Possible malicious .NET compilation started by a commonly abused process

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-04
Category
Analytics Alert Reference
Order
Alert name

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

1 Day

Required Data

  • Requires:
    • XDR Agent

Detection Modules

ATT&CK Tactic

Defense Evasion (TA0005)

ATT&CK Technique

Obfuscated Files or Information: Compile After Delivery (T1027.004)

Severity

Medium

Description

Attackers may use csc.exe to compile payloads on a compromised machine.

Attacker's Goals

Compile payloads on the host to evade detection.

Investigative actions

  • Investigate the payload being compiled.
  • Check whether the executing process is benign, and if this was a desired behavior as part of its normal execution flow.