Day 4/10: The Breach : Understanding Exploitation

If the previous phases were about planning and delivery, this is the moment of impact when the attacker's malicious code actually executes on the target environment.

Getting that initial access usually happens through a few common techniques. Sometimes it relies on human error, like a victim opening a phishing email and allowing a malicious macro to execute ransomware. Other times, attackers scan for and exploit Known CVEs public vulnerabilities that the target simply hasn't patched yet. The most dangerous avenue, however is a ZeroDay exploit. These take advantage of completely unknown flaws, meaning there is virtually zero opportunity for early detection.

The attack doesn't stop at the front door, though. Once inside, threat actors immediately start looking for ways to escalate their privileges or move laterally across the network by exploiting further system or server based vulnerabilities.

When analyzing this from a Security Operations Center (SOC) perspective, spotting this phase is all about vigilant monitoring. Defenders need to hunt for indicators like unexpected process spawns, unauthorized registry changes, new anomalous services being created, or suspicious command-line arguments hidden within system logs.