VirusTotal-0-Detection

BYOVD loads a signed vulnerable driver, exploits it for arbitrary kernel R/W, and terminates EDR at Ring 0 — Windows-only, noisy at driver load time, requires admin. User-space injection (Phantom Evasion Loader) uses SROP frames via sys_rt_sigreturn to fire ptrace without a direct ptrace syscall sequence, writes payload in a single process_vm_writev call (syscall 311), redirects RIP into target process — implant runs inside cron’s address space with cron’s identity. Linux-only. Results: 0/65 VirusTotal static, SROP and process_vm_writev invisible to Hatching Triage behavioral sandbox, only ptrace attach entry detected.

Standard ptrace injection generates detectable syscall sequences that EDR hooks intercept. Phantom Evasion Loader routes ptrace through SROP frames: crafting a fake sigcontext on the stack and firing sys_rt_sigreturn (syscall 15) causes the kernel to restore arbitrary register state — ptrace fires through the signal return path, invisible to direct syscall monitors. process_vm_writev (syscall 311) writes the full payload in one cross-process memory operation instead of 204 PTRACE_POKEDATA events. QWORD XOR decryption runs in-memory before injection. Results: 0/65 VirusTotal static, SROP + process_vm_writev invisible to Hatching Triage behavioral sandbox.