Behavioral Graphs and Pattern Recognition

Modern EDRs build behavioral graphs from telemetry and syscall traces:

1. Each process and event is a node

2. Relationships (e.g., injection, file write, DNS resolution) form edges

3. Graphs are analyzed for known attack patterns (e.g., LOLBAS abuse, beaconing behavior)

Example:

An attacker abuses MSBuild.exe to execute shellcode. The EDR graphs:

• MSBuild’s parent (e.g., Outlook)

• File operations

• DNS request to suspicious domain

• Memory write + thread creation

Even if the shellcode is not known (no signature), the pattern itself may trigger alerts.

Evasion Tip: Break expected graph patterns (e.g., spread actions across multiple processes), or operate below the radar (e.g., sleep beacons, stage payloads).