, suggesting an effort to appeal to a broad range of potential victims. These include government notices, public health materials, real estate-related content, and other topics,” Acronis Threat

  • August 27, 2026