Stealth Cyber Attacks: How Hackers Remain Undetected

You Should Know:

1. Stealth Attacks: The Silent Threat

Hackers often use malware that remains dormant for months, collecting data without triggering alarms.
Command to detect unusual processes in Linux:
```
ps aux | grep -i suspicious_process_name
```
Windows Command to check for unusual network connections:
```
netstat -ano | findstr ESTABLISHED
```

2. Legitimate Connection Hijacking

Hackers use stolen credentials to access systems as legitimate users.
Linux Command to monitor user login activity:
```
last
```

Windows Command to check recent logins:

Get-EventLog -LogName Security -InstanceId 4624 -Newest 10

3. Indirect Attacks via Third-Party Vendors

Compromised vendors can serve as entry points for hackers.
Linux Command to check for open ports and services:
```
nmap -sV -p 1-65535 localhost
```

Windows Command to list all active services:

Get-Service | Where-Object {$_.Status -eq "Running"}

What Undercode Say:

Cybersecurity is not about being perfect but being prepared. Regularly monitor your systems for unusual activities, ensure all user accounts are up-to-date, and conduct frequent security audits. Use the provided commands to keep a vigilant eye on your network and system activities. For more detailed guidance, refer to Cybersecurity Best Practices and NIST Cybersecurity Framework. Stay proactive and always assume that a threat could already be lurking within your systems.