net5system.exe is highly suspicious and is widely flagged by security analysts as malicious activity
Open Task Manager ( Ctrl + Shift + Esc ), find net5system.exe , right-click it, and select . net5system.exe
Submit a file for malware analysis - Microsoft Security Intelligence net5system
rule net5system_malware meta: description = "Detects known net5system.exe malicious samples" author = "Security Research" strings: $s1 = "net5system" nocase $s2 = "XMRig" ascii wide $s3 = "pool.supportxmr" ascii $s4 = "miner.exe" ascii condition: (filesize < 2MB) and (1 of ($s2,$s3,$s4)) and filename == "net5system.exe" 2MB) and (1 of ($s2
To understand the suspicion surrounding this file, we must deconstruct the name itself. Malware authors often use a technique known as "mimicry." They combine legitimate-sounding technical terms to create a filename that an average user might hesitate to delete.