- AN1381 · Analytic 1381 — Detects compilation activity using csc.exe, ilasm.exe, or msbuild.exe initiated by user-space processes outside typical development environments, followed by execution or network activity from newly written binaries.
- AN1382 · Analytic 1382 — Detects GCC or Clang invoked on suspicious file paths (e.g., /tmp/, ~/Downloads) with output to executable binaries, followed by execution or outbound traffic from these binaries.
- AN1383 · Analytic 1383 — Detects non-standard compilation activity via Xcode CLI tools or bundled GCC/MONO packages writing new executable files and executing them outside dev environments (e.g., user Downloads folder).
AdversaryGraph public intelligence page
This page is part of Threat Matrix, the public browser workspace for the main AdversaryGraph platform. Use it for ATT&CK pivots, actor and technique context, similarity leads, detection coverage review, and analyst-ready investigation paths.
Validation disclaimer: TTP overlap, actor similarity, generated summaries, and coverage findings are investigation leads, not attribution proof or operational validation without analyst review.
Main AdversaryGraph project Documentation Malware Analysis GitHub
Compile After Delivery
Adversaries may attempt to make payloads difficult to discover and analyze by delivering files to victims as uncompiled code. Text-based source code files may subvert analysis and scrutiny from protections targeting executables/binaries. These payloads will need to be compiled before execution; typically via native utilities such as ilasm.exe, csc.exe, or GCC/MinGW. Source code payloads may also be encrypted, encoded, and/or embedded within other files, such as those delivered as a Phishing. Payloads may also be delivered in formats unrecognizable and inherently benign to the native OS (ex: EXEs on macOS/Linux) before later being (re)compiled into a proper executable binary with a bundled compiler and execution framework.
Open detection, hunting, mitigation, and evidence workspace
Detection logic
Monitor the execution file paths and command-line arguments for common compilers, such as csc.exe and GCC/MinGW, and correlate with other suspicious behavior to reduce false positives from normal user and administrator behavior. The compilation of payloads may also generate file creation and/or file write events. Look for non-native binary formats and cross-platform compiler and execution frameworks like Mono and determine if they have a legitimate purpose on the system. Typically these should only be used in specific and limited cases, like for software development.
Observed actors
Correlated CTI and IR reports
Cyber Knowledge context
Use these routes to move from the ATT&CK behavior into explanation, implementation, evidence handling, validation, and defensive operations. Relevance is generated from explicit identifiers/names and governed topic mappings; it is not attribution evidence.
Architecture, calling conventions, and assembly literacy
Malware Analysis & Reverse Engineering · Governed topic match · 30/100Controlled dynamic behavior and differential observation
Malware Analysis & Reverse Engineering · Tactic learning route · 24/100Module 4 — Detection engineering and detection as code
Blue Team & Defensive Security · Tactic learning route · 24/100Disk, file-system, and persistence forensics
Digital Forensics & Incident Response (DFIR) · Tactic learning route · 24/100
Malware Analysis & Reverse Engineering · Governed topic match · 30/100Controlled dynamic behavior and differential observation
Malware Analysis & Reverse Engineering · Tactic learning route · 24/100Module 4 — Detection engineering and detection as code
Blue Team & Defensive Security · Tactic learning route · 24/100Disk, file-system, and persistence forensics
Digital Forensics & Incident Response (DFIR) · Tactic learning route · 24/100
MITRE mitigations
No ATT&CK mitigation relationship is published for this technique. Apply risk-based controls and verify scope.