SprySOCKS

Pierluigi Paganini June 17, 2026
China-Linked FishMonger Ports SprySOCKS to Windows With Kernel-Level Stealth and UEFI Bootkit Hints

China-linked FishMonger used two SprySOCKS Windows variants that leveraged kernel drivers and the Print Spooler to target governments in four countries. ESET researchers have found two previously undocumented Windows versions of SprySOCKS, a backdoor that the security community had until now treated as Linux-only. Trend Micro first documented the Linux variant in September 2023 and […]

Pierluigi Paganini September 19, 2023
Earth Lusca expands its arsenal with SprySOCKS Linux malware

China-linked threat actor Earth Lusca used a new Linux malware dubbed SprySOCKS in a recent cyber espionage campaign. Researchers from Trend Micro, while monitoring the activity of the China-linked threat actor Earth Lusca, discovered an encrypted file hosted on a server under the control of the group. Additional analysis led to the discovery of a […]