Eset+nod32+antivirus+and+smart+security+803191

It looks like you’re referencing and ESET Smart Security along with the number 803191 .

Uses award-winning technology to neutralize viruses, ransomware, and spyware. Performance First: eset+nod32+antivirus+and+smart+security+803191

The full picture was horrifying. The malware—which Aris mentally christened "Frostwyrm"—had been dormant for six months. It had entered via a poisoned PDF attachment on a climate scientist's email (caught by ESET's email filter, but the attachment was a zero-day exploit that slipped past the initial scan). It had then used a UEFI rootkit to survive reboots. The NOD32 engine, however, had a unique property: it scanned memory pages in real-time, not just files. When Frostwyrm finally tried to execute its final, destructive payload—the command to rewrite the valve firmware—the heuristics engine saw a piece of code that looked like a file infector but acted like a logic bomb. Hash 803191 was its unique signature. It looks like you’re referencing and ESET Smart

: Independent labs often certify ESET for its balance of high protection and low system impact. Usage and Availability The NOD32 engine, however, had a unique property:

: Controls all incoming and outgoing traffic to prevent unauthorized access. Vulnerability Shield