Cybersecurity researchers have disclosed details of a previously undocumented China-aligned threat cluster known as Bronze Sandcastle that has been observed targeting organizations in Asia and Africa since mid-2025.
“The most distinctive technical marker for Bronze Sandcastle is its consistent use of Sandboxie DLL sideloading,” Sophos security researcher Gabor Szappanos said in a post published Cybersecurity researchers have disclosed details of a previously undocumented China-aligned threat cluster known as Bronze Sandcastle that has been observed targeting organizations in Asia and Africa since mid-2025.
“The most distinctive technical marker for Bronze Sandcastle is its consistent use of Sandboxie DLL sideloading,” Sophos security researcher Gabor Szappanos said in a post published The Hacker News